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rebar bending machines
The main use of rebar bending machines is for construction projects such as bridge structures, buildings and road infrastructure. Rebar bending machines can bend rebars and rods with specified diameters up to 360 degrees. In addition to rebar, rod bending machines also bend pipes.
What is a rebar bending machine?
Most rebar bending machines are used in construction projects for making bridge structures, metal structures of buildings, and road infrastructures. Rebar bending machines can bend rebars and rods with a limited range of diameters up to 360 degrees. In addition to bending rebars, these machines can bend metal wires as well. These types of bending machines do not require three-phase industrial electricity and can be operated with city electricity. These machines are manufactured in three models including simple, semi-automatic and automatic. The main components of these machines are an electric motor, a hydraulic oil tank, a gearbox, a workbench, movable and fixed wheels, a foot pedal, and an electrical panel.
Types of rebar bending machines
As mentioned above, rebar bending machines can be divided into three types: Simple, semi-automatic, and automatic. In simple rebar bending type, the machine performs only the bending operation and the operator has to do the loading and unloading himself. The rebars are already cut and the operator performs the bending operation by pressing the pedal after loading. However, in a semi-automatic rebar bending machines, part of the operations mentioned above, such as the longitudinal cutting of the rebars or loading and unloading of the rebars are all performed by the machine. These devices can also provide more than one bending radius during a bending process. For instance, Pedax and Schnellgroup are two of the manufacturers of this type of machinery. It is worth mentioning that these types of machines can operate with industrial electricity and their production speed is higher than that of simple bending machines. Fully automatic rebar bending machines are those which have a mini PLC and the amount of bending radius and cutting length have already been given to their mini PLC. Moreover, rebars are loaded or unloaded by the machine itself. These machines can also do more than one bending radius and one bending angle during a work process and are more accurate than the simple and semi-automatic machines. These types of machines operate with industrial electricity and their production speed is several times faster than semi-automatic and simple devices. For information on how they work, it is recommended to watch the video of the machinery manufactured at TJK and Schnell Group.
What is a bar bending machine and how does it work?
Bar bending machines are devices that shape or bend bars. These forms or bends can be two-dimensional or three-dimensional. These machines are mostly used in automotive, construction, home appliances and furniture industries. These machines can bend and shape the bars semi-automatically or fully automatically, and the bars can be placed either as straight in the feeder load or as coiled in the machine. They are more delicate and precise than rebar bending machines and are structurally produced in three types:
- Radius rebar bending machines
- Bar bending machines
- Rebar shaping and cutting machines
In these machines, a three-roll system is used to change the radial shapes and the bending angle does not matter. They are used to produce concrete columns and piles for buildings and bridges. They are relatively simple in structure and their components are an electric motor, a hydraulic oil tank, a gearbox, a workbench, three rollers, a foot pedal and an electrical panel. One of the main differences between these machines and the rebar bending machines is in their ability to move back and forth. Another difference is the adjustment of the radius of curvature by the horizontal rollers. The closer the distance between the rollers is, the greater the bending radius will be.
These machines are used to form metal bars according to a certain bending angle and radius. In this type of bending machine, the amount of bending radius depends on the radius of the bending pins of the machine and the bending angle depends on the amount of rotation in the bending rotor. The driving force for this type of machine is either electric or hydraulic. Depending on the diameter of the bars, they can be manufactured to be electric or hydraulic. These types of machines have relatively low accuracy in terms of bending accuracy because the limited number of holes installed on the machine will not allow the operators to bend the bars according to what they want. These types of machines are not fast because the loading, the removal of bent bars, and the adjustments are all done manually.
In addition to bending the bars, these machines cut and measure them. The cutting process can be before or after the bending process. These devices are usually automatic and their feeding operation can be done using automatic systems known as feeder loads or the device operator himself performs the loading operation. High speed in production and high accuracy are the other advantages of this type of machine. They have a mini PLC that can be programmed to determine the desired amount of bend, the cutting length or the cutting time. Bars can also be placed in the machine as straight or as coiled. In the machines where the bars are fed as coils, the machines are equipped with a straightening system.
Rebar bending machines are designed and manufactured in the following types in terms of functionality:
- Machines which are designed to bend a rebar or rod.
- Machines which are designed to bend several rebars or bars simultaneously.
- Machines that have a holding table and are equipped with rotating rollers for ease of work.
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How do rebar bending machines and automatic bar bending machines differ?
- It should be noted that rebars can found as either ribbed or smooth (without any ribs on them) but bars are simple and relatively small in diameter. Therefore, rebar bending machines are more powerful and at the same time simpler than bar bending machines.
- Rebar bending machines are mostly used in construction industry which need lower accuracy. However, the bar bending machines are used in the automotive and home appliance industries, which require relatively high precision.
- In rebar bending machines, straight and pre-cut rebars are fed, but the feeding in bar bending machines is mainly performed on coiled bars, which are smoothed by the straightening system.
- Rebar bending machines only perform the bending operation while bar bending machines perform the cutting process in addition to bending the bars in different directions.
- Rebar bending machines have several features such as a high strength, the ability to bend several rebars simultaneously, easy portability, easy maintenance and work in harsh environmental conditions, which are other differences with bar bending machines.
Schnell is one of the leading manufacturers in the field of manufacturing various types of cutting, bending machines and related industries for various types of rebars and ribbed wires. In the video below, you can see one of the products of this company.
More information about Bar Bending Machines
Selected films of rebar bending machines
Despite the simple appearance of rebar bending machines, they have various capabilities, facilities and equipment. These machines are divided into three types: simple, semi-automatic and fully automatic, each of these can be a good option to buy. If you are planning to buy rebar benders, it is recommended to watch the following videos.Read More