80-7 Stainless Steel Pipe Rounding Machine for High Volume Production

1.Features of 80-7 pipe rolling machine
1.1 It applies full mechanical drive, with compact structure and high reliability.
1.2Driven by three wheels, it will not slip easily and the thin-wall can be bent.
1.3The wheels at both sides are distributed asymmetrically, which shortens

the linear segment.
1.4 Parts can be fed at both sides of the wheel.
1.5The double foot switches are provided with emergency stop function,

facilitating to operation.
1.6It has balanced drive. Adjusting the pressing can obtain circular arc or

spiral shape with different curvature.
1.7Changing the groove shape of mould can process different metal profiles,

such as angle steel, flat steel, round steel and other shaped cross section steel.
1.8It can bend profile with large radius, which prevents the disadvantage of

especially big bending mould. It is a necessary supplement to single-end and

double-end series tube bender.
1.9The product can have medium and large volume production and can operate

fast with high efficiency.

2.The working principle of Stainless Steel Pipe Rounding Machine

**Power Drive Principle**: The 80-7 pipe rolling machine is usually powered

by a power source such as an electric motor. The power is transmitted to

each roller through transmission devices such as a speed reducer, gears,

belts or chains, enabling the rollers to rotate at a set speed and direction,

providing a power foundation for the pipe rolling.

**Roller Action Principle** - **Pressing Down and Molding**: The machine

generally has an upper roller and lower rollers. The upper roller can move

vertically under the action of a hydraulic or mechanical device to press

down on the pipe. The lower rollers mainly perform rotational motion.

When the pipe is placed between the upper and lower rollers, the upper

roller presses down, bringing the pipe into close contact with the lower

rollers. The rotation of the lower rollers drives the pipe to move together.

During this process, the pipe is subjected to the pressure and friction of

the rollers and gradually undergoes bending deformation.

- **Three-Point Bending Principle**: By utilizing the relative positions and

acting forces among three points (usually one upper roller and two lower

rollers), a force system that causes the pipe to bend is formed. Under the

action of these three points, the pipe bends according to a certain radius

of curvature. By adjusting the distances and relative positions among the

three rollers, the bending radius and shape of the pipe can be controlled.

**Pipe Deformation Principle** - **Plastic Deformation**: Under the

pressure and friction of the rollers, the material of the pipe undergoes

plastic deformation. The inner layer of the pipe is subjected to compressive

stress and will produce compressive deformation; the middle layer material

remains basically unchanged; the outer layer is subjected to tensile stress

and will produce tensile deformation. As the rollers keep rotating and the

pipe keeps advancing, this plastic deformation accumulates continuously,

causing the pipe to gradually wind into the required circular or other specific

shapes.

- **Continuous Bending**: When the pipe passes through the roller set,

it is a continuous bending process. The shapes and dimensions of the

rollers and their coordination ensure that the pipe can be continuously

bent along a predetermined path and curvature, thus forming a uniform

and smooth wound pipe shape.

**Size Control Principle**: The machine is equipped with a size adjustment

mechanism. According to the required size requirements of the pipe, such

as diameter and wall thickness, parameters such as the spacing between

the rollers, the pressure, and the feeding speed of the pipe can be precisely

adjusted. Through the precise control of these parameters, it is ensured that

the rolled pipe meets the specific size specifications and accuracy requirements.

3.Applications of Pipe forming machine

Construction Industry:

The pipes produced by the 80 - 7 pipe rolling machine are commonly used in

construction projects. They can be used for structural purposes, such as in

building frameworks, or for plumbing and heating systems.

Automotive Industry:

Some automotive components, like exhaust pipes and hydraulic lines,

may be manufactured using pipes produced by this type of machine.

The ability to produce pipes with specific diameters and wall thicknesses

makes it suitable for meeting the precise requirements of the automotive industry.

Manufacturing of Industrial Equipment:In industries such as petrochemical,

power generation, and machinery manufacturing, pipes are used in a wide range

of equipment. The 80 - 7 pipe rolling machine can produce pipes that are used in

heat exchangers, pipelines for transporting fluids, and various mechanical components.

4.Main Mechanical Parts

5.Specification: