Wuxi Lemar Machinery Equipments Co., Ltd.
                                                                                                           
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21 Years
Since 2005
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Self‑Aligning 20 Ton Welding Rotator for Wind Tower and Storage Tank Production

Price Negotiable
Price: 500-1000USD
MOQ: 1
Delivery Time: 10-20 work days
Brand: WUXI LEMAR
Product Description
Self-Aligning 20 Ton Welding Rotator for Wind Tower and Storage Tank Production
Product Overview

This self-aligning welding rotator is engineered for heavy cylindrical workpieces in pressure-vessel and tank workshops. Roller sets automatically adjust angles to match shell diameter without manual repositioning. The heavy-duty base and PU roller assembly deliver steady circumferential rotation, eliminating workpiece slipping and bounce during long production shifts. Works well paired with column-boom welding systems for seamless automatic circumferential seam welding.

Key Features
  • Self-aligning roller structure automatically adjusts to fit different shell diameters, saving manual adjustment time
  • Thick welded base frame with dual-motor driving unit and frequency converter provides stable low-speed torque for heavy shell rotation
  • High-strength PU covered rollers with high friction coefficient protect outer surfaces of carbon steel and stainless-steel shells
  • Continuous stepless speed regulation matches rotation speed to welding travel speed for consistent circumferential weld quality
  • Built-in overload protection and emergency stop function with reserved signal interface to synchronize with welding manipulator
Technical Parameters
Item Specification
Rated Load 20 Ton
Workpiece Diameter 500-4500 mm
Roller Size Φ350×210 mm
Rotation Speed 6-60 m/h
Drive Type Dual-motor drive
Speed Control Variable-frequency stepless adjustment
Roller Material Polyurethane coating
Control Mode Local control cabinet + remote pendant
Working Voltage Customizable for local grid
Automation Interface Support manipulator linkage
Application Fields
  • Pressure vessel manufacturing: circumferential seam welding for boiler shells, reaction tanks and storage vessels
  • Large tank production: oil tanks, water tanks and chemical tank body assembling and welding
  • Wind power accessory processing: cylindrical wind tower segment circular welding
  • Heavy pipe fabrication: large-diameter thick-wall pipe spool rotation and butt-welding
  • Heavy workshop automated production: cooperate with welding manipulator to build full-automatic cylindrical welding station

Matching Recommendation
  • Pair with column and boom welding manipulator to realize automatic circular seam welding for cylindrical shells
  • Combine with submerged-arc welding power source to build a full-set circumferential welding workstation
  • Add extra idler units according to shell length for auxiliary supporting
  • Prevent shell deflection and deformation by increasing quantity of idle roller groups
  • Realize coordinated operation of whole workstation for heavy tank batch production

Custom Options
  • Hydraulic height adjustment for flexible workpiece horizontal calibration
  • Steel roller replacement for high-temperature and heavy-duty working conditions
  • Reinforced anti-eccentricity structure for workpieces with large offset gravity
  • Special voltage and frequency conversion to fit different local power grids
  • Customized idler sets specially designed for super-long cylindrical shells
Frequently Asked Questions
What diameter range of cylindrical shells can this 20 ton self-aligning welding rotator handle?
Suitable for workpiece diameter from 500 mm to 4500 mm. Rollers adjust automatically without manual modification.
Is continuous full-load operation available for tank mass production?
Yes. Reinforced frame and dual-motor drive support long-time non-stop heavy-load running in-house.
Can this rotator work synchronously with column-boom welding manipulator?
Synchronous signal interface is reserved, it can realize linkage with welding manipulator for automatic circular seam welding.
What should I do if the cylindrical shell is too long and prone to deflection?
Extra auxiliary idler units can be added to provide extra support and avoid shell bending and deformation.
Can I change PU rollers into steel rollers for special working conditions?
Steel roller is available as custom option for high-temperature or sharp-surface workpiece welding scenarios.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Wuxi Lemar Machinery Equipments Co., Ltd.
Location 505-1 NO.8 JIEFANG WEST ROAD,LIANGXI DISTRICT,WUXI, CHINA
Contact Person Oscar

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