The Mitutoyo HR-620B is part of Mitutoyo’s advanced HR-600 series of hardness testers, combining high-accuracy Rockwell testing with automated CNC functionality for greater consistency and throughput. Designed for laboratories, manufacturing plants, and research environments, the HR-620B supports multiple test methods including Rockwell, Superficial Rockwell, Light Force Brinell, and plastic hardness, ensuring full versatility for a wide range of materials from metals and alloys to plastics and composites.
Engineered with a broad force application range of 1 kgf to 250 kgf, the HR-620B accommodates diverse testing requirements, from lightweight specimens to large, heavy components. Its solid frame and generous throat depth allow testing of samples up to 250 mm in height and 100 kg in weight, making it well-suited for heat-treated materials, automotive and aerospace parts, and heavy industrial components.
The system’s CNC Z-axis movement and optional motorized X/Y staging enable automated multi-point testing, reducing operator influence and improving repeatability in high-volume testing environments. A digital touchscreen interface provides intuitive operation, real-time results, hardness scale conversions, and statistical analysis, while data can be easily exported via USB or RS-232 for integration into laboratory information systems.
Built to comply with ASTM, ISO, and JIS standards, the HR-620B ensures globally recognized accuracy and repeatability. Its combination of durability, automation, and multi-scale testing capability makes it a valuable solution for Canadian industries seeking dependable hardness measurement tools for both research and production quality assurance.
Features & Benefits of the Mitutoyo HR-620B
Versatile Testing Methods
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Supports Rockwell, Superficial Rockwell, Light Force Brinell, and plastic hardness scales
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Wide force application range from 1 kgf to 250 kgf for flexible use across materials
High Capacity Design
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Accommodates specimens up to 250 mm in height and 100 kg in weight
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Large throat depth of 220 mm for testing bulky or irregularly shaped parts
CNC Automation
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Motorized Z-axis control ensures precise test positioning
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Optional X/Y motorized stages allow automated multi-point and pattern testing
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Improves throughput while reducing operator error and variability
Advanced Digital Interface
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Easy-to-use touchscreen with hardness scale conversions and statistical analysis
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Data export via USB and RS-232 for seamless integration with QC systems
Standards Compliance
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Meets international hardness testing standards: ASTM, ISO, JIS
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Delivers reliable, repeatable results trusted in global laboratories and production lines
Built for Industry and Research
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Ideal for metals, alloys, plastics, composites, and heat-treated components
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Suitable for applications in automotive, aerospace, manufacturing, and material science