Description
JAY Electromagnetic Yoke – A Rugged, Field-Proven MPI Tool
The JAY Electromagnetic Yoke is a trusted choice among NDT professionals for conducting magnetic particle inspection (MPI) in both laboratory and field settings. Known for its excellent balance of durability, ease of use, and inspection performance, the JAY yoke is built for technicians who demand reliability under pressure.
Designed for heavy-duty use, the JAY features an encapsulated core housed in a tough, impact- and abrasion-resistant polymer shell. This rugged construction ensures long service life, even in challenging environments where frequent handling, vibration, and rough surfaces are common.
Built for Performance and Practicality
The yoke is available in 230V and 110V AC versions, offering flexibility for various regional power systems and job site conditions. Despite its solid build, it remains relatively lightweight and compact, allowing technicians to carry out inspections with minimal fatigue.
The JAY yoke delivers strong and consistent magnetic fields with a lifting power of over 4.5 kg, enabling effective detection of surface-breaking cracks, seams, laps, and inclusions in ferromagnetic materials. Its pole spacing range of 50–210 mm provides adaptability for inspecting components of different sizes and geometries.
Safety First
A key feature of the JAY yoke is its built-in thermal protection system, which includes a self-resetting thermal cut-out. This safety measure helps prevent damage from overheating due to extended or improper use, ensuring the tool remains safe and operational in the long run.
The unit operates on a 25% duty cycle, with a maximum “ON” time of 30 seconds, making it suitable for both high-volume inspections and spot checks.
Maintenance-Friendly and Upgradable
Maintenance is straightforward thanks to the availability of replacement parts, including:
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Complete leg assemblies
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Foot sections
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Micro switches and switch covers
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Rubber membranes
This modularity extends the lifespan of the tool and reduces downtime when servicing is needed.
An optional integrated inspection light can be added for use in dimly lit environments, helping operators see magnetic indications more clearly between the poles.
Designed for the Real World
Rated to IP56, the JAY yoke offers protection against dust and moisture, making it suitable for tough field environments such as offshore, rail, construction, or heavy manufacturing. It’s also supplied with a protective canvas carrying case for easy transport and storage.
Whether you’re conducting non-destructive testing in the workshop or out in the field, the JAY Electromagnetic Yoke is a dependable, technician-approved tool that delivers performance when it matters most.
Product Data
| Model | JAY – 230V | JAY – 110V |
| Input Supply (Unloaded) |
230VAC @ 1.9A | 110VAC @ 3.7A |
| Voltage Regulation | ±10% of nominal | ±10% of nominal |
| Frequency | 50 / 60 Hz | 50 / 60 Hz |
| Waveform | AC | AC |
| Switch Position | Trigger Mounted | Trigger Mounted |
| Recommended Pole Spacing | 150mm | 150mm |
| Pole Spacing Range | 50 to 210mm | 50 to 210mm |
| Leg / Pole Contact Size | 25 x 25mm | 25 x 25mm |
| Duty Cycle | 25% – Max. ON time 30 seconds | 25% – Max. ON time 30 seconds |
| Lift Strength (100 to 150mm spacing) |
> 4.5 kg (Equivalent to 44 N) |
> 4.5 kg (Equivalent to 44 N) |
| Magnetic Field* | > 2.5 kA/m @ 6 inch / 152mm spacing |
> 2.5 kA/m @ 6 inch / 152mm spacing |
| Dimensions (LWH) | 230 x 60 x 180mm | 230 x 60 x 180mm |
| Weight | 3.25 kg | 3.25 kg |
| Ingress Protection | IP56 | IP56 |
| Mains Lead | 4 Meters | 4 Meters |
| Plug Type | ‘C’ Form – 16A | ‘C’ Form – 16A |
| Warranty | 12 Months | 12 Months |
| Conformity | UKCA CE RoHS |
UKCA CE RoHS |
| Specification Compliance
(List is not exhaustive) |
ISO 9934: 2016 ASTM E 1444-22a ASTM E 709-21 ASTM E3024-22a |
ISO 9934: 2016 ASTM E 1444-22a ASTM E 709-21 ASTM E3024-22a |
| Powerbelt Compatibility | No | Yes |
