Machine for bending profile pipes: how to build a pipe bending machine with your own hands. How to make a pipe bender with your own hands for a profile pipe. Drawing of a pipe bender for a profile pipe with your own hands.

There are many models of industrial pipe benders on the construction market, but it hardly makes sense to buy a professional tool to bend two or three pipes. But making this simple tool with your own hands and using it in the household is within the capabilities of every person who has certain technical skills.

Application of pipe benders

Pipes were and are one of the most popular building materials, used both in households and in industry and construction. In addition to being used in the installation of water and gas pipelines, pipes are also used for the manufacture of fences, greenhouse structures, gazebos, canopies, garden furniture, etc. Thus, having a pipe bender in the household will never be superfluous.

Often, to produce various structures from pipes, it is necessary to bend profile pipes along a radius. For these purposes, a pipe bender is used, which allows bending pipes to an angle of 180 degrees. Pipe benders allow you to easily and accurately change the configuration of pipes made of various materials - aluminum, metal-plastic, stainless steel. The bend is made according to the required shape and dimensions.

Types and models of pipe benders

The industry produces various types of professional pipe benders. To bend pipes of small diameter, hand-powered tools are usually used, but pipes with a diameter of up to three inches are bent using pipe benders equipped with a hydraulic drive.

This type of tool is designed for large-scale work. Industrial pipe benders can be made in both stationary and mobile versions. The most convenient tool is one that connects to the mains.

Electromechanical pipe benders provide the most accurate bending angle and radius. In this case, changing the shape of the pipes does not entail any deformation of the internal profile.

Pipe benders are also divided according to the bending method:

• in crossbow pipe benders, a shape of a certain diameter is used as a bending element;
• manual spring tool is designed for bending metal-plastic pipes using special springs;
• in segmental pipe benders, bending is carried out by stretching the pipe around the segment; mandrel tools bend thin-walled pipes to a small radius using steel, plastic and brass mandrels.

When bending a pipe, one should take into account the permissible bending radii for pipes of different diameters and different wall thickness parameters. Permissible bending radii for products of various characteristics are presented in special reference books. If the radius is violated, the quality of the bend can be significantly reduced.

Let's start production

Despite the apparent simplicity of the process, bending pipes requires a rather serious approach, since with an incorrectly selected tool, various defects and deformations are possible, leading to a decrease in the throughput of pipes and a decrease in their strength characteristics.

Therefore, the selection of tools is carried out taking into account the compatibility of the characteristics of the pipe and the operating principle of the tool.

Pipes made of different materials, having different diameters and different wall thicknesses have a certain minimum bending radius. The following table is used to determine it:

Of course, it is possible to bend pipes with a smaller radius, but it should be taken into account that this will reduce the quality of their bending.

Now let's talk about making pipe benders ourselves and consider several designs of such tools.

The easiest way to bend a pipe is to use a special template. It should be noted that this method allows you to bend not only aluminum but also steel pipes.

To make a template, we will need wooden boards slightly thicker than the diameter of the pipe being bent. To ensure that the pipe does not slip out of the template during operation, the boards are cut with a certain slope.

The boards fastened together must be fixed on a table or other convenient base. In addition to the template, you should also attach a stop here at a certain distance to hold the pipe being bent. The simplest model of a pipe bender is ready.

The end of the bendable pipe is inserted into the space between the fixed template and the stop. Taking the pipe by the opposite end, you need to bend the product with smooth movements. To facilitate the process, you can use a lever by inserting a strong reinforcing rod into the pipe or put a larger diameter pipe on the product to be bent.

Trying to bend the pipe in the center of the template should be avoided, as this not only requires significant force, but may also cause the pipe to break.

A similar template can also be made from metal hooks attached to a sheet of plywood along the corresponding bend line. The advantage of this design is the ability to adjust the bending line by rearranging the hooks.

The simplest pipe benders allow you to bend not only thin-walled flexible pipes, but also thick-walled products. To do this, use a hand winch.

Using this design, even powerful profile pipes can be bent. However, for these purposes, when cutting out a wooden template, you should not make a bevel, and the pipe must be secured with several stops at once.

In various workshops you can often find pipe benders with a similar design:

You can make it yourself. In the process of manufacturing such a pipe bender, the most problematic is the selection or production of the necessary templates and rollers, since the quality of the bend depends on the girth of the pipe.

If the tool is designed to work with flexible pipes, steel rollers and templates can be replaced with similar parts made from hardwood.

The rollers can be turned on a lathe. Also, the roller can be cut with a jigsaw. To do this, circles of different diameters are cut out of hard plywood with an inclination in the required direction, which are then fastened into a single piece. Finally, the roller should be sanded. To give greater strength to the product, it should be reinforced with metal plates.

To obtain a large bending radius, it is optimal to use rolling pipe benders. These tools, like those described above, are not distinguished by their design complexity.
In general, the level of complexity of the design of rolling pipe benders largely depends on the material of the pipes being bent.

If the tool is needed to work with flexible pipes, its working surfaces can be made of wood. Since wooden parts are quite simple to manufacture and do not require large expenses, they can be easily replaced when worn out.

If wooden parts prove to be ineffective, they can be replaced with metal ones. Let's look at several designs of homemade rolling pipe benders.

As you can see, this tool is made primarily of wooden parts. The rollers in this model are made of polyurethane, however, they can also be made of wood. T

Bearings can also be used as rollers. However, in this case, you will need to jam the pressure bearing so that it does not rotate.

Its technical characteristics depend on the distance between the rollers of a pipe bender. The greater the distance between the rollers, the less effort will be required to bend and run the pipe. However, in this case, a minimum bending radius is ensured, and a significant section of the pipe is not subject to bending at all.

In order to produce a more versatile tool, the possibility of installing side rollers in different positions should be provided at the design stage.
It is necessary to fasten steel clamps on the sides to hold the pipe in a certain position perpendicular to the axes of the rollers. Otherwise, the pipe will begin to bend in a spiral.

The pressure roller of the pipe bender should be tightened from below using a metal strip with a thread of the required diameter cut in the center.

By smoothly tightening the pressure roller of the device, the bent pipe is rolled through the pipe bender. When rolling, for every half turn of the fixing metal strip, a pipe is run through.

When bending a small radius, you will need to make from 50 to 100 runs. To ensure that the bending circle does not undergo deformation, it is necessary to roll the pipe at the same speed. If there is a weld on the surface of the pipe, it is necessary to ensure that the seam is always on one side during rolling.

Homemade pipe bender for profile pipes

Spring is coming, rooks are coming, and the greenhouse has been unfinished for many years now). From the very beginning I decided to make a normal greenhouse from a normal profile. To do this you need to bend the frame. You can, of course, look for where it is bent or even buy a ready-made one, but we are not looking for easy ways. We will bend it ourselves, and for this we need to make a pipe bender. It will come in handy more than once on the farm...

So, having rummaged through the search for drawings or diagrams for making a pipe bender with my own hands, I collected a small collection of photos. So let's start this manufacturing process with drawings and photographs.

The pipe bender itself:

A little manufacturing process:

Well, when we already have an idea of ​​the design, the drawings themselves:

The most important thing is to grind the rollers and races for the bearings. We select the shaft sizes based on our bearings and sprockets. You can avoid sprockets altogether by making the drive from a single roller, but according to reviews, this can cause the structure to slip.

You can also replace the clamping screw with a jack. In any case, the main shafts.

Well, let's start selecting materials and adjusting drawings? In the meantime, you can look at an even more advanced option. The shafts are machined to fit a couple of diameters of round pipes and a regular profile pipe.

To begin with, I bought bearings. I didn’t buy simple ones, but bought self-centering ones with supports that cost a ruble more. Since a “premium class” profile bender will be made, the gears and chain for it must be premium). In my case, Mercedes ones.

The turner's task was formulated on a piece of wallpaper and he successfully completed the task.

Well, the first fitting

The gears will be secured through a key. You also need to drill holes in the rings and cut threads to secure them.

I drill holes and make grooves for the key to attach the gear.

I drill holes in the restrictive rings and cut threads for clamping bolts. I sawed off a piece of channel to mount the pressure shaft. One shelf was cut off so as not to interfere with the installation of the jack. Holes are drilled and threaded for mounting the bearings.

Now you can proceed to welding work. I lay out the parts on the “welding table”. I assemble the structure and weld the legs.

We fasten the pressure shaft. We touch it and weld the nuts for the springs.

I hang the platform on springs. By the way, the upper stop is bolted on, just in case you suddenly have to remove the pressure shaft.

I'm making a chain tensioner. Use a magnetic corner as a holder. Great stuff!

I screw the sprockets on, not forgetting to insert the dowels. The dowels were made by cutting with an engraver.
I tighten the tensioner.

The next part is the handle for rotation. Don’t forget to make a handle with a rotating tube so that you don’t rub calluses. And we install the jack, weld a couple of bolts and fix it on the site.

Result

It's time for bench testing! What can I say about the quality of the bend... the bend itself turned out just wonderful. There is a slight crease at the extreme points. There is no way without it. But thanks to the collar on the central shaft, there is no jam along the arc.

In principle, I am more than satisfied with the result. The machine turned out just right. It turns easily, bends well. All that's left is to give it a little presentation... paint is used.

From this article you will learn how to assemble a pipe bending machine yourself. Also in the article you will find information on how to make a pipe bender with your own hands, videos and drawings with comments on the assembly and use of the machine. We will talk about the nuances of installation and share secrets.

Pipe bending machines are necessary not only for professional work, but also for home work. Bends of pipes along a large radius are especially relevant - they are used to make the ribs of the frames of greenhouses, canopies, and hotbeds. We will tell you how to make simple pipe bending machines in this article.

What is the difference between bending round and profile pipes

Straight and round pipes initially have different purposes - round for water supply (sometimes poles), straight for the frame. Therefore, the requirements for tightness and safety of the wall are different - a round pipe must retain its properties as much as possible. In this regard, thrust wheels and mandrels always have a groove of a certain diameter. Wheels and headstocks for profile pipes have either a rectangular groove or a “tooth” along the entire circumference. It crushes the pipe wall inward and thereby maintains the cross-sectional dimensions. This is relevant because the straight profile is bent under a small radius, mainly in order to obtain decorative elements of the so-called “cold forging”.

DIY profile pipe bender on rollers

A home-made version of this machine is schematically taken from factory models. The design is simplified as much as possible and is within the power of a novice master. According to the principle of operation, roller machines are divided into two main types - with press rollers and with a lifting platform (platforms). In this case, the main structure is practically the same, the only difference is which element will determine the radius of the arch. We will look at a simple design with a lifting platform.

1, 3 - channel; 2 - racks; 4 - rollers; 5 - loop; 6 - jack

To create the machine, you will need three pairs of bearings with a seat diameter of at least 30 mm - this will be the basis of the rollers. Also, the shafts themselves should be selected for them so that they fit into the bearings (scrap, wheel, factory shafts, automotive parts). The rest of the material - channel, 10 mm steel plate, angle - can be varied depending on available supplies.

Completing of the work:

1. Take a reliable base, for example, a thick-walled channel 100-150 mm long 800 mm.
2. From the same channel you need to make platforms - two sections of 300 mm each.
3. 500 mm from one of the sides we vertically weld a central post 350 mm high from a square pipe or a paired channel.
4. From above, strictly horizontally, we weld a fixed platform and a rear pillar to it.
5. We increase the walls from the profile pipe to a height of 120 mm. The height must be maintained in such a way that the size in the drawing is no less than the maximum thickness of the pipe that is supposed to be bent.
6. To create a moving platform you need to make a loop. We select a pipe and a “finger” so that it fits into it without play. We cut the pipe to the width of the channel and divide it into three parts. We weld the two outer ones to the frame, and the third (middle) to a 300 mm section of channel. We mount the connection “on the finger”.
7. We weld bearings to both parts of the platform 50 mm from the edge on both sides, as well as on the extended walls. Reinforce with corners.

Attention! Make sure the bearings are aligned - misalignment will not allow you to install the shaft.

1. We install the rollers in the bearings. We mount a removable crank on the middle roller, for example, a bicycle pedal.
2. At the end of the moving platform, you need to install a regulating mechanism. Ideally, a hydraulic jack, but you can get by with a threaded one (rod from the machine, leg from the scaffolding). The lift is also secured to the base with bolts.
3. If desired, legs can be welded to the base for mounting on bolts.

Home pipe bender, video

Hydraulic profile pipe bender for small radii

The three-point machine differs from other types of pipe benders not so much in the drive (hydraulics), but in the way the force is applied. The principle of operation of this device is extremely simple - a section of pipe, fixed with a stop at two points, is pressed in the middle (at the third point) by a radial mandrel with a groove, gradually taking its shape.

This pipe bender is convenient because it can be mounted on a movable platform with wheels for transportation. The platform will be needed in any case, since the force directed to the mandrel will need to be compensated by the stop. Pressure of this force can be applied using a mechanical (threaded) or hydraulic jack.

To make a pipe bender you will need the following materials:

1. Steel plates 10 mm with dimensions 600x150 mm - 2 pcs., 300x80 - 1 pc.
2. Strip or cut from a plate 6-10 mm long 450 mm - 4 pcs.
3. Bolts with nuts Ø 10 mm and 20 mm.
4. Tension springs 200 mm.

Tool:

1. Welding and plumbing - a powerful grinder, welding machine, drill from 850 W (machine).
2. Measuring and marking - tape measure, squares, marker, center punch.
3. Consumables: metal cutting and grinding discs, metal drills 6, 10 and 16 mm.

The machine will consist of a spatially rigid frame and a removable car jack. The main advantage of the collapsible machine is the ability to use the jack separately - there is no need to purchase it specifically for the pipe bender. In principle, the power drive can be a diesel internal combustion engine. Its main task is to produce sufficient force to overcome the resistance of the pipe.

Frame making

The frame consists of two mirror elements - frame walls - and a heel on which the jack will be installed. Structural elements are arranged according to the drawing.

1 - bolts; 2 - jack; 3 - mandrel

The work plate is marked from the vertical axis (if the frame is vertical). The first lower holes are located 40 mm from the edge and 75 mm from the axis. The axes of the outer holes are 25 mm from the outer edge. Having marked the first and outer holes of the wing in this way, you can construct an axis of intermediate holes, then divide it into equal segments. The intersections of the marks and the inclined axis will be the axes of the holes.

It is better to drill holes Ø 22 mm in several approaches, gradually increasing the diameter (for example, Ø 6, Ø 10, Ø 18, Ø 22). This is especially true if you do not have a drilling machine at your disposal, but only a drill.

Attention! Remember that the larger the diameter, the lower the drill rotation speed and the stronger the pressure.

The mirror plate is made in a similar way. The lower thrust plate should be marked evenly along the axes and the locations of the mounting holes for the jack should be identified. The heel of the jack always has standard mounting holes.

The height of the structure is determined by the dimensions of the existing jack and the distance from the bottom of the mandrel groove to the contact surface of the thrust roller (headstock) strictly vertically (dimension a in the drawing). Distance a should be approximately 20 mm with the jack rod fully retracted (no load). This is necessary to install a pipe of minimum diameter (15-16 mm).

Free corners (shaded in yellow) can be cut off. All edges and ends should be sanded with a grinder, preferably then passed with a “petal” disc.

Machine assembly

The distance between the mirror plates should be several millimeters greater than the maximum diameter of the pipe to be bent. For a machine of this type, the optimal maximum is 50 mm. Total between the plates is 53-55 mm. The thrust rollers must be the exact size (height of the cylinder) and should be installed first before welding. Having determined the location of the steel strips on the heel, we weld the structure together.

Then, in the lower third, we determine the optimal position of the intermediate shelf and attach a return spring to it. The fastening of the spring to the jack rod is selected individually, based on the design of the jack and available means.

Special elements

There is one nuance in a three-point pipe bender - one part cannot be made at home and you will have to turn to a turner or buy it. This is a mandrel. Manufacturing one mandrel costs from 10 to 25 USD. e. depending on the size and complexity. The price of mandrels in the store is from 20 USD. e.

The thrust rollers are also worthy of special mention. They can be a powerful steel bushing for a 20 mm axle (bolt). Along the outer plane, you can weld homemade mandrels for the main diameters - 25, 32, 38 and 50 mm or profiles. A mandrel for the thrust roller can be made by cutting it out of a larger diameter pipe and straightening it with a hammer.

Simplified machine options

For a large volume of work with thin (16-25 mm) pipes, as well as thin-walled ones (copper, aluminum, stainless steel), you can assemble a simple version of the described machine from literally several strips of metal. Such a machine will be many times lighter, but the range of workpiece diameters is limited. The main difference is that the holes are located in a row perpendicular to the jack rod.

If a hydraulic jack is not available, you can replace it with a threaded one, mounting it in place in the thrust heel of the frame. To do this, you need to burn a hole in it and weld a nut under the threaded rod, similar to how a pipe bender is made, the video of which is located below.

Manual three-point pipe bender with threaded jack on video

The convenience of the design lies in the fact that it can be completely modified while maintaining the basic principle of three contact points. As a result, you can get the same pipe bender, but from different materials. In a stationary version it may look like this:

Watch the video for vertical three-point pipe bender

The pinnacle of convenience and technology, without a doubt, will be a hydraulic jack with electric drive. This is the “aerobatics” of a home craftsman, but it is a completely possible option with developed skills and access to a turning shop. Such models are on sale.

In order to assemble a pipe bender with your own hands, it is not so much the drawings that are important, but the availability of tools and available materials - metal, wheels, bearings, etc. Using our advice and your own skills, this is quite within the capabilities of a home craftsman.

When performing various works with pipes, it is often necessary to bend them in a certain shape to solve certain problems. This is done using a specialized mechanical unit - a pipe bender. Next, we will look at how to make a manual pipe bender for a round profile pipe with your own hands; photos, videos and drawings will simplify the task and help you avoid mistakes.

One type of simple pipe bender

Of course, you can always buy an industrial version. But such equipment is quite difficult to use, and in terms of cost it cannot be called the most affordable. Therefore, as a rule, it is much more expedient to make a manual pipe bender for a profile pipe with your own hands; drawings and dimensions are presented below, so you should not have any difficulties. Various available tools will be useful for production. Such a tool is quite economical in terms of production and very functional.

So, we make the simplest pipe bender for a profile pipe with our own hands.

As a rule, in domestic or garage conditions, front-configuration equipment is made, structurally consisting of the following components:

• 3 steel rollers;
• drive chains;
• rotational axes;
• the mechanism that activates the components of the finished system;
• steel profiles required for the construction of the main structural parts.

Before you start making a pipe bender with your own hands for a profile pipe, study photos, videos, diagrams and drawings. You should be extremely careful when selecting and working (and especially their modification or adaptation) with drawings, since it is extremely important to achieve high accuracy and correctness of the design from an engineering point of view. You can use drawings from different models of pipe benders. But it’s better to take a simpler one, the optimal solution is a front-type machine.

Diagram of a simple pipe bender

Often, pipe benders are made with their own hands using wooden or polyurethane rollers. This decision should be approached carefully, since these materials are not always able to withstand the loads you need. It is necessary to build on the strength properties of corrugated pipes.

To build a pipe bender for a profile at home with your own hands, you need drawings of a model that suits you. Below is one of the varieties of this drawing, which you can use to produce this type of equipment:

Drawing of one of the bending machine models

To understand how to properly make a pipe bender with your own hands, watch the video, drawings and description of the operating technology. It is very important to understand the technological side of the process. Typically, such equipment operates on the principle of rolling or rolling, thereby minimizing the likelihood of fracture and damage to the pipe.

The pipe is placed between the installation shafts, after which the handle is turned. The technology is extremely simple, but it makes it possible to bend products according to clearly defined parameters and, as a result, obtain the ideal part for solving the task.

Bending system based on a jack

Everything you need to build a pipe bender for a profile pipe with your own hands in a garage using available funds - dimensions, drawings and photos can be downloaded in this material. We also recommend that you watch a video on YouTube about a do-it-yourself pipe bender; this will allow you to clearly see the entire manufacturing process and evaluate the possible difficulties in a particular case.

To create this tool you will need the following components:

• simple jack;
• profiles and a shelf made of durable steel (the frame will be constructed from them);
• very strong springs;
• 3 shafts;
• drive chain;
• other components (bolts and other small parts).

Variation of profile bending on a jack

We make a pipe bender for a professional pipe with our own hands (photos, drawings, pictures)

It is quite simple to build this kind of mechanical system, but it is extremely important to adhere to a clear sequence of actions and accuracy. Everything must strictly comply with the drawings, otherwise the tool will bend the profile incorrectly. To build a pipe bender for a profile pipe with your own hands, you need pictures and drawings, which you can download for free in this material.

The entire production process is divided into several key stages:

1. Preparing a reliable frame. Bolts and welding should be used to connect components.
2. Installation of the rotation axis and rollers. One shaft is installed below the other two. The distance between the axes of the shafts is determined by the bending angle of the pipe. At this stage, it is important to install the elements strictly according to the drawing.
3. The mechanical part is driven by a chain-type transmission. Its design should have 3 gears. It is not necessary to use a new chain; you can take an old one from any equipment.
4. A handle is installed on one of the shafts, making it quite easy to rotate it with light movements without much effort. The handle is one of the key components of the mechanism for generating the required torque.

How to make a horizontal pipe bender for a profile pipe with your own hands - video and instructions

There is nothing complicated in the procedure for constructing such equipment; the main thing is to follow simple rules and drawings.

The manufacturing process involves performing the following sequence of actions:

1. Install the rings, gears and bearings onto the pressure shaft. Connections are made using a keyway method. Initially, it is necessary to draw all the named elements, then turn them on a lathe. The design will have 3 shafts (2 on the sides and 1 suspended on a spring).
2. Make holes in the rings to create grooves and threads.
3. Make a shelf (for the production of this part a channel is used, preferably strong and massive). In the latter, also make holes and cut threads to make it possible to install the pressure shaft.
4. Assemble components into a single system. To connect, use bolts and a welding machine. First, assemble the frame, which also serves as the legs of the unit.
5. Hang the shelf with the pressure shaft fixed on it. At this point you will need good springs. Install the support shafts on the sides. A handle should be installed on one of the latter.
6. At the final stage, the jack is installed on the equipment.

For a better understanding of the process, watch how a homemade pipe bender is made from a jack for a profile pipe with your own hands - video on YouTube:

From the above we conclude that making a rolling pipe bender with your own hands from scrap materials is quite simple.

But the manufacturing process is characterized by certain subtleties that should be taken into account:

• the pressure shaft attached by means of keys must also be screwed to the shelf;
• in the process of fixing the pressure shaft, perform the actions in the following sequence: before mounting the shaft to the shelf, it is necessary to weld nuts to it, to which the springs will cling; upon completion of installation, you need to turn the shelf over and hang it using springs of suitable strength;
• A magnetic corner that functions as a holder is perfect for tensioning the chain;
• the stars are twisted using dowels (to make the latter, use a Grover);
• provide a scrolling tube on the drive handle, this will make working much more convenient and easier;
• The installation of the jack must be carried out on a suspended platform (to make all connections, we again use ordinary bolts or a welding machine where necessary).

Making a hydraulic pipe bender for a profile pipe with your own hands (drawings and video)

This page contains all the required information, after studying which you can build a simple pipe bender with a jack with your own hands (drawings, photos, videos and instructions). Many craftsmen, especially at the professional level, build a unit equipped with a hydraulic drive, as this increases functionality. But, producing such equipment is somewhat more difficult in comparison with the option discussed above. This is a rather labor-intensive process. Therefore, we recommend that you watch a video that demonstrates in detail the manufacturing process of this device.

How to assemble a universal pipe bender with your own hands - watch the video:

Based on the design and drawing of this unit, we highlight the components included in its design:

• hydraulic jack (must be designed for loads weighing over 5 tons);
• shoe;
• 2-3 videos;
• durable steel channel;
• thick steel plates and other elements.

To achieve the required bending parameters of the product on such a homemade machine, it should be placed in the shoe, secured on both sides. Then a jack is used, the lifting rod of which exerts pressure on the shaft. The latter, in turn, directly influences the fixed product, gradually performing the required bending. Once the pipe has been bent to the predetermined specifications, it can be dismantled. To do this, it is enough to turn the jacking mechanism back a little to relax the entire system.

Painted pipe bending machine

Shafts for the mechanism

Bearings with gears

Profile bending frame

Press roller

Movable platform of the clamp shaft

Shaft fixation

Drive chain with tensioner

Assembled machine

How to make a simple mini pipe bender for fittings at home with your own hands - step-by-step instructions:

1. Based on photographs or drawings, make a structure suitable for fixing the shoe, shafts and frame of the future system.
2. Fix the steel plate on the bottom platform where the jack will be mounted. Secure everything with bolts and install the drive handle.
3. It is extremely important to select the appropriate rollers for the pipe. It is necessary to ensure a tight grip of the product. If you can’t find ready-made ones, you can make homemade ones. The shoe is installed under the rollers. The location of the latter relative to each other is established based on the bending radius required in a particular case.
4. To secure the shafts with the shoe, make bolted connections. The drawing below contains all the hole parameters.

Variation of the pipe bender drawing

Technological aspects of the bending process

By following simple tips, you will avoid problems and mistakes during the bending process. Hydraulic units allow you to bend corrugated pipe from almost any material, including those with walls of quite significant thickness. There are hot and cold methods of bending products.

A type of device with a jack

The easiest way is to use the cold bending method. This technology is suitable for products made of plastic materials. The peculiarity is that the corrugated pipe must first be filled with sand, salt, oil or cold water. Due to this, it is possible to significantly improve the quality of bending, eliminating damage to the product.

If you plan to bend a thick-walled pipe, you should use the hot method.

Various shafts for different types of pipes

• In a manual machine, the absence of sprockets is allowed. The device can be built on a single drive roller. The clamping screw can be replaced with a jack.
• Use steel hooks to prevent the corrugated pipe from slipping during pattern bending.
• If you need to achieve a large bending radius, you should use a machine equipped with 3 rollers.
• To achieve the versatility of the device, it is worth ensuring the mobility of the thrust rollers. This will allow you to adjust the radius.

Watch the following video to understand how a budget DIY profile pipe bender works (YouTube):

To achieve maximum bending accuracy, it is recommended to use a special template. It is easy to make from wood. This solution allows you to achieve perfect accuracy even on the simplest homemade machine.

Pipe bender – a device designed for bending a profile pipe with your own hands. When constructing greenhouses, greenhouses, and gazebos, it can be used to produce various radii of curvature. Such a device can not only be bought, but also quite easily made with your own hands.

In contact with

Main design elements

A simple homemade pipe bender for professional pipes consists of the following parts:

• The bed is a structure made of a channel or angle 600-700 mm long, solid or consisting of two parts hingedly connected to each other.
• The front and rear shafts are made of durable steel and have a diameter of 40-50 mm, length - 60-80 mm. The ends of the shafts are machined to match the inner diameter of the bearings used to rotate them.
• The central shaft is located in the middle of the structure and serves to support and bend the profile passing under it. One of its axes should protrude from the bearing.
• Bearing races - pieces thick-walled pipes. Designed for pressing bearings into them and welding them to the frame.
• Handle - attached to the protruding axis of the front or rear shaft.

Also often, to reduce the effort when bending a profile, a homemade pipe bender in its design contains two gears, a chain and a tension roller.

The gears are mounted on the axles of the front and rear shafts, a chain is pulled between them, fixing its tension with a roller. In this design, the handle is attached to the axis of the front or rear shaft rather than the central one.

To fasten such a device, long screws are used and with which it securely fixed on a workbench or table.

Important! The most exposed parts of a pipe bender are the shafts; they should be made of durable tool steel.

If less strong structural steels are used as a material for shafts, there is a high risk of rapid wear or breakage. In addition, such shafts will not provide high-quality pipe bending.

How to make a pipe bender with your own hands

To make a pipe bender, you need to prepare the necessary and materials, make drawings , both its individual parts and the entire assembled product. Based on these compiled graphic images, the components of this device should be manufactured and assembled into a single whole.

Materials and tools

To make a pipe bender you need the following tools:

• grinder with cutting wheel for metal;
• drill or drilling machine;
• hammer;
• vice;
• metal brush.

In addition to tools for the manufacture of such devices, you need the following materials:

• channel 8P - about 2 meters;
• bearings 205 – 6 pcs.;
• shafts – 3 pcs.;
• thick-walled pipe with an internal diameter of 52-53 mm;
• handle with holder;
• garage curtains;
• car hydraulic jack.

To paint the manufactured structure you will need Oil paint, solvent.

How to make a pipe bender

You can make a reliable and simple pipe bender with your own hands in the following way:

Such a homemade pipe bender for a profile pipe with a square, rectangular or oval cross-section will allow you to create arched structures required sizes.

How to make a hydraulic pipe bender

Using the device described above, it will not be possible to bend profile pipes at an angle of more than 50-60 degrees. For such purposes you will need hydraulic pipe bender, having a different design and principle of operation.

Making such a device yourself is quite simple. The entire assembly process consists of the following stages:

1. To a metal plate with dimensions of two sides of 300×300 mm and a thickness of 8-10 mm 4 corners are welded 300-350 mm long.
2. Two channels with pre-drilled holes for support rollers are welded to the corners. The holes on the channels are not located in one line, but in a ladder - this allows you to change the bending angles of the pipe.
3. A jack is installed on the slab.
4. A “shoe” is put on the jack rod - an attachment for bending a pipe in the shape of a semicircle.
5. The support rollers are made of durable steel and have through holes in the center - they are designed for axles.

To bend a pipe using such a device, first, support rollers are installed in the appropriate positions, then a jack with a shoe.

After this, the shoe, by lifting it with the jack rod, is installed at such a distance from the plane of the support rollers that the profile can be inserted there. Next, by lifting the shoe with the jack rod, the profile is bent at the required angle.

Making a similar pipe bender for a profile pipe with your own hands, a “shoe” and shafts best to buy rather than making it yourself.

Pipe bending methods

Since the manufacture of a profile pipe involves the use of metal of various thicknesses, when bending pipes using the homemade devices described above, they use the following methods:

• Cold – involves bending the profile pipe at the required angle without heating. To prevent unwanted deformations and fractures of the profile from occurring during the bending process, dry sand is poured inside it. The sand to be poured should be very fine and there should be no stones in it.
• Hot – when bending pipes using the hot method, the profile preheated using a burner. This makes the material more flexible and eliminates fractures and deformations. The disadvantage of this method is the formation of an oxide film on the surface of the profile and the susceptibility of the product made from such a pipe to corrosion.

Important! The hot bending method is used for profile pipes with great thickness walls. It should not be used for thin-walled profiles - this will increase their corrosion and create an additional risk of unwanted deformations, cracks and fractures during the bending process.

When hot bending is very it's important not to overheat metal - the color of the heated material should be rich red or crimson. Do not heat the profile to a bright white or faint red color. In the first case, the material is very overheated and the bending due to excessive softening of the metal may be too great; in the second case, on the contrary, it is weakly heated and may crack or break during bending.

Types of pipe benders

Depending on the design, drive type, cost, everything pipe benders are divided for the following types:

• Angle pipe bending machine – most common and the simple appearance of this tool. Used for bending pipes and profiles of various sections and diameters.
• Manual – portable compact tool. Applicable small section.
• Hydraulic – used for profile and round pipes of various diameters. Thanks to the smooth bending process, such equipment allows you to obtain products of the most High Quality.
• Electric is quite bulky, complex and expensive equipment. Designed to do high-precision work. Used for production purposes.

Important! To make arches, it is better to make a manual pipe bender with your own hands, or purchase the simplest factory model.

It is not advisable to buy expensive professional models of electric and hydraulic pipe benders for such needs.

Useful video: how to make a pipe bender with your own hands

Having figured out how to make a pipe bender and turned this idea into reality, you can get a very reliable, simple and convenient tool that will allow you to make various designs from profile or round pipes.

When working with pipes, there is often a need to change the shape of the pipe, in other words, to bend it. This can be done using special equipment, or even buy a ready-made product. But it’s much easier and cheaper to make a simple pipe bender with your own hands. Using such a simple tool will greatly facilitate and speed up your work.

Homemade pipe bender device

The simplest design

Anyone can make the simplest manual pipe bender with their own hands. To make such a basic device, it is enough to have a concrete slab, a drill for working with concrete and steel pins (you need a lot of them).

You can make a homemade manual pipe bender without any drawings and in just three steps:

1. A square grid with cell sides measuring 4 by 4 or 5 by 5 cm is drawn on a concrete slab.
2. In the nodes of the mesh, holes are drilled for metal rods using an appropriate drill (if possible, they need to be deepened as much as possible).
3. At the end of the operation, steel rods are driven into the workpiece.

The process of creating a pipe bender for a profile pipe with your own hands includes several steps:

1. A wide channel or series of channels are installed on a secure base until the desired width is achieved.
2. A frame is mounted in the shape of the letter P, and a hole is drilled on the crossbar for the clamp coupling.
3. Two rollers are installed at an equal distance from the frame. The sprockets of the chain drive, driven by a manual drive, are attached to the rollers.
4. The third roller is attached to a pin fixed in the clamp coupling. A handle is welded to the top of the stud.

You need to bend the profile pipe on the resulting product following the sequence of actions:

• a section of profile pipe of the required length is installed on the feed rollers;
• during the rotation of the clamp handle, the product is pressed against the lower rollers using a third pin fixed at the lower end of the pin;
• Using a chain drive connected to the rollers, the profile pipe is moved through the deformation zone. Read also: "".

Electric hydraulic pipe bender

This device is characterized by greater productivity than the design described above, due to the replacement of the clamp with a hydraulic unit and the chain transmission of the feed rollers to an electric drive. Electrification eliminates tedious manual work and significantly speeds up the process.

Creating an electrified pipe bending machine with your own hands occurs in the following sequence:

• The feed shaft is mounted on a flat surface.
• A pulley is attached to the end of the shaft for a belt drive that goes to the rotor of the electric motor. The drive sprocket of the chain drive is installed at the second end.
• At the required distance from the first shaft, a second one is installed, on which the driven sprocket is attached. It should be noted that if instead of ball bearings on the sides, steel plates in the shape of a trapezoid are welded to the base, you can use ordinary rope rollers rather than shafts as the driving mechanism.
• Mount the deforming roller - from above or below, in the corresponding hole. The roller shaft is located in the grooves of the plates or U-shaped frame. The movement of the roller is limited by the piston rod and the pipe section itself.

Bending pipes without using a pipe bender

If a one-time operation is planned or it is not possible to assemble the necessary structure, you can bend a round pipe without using special installations.

To do this, a blank is cut out of wood, the shape of which corresponds to the planned radius of curvature of the finished product. The pipe is bent in clamps against the workpiece. It is also possible to replace such a template with pins or hooks driven into a wooden stand, located according to the principle of the first pipe bender described in the article.

You can also preheat the sand-filled pipe bending area or, if the work is done in the cold, fill it with water. After the sand is heated or the water hardens, the pipe is also bent around a template of the appropriate curvature.

Another way is to make cuts of the appropriate width in the pipe at the site of the future internal radius, then bend the pipe (the edges of the cuts should align) and restore the integrity of the pipe using electric welding. Using this technology, pipes of any size and in any direction can be bent.