heavy duty transformer winding machine
Heavy-duty transformer winding machines are industrial equipment used for winding large power transformers of 110kV and above, as well as other heavy electromagnetic coils. Compared with ordinary transformer winding machine, heavy-duty coil winding machines mainly handle coils with thick wire diameter, heavy weight, and large volume (such as multiple flat copper wires wound in parallel or large-width copper/aluminum foil), which places extremely high demands on the spindle’s ultra-high load-bearing capacity and high torque output.

BEST™ heavy duty winding machine
As a leading manufacturer of heavy-duty transformer winding machines, BEST™ understands that in heavy-duty coil winding operations, equipment deformation, uneven tension, or misaligned wires can lead to fatal scrap rates. Our heavy-duty coil winding machines are deeply optimized from mechanical structure to electrical control systems, specifically designed to handle the complex conditions of thick wire diameters, heavy weights, and multi-strand windings. BEST™ heavy-duty transformer winding machine ensure micron-level operational precision even under extremely high loads, providing impeccable smoothness and accuracy for your heavy-duty coil windings.
features
BEST™ heavy-duty transformer winding machine is equipped with a high-power geared motor and a precision frequency conversion control system. Even at low speeds during startup and operation, the spindle can generate extremely high rotational torque, easily overcoming the enormous bending resistance when winding or repositioning multiple large-section flat wires. The frame is constructed from high-strength heavy-duty steel plates and undergoes rigorous secondary aging annealing treatment, ensuring unwavering stability even when bearing the high-speed rotation of tens of tons of coils, guaranteeing extremely high concentricity and centering accuracy.
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Superior spindle torque and low-speed stability
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Heavy-duty, high-rigidity annealing bed
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High-dynamic constant tension closed-loop control system
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Intelligent human-machine interaction and recipe memory
Technical parameters
| Model | WR-5 | WR-10 | WR-15 | WR-20 | WR-30 |
| Max. Loading | 5tons | 10tons | 15tons | 20tons | 30tons |
| Spindle speed | 0-30r/min | 0-15r/min | 0-10r/min | 0-10r/min | 0-10r/min |
| Max. radial height | 1100mm | 1400mm | 1600mm | 1800mm | 2200mm |
| Max. Axial length | 1000-2500mm | 1500-3500mm | 1500-3800mm | 2500-4000mm | 2500-4500mm |
| Power | 11kW | 15kW | 18kW | 22kW | 38kW |
Non-standard support
The above-mentioned models are standard equipment. Our team can modularly expand the standard equipment based on specific transformer coil winding processes and production line efficiency requirements to achieve flexible non-standard customization, so as to meet the stringent conditions of non-standard customization of high voltage wire windings for different transformer manufacturers.
Optional upgrades
- Servo Active Pay-off Stand
- Servo-driven active constant tension control
- Radial clamping system
- Automatic pneumatic striking device
- Hydraulic lifting operating platform
- Customized adjustable expansion and contraction mandrel
- Recipe storage and production data export
- Remote operation and maintenance and (IoT)
- Multi-language user interface
WhatsApp us +86-15552598879 for technical support or customization.
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About us
BEST™, founded by Fan Yuxue in 2005, is dedicated to providing professional wire-winding and foil-winding technology solutions for global power transformer manufacturers. Our technical team works closely with transformer manufacturers in different regions around the world, and can modularly expand standardized equipment according to customers’ specific products and manufacturing processes to meet the non-standard customization needs of more transformer manufacturers.

BEST™
To date, leading transformer manufacturers from 46 countries and regions worldwide (including the United States, Canada, Mexico, Brazil, Turkey, Italy, Vietnam, Thailand, the Philippines, and Indonesia) have chosen BEST™ transformer winding machines. Xu Shaofeng, Senior Vice President of Schneider Electric, has repeatedly commented that “BEST™ is Schneider Electric’s best partner in China. BEST™ played a crucial role in the upgrading and commissioning of Schneider Electric’s largest transformer production base globally.”
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“Not just a transformer winding machine, but zero-defect coil winding guaranteed.”

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