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Digital Rockwell / Superficial Rockwell Hardness Testers/Hardness Testers/Rockwell Hardness Testers
Model No. 900-387
Features
- Reads in all Rockwell Hardness Scales and Superficial Rockwell Hardness Scales. These include the popular HRA, HRBW, HRC, HRN and HRT Hardness scales.
- Automatic conversions to all Rockwell/Superficial Rockwell Scales, as well as to Brinell (HB) and Vickers (HV).
- Touch Screen selectable system
- Upper/Lower Limit Settings
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. Utilizing the guidelines of ASTM E-18, the 900-387 digital Rockwell hardness tester offers programmable scale conversions, dwell times, statistical capabilities and test counter. Capable of testing in all Rockwell/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 Rockwell, Superficial Rockwell, Brinell (HB) and Vickers (HV) Hardness Scales
- Touch Screen selectable system
- Upper/Lower Limit Settings
Specifications: Rockwell Hardness Tester
Minor Load 29.4N（3kgf）, 98.1N (10kgf Major Load 147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf),
588.4N (60kgf),
980.7N (100kgf),
1471N (150kgf)Test Force Application Load Cell Closed Loop Test Force Control Motorized Results Display Hi Def LCD Digital Readout Resolution 0.01HR Vertical Capacity 7.80” Throat Depth 5.90” Height 700mm Width 600mm Depth 250mm Weight 220 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 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;
- Machine dimension: 700mm×250mm×600mm.
Options:
- NIST/ASTM certified hardness test blocks, penetrators and kits are available.
- This model is available with ASTM E18-20 certification
Rockwell Hardness & Superficial Rockwell Hardness Tester Scale/Indentor/Load chart
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) Bearing Metals and other very soft or thin materials. Use smallest ball and heaviest load that doesn’t give anvil effect. L ¼” Carbide Ball 98.07 (10) 588.4 (60) M ¼” Carbide Ball 98.07 (10) 980.7 (100) P ¼” Carbide Ball 98.07 (10) 1471 (150) R ½” Carbide ball 98.07 (10) 588.4 (60) S ½” Carbide ball 98.07 (10) 980.7 (100) V ½” Carbide ball 98.07 (10) 980.7 (150) 15N Spheroconical Diamond 29.42 (3) 147.1 (15) Similar to A, C and D scales but for thinner gage material. 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)
