Wet fluorescent magnetic particle machine for detecting surface cracks and defects in prestressing anchorages, wedges and bearing plates.
Overview
This stationary horizontal MPI machine is used for non-destructive testing of surface and near-surface defects (cracks, seams, laps, inclusions) in ferromagnetic steel parts such as prestressing anchorages, wedges, bearing plates and fasteners. It uses the wet fluorescent method: the workpiece is clamped and magnetised between two contact heads, fluorescent magnetic suspension is sprayed onto the surface, and indications form where leakage fields concentrate; indications are then viewed under a UV (black) light. The machine combines circumferential (direct contact) and longitudinal (coil) magnetisation, with combined magnetisation, automatic demagnetisation, recirculating suspension spray and foot-pedal control. Compliant with GB/T 15822, JB/T 8290 and GB/T 9444, it is widely used for batch quality inspection of prestressing anchorages, automotive parts, fasteners, shafts and bars.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Method | wet fluorescent magnetic particle (black-light viewing) |
| Magnetisation | circumferential + longitudinal (coil), combined |
| Magnetising current | AC, half-wave DC |
| Circumferential current | 0–3000–6000 A (adjustable) |
| Headstock spacing | 0–900 mm, manual |
| Sensitivity | A1 15/50 shim visible |
| Duty cycle | ≥25% |
| UV lamp | overhead black light, ~365 nm |
| Suspension system | recirculating pump + spray nozzles + tank |
| Demagnetisation | automatic decaying-field demagnetisation |
| Control | console with digital current/timer, foot pedal |
| Safety | interlock, e-stop, splash guard |
| Standards | GB/T 15822, JB/T 8290, GB/T 9444 |
| Applications | batch inspection of anchorages, fasteners, shafts, bars |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Magnetic Particle Inspection Machine for Prestressing Anchorages comply with?
A1: The Magnetic Particle Inspection Machine for Prestressing Anchorages is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Magnetic Particle Inspection Machine for Prestressing Anchorages be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
This stationary horizontal MPI machine is used for non-destructive testing of surface and near-surface defects (cracks, seams, laps, inclusions) in ferromagnetic steel parts such as prestressing anchorages, wedges, bearing plates and fasteners. It uses the wet fluorescent method: the workpiece is clamped and magnetised between two contact heads, fluorescent magnetic suspension is sprayed onto the surface, and indications form where leakage fields concentrate; indications are then viewed under a UV (black) light. The machine combines circumferential (direct contact) and longitudinal (coil) magnetisation, with combined magnetisation, automatic demagnetisation, recirculating suspension spray and foot-pedal control. Compliant with GB/T 15822, JB/T 8290 and GB/T 9444, it is widely used for batch quality inspection of prestressing anchorages, automotive parts, fasteners, shafts and bars.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Method | wet fluorescent magnetic particle (black-light viewing) |
| Magnetisation | circumferential + longitudinal (coil), combined |
| Magnetising current | AC, half-wave DC |
| Circumferential current | 0–3000–6000 A (adjustable) |
| Headstock spacing | 0–900 mm, manual |
| Sensitivity | A1 15/50 shim visible |
| Duty cycle | ≥25% |
| UV lamp | overhead black light, ~365 nm |
| Suspension system | recirculating pump + spray nozzles + tank |
| Demagnetisation | automatic decaying-field demagnetisation |
| Control | console with digital current/timer, foot pedal |
| Safety | interlock, e-stop, splash guard |
| Standards | GB/T 15822, JB/T 8290, GB/T 9444 |
| Applications | batch inspection of anchorages, fasteners, shafts, bars |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Magnetic Particle Inspection Machine for Prestressing Anchorages comply with?
A1: The Magnetic Particle Inspection Machine for Prestressing Anchorages is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Magnetic Particle Inspection Machine for Prestressing Anchorages be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
