Custom-wound coil assemblies — preformed, tape-wrapped and core-and-coil — built to your winding schedule and electrical spec under ISO 9001:2015, from the same shop that builds the tank and the cabinet.
Most fabricators stop at the metal. FabTek also winds: custom coil assemblies, tape-wrapped windings, preformed coils and core-and-coil sub-assemblies for transformer and electrical equipment OEMs, wound and assembled in-house at our Hazlehurst, Mississippi plants. That is what lets a transformer OEM buy the tank, the cabinet and the winding from one supplier — and what lets a switchgear or electrical OEM buy a wired, wound sub-assembly rather than three components from three vendors.
Windings are built to your winding schedule and electrical specification — copper or aluminum conductor, round or rectangular, turns and taps, insulation system, tape wrap and impregnation — with impregnation and electrical testing (turns ratio, resistance, insulation) done in-house to the test plan you require. Our contract coil winding guide covers when outsourcing winding makes sense and what to verify in a supplier.
Layer- and disc-wound coils with specified insulation systems and tape wrap, for distribution and specialty transformers.
Preformed and shaped coils to your form and conductor specification, in copper or aluminum.
Wound coils assembled onto customer-supplied or specified cores, with clamping and lead dress to print.
Coils integrated with leads, terminal boards and harnesses through our electrical assembly group.
Distribution and specialty transformer OEMs, transformer remanufacturers and repair shops, switchgear and electrical equipment OEMs needing wound components, and any program where the labor bottleneck — not the material — is what's holding output. Our analysis of the transformer shortage as a winding-workforce story explains why that bottleneck is real.
| Coil types | Layer, disc, tape-wrapped, preformed; core-and-coil sub-assemblies |
|---|---|
| Conductor | Copper and aluminum; round and rectangular; sized to your winding schedule |
| Insulation | Per customer specification — paper, Nomex, tape systems; impregnation in-house |
| Testing | In-house, in-process and final per customer test plan — turns ratio, resistance, insulation |
| Quality | ISO 9001:2015; documented SOPs; full traceability |
| Volume | Program and spot work; dedicated winding cells for recurring programs |
| Also specified as | Coil assemblies, winding assemblies, custom windings and assembly, tape-wrapped coils, transformer coils, preformed windings, core-coil assembly, contract coil winding |
Representative capabilities — exact ranges, ratings, and finishes are confirmed per project. Send drawings for a firm quote.
A tank, a cabinet and a winding from one supplier means one ISO 9001:2015 system, one traceability chain and one delivery schedule — and it means the winding shows up fitted to the tank it was designed for. Our guide to single-source metal and electrical lead times shows where the time comes out.
Built at four production sites in Hazlehurst, Mississippi.
ISO 9001:2015 quality management, AWS-certified welding, OSHA-compliant facilities.
In-house powder coat backed by an IEEE 2000-hour salt-spray certification.
Reserved-line capacity and the automation to grow with your volume.
Yes — custom coil assemblies, tape-wrapped windings, preformed coils and core-and-coil sub-assemblies, wound and assembled in-house under ISO 9001:2015 at our Hazlehurst, Mississippi plants.
FabTek winds coils and builds the tanks and cabinets around them as a single domestic source for transformer OEMs and remanufacturers.
To your winding schedule and electrical specification; design authority stays with the OEM.
Yes — with leads, terminal boards and harnesses installed through our electrical assembly group, or fitted into a FabTek-built tank.
Explore related lines: Coils & windings · Transformer tanks · Electrical assembly · Transformer OEMs
Further reading: Contract coil winding: when to outsource · The transformer shortage is a winding-workforce story · Single-source metal + electrical
Send the winding schedule and quantities — we'll quote the coil, and the tank and cabinet if you want one source.