Magnetic Crack Detector Machine for Steel Bars
This equipment is a wet horizontal bench-type unidirectional machine designed to produce circular magnetization for inspecting both bright and black rolled steel round bars. Circular magnetization is achieved by clamping the bar directly between the headstock and tailstock and passing current through it. The machine is specifically capable of detecting longitudinal cracks. The headshot current can be switched between HWDC and AC for the detection of subsurface and surface cracks. The machine operates semi-automatically, with all functions such as loading, spraying, magnetization, demagnetization, and unloading being automatic. The only manual operation required is the inspection.
- The machine features nylon rollers for positioning and rotating the bar during the inspection process.
- The adjustable magnetization time, with a maximum duration of 2.0 seconds, facilitates the comprehensive development of indications.
- Offered in a variety of part lengths and diameter ranges.
- The machine is equipped with a dark room frame, hood, and curtains, enabling the inspection with fluorescent inks to be conducted.
Features
- Automatic loading from infeed bench.
- Automatic unloading from outfeed rollers to separate OK/Reject stacks.
- Magnetization, spraying, and 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 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.
Specifications
| Headshot Current Capacity | Models staring from 4000A going up to 6000A |
| Maximum Part Length Accommodation | Staring 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 |
Optional features:
- Automatic rotation of the bar during spraying and inspection.
- Automatic motorized movement of the tailstock based on the length of the bar.
- Automatic movement of the overhead UV LED light.
- Automatic spraying.
- Benefits
- Fully automatic operation.
- Utilizes SCR-based digital current control for accuracy and precision.
- Incorporates a feedback loop to ensure repeatability.
- Implements a reverse agitation system to keep the powder consistently dissolved in the carrier fluid.
- Employs pneumatic clamping to ensure spark-free operations.
- Features a 7-inch Touch Screen for operator comfort.
- Operates with PLC-controlled functionality for faster and reliable testing.
- Provides low voltage output for operator safety.
- Allows operator control of the Poka yoke for the demagnetization cycle.
- applications
- Bright Steel Bars
- Black Steel Bars
Product models
Horizontal Clamping 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 |
