3 Inch Pipe Straightening Machine for ERW Tube Mill
제품 설명
그만큼 3 inch pipe straightening machine is designed for the finishing section of an ERW tube mill line, used to straighten welded steel pipes after forming and sizing.
By applying continuous multi-point roller straightening, the machine effectively corrects pipe bending, residual stress, and local deformation, ensuring the pipe straightness meets customer and international standards.
This model adopts a 7-roller straightening structure, driven by an AC motor through a transmission shaft.
It is suitable for carbon steel pipes up to 3 inches in diameter and can be equipped with Siemens or Inovance (Huichuan) frequency inverters according to customer requirements.
✅1. Technical Specifications
Technical Specifications
| 매개변수 |
사양 |
| 파이프 외경 |
Φ38 – Φ76 mm (3 inch) |
| Pipe Wall Thickness |
1.2 – 4.0 mm |
| Number of Rollers |
7 |
| Straightening Type |
Roller straightening |
| Roller Material |
Hardened alloy steel |
| Drive System |
AC motor + transmission shaft |
| Roller Adjustment |
Worm gear & worm shaft |
| 회선 속도 |
Up to 60 m/min |
| Motor Power |
7.5 – 15 kW |
| Frequency Inverter |
Siemens / Inovance (optional) |
| Installation Type |
Online or offline |
| 전원 공급 장치 |
380V / 50Hz (customizable) |
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작동 원리
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Pipe Feeding
Welded and sized pipes enter the straightening machine smoothly from the finishing line.
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Roller Drive
The AC motor drives the transmission shaft, rotating all straightening rollers synchronously.
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Multi-Roller Straightening
Pipes pass through staggered upper and lower rollers, undergoing repeated micro-bending to remove curvature and internal stress.
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Precise Adjustment
Roller gaps are adjusted by a worm gear mechanism, allowing accurate control for different pipe diameters and straightness requirements.
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Pipe Output
Straightened pipes exit the machine and proceed to cutting, inspection, or packing.
Key Features
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7-Roller Straightening Design
Provides stable and uniform straightening for welded steel pipes.
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Reliable AC Motor Drive
Ensures smooth operation and long-term reliability in continuous production.
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High-Precision Worm Gear Adjustment
Easy to operate, stable positioning, and high adjustment accuracy.
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Variable Speed Control
Optional Siemens or Inovance inverter for perfect speed matching with the ERW tube mill.
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Customizable Configuration
Electrical components, motor power, and roller dimensions can be customized.
응용 프로그램
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ERW welded pipe production lines
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Structural steel pipes
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Construction and scaffolding pipes
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Furniture and general-purpose steel tubes
Frequently Asked Questions
Is this straightening machine suitable only for 3 inch pipes?
This model is designed for pipes up to 3 inches. Machines for larger pipe diameters can be customized.
What straightness accuracy can be achieved?
The machine meets standard straightness requirements for construction and structural pipes. Final accuracy depends on material and wall thickness.
What material are the straightening rollers made of?
All rollers are made of hardened alloy steel for excellent wear resistance and long service life.
Is the roller adjustment complicated?
No. The worm gear adjustment system is simple, stable, and easy for operators to use.
Can this machine be integrated into an existing ERW tube mill line?
Yes. It supports both online and offline installation and can be matched to existing production lines.
Why Choose This 3 Inch Pipe Straightening Machine
This ERW tube mill straightening machine combines stable performance, precise straightening, and flexible configuration.
It is an ideal solution for manufacturers seeking improved pipe quality and reliable finishing-line equipment.
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왜 우리를 선택하시나요?
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1.Leading Technology, Reliable Quality, Excellent Service! Optimized Design, High quality material select! Heat treatment process guarantee!
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2. 스파이럴 베벨 기어, 드럼 기어 커플링 및 침탄 처리. 기어 치면 담금질. 구동 시스템은 안정적이고 효율적이며 소음이 적고 내구성이 뛰어납니다.
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3. 고정밀 내마모성과 긴 공구 수명을 자랑합니다. 모든 기계 선반과 키 홈은 CNC로 위치 지정 및 밀링됩니다.
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4. 품질 부서는 원자재의 품질을 확인하고 기계가 완벽하게 작동하도록 보장합니다.

