Standards:

Applications:

Used for measuring the hardness of grinding wheels bonded with clay or resin, with grit size ranging from 36# to 150# and hardness grades from F to Y. The thickness of the grinding wheel to be tested shall not be less than twice the depth of the indentation, and the area shall not be less than 30 mm × 30 mm.

Product Information:

Working Principle

This machine uses compressed air at a certain pressure to spray a fixed volume of quartz sand onto the surface of the grinding wheel, forming a small indentation. The hardness of the grinding wheel is determined by the depth of the indentation: higher hardness results in a shallower indentation, while lower hardness results in a deeper indentation. A reference table is provided on the machine to correlate indentation depth with the corresponding grinding wheel hardness.

Technical Specifications

Head extension length: 300 mm

Head movement range: 350 mm

Worktable lifting height: 170 mm

Scale resolution: 0.1 mm

Round worktable size: Φ420 mm

Square worktable size: 450 × 500 mm

Angular worktable rotation angle: 90°

Overall dimensions: 1525 × 700 × 1870 mm

Weight: ≈700 kg