What is a 20-ton pipe welding rotator?
20T: This refers to the rotator's rated load capacity of 20 metric tons (20,000 kg). This is a key specification, indicating that the equipment is designed for welding or rotating very large and heavy cylindrical workpieces, such as large pressure vessels, wind turbine towers, and chemical tanks.
Self-adjusting: This stands for "self-adjusting" or "adaptive." This is a key difference from traditional "adjustable" or "fixed" rotators. It means the center distance between the two pairs of rollers can automatically adjust to accommodate workpieces of varying diameters, eliminating the need for tedious manual mechanical adjustments.
Roller: A specialized process equipment used to support and rotate round workpieces during welding, assembly, and inspection.
product key technologies

Frame: A sturdy steel structure designed to withstand a load of 20 tons welding rotators without deformation.
Drive Motor: Typically an AC motor or variable-frequency motor provides the rotational power.
Reducer: Converts the motor's high-speed rotation into the low-speed, high-torque output required by the rollers.
.
Self-adjusting: Typically driven by a worm gear mechanism or servo motor, automatically moves the roller mounts and adjusts the distance between the two rollers in response to control system commands.
Rollers: Typically steel wheels coated with wear-resistant rubber or polyurethane to increase friction and protect the workpiece surface. The rollers themselves can also be tilted for better alignment with the workpiece.

Products Specification
|
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*7.5 |
||




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