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Superficial Rockwell Hardness Tester

Model No. 900-420

Features: Model No. 900-420 Superficial Rockwell Hardness Tester

This digital 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 flash drive. The 900-420 digital Superficial Rockwell hardness tester offers programmable scale conversions, dwell times, statistical capabilities and test counter.
Capable of testing in all of the Superficial 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, Superficial Rockwell Scales
  • Touch Screen selectable system
  • Upper/Lower Limit Settings
  • Test resolution: 0.01HR 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;
Specifications:Superficial Rockwell Hardness Tester
Minor Load 3 Kgf
Major Load 15KGF, 30KGF, 45KGF
Test Force Application Load Cell Closed Loop
Test Force Control Motorized
Results Display Hi Def LCD Digital Readout
Resolution 0.01HR
Vertical Capacity 8.0”
Throat Depth 7.8”
Height 22”
Width 8”
Depth 31”
Weight 175 lbs
Accessories: Included
  • C-scale Diamond Indenter
  • 1/16” Ball Indenter
  • 2- HRN test Blocks
  • 3- HRT Test Block
  • Test Table 5.87” (150mm)
  • Flat Anvil 2.5” (63mm)
  • Std. V- Anvil
  • Dust Cover
  • Accessory Case
Digital Motorized Hardness Tester
Load Cell, Closed Loop, Superficial Rockwell Hardness Tester!

Cast Iron Body! w/Touch Screen Functions
HARDNESS TESTER RESOURCES
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
    HARDNESS TESTER LINKS
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