How to cut a pipe at an angle 45. How to cut a pipe at an angle

Pipes are a widely used building material. They are used in the installation of various systems. A common thing during the installation process is the situation when pipes need to be joined at an angle. However, the technology for the production of such works is not quite common. To create such a connection configuration, cutting the pipes at an angle is required. Consider how such operations are performed and what cutting methods exist.

Considering the methods of work - cutting straight or at an angle - one should take into account the different material of the products being processed. So, sleeves made of polypropylene or thin copper are easier and easier to cut than thick-walled steel pipes.

Plastic products of small diameters are cut at the desired angle using special scissors. In this case, you can control the angle with a conventional protractor.

It is very common to cut pipes in the process of working with these installation elements. A popular tool for such cases is the so-called grinder. This tool cuts straight and at an angle.

The most common installation need is cutting water or other pipes at an angle of 45º. Let's find out what devices can be used for cutting at this and other angles.

Paper pattern for pipe

To perform a relatively accurate cut, you can apply a simple technique, where an ordinary sheet of paper acts as a kind of pattern. For example, A4 printer paper is well suited for creating patterns. Previously, the sheet is marked under the square using a ruler. The size of the diagonal of the square should be equal to the circumference of the pipe to be cut. Excess parts of the sheet are cut off.

The easiest way to get a marking line on a pipe for making a cut at an angle of 45 degrees. A regular sheet of paper is used, which is superimposed on the pipe body in the cut area

  1. Bend the sheet diagonally, aligning opposite corners.
  2. Rotate the resulting triangle so that the hypotenuse line is perpendicular to the axis of the pipe.
  3. In this position, wrap the pipe surface with paper, aligning the extreme points of the hypotenuse together.
  4. Make a cut mark with a marker along the line of any of the legs of the triangle.
  5. Cut the pipe along the marked line.

In this way, it is quite convenient to mark and cut pipes at an angle of 45º in the diameter range from 32 to 63 mm. For greater convenience of marking, it is recommended to take thick but soft paper. You can also use paronite and similar materials.

Cutting angle calculation programs

The technology of cutting according to patterns allows you to get different cut angles. But to form a pattern at angles other than 45º, it will already be necessary to perform mathematical calculations and, according to the calculated data, cut out a pattern from paper or similar materials. True, there are computer programs designed to save the master from making calculations. Patterns for cutting pipes such programs are printed on a printer.


This is how the window of a computer program that calculates the cut angle for a circular section looks like. According to the results of the calculation, a pattern is drawn, which can be printed by a printer. A template is cut out according to the pattern

A simple calculation program, created on the basis of MS Excel, allows you to calculate and draw up a pattern for almost any values ​​of pipe diameters and required cutting angles. All the user needs to do is enter the appropriate values ​​in the "Outer Diameter" and "Cut Angle" cells. Based on these parameters, a pattern will be formed, which can be sent for printing.


An example of a pattern obtained by the calculation method in the popular Excel program. The calculation of the points of passage of the curve is carried out on the basis of only two specified parameters - the diameter of the pipe and the required angle of cut

The disadvantage of the program is that it does not take into account the thickness of the pattern sheet, which leads to minor inaccuracies.

Pipe cutting miter box

There is a simple tool, often used in everyday life, mainly for woodworking. It's called a stool. So, the same device is suitable for cutting pipes, and at different angles. The miter box is commercially available, but if you wish, you can always make it yourself and adjust the design to the desired pipe diameter:

  1. Take a wooden board with a width equal to the diameter of the pipe, 400-500 mm long.
  2. Take two more boards of the same dimensions, but increased in width by the thickness of the first board.
  3. From three boards, assemble a structure in the form of an inverted letter "P", where the first board is installed as the base.
  4. In the central part of the structure, mark out a rectangle, the two sides of which run along the inner borders of the side boards.
  5. Divide the rectangle diagonally and along the lines obtained on the upper edges of the side boards, make cuts down to the base.

In this way, a template for cutting at an angle of 45º is made. But with the help of a protractor, you can mark almost any corner and make cuts for a pipe cut for a specific angle. The advantage of the miter box is that the tool is suitable for repeated use. Working with the tool is acceptable up to such a degree of wear of the walls of the slots, as long as they can provide high cutting accuracy. It is recommended to make tool walls from a material of higher strength than wood.


This looks like a possible design of the miter box - a device thanks to which it is also possible to cut pipes at different angles. However, the miter box, as a rule, is convenient to use for cutting pipes of small diameters and with a small wall thickness.

The advantages of the method are obvious - simplicity, ease of manufacture of the instrument (miter box), economy, versatility. The disadvantages of working with this option of equipment is the need to adjust the dimensions of the miter box to the pipe diameter, provided that an accurate cut is made. That is, for each pipe you have to make your own tool.

Also, using a miter box, you can cut a pipe only with a hacksaw for metal or secateurs (for plastic products). To work with thick-walled metal pipes under the cut with a grinder, this tool is not suitable.

Simple cutting tool

Metal products of round and rectangular shapeshaving sufficiently thick walls, it is convenient to cut at an angle using uncomplicated equipment of electromechanical action. The cutting element of such a tool is a cutting disc or circular saw, mounted on the motor shaft. In turn, the electric motor with a cutter is part of the entire equipment, which includes a work table, a pendulum support, a clamp.


Electromechanical device for cutting tubular elements, including at different angles. It uses a disc cutter and a simple mechanical system for fixing the pipe in different positions

To install the pipe at the desired angle, followed by its fastening, an ordinary clamp and two metal corners are used. One corner (short) is attached to the base of the swivel mechanism - the pendulum. The second corner (long) is in a free state.

Pipe laying and cutting procedure:

  1. The required cutting angle is set by the rotary mechanism (for example, using a ruler and a protractor).
  2. The found position is fixed with clamping screws.
  3. A pipe is laid between the short and long corners and pressed with a clamp screw.
  4. Voltage is applied to the motor.
  5. By applying a slight pressure force to the cutter disc, the pipe is cut in the right place.

The advantages of this technique are fast work, accurate cut, the ability to process a large number of pipes in a short period of time. Disadvantages: restrictions for use in domestic conditions, increased noise, work with pipes of only small and medium diameters. In addition, the process of cutting with a tool is performed stationary at a distance from the installation site, which is not always acceptable.

The nuances of working with a rectangular section

To perform cutting of products of rectangular section, it is recommended to prepare template cuts of corners in advance. They are easy to make from a metal corner, having previously marked with the same protractor.


Cutting rectangular pipes (profile elements) at the desired angles is usually done using templates. Such templates are made from metal corners of different sizes.

Marking can be done at different angles. To use a template in business, it is enough to attach it to a rectangular pipe in the right place and mark the cut line. Then, with any suitable tool, cut along the intended line.

Precision cutting machines

Among branded devices that could be used in everyday life for cutting at an angle, you can pay attention to Italian-made equipment. The Mini Cut band saw from MASS is a small-sized device with a manual clamp, for working not only with pipes, but also with angles, bars, profile elements.


Convenient and productive machine for cutting pipes of small and medium diameters. The cutter is made on the basis of a strip steel blade, which can be installed to perform a cut at an angle

The machine supports setting the cutting angle from 0 to 45º. The procedure is carried out using a tape blade at a speed of 45 reciprocating movements per minute. The device is equipped with a 370 W electric motor, which is powered by a household network. The maximum allowable diameter of the cut round pipe is 65 mm.

Industrial models (on the example of BSM)

There are special machines for industrial use to perform precise miter cutting operations. A good example is devices manufactured under the BSM brand. The machine tool manufacturer is the German company Rexinger. True, the machines of the BSM series are designed exclusively for working with polypropylene pipes of sufficiently large diameters. Processing of products such as PP, PVC, PE, PVDF is supported.


Industrial machine for cutting tubular products from polymers. Designed to work with products of large diameters, but has equipment for processing pipes from 50 mm. The machine provides cutting in a wide range of angles

The cutting tool of the machine is a band saw, thanks to which the cut is made at angles from 0 to 67.5º. The accuracy of the process is ensured by the laser cut recognizer. Despite the configuration of the device for products of large diameters, a special table can be used, with which pipes of small diameters (50 - 200 mm) are also successfully cut. A wide range of BSM devices is produced.

The use of thermal methods

In addition to mechanical methods, thermal methods are often used, where welding or cutting machines work as a tool. For example, an oxy-fuel cutting torch or a conventional welding machine (DC/AC). With the help of such devices, thick-walled metal pipes are available for cutting. However, it is extremely difficult to obtain a perfectly even, high-quality cut using electric welding or gas autogenous welding.


Cutting technology using electric welding and autogenous welding is widespread. The technique does not provide high cutting accuracy, but this factor is often not decisive when installing pipes.

Usually, after thermal cutting, the products are subjected to additional processing. The cut line is aligned, the values ​​of the required angle are adjusted. This approach is not economically viable, as it is accompanied by additional costs for machining. As a rule, a thermal cutting technique is used in the conditions of the industrial and production sphere. True, housing and communal services also often resort to this technique.

Thermal cutting is also used to work with plastic material. There are devices - thermal guillotines. The sharp thin blade of such devices is heated to a high temperature, after which the cut is performed.

Thermal guillotines support cutting at an angle, and this is their advantage. However, to work with more rigid materials than polyvinyl chloride, wood, chipboard, these devices cannot be used.

Video: how to cut a pipe

The video presents calculations and shows a workshop on how to cut a pipe at angles of 45 and 90:

For each individual installation case, you can choose the most convenient and least expensive cutting method. The specific choice depends on the material of the pipe, its diameter, wall thickness. Using simple marking methods, you can get a fairly accurate angle at which you want to cut the workpiece. At the same time, by referring to a complex calculation technique, it is possible to cut at non-standard angles with high accuracy.

When installing a pipeline, it is often necessary to cut the pipe at a certain angle. Accuracy plays a big role in this task. There are several easy wayshow to cut a pipe at an angle.

An incorrect cut of the pipe will lead to the impossibility of mounting the structure of the form that was originally conceived. For example, if you plan to rotate the system by 45 degrees, then you need to cut the pipe at 45 degrees. To complete the task, you will need marking tools and a grinder (it can be replaced with a hacksaw).

Paper corner marking

Paper sheet marking is one of the easiest ways to complete a task. Requires a square sheet. It folds exactly diagonally. The resulting template for cutting pipes must be wrapped around the product so that the long side runs parallel to its cross section.

Then on the smaller side an angle of 45 degrees is formed. It remains to mark the cut line with a construction pencil or marker on a sheet of paper.



Marking method using a container of water instead of a pattern

This marking method is suitable for small diameter pipes, which are planned to be cut at a certain angle near the edge. First you need to prepare a deep container with water. It marks the planned angle of inclination. Now you need to carefully immerse the end of the product in the liquid, tilt it to the mark, and then pull it out.

As a result of such actions, a clear line of contact with water will appear on it, it must be highlighted. On it, the pipe is cut at an angle. This method is best suited for jobs where multiple markings are required.

Using the PC program

To implement this method of marking pipes for cutting, you will need a computer with special programs. First you need to draw up a drawing, which indicates the transverse dimensions of the product, as well as the planned cut angle. You need to get a virtual template.

Print it out on your printer. And here it is worth understanding that the larger the diameter of the pipe, the more sheets will be required to print it. Then you need to carefully cut out the details of the drawing from all pages and glue it, it is best to use stationery tape for this. It remains to attach the template to the pipe and apply the markup.



This method of solving the problem is highly accurate. All necessary programs can be downloaded on the Internet, they are free to download and use. There you can also find a template for cutting pipes at an angle. All you have to do is print it out and cut it out. To perform marking, the pattern simply wraps around the pipe.

How to cut a profile pipe at an angle

The marking of the profile pipe is different from the round one. Its manual execution can lead to significant errors. The best way to solve the problem is to create a cutting template from the same profile, but with a larger diameter.

You will need a small piece of profile pipe. On it, using a goniometer, mark an angle of 45 degrees. Now, with the help of a grinder, it is necessary to cut off part of the workpiece along the marked line. The edges of the cut must be sanded, defects eliminated. It remains simply to insert the original product into the template for cutting pipes at an angle. Then you need to apply markings along the cut line of a larger profile. And already the pipe itself is cut along it.



The text describes how to cut a pipe at an angle of 45 degrees. When the markup is already completed, it is recommended to use the grinder. It will help you make a straight cut. You can replace it with a hacksaw. It will also be possible to cut the product by welding, but experience in handling the tool is needed, otherwise there will be irregularities.

Now in hardware stores you can find special tools for cutting pipes. But it is easier and cheaper to make a template yourself.

Quite often, when performing various construction or repair work, it becomes necessary to cut the pipe. It can be plumbing work, laying pipelines or installing heating systems, but in any case, you need to know how to cut the pipe evenly. Some features of this task will be discussed below.

45 degree cutting

One particular example of this situation is the need to cut a metal pipe at an angle of 45 degrees. Such material cutting is often required when laying plumbing or heating systems. In this case, you have to deal with steel pipes. For these purposes, conventional cylindrical pipes are usually used. If we are talking about the installation of some metal structures, then profile pipes of rectangular or square section are more often used. The main problem here is that in order for the elements to be joined to match, the cut must be as even as possible, which means that special attention should be paid to marking the material.

When cutting at an angle is required, a simple square sheet of paper can be used as a marking template. It must be folded strictly diagonally, and then wrap the pipe with a template. In this case, it is necessary to carefully ensure that the side of the sheet, which is located closer to the end of the pipe, is perpendicular to its central axis. Next, using the marking material, a series of dotted lines is applied, and after the marking is completed along the entire circumference, the template can be removed.

If you have to cut a profile pipe, then it is advisable to make a special template from the same pipe, but with a larger section. In this case, you will have to use measuring devices only once. For marking, you will need to use a protractor or a construction square. After sawing off the template, the pipes to be cut can simply be inserted into it and marked. This approach will significantly save work time and it will be convenient to cut a profile pipe at 45 degrees.

As for what to use when carrying out work, here it is worth choosing the most suitable and familiar one. It can be both simple and a grinder with a cutting disc installed.

90 degree cutting

When it becomes necessary to cut at 90 degrees, the situation is even simpler. In the case of cylindrical elements, the same sheet of paper with which the pipe is wrapped can be used as a template. It is important to ensure that the edge of the sheet is even and coincides around the entire circumference. After marking, the cut element is fixed and the cut is made.

The video shows the process of cutting a pipe at 90 degrees.

How to cut a profile pipe straight

You can cut a profile pipe in much the same way, but here it will be easier to use a square. The device is alternately applied to each side, for which the cut element will need to be rotated, and markings are applied. Next, the pipe must be fixed motionlessly and you can start work.

Any suitable tool can be used for sawing. If you have to cut pipes a lot, then it is advisable to make full-fledged templates from scraps. In this case, measuring and marking work will have to be done only once.

Cutting large diameter pipes

When it is necessary to cut a large diameter pipe, a number of special devices and tools can be used. This may be required if, for example, a pipeline needs to be repaired.

  • Bulgarian. The use of a grinder is justified in terms of the availability of the tool and the relative cheapness of the work. However, in this case, you should not count on greater productivity, in addition, carrying out work in this way is associated with considerable risk.
  • Roller machine. Such devices are also often called pipe cutters. In fact, such a device is the same angle grinder, but more adapted for this type of work. The machine includes a special frame, where the element to be cut is fixed, as well as a holder with installed cutting rollers, which perform direct work. It is important to understand that each machine must be purchased for specific tasks, that is, for the size of the pipes.
  • Gas cutting. This option is most often used when working with large diameters. The cutting is carried out by means of a high-intensity flame, and the resulting waste is blown out by the pressure of the gas. The method can be considered the most practical and effective.

There are other options for carrying out the task, such as the use of plasma, waterjet or laser cutting, but in private use they are practically not used.

How to cut a cast iron pipe

If the pipe is made of cast iron, then in order to cut it evenly, you will have to apply certain knowledge. The fact is that this material is characterized by high fragility, which means that before cutting off such a pipe, it is necessary to determine the algorithm of actions.

  • We mark it in the same way as steel pipes.
  • In the place of the cut, you need to put a wooden beam as a support.
  • Next, you need to cut a few millimeters around the entire circumference.
  • After that, a chisel is inserted into the groove and a sharp and strong blow with a hammer must be applied.

As a result, it will split along the line, forming a fairly even cut point, which, if necessary, can be further processed.

How to cut along

Another frequently asked question is how to cut the pipe evenly with a grinder along. Here the algorithm of actions will be approximately the same as for transverse cutting. It is important to pay attention to marking. You can, for example, use paint thread, which is usually used when marking walls. In this case, it is necessary to firmly fix the pipe. The sawing process itself must be carried out carefully and slowly, since when sawing long elements, there is a high probability of the cutting disc slipping off the marking line.

How to cut thin wall pipes

Another type of pipes are thin-walled products. They are usually made from non-ferrous metals such as aluminum or copper. Cutting thin-walled pipes is more difficult, since the element is likely to deform. In this case, you can use some kind of filler, such as sifted sand. As a tool, you can use a grinder, a hacksaw for metal or a special machine. It all depends on the specific situation.

Cutting metal pipes is a rather time-consuming, but do-it-yourself process. At the same time, work with round pipes does not fundamentally differ from cutting a profile pipe. The main thing to remember is that when performing work, you must follow the safety rules.

During various works, home craftsmen are sometimes faced with the need to mark and cut pipes at forty-five degrees.

There are a large number of industrial production devices for cutting pipes at different angles, but the cost of such devices is quite high. The article will consider ways to mark pipes for a 45-degree cut at home, without the use of expensive fixtures.

Marking and cutting profile pipes

Marking a profile pipe at first glance seems to be a fairly simple matter. However, rounded corners with manual marking will give a serious error. For this reason, it will be more convenient to make the simplest device for marking a profile pipe. Cutting metal pipe at 45° With the use of this device, it becomes much easier.

45 degree pipe cutter is a piece of U-shaped steel profile, cut at an angle of 45 degrees. The dimensions of the profile are selected in such a way that the pipe to be marked fits freely into it. To make this device, you will need the following tools:

  • goniometer;
  • Scriber for metal;
  • Angle grinder (Bulgarian);
  • cutting disc;
  • File.

Such a device for cutting pipes is made quite simply. It is convenient to use it for cutting a large number of pipes, for example, for welding a frame.

A blank about 20-30 centimeters long is cut out of the profile. Using a goniometer, an angle of 45 degrees is marked at one of the ends of the segment. After marking, with the help of a grinder, the profile is cut. On the resulting template, it is necessary to check the accuracy of the angle. If necessary, the template is finalized with a file.

Cutting a pipe at forty-five degrees using such a template is greatly simplified. The pipe blank is inserted into the template and marked with a scriber. When marking, it is necessary to control the length of the workpiece. After that, the pipe is cut according to the marked marks with the help of a grinder.

The pipe is cut along diagonal lines on both sides, after which straight marking lines are cut. This pipe miter cutter saves time and money.

Marking and cutting pipes at an angle of circular cross section

When it is necessary to cut a round pipe at an angle of 45 degrees, the fixture discussed above may not be suitable. Cutting the pipe at 45 degrees in this case is done according to paper patterns wrapped around the workpiece. The template for marking can be downloaded.

Such patterns are printed from special computer programs. Also on the Internet you can find and print ready-made patterns for the most common pipe sizes. Whatever method of pipe cutting is chosen, it is necessary to monitor the accuracy of marking. This affects the accuracy of the cut.

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When installing a pipeline, quite often you have to cut the pipe at an angle. Moreover, the angle should have just the degree that is needed for the design. If the corner is not made correctly, it is unrealistic to make exactly the dimensions of the pipeline that were supposed to be done. For example, the pipe will rotate 45 degrees during installation, therefore, you need to know how to cut the pipe at 45 degrees. To do this, we need marking tools, a grinder or a hacksaw.

Marking with a sheet of paper

One of the easiest ways is to mark the corner with a piece of paper. We fold the square sheet strictly diagonally. We take the pipe and wrap it with a folded page so that the edges of the diagonals are against each other. So, on the smaller side of the page, we ended up with a 45 degree angle. We take any marking tool and mark the place of the future pipe cut along the page line. So that the markings are not accidentally erased, it is possible to use narrow tape. This marking method is convenient for a long pipe of huge diameter, and the cut point of which is somewhere in the middle.

Use of a water container


What to do if we are dealing with a pipe of small diameter, and you need to cut the pipe at an angle somewhere near the edge? A deep container filled with water will come to the rescue. Before starting work, you need to calculate the angle of inclination and make a mark on the container. Then we just have to carefully lower the edge of the pipe into the water and tilt it to the mark on the container. We remove the pipe, mark the line of contact with the water, and boldly cut along the markings. This method is optimal when marking a huge number of pipes. A ready-made template from a container of water will speed up the process of our work.

Computer program to help


I would also like to consider a method of marking through a computer program. This is a super complicated way for those who are not used to working with a computer. It requires knowledge of a PC, the availability of programs for sweeps and drawings. We begin work with the execution of the drawing, indicating the size of the circle and the slope. We make the so-called virtual template.


After that, using the printer, we print the image on a sheet of paper. The larger the diameter of the pipe, the more pages with markup will be. We cut out all the parts of the drawing with scissors and, using adhesive tape, glue them together. The finished template is applied to the pipe, and we make markings along the edge of the paper. This method of marking is considered one of the most correct. If the computer does not have such programs, it is possible to use the Internet. On the network it is possible to download a pattern for marking. It also needs to be printed on a printer and cut out. We wrap the finished pattern near the pipe and make markings.

If the pipe is profiled


But, for example, we have a profile pipe, not a round one. Manual marking of a profile pipe can lead to a huge error. The best way out of this situation will be a template made from a profile with a larger diameter. Let's take a small piece of a profile pipe and use a goniometer to mark an angle of 45 degrees. We cut off according to the markings with a grinder and grind the edges so that during work we do not get hurt on the burrs. Then we just have to insert a profile of a smaller diameter into the template and, after marking, cut it off.

In this article, we looked at how to cut a pipe at 45 degrees. Using one of the methods listed above, make a markup and make a cut. For a more even cut, it is better to use a grinder. When cutting by welding, experience is required, otherwise there will be irregularities on the cuts. In extreme cases, you can use a hacksaw for metal. Currently, there are a large number of different devices for cutting pipes at an angle on sale, but their purchase requires extra costs. It is easier and cheaper to make a template for yourself once, and apply it as needed.

Video

That is why the video you will determine how to cut the pipe at an angle of 45 or 90 degrees using a computer program.

When working with construction or plumbing tasks, you need to know how to cut the pipe evenly with a grinder. In the article, we will consider quick and easy ways of how to properly cut a pipe with a grinder so that the result is perfect.

Pipe cutting at 45 and 90 degree angles

If you need to cut the pipe at an angle of 45 degrees, which is often required when laying water and heating pipes. Often used steel, cast iron pipes, which have a cylindrical shape. In installation work, rectangular or shaped pipes are used. However, you should correctly cut the pipe with a grinder, so that you can easily connect it later. Therefore, you should carefully mark the pipe.

Some masters try to mark the place of the cut with a tape measure, but we warn you that the result will most likely turn out to be negative. And for a positive result, consider the following recommendation of professionals.

Take a sheet of paper or cardboard, A4 is better, fold it diagonally and wrap it around the pipe, where you plan to cut evenly. The edges of the paper must absolutely match each other. And the side of the paper that is closer to the end of the pipe was perpendicular to the axis. Then mark the cut line in a circle.

If you need to cut exactly at an angle of 90 degrees, then solve the problem quickly using again paper or masking tape. Wrap around the pipe so that the ends match up. Make an even markup and saw off.

How to cut a profile pipe straight?

Masters advise using a square when cutting a profile pipe. To do this, apply the square in turn to the sides, and turn and mark with smooth movements. After the action, fix the pipe and cut. Prepare yourself a template that will come in handy in the future and save time. It is better to perform the action with a grinder, so the cut will be smoother.

How to cut cast iron pipe?

When working with cast iron pipe, keep in mind that this is a fragile material. Therefore, we will direct a method with which it will be possible to cut such a metal without damage.

Before starting work, make marks for the cut, as with steel pipes. Place a wooden beam for support. Walk the grinder around the circumference of the pipe, making small cuts. Then take the chisels, insert into the groove and hit hard with a hammer. Be aware that Bakelite cutting discs are used to cut cast iron pipes.

If there is no grinder at hand, to cut a cast-iron sewer pipe or other purposes, use a hacksaw, chisels or special pipe cutters.

How to cut a gas pipe?

Cutting a gas pipe is dangerous, so it's best to leave it to the professionals. But if you are confident in your abilities, then take a grinder, welding, hacksaw, gas welding to cut metal.

Trimming instruction:

  • Shut off the gas supply before work. Then release the rest of the gas from the pipe. To do this, set fire to the gas in the burners and wait for it to go out.
  • After the actions taken, cut. Using the welding method, the metal base burns out when exposed to high temperature. The result is fast and efficient. But remember that cutting or rooting gas pipes again requires experience.

Large Diameter Pipe Cutting Methods

For cutting large diameter pipes, such as sewers, there are a number of reliable tools available. Let's take a look at some of them in detail:

  • Bulgarian is an inexpensive and affordable option, but it is considered not the safest in working with such materials. Once you decide to use this method, then be careful and use protective equipment.
  • A roller machine (pipe cutter) is such a tool adapted for such manipulations. The device is attached and material removal begins. The clamping force is adjusted by means of mechanical devices. It is important to note that machine models differ in shape, so consider the size relationship with the pipe before use.
  • Flame cutting is the most popular option for cutting larger diameter pipes and sheet metal. The cut occurs due to the action of a high-intensity flame, the metal melts and exits the cut zone with a gas flow. This method is convenient and efficient.

How to cut a pipe lengthwise correctly?

A quick way to cut a pipe lengthwise with a grinder:

  • Focus on the markup.
  • Use for this case a paint thread, which has found distribution when marking walls.
  • Before starting work, fix the pipe and with small movements, carefully saw the pipe.
  • It is better not to rush, but delicately and slowly process the parts of the pipe, so the cutting disc does not come off the marking lines. Remember safety precautions.

How to cut thin wall pipes?

Thin-walled pipes are made of non-ferrous metals: aluminum, copper. Such work should be done delicately, as there is a high probability of deformation of the material. For cutting, fillers are used, for example, sand. Actions can be carried out using a grinder, a special machine.

Summing up, we emphasize that cutting metal pipes is a complicated process, but every master can strengthen it. Using the advice of professionals, you can easily cope with the cut of pipes of various sizes and materials. Also do not forget to process the edges of the pipes after the cut with a file or sandpaper. And the most important thing to remember when starting such actions is safety. When starting work, put on a special suit (casing), a mask or closed-type goggles. Your hands should also be protected from sparks, so use thick gloves.

Pipes are the most common type of metal and plastic products. They are used to transport a wide variety of gases and liquids. At the factories, rolled products are produced in a certain length. To mount them in place in a pipeline, heating, water supply or sewerage system, they must be cut to the desired length. Pipes are cut evenly and with a bevel. For this, many cutting methods and a variety of equipment are used.

Tools Used

An operation that is simple at first glance - cutting pipes in practice reveals many nuances and pitfalls. Not so - then just cut the tubes evenly:

  • Thin-walled.
  • Large diameter.
  • With bevel.

It is very important to choose the appropriate cutting method and special equipment for each specific case. It is divided into individual, domestic and industrial.

For individual use

They are used in households, private construction and small businesses. They deal with small and medium diameters (up to 250 mm) used in systems

  • Water supply.
  • Heating.
  • Sewer.
  • Ventilation.

Such tools include:

  • Cutters. They are used to cut polymer pipes evenly up to 75 mm. For a smooth and accurate cut, they have a gear mechanism. The workpiece is first clamped with a shelf clamp, which securely fixes it and does not allow it to leave the cut line.
  • Disc cutter. Suitable for ventilation and sewer polymer pipes with a diameter of up to 200 mm. The blade is not a pruning type, but in the form of a disk rolling on the surface of the workpiece. The cut is made in several turns. Not suitable for metal-plastic rolled products, as it can crush a thin metal liner.
  • Guillotine. The flat oblique knife moves in guides and allows you to cut exactly the required length in one pass. It is produced both with an electric drive, which provides greater productivity, and with a manual one.
  • Hacksaw for metal. The classic metalwork tool allows you to evenly cut the workpiece clamped in a vise. When using it, it is important to guide the saw smoothly, with constant force and without distortion. The burrs formed after working with a hacksaw should be cleaned with a file.
  • Angle grinder, angle grinder. In everyday life it is called "Bulgarian". This universal tool can handle any materials and diameters. In order to cut the pipe with a grinder, special abrasive cutting discs are used.
  • Electric jigsaw. A very popular tool among home craftsmen can also cut pipes, but due to the flexible blade being pulled to the side, accuracy can only be dreamed of.
  • Saber saw. The tool has not yet become widespread among Russian masters. The adjustable stop of the saw and its powerful blade allow you to cut the rolled metal even while hanging and close to the wall.

cutting technology

As a rule, the volume and complexity of the work to be done by a home master does not require the use of high-performance and expensive production-level equipment. In the manufacture of the frame of the greenhouse, it is possible to completely cut the pipes with a grinder or a traditional hand saw.

Each type of incision has its own nuances, and some require special tricks.

Right angle

The accuracy of the cut is largely determined by the quality of the markup. Experienced craftsmen advise marking the cut lines not with a pencil, but with masking tape, following the following sequence of actions:

  • Set aside the required size and put a small mark with a marker or pencil.
  • Gently, applying to the mark, paste over the part with masking tape in a circle. The edges of the paper should meet without shifting. This is a sign that the paper is pasted correctly. If the edges do not meet, the adhesive tape must be re-glued.
  • Securely fix the workpiece to prevent its movement and warping during operation. For fixing use a vice, clamps.
  • The cut off (smaller) piece of the workpiece should be left on the weight so that it does not clamp the blade or disk.
  • The incision starts from the top.
  • The grinder disk (or hacksaw blade) is guided exactly along the edge of the masking tape, without deviating to the side.

This will allow you to cut exactly the required length.

If the diameter is large, then the marking is performed in the same way, but cut in parts, in sectors of 30-60 °. After cutting through the next sector, the fasteners are loosened and the pipe is rotated. Then they fix it again and continue to cut off from the place where the previous sector ended. To make it even, special attention should be paid to the beginning of the cut, avoiding steps and nicks.

Oblique cut at 45°

Cutting the pipe end exactly at 45° is possible without the use of complex fixtures. It is enough to apply locksmith ingenuity. You will need to do the following:

  • Cut out a piece of paper in the shape of a square.
  • Fold diagonally. A right-angled isosceles triangle will learn.
  • Wrap the workpiece with a sheet so that the leg of the triangle is perpendicular to the axis, and the hypotenuse forms an ascending spiral.
  • Secure the sheet with tape.
  • Fix the workpiece and cut along the oblique edge of the sheet. It turns out at 45 °.

There is another folk method. The end of the workpiece is immersed in a container with liquid at the required angle. You need to cut off along the border of the wetted and dry areas.

If you want to cut not perpendicular, then it is better to use an old carpentry tool - a miter box.

This is a U-shaped template, in the side walls of which cuts have already been made at given angles. The pipe rests against the wall of the miter box farthest from the master and is pressed there with a hand or a manual clamp. The hand saw blade is inserted into the appropriate grooves and sawn. If necessary, cut at a different angle, additional cuts can be made in the walls of the miter box.

Angled pipe cutting techniques

Non-perpendicular cutting techniques depend on the material being processed. Some techniques are suitable for plastic or thin copper - materials that are ductile and easy to work with. Thick steel will require a more serious approach.

Plastic pipes of small diameters can be cut using specialized scissors.

Steel pipes can be cut with a grinder, but it is better to use a more accurate tool - a band saw with a turntable equipped with clamps. A table saw will also work.

When using a general purpose tool, you will definitely have to use one or another snap.

Cutting angle calculation programs

A 45° cut template can be obtained by folding a square piece of paper in half. To form patterns for other bevels, you will need to perform more or less complex trigonometric calculations. For those who have successfully left sines and cosines in high school and are not going to remember the formulas, many programs for calculating patterns for any required angle are available on the network. The program performs the calculation for the user-specified diameter and angle of the cut and creates an image of the pattern, which should be printed on your printer.

Important: in the print settings, select the option "full size" and turn off image scaling.

To cut evenly at 45 °, you can make a paper pattern yourself. For this you should:

  • Measure or calculate the length of the outer circumference.
  • From the corner of a sheet of A4 printer paper, draw a line at an angle of 45°. If there is no protractor, such a line can be obtained by adding together the edges of the sheet adjacent to the corner.
  • Mark the circumference on it.
  • This will be the hypotenuse. Construct an isosceles right triangle to it. One side will be the edge of the paper, the second should be lowered perpendicular to the second edge from the pending point.
  • Cut out the resulting triangle - this will be the template for cutting pipes at an angle of 45 °.

It should be wrapped around the workpiece, aligning the ends of the hypotenuse. A cut will pass along the line of the legs. The line should be marked with a marker or paper tape. Further along the marked line, it will be possible to cut off a piece evenly with the required bevel.

The method is suitable for pipes with a diameter of up to 63 millimeters.

Carpenters have long used a simple but very useful device to cut the ends of bars, rectangular, round and shaped, evenly at an angle. A carpenter's miter box is well suited for sawing off plastic or thin metal pipe.

You can use ready-made, or you can make a miter box with your own hands. Its advantage is that it can be made exactly to the size of the pipe. For manufacturing you will need:

  • Cut a board with a length of 40-50 cm and a width equal to the pipe diameter.
  • Cut two boards the same length, but wider by the thickness of the first board.
  • Assemble the boards on self-tapping screws, attaching the side ones to the base so that you get a U-shaped gutter.
  • In the center, mark and make vertical cuts in the side boards to the base so that the straight line drawn through them forms angles of 90, 60, 45 and 30 ° with the longitudinal axis of the structure.
  • If necessary, make cuts at other angles.

The side walls are best made of wood of more durable species - this will extend the life of the equipment.

  • inconvenient to work with large diameters and wall thicknesses
  • linking each snap to its diameter
  • only compatible with hacksaw

Simple cutting tool

The universal pendulum saw blade cutter is excellent for cutting evenly at an angle thick-walled pipes of large diameter, both round and rectangular in section. Such devices work in the harvesting areas of small industries and on construction sites, where it is required to cut a large amount of rebar evenly to size.

The circular saw, together with the electric motor, is mounted on a pendulum lever and can be brought into the working area with great accuracy and then cut in one plane.

Advanced devices are equipped with an articulated arm that allows you to change the direction of the cut. In models of the lower and middle price segment, the orientation of the cut line is carried out by means of a turntable equipped with clamps for reliable fixation of the workpiece. In addition, the table can tilt to the side up to 45°. The turntable and the lifting mechanism are equipped with protractors that allow you to set the angle with an accuracy of up to a degree.

To securely fix the pipe at a given angle, a clamp and two steel corners with a side close to the diameter of the pipe are used. A short corner is fixed on a rotary desktop using its standard screw clamps. Mounting and cutting process step by step:

  • Set the turntable to the desired cutting angle and secure it.
  • Lay the pipe between the corners and tighten them with a manual clamp so that the marked cut line remains free.
  • Start the engine.
  • After a set of revolutions, smoothly bring the disk to the surface of the metal and cut the workpiece evenly. At the beginning and end of the cut, when the cross section of the metal being cut is maximum, do not apply much effort to the pendulum handle.

The main advantages of this method:

  • high performance even with thick walls
  • even and smooth cut requiring minimal cleaning and filing
  • no need to build patterns.

Admission features and disadvantages:

  • applicability to small and medium diameters
  • high machine cost
  • low mobility
  • high power consumption and noise

The nuances of working with a rectangular section

To cut a rectangular profile evenly, experts recommend preparing templates in advance. The easiest way is to make templates from a steel angle of sufficient size, marked for the desired bevel. This greatly saves marking time with a large volume of the same type of cuts.

The corner is placed on the profile pipe from the side and the cut line is marked on the beveled side with a marker or scriber. It is recommended to repeat it with paper tape.

Precision cutting machines

Band saws are distinguished by high stability of the plane of movement of the blade and cutting accuracy. They are also widely used in the harvesting areas of small-scale and medium-scale production. They are characterized by versatility, reliability and high performance.

For private use, MASS from Italy offers a compact band saw unit. It is equipped with a manual clamping device and can smoothly cut pipes up to 65 mm in diameter, as well as rolled products of any profile of the same thickness.

The rotary device allows you to set an arbitrary cutting direction from 0 to 45 °. The frequency of movement of the cutting blade is up to 45 cycles per minute. An economical 370 watt motor allows you to use a regular home single-phase power supply with a voltage of 220 V.

The use of thermal methods

In addition to mechanical, thermal methods of cutting pipes are also widely used. Here, the tool is a gas cutter (propane or acetylene) or an electric arc welding machine. Even the thickest-walled pipes of large diameter are subject to a gas cutter. The performance is also quite high. In addition, only these methods provide exceptional mobility - you can cut the pipe in a trench, basement - in places where a high-performance stationary machine cannot simply be dragged and connected.

It should be noted that thermal methods do not allow achieving high accuracy, and it is not always possible to cut evenly. However, in a number of applications, such as the operational repair of heating mains or main pipelines, it is not required. After a thermal cut, the resulting edges have to be further processed with mechanical tools, the cut line is aligned and the bevels are brought to the design values.

The thermal cutting method is also used when working with polymer tubular products. In thermal guillotines, the cut is carried out with a thin oblique cutter heated to a high temperature, sliding in the guides.

The devices can also cut at an angle and very straight, but are only suitable for working with soft materials that have a low melting point.

How to cut a profile pipe straight

It is recommended to use a bench square when marking. The required size is marked on the first side, the square is applied to the mark and a marking line is drawn. Further, without lifting the square from the angle between the faces, smoothly turn it to another, apply a marking line, turn it again and mark the third face. If the lines converge on the last edge, then the markup is done correctly.

Now you can fix the workpiece and cut off the desired length with a grinder or a hacksaw.

Cutting large diameter pipes

If you want to cut exactly a large diameter pipe, for sewerage or at the entrance to the site, use the following tools:

  • Angle Grinder. Affordable, but not very safe way. Requires a certain skill. Be sure to use personal protective equipment.
  • Roller cutter. This is a fairly complex unit, specially designed for such work. It is mounted on the pipeline, covering it from the outside. The pressing force of the cutting rollers is regulated by mechanics or automation. Each diameter requires its own tooling.
  • Gas cutter. The most commonly used method. The method is quite safe with sufficient qualifications of the gas welder and observance of safety rules. Requires a cutting torch, acetylene or propane cylinders.

How to cut a cast iron pipe

Cast iron as a material has its own specifics and differs from steel alloys in a number of physical and mechanical characteristics. With high strength, cast iron is a very brittle material.

The cast-iron pipe is marked in the same way as the steel pipe. Before starting work, wooden blocks should be placed for support. An angle grinder with a cutting disc needs to make a shallow cut around the entire circumference. Next, a chisel inserted into the incision must be struck with great force. The product will split evenly along the line of the file.

If the angle grinder is not available, you will have to make an annular notch with a hacksaw.

How to cut along

Not often, but sometimes you still need to cut the pipe lengthwise. You should proceed as follows:

  • Carefully mark the cutting line. Use chopping thread, marker or masking tape.
  • Fasten the pipe, provide a support for the hand along the entire cutting line next to the pipe.
  • Slowly, slowly moving the angle grinder disc along the incision line and maintaining the support of the hand, perform the incision. You should constantly monitor the depth of immersion of the disc into the cut so as not to saw through the opposite wall.

How to cut thin wall pipes

When working with thin-walled products, there is a high risk of crushing the cut edges. To avoid this, fill the profile from the inside:

  • when working with a hacksaw, insert a round wooden stick of a suitable diameter

What tools are used to cut pipes

Tools for home and semi-professional use

Industrial equipment

Pipe cutting technique

straight cut

Miter cutting

In everyday life, we are constantly faced with the need to lay pipelines from various materials, whether it be plumbing, sewerage, heating, installation of cable channels or even the construction of frame structures in a house or country house. This article will tell you how to cut a pipe evenly for one purpose or another, if you do all the work yourself, that is, it provides detailed instructions for all technological operations. In addition, let's talk about the variety of tools for amateur or industrial use.

At first glance, it may seem that cutting pipes is a fairly simple process that is not worth a separate mention. However, this is not quite true. It's one thing when you don't need precise even cuts at an angle of 90º or any other, since there will be no further welding or joining of the ends. And it’s a completely different matter when you need to make an absolutely accurate cut. Note that if it is necessary to cut oblique ends with an exact angle, it is worth consulting with experienced craftsmen.

Separately, it is worth mentioning pipes with a large diameter, when joined, a cut of exactly 90º should be provided. Be that as it may, all these operations are performed using special equipment.

Tools for home and semi-professional use

For the arrangement of water supply or sewage systems, heating and ventilation circuits in home construction or in the provision of construction services, tools from this category are often used.

Among the most common devices are:

  1. Cutters with secateurs design. Such a tool is used for cutting pipes made of polymers, the cross section of which does not exceed 75 mm. The gear mechanism of the device allows you to apply the force necessary for work. The design of such a cutter provides a special shelf on which the pipe is laid, which ensures the evenness of the cut strictly at 90º. Prices for such tools can be very different, it all depends on their quality, dimensions, capabilities, manufacturer and other factors.
  2. Disc type pipe cutter. In such a device, the pipe is cut by a special disk, which is made of durable material and has sharpened edges. With the help of a lever, the cutting disc is pressed against the surface of the pipe and drawn along its section. See also: "How to choose a pipe cutter for steel pipes and how to use it."

The optimal solution for such a tool would be for cutting PVC pipes used in the assembly of indoor and outdoor sewage systems. At the same time, metal-plastic pipes cannot be processed with such a pipe cutter, since the material is deformed from the load.

  1. guillotine knife. The principle of its operation is probably familiar to every educated person. In the upper part of the structure there is a blade that goes down through special grooves and makes an even, clear cut. For convenience, you can get a device with an electric drive. With this device it is easy and convenient to cut a large number of pipes. At the same time, tools with a screw mechanism can also be found at points of sale.
  2. Hacksaw for metal. Such a seemingly simple tool can be successfully used to cut pipes from any material. The main thing is not to overdo it in the process of work, so that the saw blade does not break from excessive effort.

Since it is not entirely possible to cut the pipe evenly with a hacksaw, burrs will still appear, the ends will have to be cleaned with a file or a shaver. Otherwise, when joining pipes, insufficiently tight seams may result.

  1. Angle grinder, or, in other words, grinder. The process of how to cut a pipe evenly with a grinder is not particularly difficult. To work on it, disks of the desired diameter are installed and cutting is performed. Moreover, the processing can be carried out on pipes with different sections and any materials, be it polymers or metal.
  2. Electric jigsaw. Although this tool is also widely used in construction, it is not very suitable for cutting pipes, since it is quite difficult for them to cut the pipe evenly.

Consequently, there are many handy tools that are easy to operate, so you should not look for difficult ways when everything can be done quickly and easily.

In addition to hand tools for work in the household and small construction, there is also professional equipment that is used in industry and for laying large main water lines.

Industrial equipment

In professional construction and when working with large engineering facilities, the question of how to cut a large diameter pipe evenly is solved using special equipment. Quite often, these are stationary units with a certain set of qualities.

Among the most interesting and functional devices are the following:

  1. Lathe of various modifications. Using such a machine, you can evenly cut a profile pipe for both ordinary water supply and especially durable products through which liquids with an aggressive environment will pass.

The maximum section of the processed pipe will vary depending on the distance between the support heads and the diameter of the holes in the spindle. These units can be called universal, because they can cut, chamfer, and also carry out a number of other actions, often in automatic mode.

  1. Band type cutting machines. Such units are used for cutting pipes of water or sewer lines, previously laid in trenches or carried out in a building.

The cutting tape machine can process pipes, even those that have undergone quite a strong deformation. Additionally, such a cutter can chamfer the desired shape.

  1. Cutting machines with disc knives. Equipment of this type is capable of cutting pipes from any metal, including non-ferrous. In addition, they have no restrictions on the shape of the product - they can be both round and profiled, with a rather large cross section.

As a rule, such units are installed on conveyor belts and are additionally equipped with a machine that, after cutting, collects and packs a given number of pipe sections, which will then be sent to customers.

  1. Manual blade cutters.

    They are used mainly in cases where the cutting of a large number of pipes is required directly at the places of their installation. On such machines, there is a special clamp that tightly covers the pipe during cutting, preventing its displacement and deformation. Due to this quality, such equipment can be successfully applied to metal-plastic, and to copper or steel pipes.

A number of disc-type cutters have built-in orbital welding and a rotation system, which allow cutting and subsequent joining of parts with one mechanism. Such a device can be very useful if it is necessary to perform a very large amount of work on cutting, welding or joining pipes without stationary equipment.

However, such a multifunctional fixture is not necessary if you have a small amount of work that does not require complex mathematical calculations and compliance with standards.

Often, pipes can be cut evenly with the help of simple improvised tools that every owner can find.

Pipe cutting technique

We immediately note those cases when work must be carried out to install a heating system.

In this situation, you will need to purchase a special pruner - it will allow you to cut the pipes evenly without deforming them, and its cost is low. But simpler work can be done with simple improvised means.

straight cut

It is possible to make an even cut at an angle of 90º only after marking. Use a sheet of paper or masking tape.

How and with what to cut pipes of different sections and materials: options for solving the problem

The latter is preferable, because it is attached directly to the surface and does not move.

The sequence of actions looks like this:

  1. Measure a segment of the desired length with a tape measure, mark this place with a dash with a marker.
  2. Further, according to the received mark, adhesive tape is glued around the circumference of the pipe. The more evenly you stick the adhesive tape, the better - optimally, so that the wide edges converge as accurately as possible. This will allow you to make an accurate cut of the pipe according to the mark.
  3. In the next step, the pipe is fixed in a vice or pressed against a flat plane so that it does not move during operation, and an even seam is obtained. Note that one end of the pipe must be left in a free position so that during the cutting process the disk is not clamped by the walls. Cutting starts from top to bottom.
  4. The last thing you need to follow is how to cut the pipe evenly with a grinder. To do this, you need to guide the disc as accurately as possible along the edge of the glued adhesive tape.

In cases where pipe products with large sections are cut, the work must be done in small sectors. To do this, the pipe will have to be constantly rotated around the axis after the completion of the next cut.

When working with cast iron pipes, the scheme of actions will be somewhat different. First, a continuous incision is made along the entire diameter of the product, then, using a chisel and a hammer, the resulting gutter is gradually tapped, as a result of which the pipe should split strictly along the cut line.

Miter cutting

In this case, we will tell you how to cut a pipe at an angle of 45º. Marking will be needed in this case too (for more details: “How to cut a pipe at an angle - marking options for a round and profile pipe”).

To apply it, you need a square paper sheet that needs to be folded diagonally. The resulting triangle is wrapped around the pipe and fixed. This will give you a 45 degree angle.

Of course, you can try to lower the pipes under the desired slope into the water, then the border of the wet surface will serve as a marking. However, it is best to use a special device for angular cutting - a miter box.

The shape of the miter box looks like an inverted letter "P". Ready-made holes with different angles have already been made in its opposite walls. It is enough just to place the pipe inside the fixture and cut it by running a hacksaw along the selected grooves.

Results

Thus, it is quite simple to make an even cut of a pipe from any material on your own. In this case, there are only a few tricks that will allow you to quickly and efficiently carry out all the work and build yourself the necessary object for the household or summer cottage. We also note that it is better to check the measurements several times before starting cutting, because you can accidentally make a mistake and spoil the material, while incurring additional financial losses.

If the beginning of the strip coincides with the end, then you pasted the adhesive tape correctly. If the beginning of the tape strip and the end do not match by more than 2 mm, it is better to re-glue it. Adhesive tape should be glued evenly, without wrinkles and distortions. The wider the tape, the more accurate the resulting line will be.

Before cutting the pipe, it is desirable to fix it so that it is more convenient to cut. If you don’t have a carpentry workbench (and where does it come from in an ordinary apartment), you can fasten two wooden bars to an old table or to an old stool so that a pipe fits between them. In this case, the pipe will still need to be held, but it will not ride. If you need to make a lot of cuts, then it is better to make special bars and press the pipe with them:

Now you can cut, you can do it in the following ways:

1. Hacksaw for metal.

The most common way. The only drawback is that the cut may turn out to be a curve, in order to avoid this, it is advisable not to cut immediately, but to turn the pipe 3-6 times. It will look something like this:

2.

Electric jigsaw.

The fastest and most convenient way after scissors.

7 ways to cut metal pipes

But the cut can also turn out to be a little oblique on sewer pipes with a diameter of 50 mm. Here, too, it is advisable not to cut immediately, but to turn the pipe 2-3 times. If you need to saw off a pipe with a diameter of 100 mm or more, then first you need to drill a series of holes with a thin drill (2.5-3 mm) in order to insert a jigsaw file into the pipe.

3. Manual circular saw.

This method is only suitable for thick-walled water pipes.

If the cut still turned out to be not very even or not straight, the end of the pipe can be processed with sandpaper. And at the end of the sewer pipe, for better docking, you need to chamfer, this can be done with a knife, but it is more convenient with the same sandpaper.

How to cut a pipe straight with a grinder?

When working with construction or plumbing tasks, you need to know how to cut the pipe evenly with a grinder. In the article, we will consider quick and easy ways of how to properly cut a pipe with a grinder so that the result is perfect.

Pipe cutting at 45 and 90 degree angles

If you need to cut the pipe at an angle of 45 degrees, which is often required when laying water and heating pipes. Often used steel, cast iron pipes, which have a cylindrical shape. In installation work, rectangular or shaped pipes are used. However, you should correctly cut the pipe with a grinder, so that you can easily connect it later. Therefore, you should carefully mark the pipe.

Some masters try to mark the place of the cut with a tape measure, but we warn you that the result will most likely turn out to be negative. And for a positive result, consider the following recommendation of professionals.

Take a sheet of paper or cardboard, A4 is better, fold it diagonally and wrap it around the pipe, where you plan to cut evenly.

The edges of the paper must absolutely match each other. And the side of the paper that is closer to the end of the pipe was perpendicular to the axis. Then mark the cut line in a circle.

If you need to cut exactly at an angle of 90 degrees, then solve the problem quickly using again paper or masking tape. Wrap around the pipe so that the ends match up. Make an even markup and saw off.

How to cut a profile pipe straight?

Masters advise using a square when cutting a profile pipe. To do this, apply the square in turn to the sides, and turn and mark with smooth movements. After the action, fix the pipe and cut.

Cut the pipe straight

Prepare yourself a template that will come in handy in the future and save time. It is better to perform the action with a grinder, so the cut will be smoother.

How to cut cast iron pipe?

When working with cast iron pipe, keep in mind that this is a fragile material. Therefore, we will direct a method with which it will be possible to cut such a metal without damage.

Before starting work, make marks for the cut, as with steel pipes. Place a wooden beam for support. Walk the grinder around the circumference of the pipe, making small cuts. Then take the chisels, insert into the groove and hit hard with a hammer. Be aware that Bakelite cutting discs are used to cut cast iron pipes.

If there is no grinder at hand, to cut a cast-iron sewer pipe or other purposes, use a hacksaw, chisels or special pipe cutters.

How to cut a gas pipe?

Cutting a gas pipe is dangerous, so it's best to leave it to the professionals. But if you are confident in your abilities, then take a grinder, welding, hacksaw, gas welding to cut metal.

Trimming instruction:

  • Shut off the gas supply before work. Then release the rest of the gas from the pipe. To do this, set fire to the gas in the burners and wait for it to go out.
  • After the actions taken, cut. Using the welding method, the metal base burns out when exposed to high temperature. The result is fast and efficient. But remember that cutting or rooting gas pipes again requires experience.

Large Diameter Pipe Cutting Methods

For cutting large diameter pipes, such as sewers, there are a number of reliable tools available. Let's take a look at some of them in detail:

  • Bulgarian is an inexpensive and affordable option, but it is considered not the safest in working with such materials. Once you decide to use this method, then be careful and use protective equipment.
  • A roller machine (pipe cutter) is such a tool adapted for such manipulations. The device is attached and material removal begins. The clamping force is adjusted by means of mechanical devices. It is important to note that machine models differ in shape, so consider the size relationship with the pipe before use.
  • Flame cutting is the most popular option for cutting larger diameter pipes and sheet metal. The cut occurs due to the action of a high-intensity flame, the metal melts and exits the cut zone with a gas flow. This method is convenient and efficient.

How to cut a pipe lengthwise correctly?

A quick way to cut a pipe lengthwise with a grinder:

  • Focus on the markup.
  • Use for this case a paint thread, which has found distribution when marking walls.
  • Before starting work, fix the pipe and with small movements, carefully saw the pipe.
  • It is better not to rush, but delicately and slowly process the parts of the pipe, so the cutting disc does not come off the marking lines. Remember safety precautions.

How to cut thin wall pipes?

Thin-walled pipes are made of non-ferrous metals: aluminum, copper. Such work should be done delicately, as there is a high probability of deformation of the material. For cutting, fillers are used, for example, sand. Actions can be carried out using a grinder, a special machine.

Summing up, we emphasize that cutting metal pipes is a complicated process, but every master can strengthen it. Using the advice of professionals, you can easily cope with the cut of pipes of various sizes and materials. Also do not forget to process the edges of the pipes after the cut with a file or sandpaper. And the most important thing to remember when starting such actions is safety. When starting work, put on a special suit (casing), a mask or closed-type goggles. Your hands should also be protected from sparks, so use thick gloves.

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