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Magnetic Crack Detector Machine for Steel Bars

This machine is a wet horizontal bench-type unidirectional machine that generates circular magnetization meant for checking both bright & black rolled steel round bars. Circular magnetization is achieved by clamping the bar directly between the headstock & tailstock and passing current through it. The machine is capable of detecting longitudinal cracks only. The headshot current can be switched between HWDC & AC for the detection of subsurface & surface cracks. The machine is semi-automatic in operation. All operations, such as loading, spraying, magnetization, demagnetization & unloading, are automatic. The only manual operation is the inspection. 

The machine has nylon rollers for placing & rotating the bar on the machine during the inspection.

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

Available in various part lengths & diameter ranges.

The machine is provided with a dark room frame, hood & curtains so that inspection with fluorescent inks can also be carried out.

Features

  • Automatic loading from infeed bench.
  • Automatic unloading from outfeed rollers to separate OK/Reject stacks.
  • Magnetization, spraying & inspection all on one station.
  • PLC-Based Control. Fully automatic cycle for faster testing.
  • 7 Inch Touch Screen for control.
  • Large Digital Ammeter with Retention.
  • Operator controlled an automatic double shot
  • 50 Program memory to store settings for different diameters.
  • Error displayed on the touch screen for easy diagnostics.
  • Digital, stepless current control.
  • Heavy duty transformer.
  • Both sides have Pneumatic clamping.
  • Stainless Steel liquid storage tank.
  • Stainless Steel collection tray
  • Reverse agitation bath system.
  • Continuously movable tailstock with cam lock
  • Integrated decaying-AC demagnetization with automatic control
  • Feedback loop-based current control with current failure indicator.
  • Standard make PLC & HMI. Easily serviceable.

Product Specifications

Headshot Current CapacityModels staring from 4000A going up to 6000A
Maximum Part Length AccommodationStaring from 5m going up to 10mm
Maximum Part Diameter
Staring from 16mm going up to 160mm
Maximum Part Weight 1200Kg
Storage Bath Capacity 50-150 L
Shot Time Adjustable from 0.5 sec 2.0 sec
Power Supply 3 Phase 4 Wire 415V AC/220V AC
Frequency 50Hz or 60Hz
Pneumatic Pressure Required 4-6 Kg/cm2
Control Voltage 24V DC
Touch Screen Display Size 7” Diagonal

Product BENEFITS & APPLICATIONS

Benefits

  • Fully Automatic operation
  • 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
  • Low voltage output for operator safety
  • Operator controlled the Poka yoke for the demagnetization cycle

Applications

  • Bright Steel Bars
  • Black Steel Bars

Product models

Model

Head Shot Capacity

Maximum Bar Length

Minimum Bar Length

Maximum Bar Diameter

Minimum Bar Diameter

MK-40-400-BRT

4000A AC & HWDC

4m
2m
75mm
16mm
MK-50-600-BRT

5000A AC & HWDC

6m
2m
90mm
25mm
MK-60-C-800-BRT

6000A AC & HWDC

8m
2.5m
120mm
50mm
MK-80-C-1000-BRT

8000A AC & HWDC

10m
3m
160mm
75mm

product models

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

Model

MK-15-C-40-S

Head Shot Capacity

1500A AC & HWDC

Coil Shot Capacity

7.5 KAT AC

Coil Inside Diameter

200mm

Maximum Part Length

400mm

Maximum Part Diameter

75mm

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