Advantages of modern pipe benders
The obvious fact is that it is difficult to make metal pipes to put it mildly, but if you know how to calculate the bend and use super-powerful technique, this can be easier. Moreover, extremely unpleasant moments may arise, such as flattening or deformation of the cross section. The most optimal way to help in bending is to pre-prepare them.
The preparation methods include the freezing of blanks. But it is more applicable in winter, or in summer in an industrial refrigerator.
- For this, it is necessary to place water in one end of the pipe, and close the other end. Then the blank is placed in the cold. After freezing, the workpiece bends much better and no deformation appears on it.
- The pipe is filled with sand, covered with plugs twice its diameter. Then drill a couple of holes, so that the gas comes out during the heating and does not cause deformations. The marked section for bending is heated with a blowtorch and attached to a pipe bender, which unbends both the profile and round pipe.
By the way, modern equipment for bending is able to do this even without the preparation of pipes.
- You can not weld and use fittings for installation.
- For decorative purposes, structures with integral pipes look much more interesting.
- Pipe benders contribute to the accuracy of product dimensions.
- Absence of any kind of cracks and cracks, which means an ideal technical condition.
- A small amount of applied manual labor due to the electric drive.
How to calculate the bend and choose the bending devices
Pipe bending devices are selected according to the material and heading section.
Therefore, if you are going to bend copper products, then you will have enough simple mechanical devices. It can be: manual, hydraulic, lever benders. Are able to cope with bending up to 3 inches of diameter.
For example, for profiled pipes, in contrast to round pipes, it is necessary to apply more effort and physical labor.
Therefore, they use devices with a large radius of operation. Pipes of circular cross section also require high-tech equipment. Domestic manufacturers offer a list of various devices that are not inferior to foreign versions.
Profilegib( PG-1 and PG-2)
The problem of how to calculate the bend, this device is almost solved, so it gained popularity among the newcomers due to its inexpensive cost. He and they can use it, it is easily transferred from place to place during installation. Bending with this device can be billets made of aluminum, copper, steel.
The device consists of 3 rollers placed on the frame. The pipe is stretched by a center roller, it is clamping, it is turned by a handle. Manual bender of the second version( PG-2) has a more perfect design. The cross section thanks to it is already reached up to 6x3 cm. But, the sequence and principle of operation are the same as with the previous device.
This miracle of technology helps to bend even the curly rings from the blanks, which would seem simply impossible.
The cost of the device is about 700-800 dollars.
These two instruments have received the most recognition from all roller benders.
How to calculate the bend and create a self-made pipe bender
. No matter how remarkable the aforementioned machines were, it is necessary to give a lot of money for them, so many gold pens have invented homemade bending machines for their home. Economical solution!
It should be noted that for their creation, various devices were used. For example, they created such machines with electric drive, which were not inferior to the factory ones. And in some ways, even better.
It is necessary to remember
- The machine bed for machines must be resistant to heavy loads, and it is recommended to use a metal channel anchorage to the foundation.
- Any turner can perform shafts for you, the working parts of the machine. All parts must be connected with bearings. For the shaft mechanism, two gears can be selected: chain and gear. In this case, gear is used in the mechanisms of cars. The belt transmission is not reliable in the loads and there was a slip of belts.
- To be able to bend the workpiece, the homemade machine is also equipped with a roller, which is mounted from the metal corners with screws.
- For bending workpieces, the drive can be manual, but also electric, but it needs a unique cover, which will become a protective mechanism in terms of safety.
Homemade machines allow you to make bends much more cross-section than factory bends. Therefore, having made yourself such a machine at home, you can bend both profile and round pipes without problems. A curved pipe will be the basis for your greenhouses, awnings, porch and any other fiction of your imagination.