TWM 42 N

Electromagnetic Yoke

Our TWM yokes are the perfect mobile crack detection units, particularly for checking ferromagnetic parts where burn marks and annealing must not occur. These durable AC electromagnetic yokes are designed to detect surface indications.

The TWM 42 N operates at 42 V supplied from a separate transformer which is connected to a 230 V AC supply. This satisfies the VDE safety regulations, which means that the TWM 42 N can be used for testing inside vessels, tubes and closed containers.

Category: Tag:
  • Lightweight ergonomic design.
  • Durable rugged construction.
  • Oil and abrasion resistant.
  • NDT Type: Magnetic Particle Testing
  • Ideal Application: Field testing, In-service inspections, Spot inspections, Testing inside vessels, tubes and closed containers, Weld inspection.

  • Defect Examples: Fatigue cracks, Grinding cracks, Quenching cracks, Seams, Shrink cracks, Tears.


Standards: DIN EN ISO 9934-3:2002, DIN VDE 0100-410:2007, DIN VDE 0100-540:2012, EN 60204-1:2006

Additional information


25 Litres, 200 Litres