Hardgrove Grindability Tester Reference Samples
Reference Samples are four special coal samples used to calibrate new Hardgrove Grindability Testers to test the ease of crushing coal samples with the unit. The four Reference Samples come in different hardgrove grindability index values: 40, 60, 80, 100 HGI. Each hardgrove grindability index Reference Sample includes 3,000g of sample and a Certificate of Analysis. Meets ASTM.
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(4) Reference Samples
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Certificate of Analysis
Quantity (4) 6.6lb (3,000g) HGI Values (40, 60, 80 and 100)
Hardgrove Grindability Tester is a compact, precision instrument for testing coal or coke grindability. It has:
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Microcomputer Intelligent Controlling System: Real-time working status and process display, precise control and monitoring.
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High Automation: Auto-lifting and loading, auto-revoluting and counting, automatic stopping when counter shows 60 revolutions. High automation, reduce manual intervention, increase efficiency.
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Automatic Calculation and Calibration: Built-in linear regression correction curve, automatic calculation and calibration.
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Emergency Stop Function: Automatic stop when host failure, accumulated revolution counting upon restart, safe and reliable.
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User-Friendly Interface: Film key and LCD screen, easy to use even for new user.
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Data Storage and Printing: Auto data storage, connect to balance, micro-printer for date query, automatic calculation and result print, comprehensive data management.
Hardgrove Grindability Tester is used in coal industry to test Hardgrove Grindability Index (HGI), which is the energy required in grinding process or the yield for a given energy input. This device provides reliable results for Hardgrove Grindability Index, it’s a must-have for professionals.
Technical Specifications and Standards
Hardgrove Grindability Tester is built according to ASTM D-409 and meets ISO.
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Spindle RPM: 20±1r/min
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Working Revolution: 60r
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Grinding Bowl Capacity: 50g
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Ball Diameter: 25.4mm
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Vertical Pressure of Grinding: 284±2N
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Power Requirement: AC 220V, 50/60 Hz
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Feed Size: 0.63~1.25mm
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Net Weight: 180.0lb (81.65kg) for 115V/60Hz and 265.0lb (120.20kg) for 230V/50Hz
These specifications for the hardgrove grindability index meet the coal industry’s tough requirements, ensure accurate and reliable hardgrove grindability index measurement. ASTM and ISO standards compliance guarantee the quality and performance.