▸Description
The PHB-300 Automatic Magnetic Brinell Hardness Tester is a compact, high-precision portable Brinell hardness tester designed for fast and reliable hardness testing of large ferromagnetic steel components. Using a powerful magnetic base, the tester securely attaches to steel surfaces without clamping, making it ideal for testing large structures, installed pipelines, castings, forgings, shafts, and steel plates directly on-site.
Featuring advanced closed-loop servo loading technology and a high-precision force sensor, the PHB-300 automatically completes the loading, dwell, and unloading cycle with a single button while maintaining accurate 187.5 kgf test force in full compliance with ISO 6506, ASTM E10, and ASTM E110. The integrated OLED display provides real-time force monitoring and test status, while built-in illumination simplifies test positioning.
Compact, lightweight, and powered by a rechargeable lithium-ion battery, the PHB-300 is an ideal replacement for portable Leeb hardness testers when higher accuracy and true Brinell hardness testing are required.
Key Features
- Automatic one-button loading, dwell and unloading
- Powerful magnetic base for clamp-free testing
- Closed-loop servo motor with precision force sensor
- Fully compliant with ISO 6506, ASTM E10 & ASTM E110
- OLED display with real-time force monitoring
- Built-in LED illumination for accurate positioning
- Compact lightweight design (5.1 kg)
- Rechargeable battery supports approximately 400 tests
- Compatible with optional Brinell Indentation Measurement System
Applications
- Structural steel and fabricated steel components
- Large castings and forgings
- Heat-treated shafts and molds
- Steel pipes, pipe fittings and pressure vessels
- Installed pipelines and industrial structures
- Manufacturing quality control and maintenance inspection
- Replacement for portable Leeb hardness testing





