WA Series AC Magnetizing Coils

WA Series AC Magnetizing Coils


WA-Series can best be described as light duty and portable MPI Magnetizing Coils. No matter which ID Size, WA-Series Coils have an AC Output of over 4000 Amp Turns on a 115 Volt/60 Hertz Power and over 5000 Amp Turns with 230 Volt/50 Hertz Power. The 4 models of WA-Series Coils are the WA-8, WA-10, WA-12 and WA-14, with respective ID sizes of 8" (203mm), 10" (254mm), 12" (305mm), and 14" (356mm). Very economically priced. AC Coils are effective for finding surface breaking defects on work pieces with little wear, but where stress results in high load concentrations that in turn can result in component failure. Note the AC field does not penetrate the surface of the workpiece, this is called “skin effect”.


  • Four ID sizes: 8” (203mm), 10” (254mm), 12” (305mm) and 14” (356mm)
  • 4000 Amp Turns at 115VAC / 60Hz
  • Great for detecting surface and near surface cracks, seams, etc.
  • All cords are high-quality cable standard SOOWXTREM H07RN-F
  • All Coils Come with an Energize Button - Foot Switch Options are Available for an Additional Cost (Not WS Series).
  • Both the Energize Button and optional Foot Switch activate the AC Module, which handles the full electrical load of the WA-Series Coils. The amperage capacity of these modules far exceeds the requirements of the Coil, which give the Foot Switch and Energize Button extended life

Technical Specifications

WA Series Specifications

Model ID Size 115V/60Hz 230V/50HZ Output Coil Weight
WA-8 8” /201 mm 13 Amps 6.5 Amps 4,250 14 pounds (6.8kg)
WA-10 10” /254 mm 15 Amps 8 Amps 4,150 16 pounds (7.7kg)
WA-12 12” /305 mm 16 Amps 9 Amps 4,050 18 pounds (8.6kg)
WA-14 14” /355 mm 16 Amps 9 Amps 3,875 22 pounds (10.5kg)


All Coils are 3 ⅝” (22mm) Wide

Kit Includes

WA Series Coils Includes

  • Coil
  • Power Cord, 8' (2.5m) long
  • Energize Button on coil



  • Foot Switch, 5' (1.5m) long
    • If Foot Switch is required, it must be ordered at checkout for an additional cost


Note: Cords are SOOWXTREM H07RN-F, a high-quality cable standard

ExWorks - Canada. Freight quote can be provided upon request.

Description Part # Saved Price Select Option Add to
Western Instruments WA-8 AC Magnetizing Coil with Energize Button MT-WI-WA-8 Request Pricing
Western Instruments WA-10 AC Magnetizing Coil with Energize Button MT-WI-WA-10 Request Pricing
Western Instruments WA-12 AC Magnetizing Coil with Energize Button MT-WI-WA-12 Request Pricing
Western Instruments WA-14 AC Magnetizing Coils with Energize Button MT-WI-WA-14 Request Pricing
Western Instruments Coil Foot Switch Option - Standard MT-WI-FS Request Pricing
Western Instruments Removable Coil Foot Switch MT-WI-RFS Request Pricing
Western Instruments Water Resistant Coil Foot Switch MT-WI-WRFS Request Pricing