Magnetic Particle Inspection
Johnson & Allen are an industry leader in Magnetic Particle Inspection (MPI), offering a range of products such as portable MPI units, yokes, and bench systems, with solutions adapted for Aerospace, Power Generation, Manufacturing, and many more. At Mason Technology, we are dedicated to providing top-tier solutions for Non-Destructive Testing (NDT).
We proudly feature Johnson & Allen’s advanced MPI equipment, setting new standards in industrial inspection. Johnson & Allen’s offerings, including their portable MPI units and yokes, are at the cutting edge of NDT technology. These systems deliver exceptional sensitivity and accuracy, with robust designs and user-friendly interfaces, making them ideal for a wide range of inspection applications. With superior detection capabilities, Johnson & Allen’s MPI equipment ensures the identification of even the smallest defects, providing reliable and accurate results. Their durable construction and ease of use make these systems invaluable in any inspection environment, from aerospace to manufacturing. Johnson & Allen’s dedication to innovation and quality shines through in every aspect of their MPI equipment, ensuring your inspection processes are both efficient and effective.
Explore the full range of Johnson & Allen MPI equipment and consumables at Mason Technology and discover how we can support your NDT needs with state-of-the-art solutions. Trust Johnson & Allen’s technology to deliver the highest standards of performance and reliability in your industrial inspections.
FEATURED PRODUCTS
MPI Equipment
Johnson & Allen are an industry leader in Magnetic Particle Inspection (MPI) equipment, offering a wide range of products for NDT purpose...
More About MPI Equipment
MPI Equipment 
Johnson & Allen are an industry leader in Magnetic Particle Inspection (MPI) equipment, offering a wide range of products for NDT purposes. Our solutions are suited for Aerospace, Power Generation, Manufacturing and many more use cases. Mason Technology is proud to supply our customers with Johnson & Allen’s MPI equipment range.
We proudly feature Johnson & Allen’s advanced MPI equipment, setting new standards in industrial inspection. Johnson & Allen’s offerings, including their portable MPI units and yokes, are at the cutting edge of NDT technology. These systems deliver exceptional sensitivity and accuracy, with robust designs and user-friendly interfaces, making them ideal for a wide range of inspection applications.
The Johnson & Allen Yoke (JAY) has been a core product in their MPI equipment range for over two decades. Manufactured in-house by Johnson & Allen the JAY has a proven track record for usability, durability and reliability. The core is encapsulated in a hard-wearing, impact and abrasion resistant polymer which makes the JAY one of the most heavy duty yokes on the NDT market. Like other Johnson & Allen yokes the JAY is fitted with a self-resetting thermal cut-out to prevent burnouts from misuse.
- Heavy Duty Construction: Encapsulated in a hard-wearing, impact and abrasion-resistant polymer.
- Self-Resetting Thermal Cut-Out: Prevents burnouts from misuse.
- Lift Tested: Supplied with a certificate of conformity.
- Voltage Options: Available in 230V and 110V versions.
- Ingress Protection: Rated IP56 for dust and water resistance.
- Pole Spacing Range: Adjustable from 50 to 210mm.
- Lift Strength: Greater than 4.5 kg (equivalent to 44 N) at 100 to 150mm spacing.
- Magnetic Field Strength: Greater than 2.5 kA/m at 152mm spacing.
- Duty Cycle: 25% with a maximum ON time of 30 seconds.
- Optional Permanently Attached Light (PAL): Provides illumination exceeding 500 Lux for enhanced visibility during inspections.
FLEXI-MAG Fully Adjustable MPI Permanent Magnet
Designed with Magnetic Particle Inspection in mind, the Flexi-Mag is comprised of two separate magnets connected via a heavy duty chain and sheathed by a protective covering. This design offers unparalleled adjustability in the plane of the magnet making even the hardest inspection areas easy for the operator.
- Great field strength to weight ratio: Uses specially developed Magnetic alloys
- Lifting weight: > 20Kg
- No keeper required
- Weighs only 1Kg
- Field: 2,700 Gauss at each pole
- Maximum effective gap between poles 150mm (Recommended)
- Each unit is individually serialised and lift tested
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MPI Consumables
Johnson & Allen are an industry leader in Magnetic Particle Inspection (MPI) equipment, offering a wide range of MPI consumables for NDT ...
More About MPI Consumables
MPI Consumables
Johnson & Allen are an industry leader in Magnetic Particle Inspection (MPI) equipment, offering a wide range of MPI consumables for NDT purposes. Our solutions are suited for Aerospace, Power Generation, Manufacturing and many more use cases. Mason Technology is proud to supply our customers with Johnson & Allen’s MPI consumables range.
NEOPAINT NPT16
- Quick-drying white contrast aid paint for Magnetic Particle Inspection (MPI).
- Produces a uniform and solid white background using high Titanium Dioxide content.
- Suitable for use with both aqueous and hydrocarbon-based consumable products.
NEOPAINT 2
- Another quick-drying white contrast aid paint designed for MPI.
- Certified to meet Sulphur and Halogen levels required by military, nuclear, and ASME standards.
- Available in 400mL aerosols and 5L bulk containers
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Paint Remover & Degreaser
NEOINDUS 1ES
- Emulsifier used in MPI to enhance the visibility of indications.
- Provides consistent and reliable results.
- Suitable for use with both water-based and solvent-based systems.
NEOINDUS 2EB
- Black magnetic ink for MPI, similar to NEOCOL B but with a different formulation.
- Offers high sensitivity and excellent particle mobility.
- Suitable for use in both wet and dry conditions.
NEOASTRA F
- Fluorescent magnetic ink for MPI, offering high visibility under UV light.
- Ensures clear and bright indications for easy detection of defects.
- Compatible with both aqueous and hydrocarbon carriers.
NEOASTRA DG
- Degreaser used for cleaning surfaces before MPI.
- Effective in removing oils, greases, and other contaminants.
- Fast-drying and leaves no residue.
NEOCOL B
- Black magnetic ink used in MPI for detecting surface and slightly subsurface discontinuities.
- Provides excellent particle mobility and high sensitivity.
- Suitable for use in both wet and dry conditions.
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