Phase2Plus

  • 21 Industrial Ave.
  • Upper Saddle River, NJ 07458
  • Phone: 201-962-7373
  • Toll Free: 800-526-9087
  • Fax: 201-962-8353
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Digital Rockwell/Superficial Rockwell Hardness Testers

Model No. 900-387


Load Cell, Closed Loop, Rockwell Hardness Tester!

Touch Screen Functions w/One Touch Testing Feature!

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

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/N scale Diamond Indenter
  • 1/16” Ball Indenter
  • 2- HRC test Blocks
  • 1- HRB Test Block
  • 2- HRN Test Block
  • 1- HRT Test Block
  • Test Table 5.87" (150mm)
  • Flat Anvil 2.5" (63mm)
  • Std. V- Anvil
  • 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.
Scale Symbol Indentor Type Preliminary Force N (kgf) Total Force N(kgf) Typical Applications
A Spheroconical Diamond 98.07 (10) 588.4 (60) Cemented carbides, thin steel, and shallow case hardened steel
B 1/16” Carbide Ball 98.07 (10) 980.7 (100) Copper alloys, soft steels, aluminum alloys, malleable iron, etc.
C Spheroconical Diamond 98.07 (10) 1471 (150) Steel, hard cast irons, pearlitic malleable iron, titanium, deep case hardened steel, other harder than HRB 100
D Spheroconical Diamond 98.07 (10) 980.7 (100) Thin steel and medium case hardened steel, and pearlitic malleable iron
E 1/8” Carbide Ball 98.07 (10) 980.7 (100) Cast Iron, Aluminum and magnesium alloys, and bearing metals
F 1/16” Carbide Ball 98.07 (10) 588.4 (60) Annealed copper alloys and thin soft sheet metals
G 1/16” Carbide Ball 98.07 (10) 1471 (150) Malleable irons, copper-nickel-zinc and cupro-nickel alloys
H 1/8” Carbide Ball 98.07 (10) 588.4 (60) Aluminum, zinc and lead
K 1/8” Carbide Ball 98.07 (10) 1471 (150)