NAKE HR-150A ອຸປະກອນທົດສອບຄວາມແຂງ Rockwell ດ້ວຍມື (98.07 N)

Initial test force: 98.07 (10kgf)

Total test force:

a. 588.4N (60kgf) b. 980.7N (100kgf) c. 147lN (150kgf)

Rockwell hardness scale: A, B, C

Rockwell hardness scale graduation:

Ruler C: O—l00 Ruler B: 10～100 Ruler A: O—l00

Determination of hardness range: 20—88HRA 20—100HRB 20—70HRC

Indenter specifications

a. Diamond cone indenter: cone angle 120°, cone top circle radius R<0.2mm

b. Steel ball indenter: steel ball diameter: Ф1.5875 mm

The maximum height of the specimen: 170 mm

The maximum distance from the center of the indenter spindle to the frame 135 mm

Dimensions: 466 x 238 x 630 mm

Weight: about 75kg