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20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls

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20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls

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Noise Level : ≤65 Db

Supply Ability : 500 units/month

Rotaion Speed : 0.1-1rpm

Model Number : Hgz-20

Voltage : 380V

Certification : CE

Model NO. : Hgz-20

Brand Name : LEMAR

Speed Control Mode : Variable Frequency Drive

Linear Rotation Speed : 6 ~ 600 mm/Min

MOQ : 1

Delivery Time : 10-20 work days

Emergency Function : Emergency Stop Button

Payment Terms : ,T/T,D/P,D/A,L/C

Roller Type : Rubber-Steel Composite Roller

Price : 500-1000USD

Rated Load : 20000kg (20 Ton)

Place of Origin : WUXI

Packaging Details : 120.00cm * 74.00cm * 100.00cm

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20 Ton Self-Aligning Welding Rotator | Auto-Centering Tank Pipe Welding Turning Rolls
Product Overview
This heavy-duty self-aligning welding rotator is developed for girth welding of medium-large cylindrical workpieces. Adopting swing-arm auto-centering roller structure, it automatically adapts to various cylinder diameters without manual spacing adjustment. With VFD stepless speed control, it achieves smooth rotation under full-load 20-ton working condition. Ideal for mixed-batch production with frequently changed workpiece sizes, widely used in tank workshops, pressure-vessel factories and metal fabrication plants.
20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls
Technical Specifications
Item Specification
Rated Bearing Load 20 Ton (Maximum allowable workpiece weight)
Applicable Workpiece Storage tank, pressure vessel, boiler shell, steel pipe, cylindrical component
Applicable Workpiece Diameter Φ400mm-Φ3500mm
Effective Rotating Linear Speed 6-60 m/h, stepless adjustable
Roller Composition 1 driving group + 1 idler group
Roller Material Polyurethane (Solid steel roller optional)
Driving Motor Power 2 × 1.5KW
Reducer Type Cycloidal pinwheel reducer
Control System VFD frequency conversion speed control system
Operation Mode Pendant manual control
Frame Treatment Welded structure with stress-relief annealing
Power Supply 380V 50Hz, customizable voltage & frequency
Core Features
  • Swing-arm auto-centering roller structure, automatically fits different cylinder diameters, no manual roller-gap adjustment
  • VFD stepless speed regulation, stable full-load rotation to obtain uniform and beautiful girth welding seams
  • High-strength heavy-load polyurethane rollers, high friction coefficient, anti-slip and protect workpiece surface from scratches
  • Reinforced welded frame with stress-relief annealing, excellent rigidity to resist deformation under heavy-load operation
  • Hand-held pendant controller, easy on-site start-stop and real-time speed adjustment
  • Support multiple optional upgrades, can link with welding manipulator for fully-automatic girth welding workflow

20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls

Manufacturing & Quality Assurance
  • Structural Forming Process: Thick steel plate blanking, integral frame welding and stress-relief annealing. Eliminate internal stress to prevent frame deformation under 20-ton heavy-load operation.
  • Precision Component Assembly: Core transmission parts are precision-machined under strict tolerance. Motors, reducers and self-aligning roller groups are assembled, calibrated and debugged one-by-one.
  • Multi-level Performance Test: Complete electrical wiring and system commissioning. Each machine passes no-load running test and simulated heavy-load test, verifying rotation smoothness, auto-centering performance and safety functions.
  • Final Inspection & Export-grade Packing: Full-function performance inspection for each welding rotator. Qualified machines are cleaned and packed in export-standard packaging.

20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls

Self-Aligning vs Adjustable Type Comparison
Comparison Item Self-Aligning Type Adjustable Type
Adjustment Way Auto-swing centering Manual screw spacing adjustment
Workpiece Change Fast, no manual tuning Need manual readjustment
Operation Difficulty Simple Requires operator adjustment
Anti-offset Performance Good Depends on manual setting
Best-fit Scenario Frequent diameter changes Fixed-spec mass production
Cost Higher Budget-friendly
20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls
Frequently Asked Questions
Q1: Is manual adjustment required when changing workpiece diameter?
A1: No. Swing-arm roller structure can automatically complete centering for different-size cylinders.
Q2: Will PU rollers leave indentations under 20-ton full-load condition?
A2: No. High-elastic heavy-load PU rollers disperse pressure evenly to protect workpiece outer surface.
Q3: Can this welding rotator keep continuous working under rated 20-ton load?
A3: Yes. Reinforced frame and matched driving system support long-time full-load continuous operation.
Q4: Can you customize voltage for overseas projects?
A4: Yes, voltage and frequency can be customized according to customers' local power supply.
Q5: Can it work with automatic welding manipulator?
A5: Yes, optional synchronous linkage assembly can realize fully-automatic girth welding.

Product Tags:

20 ton welding rotator with auto-centering

      

self-aligning pipe welding turning rolls

      

tank welding rotator with turning rolls

      
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