Pen-type Steel Hardness Tester Metal Durometer, Non-destructive hardness testing of materials. Continuous working time:About 20 hours.
Test conditions of Richter hardness tester:
The workpiece weight is not less than 2KG,
The minimum thickness is not less than 10mm,
The surface roughness is not less than 1.6um.
When the above conditions are not achieved stable support or dense coupling!