Products introduction
- This 20-ton self-adjusting welding rotator is specifically designed for the circumferential seam welding of cylindrical workpieces-such as tanks, shells, pressure vessels, boilers, and pipelines.
- Featuring a robust, heavy-duty steel structure, it offers exceptional rigidity and stable load-bearing capacity.
- The self-adjusting rollers automatically adapt to varying cylinder diameters, eliminating the need for manual spacing adjustments.
- Equipped with Variable Frequency Drive (VFD) speed control, the unit ensures smooth operation and high concentricity, resulting in uniform weld formation; it is ideally suited for the automated welding production of a wide range of large and medium-sized workpieces.
Product Specifications
|
Model
|
Loading Capacity (kg) |
Pipe/Tank Diameter (mm) |
Rubber Roller Dia. & Width (mm) |
Roller Speed (m/h) |
Motor Power (kw) |
Speed Adjust
|
|
|
Rubber Roller |
Steel Roller |
||||||
|
ZTG-5 |
5000 |
Φ250-2300 |
Φ250*100 |
Φ240*20*2 |
6-60 |
0.75 |
Variable Frequency Drive (VFD)
|
|
ZTG-10 |
10000 |
Φ320-2800 |
Φ300*120 |
Φ290*25*2 |
1.1 |
||
|
ZTG-20 |
20000 |
Φ500-3500 |
Φ350*120 |
Φ340*30*2 |
1.5 |
||
|
ZTG-30 |
30000 |
Φ600-3800 |
Φ350*120 |
Φ340*30*2 |
2.2 |
||
|
ZTG-40 |
40000 |
Φ600-4200 |
Φ400*120 |
Φ390*40*2 |
3 |
||
|
ZTG-50 |
50000 |
Φ700-4500 |
Φ400*120 |
Φ390*40*2 |
4 |
||
|
ZTG-60 |
60000 |
Φ750-4800 |
Φ450*120 |
Φ440*50*2 |
4 |
||
|
ZTG-80 |
80000 |
Φ850-5000 |
Φ500*120 |
Φ490*60*2 |
5.5 |
||
|
ZTG-100 |
100000 |
Φ1000-5500 |
Φ500*120 |
Φ490*70*2 |
7.5 |
||
|
ZTG-150 |
150000 |
Φ1100-6000 |
Φ500*120 |
Φ600*Φ280 |
2*5.5 |
||
| ZTG-250 | 250000 | Φ1200-7000 | / | Φ700*380 | 2*5.5 | ||
| ZTG-500 | 500000 | Φ1800-8000 | / | Φ850*350 | 2*7. | ||
Product Manufacturing Process
Strictly control the production process to ensure product quality.
1. The machine body is constructed from thickened, national-standard structural steel; it undergoes rust removal and sandblasting pretreatment to ensure superior corrosion resistance and excellent paint adhesion.
2. The machine frame features full-weld reinforcement and undergoes post-welding vibration aging treatment to relieve internal stresses, ensuring it remains free of deformation under long-term load-bearing conditions.
3. Core components are precision-machined to ensure exact dimensions and tight tolerances, resulting in stable and reliable operation.
4. Equipped with brand-name, industrial-grade components that undergo a comprehensive testing regimen-including no-load, full-load, speed regulation, and linkage tests-to meet export standards and ensure a low failure rate.
Key Features
-
Automatic Self-aligning Design
Self-aligning rollers automatically adapt to different cylinder diameters and center positions. No manual spacing adjustment is required, saving labor and suitable for mass production.
-
VFD Stepless Speed Regulation
Equipped with industrial VFD inverter for smooth start and adjustable speed. Stable operation without jitter, ensuring uniform welding speed and high-quality weld forming.
-
Thickened Wear-resistant PU Rollers
High-elastic PU rollers feature strong load-bearing capacity and anti-slip performance. Silent operation, no scratches on workpiece surface and paint, with long service life.
-
Stable & Durable Structure
Heavy-duty steel frame with stress relief treatment. High rigidity and strong load capacity, no deformation or shaking during long-term continuous industrial operation.
-
Easy Operation & Intelligent Control
Independent electric control box with one-key operation. Supports forward/reverse rotation and speed adjustment, and can link with welding machines to realize automatic circular welding.
Standard Mounting Accessories
Standard Factory Configuration
- Industrial VFD Control Cabinet (Standard Configuration)
- Pure Copper Drive Motor and High-Precision Gear Reducer Assembly
- Wear-Resistant, Self-Adjusting PU Roller Set (Fully Pre-installed at Factory)
- Standard Power Cable and Control Connection Cables
- Equipment Anchors and Complete Set of Mounting Fasteners
- Product Manual and Factory Inspection Report
Packaging and Shipping
Certification
FAQ
Can the rotation speed be adjusted?
It comes standard with a VFD (Variable Frequency Drive) system, offering stepless speed control for smooth operation without any deviation.
Will the rollers scratch the workpiece's painted surface?
It utilizes high-elasticity PU rollers that provide cushioning and slip resistance, ensuring no damage to the cylinder's surface or paintwork.
Can it be integrated with a submerged arc welding machine?
Yes, it is compatible with various welding processes-such as submerged arc welding and gas-shielded welding-allowing for synchronized start-and-stop operations to achieve automated circumferential welding.
Is a special foundation required for installation?
A standard, level, and hardened floor is sufficient; the unit can be put into operation simply by positioning and leveling it on the ground.
Get the specific size quotation for Lemar welding roller frames
📧 email: Alicehe@lemarmachinecom
📱 WhatsApp/wechat: +8613033501136
🌐 official website: www.lemarmachine.com
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