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Digital Rockwell/Superficial Rockwell Hardness Tester

Model No. 900-387

Features: Model No. 900-387 Rockwell Hardness Tester

This digital Rockwell/Superficial Rockwell hardness tester with fully automated load/unload procedures affords highly sensitive and accurate readings. Micro computer controlled Touch Screen with USB output to PC. The 900-387 digital Rockwell hardness tester offers programmable scale conversions, dwell times, statistical capabilities and test counter. Capable of testing in all of the regular Rockwell hardness scales

Direct Loading Method With Load-Cell Instead Of Dead Weight System. High Speed Test Cycle and Extremely Accurate Loading Control

  • Automatic conversions to HB, HV, Other Rockwell Scales
  • Touch Screen selectable system
  • Upper/Lower Limit Settings

Load Cell, Closed Loop, Rockwell Hardness Tester!
Touch Screen Functions w/One Touch Testing Feature!

Specifications:Rockwell Hardness Tester

  • Minor Load29.4N(3kgf), 98.1N (10kgf
  • Major Load147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf),
    588.4N (60kgf),
    980.7N (100kgf),
    1471N (150kgf)
  • Test Force ApplicationLoad Cell Closed Loop
  • Test Force ControlMotorized
  • Results DisplayHi Def LCD Digital Readout
  • Resolution0.01HR
  • Vertical Capacity7.80”
  • Throat Depth5.90”
  • Height700mm
  • Width600mm
  • Depth250mm
  • Weight220 lbs

Accessories: Included

  • C-scale Diamond Indenter
  • 1/16” Ball Indenter
  • 2- HRC test Blocks
  • 1- HRB Test Block
  • 1-HRN Test Block
  • Test Table 5.87” (150mm)
  • Flat Anvil 2.5” (63mm)
  • Std. V- Anvil
  • Dust Cover
  • Accessory Case

  • Test resolution0.01HR Rockwell unit;
  • Operation temperature: 50° - 95°F (10ᵒC~35ᵒC)
  • Ambient environment: clean, no vibration, no strong magnetic field, and no corrosive medium;
  • Power supply: single phase, AC, 110-220 with manual change, 50~60Hz, 4A;
  • Machine dimension: 700mm×250mm×600mm.
Hardness Tester Accessories Portable Hardness Testers
Hardness Tester Block Certification Minimum Thickness Chart for Rockwell Hardness Testing
Rebuilt Inventory with Full Warranty Rockwell Hardness Scale Indentor Load Chart
Hardness Tester Conversion Chart Hardness Setup:
  • 900-331
  • Principle of Rockwell Hardness Testing NIST Links
    Roundness Correction Chart for Hardness Testing ASTM Links