Division 01 · Precision engineering since day one

Fine Wire Winding.

Precision coil winding is where Supplar began — and it remains the technical core of our business. From 29 SWG through to hair-fine 52 SWG, our multi-spindle, AC servo-driven machines deliver the repeatable accuracy that relay, solenoid, sensor and ignition-coil applications demand.

What we wind

Coils wound to your spec.

From single-spindle prototypes to multi-spindle production runs, each coil is wound turn by turn on AC servo-driven lines and electrically tested in-house — 29 SWG through to hair-fine 52 SWG.

See wound components →

29 – 52 SWGGauge range

Multi-SpindleAutomatic winding

AC ServoRepeatable precision

In-HouseElectrical testing

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Wound Components

What we build, live.

Switch between component families — each is wound turn by turn on the same servo-driven lines.

Pick-up coils
Relay coils
Solenoid coils
Transformer coils
Pump windings

Racks of enamelled copper wire spools across a range of gauges

Wire Gauge Range

29 SWG down to hair-fine 52 SWG.

Our winding lines handle an exceptionally wide range of fine copper wire on the Standard Wire Gauge (SWG) scale.

29≈ 0.345 mm

36≈ 0.193 mm

44≈ 0.081 mm

52< 0.02 mm

CoarserFiner

SWG (Standard Wire Gauge) figures are industry-reference values shown for scale; exact tolerances are confirmed at order stage.

Wound coil finished with mounting bracket and lead-wire harness

Winding Meets Harness

Wound and wired as one part.

Many of our coils leave the floor as finished sub-assemblies — the winding and its lead-wire harness built together in-house, terminated to the connector and ready to fit straight into the application.

Winding Machinery

Servo accuracy, automated.

Automatic multi-spindle coil winding machines produce linear-wound coils — relay, solenoid, rotor and contactor coils, ferrite-core transformers and ignition coils.

Multi-axis movement executes terminal wrapping, wire routing and wire gripping & cutting automatically, combining mechanical, pneumatic and electronic systems for high, repeatable performance.

AC Servo AxesPrecise multi-axis motion for repeatable winding accuracy across the full gauge range.
Automatic TwistingFully automatic rebound-structure twister for intricate winding patterns.
Wide Coil TypesRelay, solenoid, rotor and contactor coils, ferrite-core transformers, ignition coils.

Testing Instruments