HT-HM70 Automatic Hardgrove Grindability Index Tester

The HT-HM70 Hard Grove Grindability Tester is specifically designed to determine the grindability of bituminous and anthracite coal, expressed as the Hard Grove Grindability Index (HGI). This instrument provides accurate data reflecting the difficulty of grinding coal and is widely used in the coal, power, metallurgical, and chemical industries.

Testing Principle:

Based on the grinding law (the energy consumed to grind coal powder is proportional to the new surface area generated), this product has passed ministerial-level technical certification and is manufactured by our company.

Product Features:

The Hardgrove Grindability Index Tester is designed in accordance with the principles and methods specified in GB/T 2565-2014.
The instrument is equipped with a built-in linear regression correction curve program, enabling automatic calculation of the Hardgrove Grindability Index during calibration.
Intelligent control, with real-time display of working status and progress. The benchtop structure is compact, modern, and easy to operate.
Automatic grinding bowl lifting and loading, with automatic rotation counting.
Data query function, built-in printer, and automatic calculation and printing of test results.

Technical Parameters:

Item	Specification
Spindle Speed (r/min)	20 ± 0.5
Maximum Working Rotations (r)	60 ± 1/4
Load Force (N)	284 ± 2
Total Power (W)	155
Power Supply	220V, 50Hz
Weight (kg)	120