TRANFOVIA(NINGBO) EQUIPMENT TECHNOLOGY CO.,LTD

Tension Pay-Off Stand for Transformer Coil Winding

Transformer winding tension pay-off stand with adjustable reverse torque, 600 mm axial travel and automatic base movement for compact, consistent coils.

Product Overview

The tension pay-off stand is an auxiliary device designed to regulate conductor feeding during transformer coil winding. By applying adjustable reverse torque, it helps prevent reel overrun, loose wire, and back-running when the winding spindle slows, stops, or changes direction.

Main Function
Wire tension control
Base Travel
600 mm
Adjustment Range
0-100 N·m
System Power
0.9 kW
Base Movement
Automatic axial travel
Compatible Use
Transformer coil winding

Its mobile base travels automatically along the winding axis, keeping the conductor supply position aligned with the developing coil. This reduces manual correction, supports smoother wire placement, and helps produce a more compact and consistent coil structure.

What Winding Problems Does It Address?

  • Loose wire or back-running when the winding machine brakes.
  • Changing conductor tension as the supply reel diameter decreases.
  • Manual repositioning of the payoff unit during axial winding.
  • Uneven wire delivery that affects coil compactness.
  • Excessive operator intervention during start, stop and direction changes.

Key Features and Production Benefits

  1. Adjustable Reverse Torque The setting can be adjusted according to the winding process and maintained during operation, helping stabilize conductor delivery across the winding cycle.
  2. Brake Compensation Continuous reverse torque counters reel overrun when the main winding machine brakes, reducing the risk of loose wire and wire back-running.
  3. Automatic Axial Wire Following The wire bundle can move along the coil axis during winding, supporting more accurate conductor placement on long coils.
  4. Motorized Base Movement The stand base travels automatically along the winding-machine axis. The catalogue lists a movement distance of 600 mm.
  5. More Compact Coil Structure Controlled wire delivery can help reduce slack between turns and improve the compactness of the finished transformer coil.
  6. Low Installed Power The stated system power is 0.9 kW, which simplifies workshop utility planning for this auxiliary unit.
  7. Potential Material Optimization The catalogue reports user feedback indicating a copper-wire saving of approximately 1.5-2 kg on a 1,000 kVA coil. This should be presented as a reported application case, not a guaranteed saving for every coil.

Typical Applications

  • Transformer coil winding lines using round or bundled wire conductors.
  • Horizontal winding machines that require controlled wire payoff and axial following.
  • HV and LV coil processes where reel overrun can create loose conductor during braking.
  • Production of long coils that require the payoff position to move along the winding axis.
  • Transformer factories seeking to improve coil compactness without replacing the main winding machine.

Technical Parameters

Parameter Unit Catalogue Value
Base movement distance mm 600
Adjustment range N·m 0-100, freely adjustable
System power kW 0.9
Base movement mode Automatic axial movement
Primary function Tension / reverse-torque control during winding

How to Select the Right Pay-Off Stand

For technical evaluation and quotation, provide:

  • Conductor type, number of wires and individual wire dimensions.
  • Maximum reel weight, reel outside diameter, width and shaft bore.
  • Required winding tension or reverse-torque range.
  • Maximum winding speed and braking frequency.
  • Coil axial length and required payoff travel.
  • Winding-machine center height and workshop layout.
  • Required communication or interlocking with the winding-machine control system.
  • Power supply, guarding and acceptance-test requirements.

FAQ

  1. What is the main function of a tension pay-off stand?

It supplies conductor to the winding machine under an adjustable reverse-torque setting, helping stabilize wire delivery and reduce loose wire during braking.

  1. Is this product a transformer winding machine?

No. It is auxiliary equipment used together with a transformer coil winding machine. It controls conductor payoff rather than rotating and forming the coil by itself.

  1. Why does the base move along the winding axis?

Axial movement allows the conductor supply position to follow the coil during winding, reducing the angle and lateral pull on the wire.

  1. How does it reduce wire reversal or reel overrun?

The stand continuously applies reverse torque. When the main machine slows or brakes, this torque helps stop the supply reel from continuing to release wire.

  1. . Can it be used with any winding machine?

Compatibility depends on center height, axial travel, winding speed, reel dimensions, control interface and workshop layout.

 

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