20T-welding-rotaotor-for-tank

This 20-ton self-adjustable welding rotator is a high-performance auxiliary welding equipment independently developed by LEMAR MACHINERY for cylindrical workpiece assembly and welding. It is widely used in industries such as boilers, pressure vessels, pipelines, and wind tower manufacturing. The system consists of one active frame and one passive frame, automatically adjusting the roller angle according to the workpiece diameter to ensure uniform force on the cylinder. The four-wheel drive system driven by dual motors ensures stable rotation, while the frequency conversion speed regulation system provides stepless speed adjustment for optimal welding conditions.

Introduce the materials and functions of different parts of the product respectively

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Pu Wheels

All the rubber wheels arepolyurethane wheels,which do not delaminate and have ahigh cost-performance ratio

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Copper Wire Motor

The motor is a copperwire motor, and frequency conversion also increasesthe service life of the electronic control system

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Machine Rack

All the machine frames have beenadjusted on the planer to ensurethe stability of the machine

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Control Cabinet

Frequency conversion control box,frequency converter control, wireless remote controlto adjust the speed, range, rotation direction, etc

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If you have specific requirements for the product parameters, you can also contact us for customization

Ⅰ.Core Advantages

Strong Rated Load CapacityRated load capacity up to 20 tons, with an integrated heavy-duty steel plate welded frame that ensures uniform stress distribution. The structure is engineered for long-term full-load operation without deformation, perfectly suited for heavy cylindrical workpieces.

Precise and Stable Speed ControlEquipped with VFD stepless speed regulation, offering an infinitely adjustable linear speed range of 100–1000mm/min. The start-stop operation is shock-free, with a speed error controlled within ±1%, ensuring consistent weld seam formation.

Powerful Drive Without SlippageFeatures a 2×0.75kW dual-motor four-wheel drive system, increasing transmission torque by 30%. The steel-core, high-density PU rollers provide high friction, ensuring stable rotation without slipping or axial drifting even under a full 20-ton load.

High Safety Protection LevelThe entire electrical system has an IP54 protection rating, making it dustproof and water-resistant against workshop conditions. It features overload protection and an emergency stop function with a braking time of less than 0.5 seconds, significantly reducing operational risks.

Significant Improvement in Work EfficiencyReplaces manual turning and assembly work, boosting overall welding efficiency by 40%–60%. A single production line can reduce labor costs by 2–3 workers, making it ideal for standardized, mass production.

1. Heavy-duty Integrated Welded Structure Built with thick integral welded steel frame, rated for 20 tons load. Rigid integrated structure ensures no deformation under long-term full-load operation with stable overall structure.

2. Automatic Diameter Adaptation Mechanism Self-adjusting roller structure automatically adapts to workpiece diameters of 550mm-4300mm. No manual adjustment required to fit different cylinder sizes.

3. High-precision VFD Speed Regulation System Adopts VFD stepless speed control with linear speed 100-1000mm/min. Speed deviation within ±1%, achieving shock-free start, stop and stable constant-speed running.

4. Dual-motor Four-wheel Drive Configuration Equipped with 2×0.75kW motors and four-wheel linkage drive. 25mm thick steel-core PU rollers deliver high friction and wear resistance for stable heavy-load rotation.

5. Standard Industrial Safety Electric Configuration IP54 industrial-grade electric components resist dust and welding slag. Built-in overload protection and 0.5s fast emergency braking ensures safe workshop operation.

1. Pressure Vessel & Boiler Industry : Suitable for circumferential seam welding and assembly of industrial boilers, pressure vessels and tank cylinders. .

2. Petrochemical & Pipeline Engineering : Ideal for welding and prefabrication of large-diameter industrial pipes and chemical storage tanks.

3. New Energy & Wind Power Industry : Applicable for processing and welding of small and medium-sized wind tower poles and energy storage tanks.

4. Hardware & Environmental Protection Equipmen : Supports welding, polishing and spraying of stainless steel tanks, filter barrels and environmental protection cylinders.

5. General Cylindrical Workpiece Processing : Covers assembly, welding, grinding and surface treatment of all kinds of heavy cylindrical rotary workpieces.

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1. Professional Technical Support : Provide lifelong free technical consultation and online guidance. Professional engineers offer remote debugging and operation training to solve equipment operation problems efficiently.

2. Standard Warranty Service : The whole machine enjoys 1-year warranty, core motor and electric components support 2-year quality guarantee. Free repair and replacement for quality problems within warranty period.

3. Fast Spare Parts Supply : All wearing parts and standard accessories are in stock, providing low-cost spare parts supply all year round, shorten equipment maintenance downtime.

4. Global After-sales Response : 24/7 online after-sales team, reply to customer feedback within 2 hours. Support overseas door-to-door maintenance service for special working conditions.

5. Long-term After-sales Maintenance : Provide lifelong paid maintenance and equipment upgrade services after warranty expiration, ensure long-term stable operation of the welding rotator.

1. Standard Export Packaging : Main frame packed with waterproof tarpaulin and plastic film. Spare parts and electric components adopt

fumigation-free export wooden case packaging, anti-rust, dustproof and shock-resistant for long-distance ocean transportation.

2. Complete Packing List : Equipped with complete operation manuals, circuit diagrams, certification documents and wearing parts. All goods are fully inspected before packaging to avoid missing accessories.

3. Flexible Delivery Term : Support FOB, CIF, CFR and other international trade terms. Cooperate with stable forwarders to provide global sea and air shipping services.

4. Short Lead Time : Standard 20T welding rotator has sufficient stock. Delivery within 7-15 working days after receiving customer deposit.

5. Professional Loading Service : Professional team completes container loading and fixing. Scientific stacking prevents equipment collision and deformation during transit.

01.What cylinder diameter is the 20T welding rotator suitable for?

This self-adjustable welding rotator fits workpiece diameters from 500mm to 3500mm. The roller angle adjusts automatically to match different cylinder sizes without manual modification.

02.Can this equipment work with stainless steel workpieces?

Yes. Adopting thickened high-density PU rollers, it will not scratch or damage polished, painted and stainless steel workpiece surfaces during rotation.

03.What welding methods are compatible with the rotator?

It supports multiple welding processes, including submerged arc welding, MIG, TIG welding, as well as workpiece polishing, assembling and spraying auxiliary processing.

04.How long is the equipment warranty period?

The whole machine enjoys a 1-year warranty, and core motors and electrical components come with a 2-year warranty. We provide lifelong paid maintenance and free technical support.

05.Is the speed adjustable during equipment operation?

Absolutely. Equipped with VFD stepless speed regulation system, the linear speed ranges from 100mm/min to 1000mm/min, with stable speed and no shock during speed adjustment.

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