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Pipe Straightener - China

price: 1.00 Dollar US$

Pipe straightener

Cross Roll Type Tube Straightening Machine Specifications:

Our tube straightening machine is designed to handle different models of pipes with diameters from 20 mm to 508 mm.

According to API standard.

1 - Parameter:

Application:¢20mm- ¢508mm

Application length:8-12m

working speed:10-29m/min(decide d by the pipe bend, step less speed regulation)

accuracy ≤1/1000mm

structure:vertical opposite roller, layout 2-2-2-1

Qty.

of driving roller :6 piece(upper 3, down 3)

Qty.

of driven roller:1 down roller(delivery roller)

Adjustable range of the roller:27-330

Power:260Kw

2 - Structure:

Vertical opposite roller, layout, layout is upper 4 and down

3 - the 6driving roller are driven by 2 sets driving mechanism this mechanism is consisted of motor, 3 output shafts reducer and 3 universal couplings.

Electric

is setted at “automatic/industry computer” mode140mm Straightener.

Tube Straightening Machine Processes:

A pipe straightener employs parabolic-shaped upper and lower rollers in conjunction with hydraulic cylinders to exert pressure between alternating parabolic rollers.

This process eliminates any bends and twists in the pipe as it is fed through the rollers.

The machine offers flexibility in straightening pipes by allowing the adjustment of the top and bottom rollers.

They can be set anywhere from a right angle with respect to the pipe, up to approximately 45 degrees.

The upper rollers can be adjusted in the opposite angular direction compared to the lower rollers.

Some of the upper and lower rollers are motorized, typically with hydraulic motors.

These motors are interconnected in a series, ensuring that all rollers rotate at a consistent speed, while specific rollers remain stationary as idlers.

The entire apparatus can be mounted on a structural frame, which, in turn, can be attached to a trailer axle for easy transport.

This eliminates the need to transport bent or twisted pipes to the machine, as you can simply move the machine to the location of the pipes.

To facilitate the feeding of pipes into the machine, a V-trough is positioned at one end, guiding the pipes into and between the rollers.

At the opposite end, a cone-shaped guide directs the straightened pipe as it exits the machine.

The hydraulic power required to operate the machine can be sourced from the towing vehicle.

Alternatively, an independent hydraulic system with an external power source, such as a motor or internal combustion engine, can be utilized.

Both the upper and lower parabolic rollers are adjustable to modify the center distances between them, making the machine suitable for pipes of various sizes.

Biaohuang's Cross Roll tube straightening machine is a multi-roll machine used for straightening pipes without excessive cold working or introducing enough ellipticity to affect physical properties, especially compressive strength.

Seamless or welded pipes are cold straightened primarily by passing them through the straightening machine, which consists of spaced sets of 5 or 7 or more rolls, each set capable of correcting the curvature of the pipe length.

One pass is sufficient to achieve ASTM straightness and ovality tolerances.

The cross rolls, one concave and one convex, rotate the pipe about its axis and axially feed it through frictional forces.

Each pair of opposing drive rolls (one above and one below) can be hydraulically linked together or moved independently up or down to apply the required bending moment to straighten the pipe.

This action counteracts forming, internal material, or welding thermal stresses.

Over-straightening can damage the outer diameter characteristics of the pipe, so you must always monitor for side effects that would prevent you from achieving the highest quality level in the process.

All parabolic shape rolls are made of forged, hardened, and ground D2 alloy for long life.


Company Contact:


  • Phone: (86) 772 – 3133116

  • Address: No.5 West Butterfly Mountain Road. Liuzhou City, Guangxi, China., Liuzhou , Guangxi , China

  • Email: Email


Published date: April 30, 2026

  • Business Description: Liuzhou Biaohuang Machinery Equipment Co., Ltd. is located in Liuzhou, a beautiful city in Guangxi Zhuang Autonomous Region in China.

    We integrate production and sales as a whole, with self-management import and export rights

    Our overseas offices are located in Singapore and Dubai.

    Our group has seven factories in China.

    These factories are located at the cities of China at Liuzhou, Shanghai, Jiangsu, Shandong, Tianjing, Hebei and Liaoning.

    Liuzhou Biaohuang Machinery Equipment Co., Ltd. is now one of the regular suppliers to the international market.

    During the past few years, our company secured the flow of several supplies from different countries to the final destination.

    We have more than 15 years of experience in export sales.

    Our products are sold to United States of America, Dubai, Saudi Arabia, Yemen, Egypt, Indonesia, Vietnam, Malaysia, Singapore, Thailand, Africa etc.

    Our products cover thread protector for OCTG & drill pipe, plastic pipe, bucking machine, CNC pipe threading machine all for tubing & casing pipe processing etc.

    Our Products:

    - CNC Pipe Threading Machine: CNC pipe thread lathe suitable for cutting oilfield pipe threads.

    Suitable for turning all kinds of pipe threads.

    - Bucking Machine: The Pipe Bucking Machine is an innovative compact fastener designed for the safe and effective assembly and disassembly of pipes at the horizontal level for pipe yards etc.

    - Thread Protector: Designed to meet current industry standards set by the American Petroleum Institute (API).

    the Ultra product line provides excellent impact protection.

    - Plastic Pipe: PE polyethylene feed pipe is widely used in the field of water supply pipe manufacturing, its high strength, corrosion resistance, non-toxic and other characteristics.

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