MFD620C Ultrasonic Flaw Detector Mitech

MFD620C Ultrasonic Flaw Detector – Mitech

Product Overview

The Mitech MFD620C Ultrasonic Flaw Detector is a professional-grade non-destructive testing (NDT) device designed to detect, evaluate, and document internal flaws in a wide range of materials. Built with advanced ultrasonic pulse reflection technology, it offers a high level of accuracy and reliability in detecting hidden defects such as cracks, inclusions, porosity, and laminations.

With a wide measurement range up to 6000 mm (at steel velocity), real-time data storage, and a high-resolution display, this device is ideal for weld inspection, metal casting evaluation, and structural integrity testing. Its compact, lightweight, and rugged design ensures excellent performance in both laboratory and field environments.

Key Features

• High measurement range up to 6000 mm (steel velocity)

• High-resolution display for sharp waveform visualization in any lighting

• Adjustable gate position, width, and height with LED and beep alarms

• USB 2.0 OTG port for fast data transfer and report generation

• Storage for 50 groups of parameter settings and up to 1,000 test records

• Integrated real-time clock for automatic timestamping of test data

• Over 8 hours of continuous operation with a rechargeable lithium battery

• Digital rotary wheel and cross-menu navigation for quick access and settings

• Lightweight and portable design for ease of use in field applications

Applications

• Weld Inspections: Identifies cracks, lack of fusion, and other flaws in weld joints

• Forgings and Billets: Evaluates the internal structure and detects inclusions or cavities

• Axles and Shafts: Ensures the integrity of rotating and load-bearing components

• Pressure Vessels and Tanks: Detects corrosion and stress-induced defects

• Turbines and Structural Components: Critical for preventive maintenance and safety evaluation

Technical Specifications

• Brand: Mitech

• Model: MFD620C

• Measuring range: 0 to 6000 mm (at steel sound velocity)

• Horizontal resolution accuracy: ±0.2% FSW

• Vertical linearity: ≤3% FSH

• Display: High-resolution LCD

• Data storage capacity:

  • 50 groups of flaw detection parameter channels

  • Stores up to 1,000 flaw detection records

• Data transfer: USB 2.0 OTG interface

• Power supply: Rechargeable lithium battery

• Operating time: More than 8 hours of continuous use

• Weight (main unit): 1.8 kg

• Dimensions (main unit): 280 × 220 × 70 mm

• Package dimensions: 44.5 × 37 × 14 cm

• Total weight with packaging: 5.5 kg

• Operating temperature: -10℃ to +50℃

• Storage temperature: -30℃ to +50℃

• Relative humidity: 20% to 95% RH (non-condensing)

Operating Principle

The MFD620C functions on the pulse-echo ultrasonic testing method. It transmits a short ultrasonic pulse into the test material using a transducer. When the pulse encounters a flaw or discontinuity, it is reflected back and displayed on the screen. By measuring the time interval and amplitude of the echoes, the device can determine the location and type of defect.

Usage Tips

• Calibrate the unit regularly using known reference standards

• Use proper couplants (gel, oil, or water-based) to ensure accurate transmission of ultrasonic waves

• Select the appropriate probe frequency and angle for specific applications

• Avoid direct sunlight or extreme temperature exposure to protect display and internal components

• Store in a clean, dry environment when not in use

Maintenance & Support

• Clean the device with a soft cloth; avoid abrasive or chemical cleaners

• Recharge battery fully before prolonged storage

• Do not disassemble the unit; contact authorized service personnel for support

• Comes with a warranty and after-sales support from Mitech or authorized distributors