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20Ton Self-Aligning Welding Turning Rolls for Vessel Welding
Product Overview
The 20-ton self-aligning welding rotator is medium-heavy load welding auxiliary equipment designed for large cylindrical workpieces. Featuring dual-motor synchronous drive and self-adjusting roller structure, it automatically centers tanks and pipes without manual distance adjustment. With VFD speed control, it provides stable uniform rotation for high-quality circumferential welds. Widely used in pressure vessels, storage tanks, boilers, thick steel pipes, and petrochemical equipment manufacturing.
Key Performance Features
Dual-motor synchronous drive provides strong traction and stable running under full 20-ton load, eliminating slipping during long-hour welding operations
Self-aligning roller mechanism automatically adjusts angle to center cylindrical workpieces, significantly reducing setup time
VFD stepless speed regulation enables smooth low-speed rotation without vibration, ideal for submerged arc automatic welding
Optional PU rollers to protect stainless steel surfaces; forged steel rollers available for heavy carbon steel workpieces
Thickened integral welded frame provides high rigidity and anti-deformation characteristics, suitable for heavy-duty continuous production
Easy integration with welding manipulators to build automatic cylinder girth welding production lines
Main Technical Specifications
Item
Specification
Model
HGZ-20 Self-Aligning Welding Rotator
Rated Load Capacity
20 Ton (Full Set)
Applicable Workpiece Diameter
500 mm ~ 3500 mm
Roller Size
Φ350 × 120 mm
Roller Material
PU / Forged Carbon Steel Optional
Linear Rotating Speed
100 ~ 1000 mm/min Stepless Adjustable
Motor Power
2 × 1.1 kW Dual Motor
Control System
VFD Inverter + Hand Pendant
Working Voltage
380V, Customizable for 415V
Standard Configuration
1 Driving Frame + 1 Idler Frame
Machine Structural Composition
Driving Frame: Dual motor synchronous driving system supplies steady rotary power to avoid heavy-load slipping
Idler Frame: Supports the other end of workpiece, balances rotation and reduces vibration
Self-Aligning Roller Assembly: Auto angle adjustment centers different-diameter cylinders
Frequency Conversion Control Cabinet: Enables forward/reverse rotation and speed adjustment with overload protection
Hand Operation Pendant: Convenient field operation with emergency stop button
Reinforced Welded Base: Thickened structure guarantees stability under heavy load
Typical Application Fields
Medium & large pressure vessel circumferential welding
Chemical & environmental storage tank fabrication
Boiler shell and heat exchanger processing
Thick-walled steel pipe and large hydraulic cylinder welding
Petrochemical machinery and large cylinder component manufacturing
Frequently Asked Questions
What is the rated load capacity of this welding rotator?
Standard whole set rated load reaches 20 Ton.
What workpiece diameter range can it adapt to?
Suitable cylinder diameter from 500mm to 3500mm.
Can roller material be customized?
Yes, polyurethane roller and forged steel roller are optional.
Can rotation speed be adjusted during operation?
Equipped with VFD stepless speed regulation, real-time speed adjustment supported.
Can it work with welding manipulator?
Yes, widely used together for tank girth welding projects.
Voltage options available?
Standard 380V, customized 415V power supply supported.
