WS Series Pulsed DC End Area Coils Drillco Style

WS Series Pulsed DC End Area Coils Drillco Style


The WS Series coils are powerful yet extremely light and meet many applicable specifications. Features the innovative Capacitive Discharge Power Supply, a unique power supply that provides the necessary energy pulse to provide an output of 1,200 Amp Turns per inch of ID and more specifically greater than 400 Gauss in the Center of the Coil. These outputs are common to all four models: WS-8, WS-10, WS-12 and WS-14 (8", 10", 12" and 14" respectively), while all remain under 20 pounds (9kg). WS-Coils are commonly called Drillco (Drill Pipe Coils), where the drill pipe is rarely demagnetized. Drill Pipe Coils pulse about once per second and induce a very high residual magnetic field into the workpiece.


  • 4 ID sizes: 8" (203mm), 10" (254mm), 12" (305mm), and 14" (356mm)
  • 21,000 Amp Turns, 1,125 Gauss on 8" model
  • Diameter Range of 2 3/8" to 13 3/8" End Areas
  • Meets Output requirements of DS1 and NS-2
  • CD pulse rate of 1 Pulse per second
  • Innovative Capacitive Discharge Power Supply
  • WS type Coils are not offered with AC or Demag Features

Technical Specifications

WS Series Coils Specifications

Model Size Amp Turns Gauss Weight
WS-8 8" (203mm) 21,000 1,125 14 lbs. (3.7kg)
WS-10 10" (254mm) 18,000 800 15.5 lbs. (7kg)
WS-12 12" (305mm) 17,000 620 17 lbs. (7.7kg)
WS-14 14" (356mm) 16,000 470 19 lbs. (8.5kg)
Description Part # Saved Price Select Option Add to
Western Instruments WS-8 8" (203mm) Pulsed DC End Area Coils - 21,000 Amp Turns MT-WI-WS-8 Request Pricing
Western Instruments WS-10 10" (254mm) Pulsed DC End Area Coils - 18,000 Amp Turns MT-WI-WS-10 Request Pricing
Western Instruments WS-12 12" (305mm) Pulsed DC End Area Coils - 17,000 Amp Turns MT-WI-WS-12 Request Pricing
Western Instruments WS-14 14" (356mm) Pulsed DC End Area Coils - 16,000 Amp Turns MT-WI-WS-14 Request Pricing
Western Instruments Water Resistant Foot Switch MT-WI-WRFS Request Pricing