Model No. 900-440TB is a tall-frame TWIN digital Rockwell hardness tester with a 15.7" vertical capacity and a cast-iron body. Fully automated load/unload with load cell, closed-loop, motorized test-force control provides highly sensitive, accurate readings across all regular and superficial Rockwell scales.

Key features

• Twin Rockwell & Superficial Rockwell testing
• Load cell, closed-loop, motorized test force (direct loading — no dead weights)
• 15.7" vertical capacity; cast-iron body
• Touch-screen control with USB memory-stick output
• Programmable scale conversions, dwell times (2–50 s), statistical functions, and test counter
• Automatic conversions to HV and HB
• Upper/lower limit settings & alarm

Included accessories

• C/N-scale Diamond Indenter
• 1/16" Ball Indenter
• 3 × HRC Test Blocks, 1 × HRB Test Block, 1 × HRN Test Block, 1 × HRT Test Block
• Test Table 5.87" (150 mm)
• Flat Anvil 2.5" (63 mm)
• Std. V-Anvil
• Dust Cover
• Accessory Case