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Magnafield AC Electromagnetic Yoke | 230V 50/60-Hz
Portable, High-Performance Surface Crack Detection
The Magnafield AC Yoke is a rugged, handheld electromagnetic induction device designed for the rapid detection of surface-breaking discontinuities in ferromagnetic materials. Engineered to withstand the rigors of field use in oil & gas, shipbuilding, and structural fabrication, this 230V model is specifically configured for international power standards. Its articulating legs allow for precise contact on complex geometries, ensuring a consistent magnetic field for reliable flaw detection.
High Lifting Power: Engineered to exceed the standard lift test requirements, providing a powerful AC magnetic field to reveal tight fatigue cracks and stress corrosion.
Articulating Double-Jointed Legs: The legs adjust easily to any contour, making it possible to inspect pipe welds, inside corners, and irregular castings with 100% contact.
Ergonomic Trigger Design: Features a heavy-duty, moisture-sealed switch designed for ease of use even while wearing thick welding or safety gloves.
230V Global Compatibility: Optimized for 230V 50/60-Hz operation, making it ideal for offshore rigs, international shipyards, and European or Middle Eastern infrastructure projects.
Field-Replaceable Components: Designed for easy maintenance, including a replaceable power cord and switch assembly to minimize downtime in the field.
Technical Specifications & Compliance
| Feature | Specification |
| Power Supply | 230V AC, 50/60-Hz |
| Lifting Capacity | > 10 lbs (4.5 kg) @ 100-150 mm spacing |
| Duty Cycle | 50% (Max ON time 2 mins) |
| Leg Span | 0 – 300 mm (0 – 12 in) |
| Weight | ~3.2 kg ($7.0$ lbs) |
| Cable Length | 3 Meters (9.8 ft) |
Standard Compliance
This unit is fully compliant with international NDT standards for electromagnetic testing:
ASTM E709: Standard Guide for Magnetic Particle Testing.
ASTM E1444: Standard Practice for Magnetic Particle Testing.
ASME Section V Article 7: Non-Destructive Examination.
Ideal Applications
In-Service Inspection: Detecting fatigue cracks in cranes, bridges, and pressure vessels.
Weld Inspection: Surface checking of structural welds in fabrication shops.
Foundries: Identifying surface laps and cold shuts in ferromagnetic castings.
Automotive: Testing forged components such as crankshafts and steering knuckles.
