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20 Ton Self‑Aligning Welding Rotator | Auto‑Centering Tank Pipe Welding Turning Rolls
| MOQ: | 1 |
| Price: | 500-1000USD |
| Standard Packaging: | 120.00cm * 74.00cm * 100.00cm |
| Delivery Period: | 10-20 work days |
| Payment Method: | Western Union,T/T,D/P,D/A,L/C |
| Supply Capacity: | 500 units/month |
Detail Information
Place of Origin
WUXI
Brand Name
LEMAR
Certification
CE
Model Number
Hgz-20
Document
Model NO.:
Hgz-20
Rotaion Speed:
0.1-1rpm
Voltage:
380V
Rated Load:
20000kg (20 Ton)
Speed Control Mode:
Variable Frequency Drive
Roller Type:
Rubber-Steel Composite Roller
Emergency Function:
Emergency Stop Button
Noise Level:
≤65 Db
Linear Rotation Speed:
6 ~ 600 Mm/Min
Product Description
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.
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
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.
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 |
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.
