Superficial Rockwell Hardness Tester/Superficial Hardness

Model No. 900-420

Features

  • Reading in all Superficial Rockwell Hardness scales such as HRN & HRT, as well as Automatic conversions to Brinell (HB) and Vickers (HV).
  • Touch Screen selectable system
  • Upper/Lower Limit Settings


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. Utilizing the guidelines of ASTM E-18, 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.

For full conformance to the latest E18-20 specification, please call (201) 962-7373

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;
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 0.1HR
Vertical Capacity 8.0”
Throat Depth 7.8”
Height 22”
Width 8”
Depth 31”
Weight 175 lbs

Accessories:

  • N-scale Diamond Indenter
  • 1/16” Ball Indenter
  • 3- HRN Test Blocks
  • 1- HRT Test Block
  • Test Table 5.87” (150mm)
  • Flat Anvil 2.5” (63mm)
  • Std. Vee- Anvil
  • Accessory Case
  • Dust Cover

Options:

Superficial Rockwell Hardness Tester Scale/Indentor/Load chart

Scale Symbol Indentor Type Preliminary Force N (kgf) Total Force N (kgf) Similar to A C and D scales but for thinner gage material Typical Applications
15N Spheroconical Diamond 29.42 (3) 147.1 (15)
30N Spheroconical Diamond 29.42 (3) 294.2 (30)
45N Spheroconical Diamond 29.42 (3) 441.3 (45)
15T 1/16” Carbide Ball 29.42 (3) 147.1 (15) Similar to B, F and G scales but for thinner gage material.
30T 1/16” Carbide Ball 29.42 (3) 294.2 (30)
45T 1/16” Carbide Ball 29.42 (3) 441.3 (45)
15W 1/8” Carbide Ball 29.42 (3) 147.1 (15) Very Soft Material
30W 1/8” Carbide Ball 29.42 (3) 294.2 (30)
45W 1/8” Carbide Ball 29.42 (3) 441.3 (45)
15X ¼” Carbide Ball 29.42 (3) 147.1 (15)
30X ¼” Carbide Ball 29.42 (3) 294.2 (30)
45X ¼” Carbide Ball 29.42 (3) 441.3 (45)
15Y ½” Carbide Ball 29.42 (3) 147.1 (15)
30Y ½” Carbide Ball 29.42 (3) 294.2 (30)
45Y ½” Carbide Ball 29.42 (3) 441.3 (45)