MPI
EQUIPMENT
High-Performance
Magnetic Particle Inspection Systems
Streamlining NDT Workflows with Custom Automation & AI Defect Recognition.
Ensure absolute structural integrity with PROMAG's advanced MPI solutions. From manual setups to fully automated, AI-driven robotic inspection lines, we deliver compliance, speed, and peerless accuracy for critical industries.
Defect Recognition
Crack Coverage
Turnkey Systems
Dual Field
Why Choose PROMAG MPI Solutions?
AI-Powered Precision
Eliminate human error. Our proprietary AI defect inspection & recognition robots identify even micro-scale surface flaws with unparalleled consistency, preventing fatigue-induced leakage.
Tailored Automation
From semi-automatic stations to fully automated turnkey lines, we automate clamping, multi-directional magnetization, spraying, and unloading to match your high-volume production needs.
Global Compliance
Engineered to strictly adhere to international standards, including ASTM E1444 and EN ISO 9934-1, 2, 3, ensuring seamless integration into aerospace and heavy manufacturing workflows.
Magnetization Methods
PROMAG systems design versatile magnetization solutions to ensure complete coverage of cracks in all orientations.
Field Flow Method — Transverse Crack Detection
Utilizes electromagnetic coils and a U-shaped iron yoke to induce a longitudinal magnetic field running parallel to the workpiece length. Any cracks oriented perpendicular (transverse) to the field lines disturb this flow, creating stray leakage flux that instantly attracts fluorescent particles.
Current Flow Method — Longitudinal Crack Detection
Passes an electrical current directly through the workpiece itself. Following physical electromagnetic rules, this current generates a circular (circumferential) magnetic field around the core. This orientation is ideal for showing defects that run parallel (longitudinal) to the current path.
Combined Magnetization — 360-Degree Crack Discovery
By simultaneously activating both the field and current flow circuits, our testing machines create an oscillating, multi-directional field vector. This combined system detects cracks of any orientation in a single, rapid testing cycle - significantly decreasing inspection duration for high-volume automotive and forging operations.
AC vs. DC Testing Fields
Alternating Current (AC)
Concentrates magnetic field lines on the superficial skin of the metal workpiece. Exceptionally sensitive to tiny surface-breaking anomalies (e.g., fatigue cracks or grinding defects).
Direct Current (DC)
Provides deep magnetic flux penetration through the component profile. Best suited for discovering subsurface voids, structural gaps, or deeper internal defects.
Rectified DC Variations
Different forms of DC provide varying levels of penetration and particle mobility.
HWDC
Half-WavePulsating DC with high ripple that provides excellent particle mobility, making it ideal for dry-powder inspection. It penetrates deeper than AC to effectively detect both surface and near-subsurface defects.
FWDC
Full-Wave · 1-PhaseA smoother single-phase DC with reduced ripple. It offers deeper, steadier magnetic flux penetration, ensuring reliable detection of subsurface defects.
3P-FWDC
Full-Wave · 3-PhaseNear-pure DC with minimal ripple, delivering maximum penetration for deep subsurface defects while maintaining a balanced three-phase power load.
PROMAG MPI Lines
Six specialized product categories engineered to cover every inspection environment, from handheld field testing to fully automated robotic systems.
APEX Magnetic Bench
Learn More(up to 10,000 A)
- Engineered for demanding, high-throughput manufacturing environments
- Multi-directional single-cycle magnetization testing
- Advanced PLC & HMI touchscreen interface with integrated barcode scanning
- Complete database logging for 100% inspection traceability
- High-amperage 3-phase FWDC capability for deep defect penetration
MPG Power Packs & Current Generators
Learn More- High-amperage current output (up to 10,000 A) in a heavy-duty mobile unit
- Equipped with PLC controls and precise digital current meters
- 30 memory recipe slots for rapid shift transitions and part recall
- Integrated auto-demagnetization routine
- Ideal for large castings, forgings, structural field welds, and on-site testing
ECO Essential Bench
Learn More- Cost-optimized system delivering professional NDT quality with maximum ROI
- Combines field-proven MPG power pack and MTB bench modular technology
- Step-less current output adjustment for circular and longitudinal magnetic fields
- Flexible manual clamping headstock supporting 200 mm to 300 mm copper pads
- Customizable bed length to fit longer components in QC stations and labs
AD-3 Electromagnetic Yoke
Learn More- Cordless lithium-ion battery design for complete mobility without power cords
- Long battery runtime (~6 hours continuous operation)
- IP54 dust and water resistance for harsh field environments
- Dual switchable UV-A fluorescent and White LED illumination
- Lightweight 1.9 kg ergonomic body to minimize operator fatigue during prolonged inspections
Customized System Turnkey
Learn More(AC / DC / 3P-FWDC based on engineering design)
- Fully automated turnkey solution designed for Industry 4.0 smart factory production lines
- Multi-directional vector magnetization ensuring 360-degree flaw coverage
- Industrial robotic loading, unloading, and manipulation
- AI deep-learning Automated Defect Recognition (ADR) for high-speed, zero-error inspection
- Custom engineered to specific compliance standards (ASTM E1444, NADCAP, Automotive/Aerospace)
Demagnetization Equipment
Learn More- Simple Operation — fast results by passing tools or workpieces through the tunnel
- Automation Ready — easily integrates with conveyor systems
- Continuous Duty — internal fan for active heat dissipation
- High-Performance AC Demagnetization — variable-frequency sine wave pulses for efficiency
- Versatile DC Functionality — supports specialized applications and automation
- Compact & Portable — fully integrated mobile base unit for flexible deployment
Line · 01
Stationary wet bench engineered for high-throughput, multi-directional magnetization testing, with PLC & HMI control and high-amperage 3-phase FWDC for deep defect penetration.
Learn More
Line · 02
Mobile & portable heavy-duty power packs providing strong magnetizing current for flexible, on-site testing.
Learn More
Line · 03
Compact, economical, and highly reliable essential MPI benches tailored for budget-conscious standard testing.
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Line · 04
Ergonomic, heavy-duty handheld electromagnetic yokes perfect for field welds and quick local inspections.
Learn More
Fully tailored, automated, and AI-powered turnkey inspection systems for smart factory production lines.
Learn MoreVersatile tunnel and portable demagnetization systems for residual magnetic field removal, with simple operation and automation-ready integration.
Learn More
Accessories, Consumables & More
Beyond our core product lines, explore PROMAG's full range of MPI accessories, consumables, and system components — engineered to work seamlessly with every inspection system we build.
View All MPI ProductsPROMAG MPI in Action
Watch our state-of-the-art magnetic particle testing systems deliver high-speed, automated, and compliant surface crack detection across critical industries.
Magnetic Particle Inspection
Core technological advantages, smart digital control systems, and high-precision testing workflows.
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Customized MPI System for CVJ
Custom-engineered multi-directional magnetization and fully automated turnkey system for automotive drivetrain components (Constant Velocity Joints).
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MPI Equipment for High Speed Rail Gear
Heavy-duty precision inspection station for railway transmission systems, satisfying the most uncompromising mass-transit safety standards.
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Multi-directional cross-coil MPI System
Multi-directional magnetization, combining speed, safety, and stable quality to provide an efficient solution for industrial non-destructive testing.
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PMW-Series MPI Equipment
Wet horizontal magnetic particle testing bench engineered for high-throughput, repeatable surface and subsurface crack detection on production lines.
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