Pipe Straightener Machine

 

The Pipe Straightener Machine is an essential auxiliary component of a welded pipe production line. It is primarily used to straighten pipes after welding and sizing, ensuring that they meet required linearity and geometric standards. Typically placed downstream in the production line, it corrects bending or deformation caused during forming, welding, cooling, or transportation processes.


 

Product Details

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Product Details

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Product Description

 

1. Introduction

The Pipe Straightener Machine is an essential auxiliary component of a welded pipe production line. It is primarily used to straighten pipes after welding and sizing, ensuring that they meet required linearity and geometric standards. Typically placed downstream in the production line, it corrects bending or deformation caused during forming, welding, cooling, or transportation processes.


2. Function in Welded Pipe Production

  1. Straightens formed welded pipes – Corrects axial bending, waviness, and ovality issues.

  2. Improves dimensional accuracy – Ensures straightness for further processing such as cutting, punching, coating, or bundling.

  3. Reduces defect rate – Enhances product consistency and reduces scrap.

  4. Supports automation – Compatible with high-speed continuous lines, improving overall production efficiency.


3. Technical Specification Table

Item Specification Range
Applicable Pipe OD Φ15mm – Φ120mm (customizable)
Pipe Wall Thickness 0.5mm – 6.0mm
Number of Rollers 5+3, 6+4 configurations (top + bottom)
Roller Material Alloy steel / carbide-treated
Straightening Speed 10–60 m/min (adjustable via inverter)
Motor Power 5.5 – 15 kW
Adjustment Method Manual / Electric / Hydraulic
Control System PLC + HMI (optional)
Pipe Type Welded pipes (carbon steel, stainless steel, etc.)
  • Pipe Straightener Machine
  • Pipe Straightener Machine1

 

  • Pipe Straightener Machine2
  • Tube straightening machines

4. Main Components

  1. Machine Base – Welded steel frame supporting the system;

  2. Straightening Rollers – Core units arranged in top and bottom sets for pipe correction;

  3. Drive System – Motor + gearbox + chains/gears to rotate the rollers;

  4. Adjustment Mechanism – To adjust roller gap and angle for different pipe sizes;

  5. Guide Device – Ensures precise entry of the pipe into the rollers;

  6. Control Panel – For setting speed, pressure, and roller position;

  7. Safety Devices – Emergency stop buttons, protective covers, etc.


5. Operation Procedure

  1. Preparation:

    • Ensure power and lubrication systems are functioning;

    • Adjust roller spacing according to pipe specifications.

  2. Startup Settings:

    • Set appropriate straightening speed;

    • Start motor and ensure smooth rotation of rollers.

  3. Feeding and Straightening:

    • Feed the welded pipe from upstream equipment;

    • Pipe passes through rollers and is straightened under pressure.

  4. Output and Inspection:

    • Straightened pipes are delivered to the next process;

    • Visually or dimensionally inspect for straightness and surface quality.

    • Tube straightening machines1
    • Tube straightening machines2

     


6. Maintenance

Daily Maintenance:

  • Inspect rollers for wear or damage;

  • Check for loose bolts or fasteners;

  • Clean machine surfaces to prevent jamming;

  • Lubricate moving parts (recommended daily).

Periodic Maintenance (monthly or quarterly):

  • Calibrate roller angles and spacing;

  • Check electrical components for loose connections or overheating;

  • Maintain electric/hydraulic adjustment systems (if equipped);

  • Replace excessively worn parts.

Precautions:

  • Do not process non-standard or oversized pipes;

  • Avoid long idle running;

  • Stop the machine immediately if abnormal noise, vibration, or jamming occurs.

  •  
  1. Enter Section Equipments
  2.  
  3. 1. Coil car and Storage
  4. 2.Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler
  5. 3.Peeler and hold down roll arm
  6. 4.Flattening Machine
  7. 5.Automatic and Semi Auto Shearer & Butt Welder
  8. 6.Vertical Cage Accumulator​ & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator

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Finishing Section
 
  1.  
  2. 1. Eddy current machine
  3. 2. Seam annealing machine
  4. 3. Straightener machine
  5. 4. Chamfer and end facer machine
  6. 5. Hydro Tester machine
  7. 6. Threading machine
  8. 7. Painting and oil machine
  9. 8. Automatic bundle and package machine

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Spare Parts and Consumble Parts
 
  1.  
  2. 1. Rollers, Moulds, Dies, D2,D3 material to choose
  3. 2. Ferrite, Impeder, Fiberglass tube
  4. 3. HSS saw blades, TCT Saw blades, Friction saw blades
  5. 4. OD burr remove inserts, ID burr remover inserts
  6. 5. HF welder Induction Coil and other HF welder spare parts
  7. 6. Copper tube for induction Coil, PTFE pipe for Induction Coil
  8. 7. Mosfet, Boards
  9. 8. Steel pipe Strapping machine
  10. 9. Zinc Spray Machine, Zinc wire, Zinc spray gun

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Certificate
 

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Our Service
 
  1. Why Choose Us?
  2. 1.Leading Technology, Reliable Quality, Excellent Service! Optimized Design, High quality material select!  Heat treatment process guarantee!

  3. 2.Spiral bevel gear, drum gear coupling and carburization. Gear teeth quenching. Driven system stable, efficient and wearable with lower noise.

  4. 3.High precision wear resisting and Long life of toolings. All the machine Lathes, Key Grooves are positioned and Milled by CNC.

  5. 4.Quality department make sure the material of the raw materials quality, and ensure the machine running perfect.

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After-sales service

  1. 1.Machine test running videos will supply to customer before shipment.
  2. 2.Online techenical support WHOLE LIFT FREE.
  3. 3.Professional engineers team to install the machine,  train your employee well.
  4. 4.One year warranty and life-long technical support.
  5. 5 .24 hours for engineer response.
  6. 6.Your business relationship with us will be confidential to any third party.
  7. 7.  We welcome customers to visit our factory anytime.

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Pipe Straightener Machine FAQs

What is a pipe straightener machine used for?

It is used to correct bending and deformation in pipes after forming or welding, ensuring the pipe is straight and suitable for further processing or final use.

Where is the straightener typically installed in a welded pipe line?

It is usually installed after the sizing and welding section, and before cutting or stacking, to ensure the pipes are geometrically accurate before final steps.

How many rollers are typically used?

Most machines use 8 to 10 rollers, configured as 5 over 3, 6 over 4, or similar combinations for optimal correction.

Is the straightening process automated?

Yes. Most modern machines are part of automated production lines and can be equipped with PLC controls and sensor feedback systems for precision.

What is the output speed of a straightener?

Typical straightening speeds range from 10 to 60 meters per minute, depending on the pipe size and line configuration.

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