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Cable Type Permanent Magnetic Yoke “Western” Model WM-5C


Permanent Magnet Yokes



§  Powerful Lift

§  Completely Portable

§  Light Weight

§  Durable

§  Compact

§  Hinged Frame and Cable Type

§  No Recharging

§  Hazardous Zones



§  Automotive

§  Pressure Equipment

§  Manufacturing

§  Aerospace

§  Piping

§  Fabrication

§  Weld Inspection



Permanent Magnet Yokes

Western Instruments offers 3 models in the WM-Series of Permanent Magnet Yokes. These

models consist of both Hinged Frame and Cable Type configurations, sot the inspector’s

preference is assured. Permanent Magnet Yokes are a great convenience in Magnetic

Particle Inspection, due to their complete portability, as no electricity is required. All

WM-Series Yokes utilize Rare Earth Magnet Cartridges specifically manufactured to our

high performance needs. WM-Series Yokes lift over 60 Pounds, and with recharging not

being necessary, the minimum lift of 50 pounds (23 Kg) is assured for years.


The WM-5 and WM-5LT are Hinged Frame units, equipped with Rotating Contact Feet,

which easily permits the inspector to maximize the contact area between the Dual Contact

Surfaces on the pole pieces and the workpiece. Both of these units have field replaceable

magnet cartridges, in the unlikely event of a failure. The WM-5 is considered a Standard

Permanent Magnet Yoke, while the WM-5LT is a lighter weight alternative.


The WM-5C is our Cable Type Permanent Magnet Yoke. The Coated Cable allows a

great deal of flexibility to easily permit maximum contact area between the Non-Ferrous

contact surface and the workpiece. The Hand Grip is Ergonomically designed for operator

comfort, with provisions for easy removal off the workpiece.


All WM-Series Yokes are delivered with a Calibration Certificate and Operators Manual.




WM-5, WM-5S and WM-5C


All are >50 Pounds (23 Kg)

Field Strength with Tips in Contact:





9200 Gauss

8500 Gauss

10900 Gauss 2mm (0.80”) Air Gap

Field Strength with 2” (50mm) Air Gap:





510 Gauss

380 Gauss

5700 Gauss (Single Pole Only)

Pole Spacing:





0-14” (0-350mm)

0-14” (0-350mm)

0-24” (0-610mm)






5 Pounds (2.3 Kg)

3 Pounds (1.4 Kg)

2 Pounds (0.9 Kg)


Inspection Kits

Western offers inspection Kits for the following Methods

Dry•Wet•Wet/Dry•Wet Fluorescent

WE-5 Dry Method Inspection Kit Shown;

Yoke, Carrying Case (*), 2 Cans of Cleaner/Remover,

2 Cans White Contrast Paint, 2 Cans Black Particle,

Pie Gauge (or Field Indicator or Castrol Strips)


* Custom Soft Sided Carrying Case Illustrated


This product was added to our catalog on Wednesday 06 January, 2021.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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