MPI Yokes and Yoke Kits

Magnaflux magnetic particle inspection (MPI) testing yokes are designed to be fast, reliable, and easy to use for detecting surface and sub-surface defects in ferrous materials. The product line includes the ergonomic, lightweight, sealed and serviceable Y-2 AC yoke, and the durable Y-7 AC/DC yoke for high-strength applications. These portable NDT instruments feature adjustable legs and pole pieces, making them ideal for weld inspection, automotive components, and steel castings. ASTM-compliant yokes deliver professional magnetic particle testing results with enhanced operator productivity and reduced fatigue.

Magnaflux Y-2, Y-7 & Y-8 Yokes – Reliable Magnetic Particle Inspection for Every Job Site

When precision, reliability, and durability matter most, Magnaflux Y-Series MPI Yokes deliver unmatched performance for magnetic particle inspection (MPI). Whether you're working in the field, on the production line, or in a lab, the Y-2, Y-7, and Y-8 yokes are engineered to meet your specific needs, ensuring accurate flaw detection and maximum operator comfort.

Y-2 AC Electromagnetic Yoke

Lightweight. Portable. Dependable.

Ideal for quick inspections, the Y-2 yoke offers a high-intensity AC magnetic field that provides superior particle mobility, making it perfect for detecting surface-breaking indications. Its rugged, lightweight construction reduces operator fatigue during extended use, while an ergonomic grip enhances control and comfort.

Key Features:

  1. AC-only for surface crack detection
  2. Durable rubber housing
  3. Lightweight and portable (7.5 lbs)
  4. Ideal for weld inspections, fieldwork, and tight access areas

Y-7 AC/DC Electromagnetic Yoke

Versatility in the Palm of Your Hand.

The Y-7 yoke combines AC and DC magnetic field options, giving technicians the flexibility to inspect both surface and sub-surface flaws. Built for durability in demanding environments, the Y-7’s switchable field makes it a go-to tool for versatile inspection scenarios.

Key Features:

  1. AC for surface, DC for sub-surface inspections
  2. Switchable modes with a single unit
  3. Rugged construction for industrial settings
  4. Ideal for pipeline, structural steel, and aerospace applications

Y-8 Battery-Operated DC Yoke

True Portability. Uncompromised Power.

Designed for job sites without easy access to power, the Y-8 yoke offers the freedom of a battery-powered DC magnetic field, delivering strong performance in the most remote environments. The Y-8 is built for endurance, making it ideal for outdoor inspections and long shifts.

Key Features:

  1. Battery-powered DC yoke for remote use
  2. Consistent, strong magnetic field
  3. Up to 8 hours of continuous operation
  4. Perfect for field inspections, railroads, and power plants

Why Choose Magnaflux Yokes?

  1. Meets ASTM E1444, ISO 9934 and other industry standards
  2. Engineered for reliability, even in the toughest environments
  3. Backed by Magnaflux’s decades of NDT expertise

Upgrade your magnetic particle testing with the trusted performance of Magnaflux Y-Series yokes—engineered to detect defects, built to last. Whether you need the flexibility of AC/DC, the convenience of battery power, or the light weight of an AC unit, there’s a Magnaflux yoke to match your inspection challenge.

Not sure which Magnaflux yoke is right for your application? Read through our Yoke Product Comparison or contact us for assistance.