Cerchar Abrasiveness Tester (Original Type)

System function. Draws a standard steel stylus across a rock surface under fixed load; measured stylus wear gives the Cerchar Abrasiveness Index.

Controlled. Scratch length and applied stylus load (original configuration).

Measured / reported. Stylus tip wear; calculated CAI.

Test method. ASTM D7625. Original-type apparatus.

Reference guidance; configurable per project.

Features

• Standard : ASTM D7625-10.
• Load: 70 N
• Maximum specimen height: 150 mm (6 inches)
• Maximum specimen diameter: 76 mm (3.0 inches)
• Scratch distance precision: 0.01 mm
• Steel Stylus: Rockwell Hardness HRC 54/56
• Weight: 25 kg
• Dimensions (WxLxH): 260x 460 x 375 mm

Benefits

• * ASTM-compliant
• * Easy manual handling, original version
• * Features precision slide for smooth movement of the rock specimen over the required scratch distance
• * Easy adjustment of the daylight for different specimen heights