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PLC Controlled MPI Machine

Our PLC-based MPI test bench units go a step ahead of conventional machines for MPI inspection. They are used across a wide range of industries, such as aerospace, marine automotive, oilfield equipment & railways, for the detection of surface & subsurface defects. These benches are two vector machines. A circular magnetic field is generated by clamping the part between the headstock &amp tailstock & passing a current through the part. Parts with a central bore can be tested using the threaded bar method. A longitudinal magnetic field is generated changeover is accomplished by solid-state circuitry.

Adjustable magnetization time of up to 2.0 seconds allows for the complete development of indications

Available in various amperages, part lengths & coil diameters

Dark room with a ventilation fan & white light is included in all models for testing with fluorescent powders

Complies with ASTME3024


  • PLC-Based Control. Automatic Cycle for faster testing.
  • 7 Inch Touch Screen for control & display.
  • Operator controlled an automatic double shot.
  • 50 Program memory to store settings for different parts.
  • Error displayed on a touch screen for easy diagnostics.
  • Independent current control for Circular and longitudinal magnetization.
  • Independent transformers for Circular and longitudinal magnetization, thereby avoiding the use of noisy changeover switches.
  • Digital, stepless current control.
  • Heavy-duty transformers. No need to wait between two shots.
  • Both sides have Pneumatic clamping.
  • Stainless Steel liquid storage tank.
  • Stainless Steel collection tray
  • Reverse agitation bath system.
  • AC to DC changeover for headshot uses solid-state circuitry.
  • Continuously movable tailstock with cam lock
  • Steady Rollers for job placement
  • Integrated decaying-AC demagnetization with automatic control
  • Feedback loop-based current control with current failure indicator.
  • Standard make PLC & HMI.
  • Easily serviceable.


Headshot Current Capacity Models starting from 2000A going up to 6000A
Maximum Part Length Accommodation Starting from 600mm going up to 1500mm
Maximum Part Diameter Starting from 100mm going up to 300mm
Maximum Part Weight 300Kg
Storage Bath Capacity 25 L
Shot Time Adjustable from 0.5 sec 2.0 sec
Power Supply 3 Phase 3 Wire 415V AC/220V AC
Frequency 50Hz or 60Hz
Pneumatic Pressure Required 4-6 Kg/cm2
Coil Diameters 300mm, 400mm, 500mm
Control Voltage 24V DC
Touch Screen Display Size 7” Diagonal

Product Benefits & Applications


  • SCR-based digital current control for accuracy & precision
  • Feedback loop ensures repeatability 
  • Reverse agitation system keeps the powder always dissolved in the carrier fluid.
  • Pneumatic clamping ensures no sparks
  • 7-inch Touch Screen for operator comfort.
  • PLC-controlled operation for faster & reliable testing
  • No changeover sound
  • Low voltage output for operator safety
  • Operator controlled the Poka yoke for the demagnetization cycle.


  • Magnetic particle inspection of automotive parts such as shafts, axles, connecting rods, hubs, couplings, steering parts, gears, etc.
  • Fasteners
  • Railway parts
  • Sample testing in the steel industry
  • Ferrous raw material testing in all industries
  • Oil field equipment parts

Product models

Horizontal Clamping Models

Model Head Shot Capacity Coil Shot Capacity Coil Inside Diameter Maximum Part Length Maximum Part Diameter
MK-20-C-60-A 2000A AC & HWDC 7.5 KAT AC 300mm 600mm 100mm
MK-20-C-120-A 2000A AC & HWDC 7.5 KAT AC 300mm 1200mm 100mm
MK-30-C-60-A 3000A AC & HWDC 10.0 KAT AC 300mm 600mm 150mm
MK-30-C-120-A 3000A AC & HWDC 10.0 KAT AC 300mm 1200mm 150mm
MK-40-C-100-A 4000A AC & HWDC 10.0 KAT AC 400mm 1000mm 200mm
MK-40-C-150-A 4000A AC & HWDC 10.0 KAT AC 400mm 1500mm 200mm
MK-50-C-100-A 5000A AC & HWDC 10.0 KAT AC 400mm 1000mm 250mm
MK-50-C-150-A 5000A AC & HWDC 10.0 KAT AC 400mm 1500mm 250mm
MK-60-C-100-A 6000A AC & HWDC 10.0 KAT AC 500mm 1000mm 300mm
MK-60-C-150-A 6000A AC & HWDC 10.0 KAT AC 500mm 1500mm 300mm

Vertical Clamping Models

Model Head Shot Capacity Coil Shot Capacity Coil Inside Diameter Maximum Part Length Maximum Part Diameter
MK-20-C-20-V-A 2000A AC & HWDC 7.5 KAT AC 200mm 200mm 100mm
MK-20-C-20-V-A 2000A AC & HWDC 7.5 KAT AC 200mm 200mm 100mm
MK-20-C-30-V-A 2000A AC & HWDC 7.5 KAT AC 300mm 300mm 100mm
MK-60-BG (For Bull Gears) 6000A HWDC 10.0 KAT AC 450mm 100mm 400mm

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