We bend the profile pipe with our own hands. How to bend a profile pipe with your own hands at home without a pipe bender: video

Profile pipes are indispensable in the process of assembling frames for building structures. Greenhouses, various greenhouses, gazebos and other objects are built with their help quickly and efficiently. However, everything is not so simple.

To bend such a pipe, you have to use expensive special equipment, which is not always acceptable for home master. Let's talk about how to bend profile pipe at home.

A profile pipe is considered to have a cross section other than a round one. It can be rectangular, oval, hexagonal or square. The pipe has increased strength, because its edges take on the role of stiffeners.

Profile products cope with significant bending loads, due to which they are good choice for the erection of the metal frame of the buildings of the for various purposes.

The raw material for the production of profile pipes most often becomes high or low alloy steel. Depending on the manufacturing method, electric-welded, cold-rolled and hot-rolled, seamless pipes are distinguished.

Products differ in wall thickness and profile height. Such pipes can be used to make various parts in the form of frames, stairs and railings. Most often, a profile pipe is used in construction for the construction arched structures and as a replacement for iron beams in the construction of frames.

Skills in bending a profile pipe will be useful for home craftsmen who want to independently equip a suburban area:

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The simplest devices for cold bending

Consider how to make two very simple fixtures, which will help to bend the profile pipe.

Profile mandrel

The basis for the adaptation will be a workbench. It is important that not only work zone but also the space around it were free. To secure the mandrel, you will have to make several closely spaced holes in one edge of the workbench tabletop.

Actually the mandrel or template is made of plywood. However, this option is only acceptable if several parts are to be performed.

The simplest mandrel for a pipe is made of thick plywood or board. This template is enough for several bends

If you need to bend a large number of pipes according to this pattern, the mandrel is best made from a steel corner. In some cases, the profile product must be bent at different angles.

For such work, you will need several templates at once, which should be prepared in advance. Before starting work, the mandrel is firmly attached to the base with clamps.

The pipe to be bent is securely fixed to its edge. Then bending is done. The operation is performed smoothly, without sharp jerks. The force applied to the pipe should increase gradually. In the process of bending, the part takes the form of a mandrel. This will require considerable effort.

Advanced bending plate

This is a convenient multifunctional device that allows you to carry out high-quality bending of the profile with your own hands. The device is a solid metal base plate mounted on a pedestal. The latter is fixed to the floor of the workshop with the help of fixing bolts.

Set of steel mandrels for different radii

Plywood disposable blanks

Mandrel for narrow profile pipe

As an option, you can consider a similar device mounted on a workbench. After work bending plate easy to dismantle and put away, or you can use it as a stand for other plumbing operations.

To make such a device, you need a thick metal plate. It is welded on a telescopic stand. For bending stops, two holes are made on the base plate.

Bolts are placed in them. Nozzles of various radii are put on and fixed on them, which allows you to bend the pipes as you need. A pressure plate is cut out of sheet thick steel.

It is desirable to equip the bending plate with a pressure plate made of durable metal. It will allow you to maintain the alignment of the profile part during the bending process.

Its use is mandatory so that the alignment of the bent part is not disturbed, since bending a profile pipe without a pipe bender can accidentally deform it in two different directions. The plate is fixed above the nozzles on stop bolts.

The simplest way to bend a profile pipe:

There are quite a few ways to manually bend profiled pipes. And they all have a common drawback: it takes a very large effort to bend them. A physically unprepared master may not be able to cope with such work. Bending parts using specialized devices is much easier, more accurate and does not require much physical effort.

The problem is that the cost of such equipment is quite high. Therefore, buying a device only in order to perform a one-time job is, of course, unprofitable. The best way- rental of specialized equipment, which will allow for a small fee to obtain profile products bent exactly according to the template.

The question of how to bend a profile pipe at home, almost all summer residents and owners of private houses have to face. Arcs from a profile pipe are used in the construction of greenhouses, gazebos, canopies and arched canopies. Acquiring or making them with your own hands is economically unprofitable. They are needed for mass, not for single production. Consider what methods exist for giving profile pipes a bend of the desired radius.

The essence of this process is that one side of the pipe is stretched, and the inner part is compressed. Pressure is applied to the workpiece, which may be accompanied by heating, to make the metal more pliable.

Do-it-yourself bending of a profile pipe along the radius is associated with such difficulties:

  • displacement of the longitudinal axes and planes of the part, which leads to skew;
  • rupture and the appearance of cracks on the outer part of the workpiece under the influence of the rupture force;
  • uneven compression of the inner part, leading to the effect of corrugations;
  • change in the diameter or shape of the workpiece.

To know how to give steel pipes arch shape, a number of factors must be taken into account.

The influence of the material on the choice of bending method

Profile pipes are made in accordance with the requirements of GOST 54157-2010 and have certain properties.

It is necessary to bend the profile pipes taking into account the following parameters:

  1. Minimum bending radius facing material, which is planned to be laid on the arches. At cellular polycarbonate these figures depend on the thickness and structure.
  2. Profile size and wall thickness. Products with a wall height of up to 10 mm can be bent using muscle strength. Profiles from 20 × 40 mm and more, you need to bend in a complex way, by pressure and heating or on a machine.
  3. Elasticity (plastic moment of resistance). It must be included in preliminary calculations, giving the workpiece a smaller bending radius.

Based on the analysis of these data, a choice is made of the method for performing the task.

Bending methods and bending devices

Using improvised tools and household tools, you can make a bending fixture at no additional cost.

As for professional devices, their cost can be several times higher than the price of the material for the manufacture of arches.

Consider the ways in which you can make bent rectangular arches perfect shape.

Cold

Without heating, cold rolled products are bent if the master's muscular strength is sufficient for this procedure. As a rule, these are square pipes with a section of 10 × 10 mm and rectangular pipes of 10 × 20 mm.

If the walls of the blanks are thick, then the filling of the internal cavity with resistance is not carried out. Consider the main options for creating arches from metal blanks.

Lever with nozzle

First, a pattern is made with a certain length of the semicircle corresponding to given parameters. They make it from chipboard, plywood, drywall or boards.


After that you need:

  • firmly fix the vise on a heavy and stable table. In a vice, a pipe segment with a larger size than that of the workpiece is firmly fixed;
  • perform bending in several stages by inserting a profile hole of a segment clamped in a vice and applying force to it.

A lever of sufficient length is placed on the fragment to be bent to create the necessary pressure to deform the metal. In the course of work, the curvature is controlled by a pattern.

By mandrel

The mandrel is made on a solid base, which is a concrete or asphalt platform, a large workbench. In fact, this is a special template, along the contours of which the profile pipe will bend.


Given the degree of elasticity of the metal, the master needs to give the mandrel a smaller radius.

The procedure is carried out in the following sequence:

  • the part is securely fixed on the base;
  • the end of the workpiece is screwed to one of its edges with wire or clamps;
  • the profile is bent until the desired shape is given to it.

The template can be replaced with reinforcement driven into the ground. As the pipe deforms, it is sequentially welded to the pins. After finishing work, the arch is cut off from the stoppers.

With the use of internal countermeasures (sand, water)

This method is used when the profile parameters are less than: height 10 mm, width 20 mm, wall thickness 1 mm. Pipes filled with a dense substance retain their shape better, even with strong pressure on a small area of ​​\u200b\u200bthe product.


The use of sand and water guarantees a quality result without marriage. And this factor is important, given the cost of rolled steel.

The filler must fill the cavity of the profile pipe throughout the entire volume. It is much easier to achieve this with a liquid. The sand is compacted by vibration and spilled with water. Holes on both sides are welded or tightly plugged wooden stoppers. If heating is used, it is important to leave one of the sides not clogged for the release of gases.

Cutting with a grinder and welding (sector welding)

Cutting with a grinder and welding does not require significant effort. The master needs to be prepared for the fact that this event will take a long time. The advantage of this technology is that there is no possibility of damage to the profile, its shape can be corrected throughout the entire bending process.


The work is carried out in the following sequence:

  1. A scheme is being drawn up. It shows the distance between the cuts and their configuration.
  2. Marking is applied to the profile. Triangular cuts are made along it with a grinder. The incised fragments are removed.
  3. The workpiece is bent. If the metal is elastic and unbends after compression, then the joints are immediately fixed by spot welding.
  4. The gaps remaining after compression are welded or sealed. After the metal has cooled, the seams are ground and painted over.
  5. The edges on the arch are almost invisible. When laying polycarbonate, small differences are compensated by a thick sealant.

Hot

Pre-heating is carried out in cases where the profile pipe has a large cross section or thin walls. That is, it is either impossible to manually bend it, or it is fraught with damage or breakage of the workpiece. Let us dwell on the techniques that are used for thermal bending of rolled steel.

Using a spring and a blowtorch

The spring is needed in order to prevent the profile walls from being forced through during their bending. In addition, the elastic insert will give finished product neat and even shape. It must be strong enough to take on and withstand the pressure exerted on the profile.

The section at one end is rigidly fixed in the ground or in a vice. Before bending the fragment, it is heated until the metal turns red.

You can only cool the bent place with warm engine oil - iron cracks and becomes brittle from water.

The use of a spring and a blowtorch saves the worker from applying excessive force.

hot forming

It is possible to give the desired shape to the profile without preliminary internal filling. When heated, the steel becomes so soft and ductile that it can be bent by hand, without the use of levers and complex fixtures.


For this, a convex stop of a semicircular shape is made. It must be made from a material that is resistant to high temperature. Best for this car drive or fireclay brick covered with clay. With a heated place, the part is applied to the template. After that, it bends in one slow and precise movement. After a few minutes, you can continue the procedure.

Giving profile pipes the shape of an arch is a complex process that requires skills in handling household tools and metal.

In the manufacture of arches, the following rules should be followed:

  • It is easier and more convenient to work with short workpieces. Before bending, it is advisable to cut the parts into segments 1.5-2 meters long. Subsequent welding will not weaken the strength of the finished arch.
  • Heating of the metal should be done slowly to prevent uneven heating and deformation. The resulting scale must be cleaned off immediately, as it causes corrosion.
  • Rolled steel must not be exposed to temperatures above + 800 ºС. This impact leads to the destruction crystal lattice metal. The profile becomes soft or brittle.
  • All bending actions should be performed slowly, gradually increasing the load.

How much does it cost to bend a profile for a greenhouse

The cost of services is determined by the status of the workshop, its geographic location and the equipment used.

The average price for bending profiled steel is (in rubles per linear meter):

  1. 10×10 - 80;
  2. 20×20 - 100;
  3. 25×25 - 110;
  4. 30 × 30 - 120;
  5. 20 × 40 - 125;
  6. 20 × 45 - 130;
  7. 40 × 40 - 140;
  8. 50 × 50 - 150;
  9. 60 × 40 - 160;
  10. 50 × 50 - 180;
  11. 80 × 40 - 240;
  12. 80×80 - 360;
  13. 100x100 - 480.

The cost may differ depending on the supply and demand market.

Special devices for bending

In order to reach High Quality finished product, you can use .

pipe bender

Pipe benders consist of a frame, several rollers, limiters and a drive. The device is controlled manually, by an electric motor and hydraulic cylinders. In private construction, profile pipes with a wall height of up to 20 mm are used. A manual pipe bender handles their bending.

Conductor

This tool is designed for precise manufacturing and connection of profile joints when cutting with a grinder and connecting arches with vertical, transverse and inclined posts.


Thanks to the use of a jig, the most accurate connection of parts at a right angle and a neat seam between them are achieved.

bending plate

This device is a removable structure that is installed on a workbench or on the workshop floor.


For fastening, embedded parts are used or anchor bolts. The curvature of the base plate is adjusted by bolts.

After the bending is completed, the equipment is removed, and the mortgages are closed with plugs.

Making a bending machine with your own hands

About how to independently assemble a manual pipe bender, we already

When performing construction or repair work around the house of various levels, the problem of bending profile pipes regularly arises. This is usually necessary when building greenhouses on suburban area, gate installation, various designs for winter garden, at home, as well as in the arrangement of terraces. The profile pipes themselves have a high strength index, and in order to give them the necessary shape, some effort must be made.

In this article, we will describe how to quickly and conveniently bend a profile pipe on our own at home using special pipe bender equipment or using a conventional angle grinder (grinder) and welding machine. We will tell you all the secrets of proper pipe bending and describe a number of problems that you may encounter in this process. We will also tell you why it is impossible to bend pipes with a square section using special equipment.

Pipe bending technologies: how to bend a pipe correctly?

How to bend a steel or copper pipe correctly? Can this be done without losing the properties of the metal? There are several various technologies, one of the most convenient and fastest is the use of a special machine designed for bending profile pipes. On the professional language it is called a profile bender, but the cost of such a device is quite high, so you need to have many good reasons to purchase it.

In the event that you plan to bend pipes a small number of times, then in specialized stores you can purchase special manual pipe benders with which you can bend pipes various shapes, but this is most optimal for round pipes, because all elements have exactly a semicircular shape. The cost of such equipment is relatively low, usually it is about 3-3.5 thousand rubles.

For bending pipes at home, you can use more simple ways based on the use of a welding machine and an angle grinder. This technology will be described a little later.

Often copper, steel and polymer pipes with a small section width, it can be bent with the help of improvised means and physical effort, however, in this case it is difficult to control the bending radius. This method is best for copper pipes, since ordering its bending in the workshop is not cheap at all.

Features of bending using a pipe bender

The priority of using a special pipe bender in household it is worth considering even during the purchase of products, if you still decide to take such a step. Most often, special equipment is purchased to work with large quantity profile pipes, for example, in the construction of houses and the construction of fences. In this case, you must immediately consider what kind of pipes this device can bend, because often inexpensive models can only work with round profile pipes.

Bend round or square pipe using a pipe bender is quite simple on your own. In this process, it is necessary to take into account only the wall thickness, the diameter of the pipe section, the radius of the future bend and the material of manufacture. During operation, the bend is carried out in accordance with the technical tolerances of the pipe wall thickness and section size, while during operation it is necessary to ensure that kinks do not appear on the inside of the product, as well as flattening cross section profile.

When working with square pipes, when it is necessary to make a bend of a small radius, the force must be applied closer to the ends of the product, because in the central part the pipe will be very difficult to bend.

How to bend a profile pipe?

To bend the pipe not on your own, but with the use of special equipment, you need to use devices whose operation is based on cold stretching technology. In this case, the stretching of the profile leads to the fact that the neutral axis of the entire structure is shifted towards the required bend, so the probability of obtaining a corrugated part is almost zero. The pipe remains smooth throughout its entire length, kinks and other defects simply cannot appear on its surface, strength and other important characteristics remain the same.

The pipe bender grips the product very tightly, bends and stretches at the same time with an absolutely verified movement of the bending template.

With the help of special equipment, the profile product can be qualitatively bent in the right direction and at the required angle, while maintaining all the characteristics of the pipe and preventing the walls from losing stability. The secret of this technology is extremely simple, the bend is made in the presence of hydrostatic pressure inside. Special plugs are installed at the ends of the profile pipe, and liquid is supplied into the system. Then the bending template is brought to the center of the product, and the required shape is achieved with the help of the applied force.

How to bend a profile pipe without a pipe bender

You can bend the pipe at home quite quickly and simply, without resorting to the use of a pipe bender. For this, it is not necessary to use expensive and bulky tools and machines, but the bending quality is quite good, and the profile remains attractive. appearance without losing their properties. You can do this yourself with the help of a welding machine and a grinder. Work is carried out according to the following instructions:

  1. Initially, you need to correctly calculate the radius of curvature, optimally prepare a preliminary scheme, which will greatly simplify the work process, make it high-quality and fast.
  2. On the surface of the profile product, along the length of the section to be bent, it is necessary to make uniform cross cuts on three sides. This is done independently using an angle grinder.
  3. Next, you need to make some physical effort and bend the pipe in the required direction. Many professionals recommend that it be carefully fixed so that the bend is neat and the pipe is located in the same plane. This can be done, for example, in a vice.
  4. Using the prepared welding equipment, all cuts are welded in accordance with safety regulations.
  5. Now the welding spots need to be sanded and carefully processed.

With this technology, you can achieve the most accurate results without the use of complex and specialized equipment, which is a pipe bender.

Pipe bending using internal force

Profile pipes of various sections can be bent using means that have an internal effect on the structure. To do this, you first need to make a spring with a square section of steel wire, which has a thickness of one to four millimeters. The value must be selected in accordance with the thickness of the profile.

The prepared spring must be carefully wound, while the value of each section of the spring must be 1.5-2 mm less than the inner diameter of the section of the profile product, in this case the spring must be free inside the product to be bent.

Now, with a blowtorch, the area intended for bending is heated. This must be done very carefully, using pliers and protective gloves. After heating on a specially installed blank with a radius equal to the radius of the profile, the pipe is bent.

If the pipe needs to be bent into winter period or in a cold room, a slightly different technology is used. To do this, the pipe is initially filled with water, and plugs are installed at its ends. After the profile is installed in the cold, until the water inside the product completely turns into ice. Now the pipe can be bent independently on a blank without any serious physical effort.

Dural and brass pipes it is possible to bend according to the same principle, if it is possible, then the profile product will retain its properties and integrity.

How to bend a profile pipe at home

Any of the above methods can be used to create a pipe bend. All technologies are different necessary equipment, the time of the process and the necessary physical effort. Of course, it is best to carry out this process using special equipment, but if this is not possible, you can use classical methods bending profile pipes. A manual pipe bender can greatly simplify and speed up this process; you can find it at any hardware store at a fairly affordable price. However, if you already have a welding machine and an angle grinder, you can use them. The main thing - do not forget about safety, always wear a protective mask and special gloves, only then the process of pipe bending will not be difficult and will not lead to possible problems.

Self-arrangement of a private plot may sometimes require bending a profile pipe for the construction of a greenhouse or gazebo. Some people think that it is impossible to do this without a special device, but there are several methods that can quite cope with the task.

The nuances of pipe bending

The term "profile pipe" means hollow products of square, oval and rectangular shape. Their round counterparts are also included in this definition, but they are used less frequently (more on types of pipes -). To give the profile pipe curved configurations and at the same time preserve it specifications difficult, but doable if you do it on special device hot or cold method.

The profile in this process is affected by two forces: inside- stretching, and from the inside - compression. To balance these efforts, apply several nuances:

  • When bending the pipe, you need to monitor its outer wall. When heated, it expands very much and may not withstand the load, which leads to its crack.
  • It is necessary to bend slowly, then the risk of a fracture will decrease.
  • After completing the process, check the edges of the pipe, and if they lie in different planes, repeat the bending process to align them.
  • When choosing bending machine you need to focus on the thickness of the walls of the pipe and its cross section.
  • The inner wall of the pipe after the process may resemble an accordion, this is normal, as there is a reduction.
  • It is necessary to start bending the pipe from the end, and not from the middle, otherwise it will be more difficult to change the profile.

Before bending, you need to practice on unnecessary pipes to prevent marriage.

How to bend profile pipes by welding?

You can bend the profile pipe in a semicircle using a grinder. It is used to make several cuts along the entire profile of the pipe. This way is as follows:
  • Fix the pipe in a clamping vise.
  • Make thin cuts in the places of the future pipe deflection.
  • Clean the cuts from chip dust, and carefully bend the profile along them.
  • Weld the holes formed during bending using a welding machine. With a small pipe diameter, a soldering iron can be used for this purpose.
  • Clean and grind the formed profile bending points and process them protective composition, it will protect them from corrosion.


With it, you can get a pipe of the desired radius. When choosing this method, you do not need to use a vice, the workflow is as follows:
  • Fix one end of the pipe in the ground and close it with any plug.
  • Fill the profile pipe with sand.
  • Heat up the blowtorch. Move it near the place of the intended fold.
  • Bend the pipe, but this must be done quickly so that the metal does not have time to cool, otherwise you will not bend it.


This "hot" method allows the use of water instead of sand.

Springy pipe bending method

This method preserves the integrity of the walls of the profile pipe. Before applying the method, preparatory work is carried out:
  • Spring preparation . It is made from steel wire. The diameter of the latter depends on the thickness of the pipe walls. For winding the spring, a square section blank is used, a wire is laid around it. The outer diameter of the spring must be smaller than the inner dimension of the pipe.
  • Template preparation . Pipe bending will be carried out according to a pre-made reference blank.
The deformation of the profile pipe is carried out by laying a spring in it, which will protect the material from fracture. The part is warming up blowtorch, and in the hot state is deformed to the desired diameter.

Bending profile pipes on a manual pipe bender (video)

The video below shows how to bend profile pipes with a cross section of 25 × 25 mm and 20 × 40 mm in order to make a frame for a greenhouse from them.


Pipes come with a wall thickness of 2 mm. Homemade pipe bender is a welded structure. It consists of the base of two small rollers sandwiched between the uprights. In the middle of the structure rises a carriage made of corners. A square platform is welded on their upper part, into which a screw with a nut from a jack is inserted, and a removable handle is inserted on it. A handle is also attached to the first roller, with the help of which the pipe is fed to the machine. A third roller is provided inside the carriage, the deflection arrow will pass through its center.

Pipe bending process:

  • Put the pipe on the two lower rollers and stretch it to the required distance by scrolling the first roller.
  • Lower the middle roller by turning the knob.
  • Pass the entire pipe to the marked mark in one direction. It will become slightly arched after rolling.
  • Perform the previous action only in the other direction, lowering the middle roller below. The pipe remains in the device and must be returned to its original position by turning the handle on the lower roller in the opposite direction.
  • Run the pipe a third time through the pipe bender. The arc of its bend will sharply increase.
  • Repeat all steps for the 4th time.
The result will be a rather impressive radius of pipe deflection, so you can prepare required amount profiles.

In the next video, you can clearly see how you can make and use a pipe bender with your own hands:


The described methods using sand, welding and springs are used for special cases in the household. If you need to bend pipes often or you plan to build a large building with them, then it is better to purchase a profile bender or make it yourself. When using a pipe bender, the process is faster, the profile is correct without unnecessary kinks.

Bending a profile pipe at home is usually required when a greenhouse is being run arch type. The need for this work is created at the moment when the main frame is installed. There are many ways to bend structures with your own hands. Let's consider the main ones.

How to bend a square type pipe for polycarbonate structures

When installing polycarbonate greenhouses, a square-type design is usually used. In order to bend such a pipe at home, you will need the following tools:

  • Special bending machine;
  • The structures themselves for making arcs;
  • Ruler;
  • Bulgarian;
  • Welding unit.

To get started, you need to divide the structure into equal parts. Then sawing is carried out by means of a grinder. The undercut areas need to be processed using a spot welding machine. You can bend the profile pipe on a special machine. Is not simple work, because you need to scroll the unit manually.

If you do not have a machine, you can do the work yourself. To do this, the two structures are fastened parallel to each other. A drawing with the desired bend is made on the ground. Then, in accordance with it, it is required to bend the first structure. According to it, similar work is carried out with the second profile pipe.

How to bend a pipe with a pipe bender

1 The type of machine is designed for radius bending of profile pipes.

Characteristics of a standard machine:

The maximum section of the pipe is 40x40x2, 50x25x2 mm.

Minimum circle diameters:

  • 30x30x2 - 650 mm,
  • 40x20x2 - 650 mm,
  • 40x40x2 - 1800 mm,
  • 50x25x2 - 800 mm.

Drive type manual.

Hardened rollers - all 3 pcs.

Price: 25000 rubles.

2 The type of machine is designed for radius bending of profile pipes, round pipe and stripes.

Specifications universal machine :

The maximum section of the pipe is 40x40x2, 50x25x2 mm.

The maximum section of a round pipe is 32x2.8 mm.

Strip 40x4 mm.

Minimum circle diameters of profile pipes:

  • 20x20x2, 25x25x2, 15x15x1.5 -560 mm
  • 30x30x2 - 650 mm,
  • 40x20x2 - 650 mm,
  • 40x40x2 - 1800 mm,
  • 50x25x2 - 800 mm.

The maximum arc diameter is unlimited.

Drive type manual.

Hardened rollers - all 3 pcs.

Price: 30,000 rubles.

At the request of the Customer, for an additional fee, the machine is equipped with a dial indicator for the manufacture of more accurate all subsequent blanks.

For an additional fee, the machine can be equipped with an electric drive 220-380V

Warranty 2 years

Contacts:

Tel: 8-919-831-25-14

Saratov region Engels

Delivery across the Russian Federation.

The profile structure can be bent by preheating the bend gas burner or blowtorch. but this method has its drawbacks: the complexity of the work, the poor appearance of the fold.

Where it makes more sense to work with profile design for the greenhouse by means of a pipe bender. Bending occurs due to the pressure of the roller. In this case, you can control the angle of the bend. The pipe bender can be done by hand. This will require:

  • Three rollers;
  • Metal table;
  • Bracket;
  • concrete mortar;
  • Welding machine;
  • Steel structures with dimensions from 70 to 150 mm;
  • lead screw;
  • Channel.

The structure is made of two steel pipes. They are fixed in the slab with a mortar, and then attached, using a welding machine, to the channel. A distance of 600 mm must be observed between the structures.

The rollers are mounted on axles in one line. There must be at least 50 cm between them. The third roller is installed in the middle. It is mounted above two already installed rollers by 100 mm. Such a roller is lifted by a jack and is responsible for the angle of the bend being performed.

When performing work, the roller is attached to a metal table. A bracket with a clamping axle is fixed to the axis. A roller is mounted on it, similar to the design profile. The design itself, during operation, passes through the rollers. At the same time, she holds her hands. At the end of the work, it is required to check the angle of the profile pipe for the greenhouse by attaching it to the template.

How to bend a pipe with a hot method

You can give the design for the greenhouse the desired angle at home by paying attention to hot method fold. It has its own advantages. In particular, the fold is smooth and smooth. To perform the work, it is necessary to place sand in the structure, then close its ends with wooden plugs. After that, it is required to drill holes in the plugs so that the resulting air comes out when heated. Then, on the structure for the greenhouse, a mark is made where it is optimal to bend. Then this place is heated. Following this, the heated structure is placed in a pipe bender and bent to the desired radius.

If you decide to bend the structure for the greenhouse at home, be sure to watch the video and photos that show correct execution such work. see all necessary material you can on our website.