Metrology Material, Precision Measuring, Hardness Testers Phase II Plus Register
Free Catalog
21 Industrial Ave.
Upper Saddle River, NJ 07458
Phone: 201-962-7373
Toll Free: 800-526-9087
Fax: 201-962-8353


Model No. 900-340

Just like our Phase II analog Rockwell Hardness Tester, the 900-340 Superficial Rockwell Hardness Tester comprises  state of the art design and dynamic precision only found at Phase II. Used for testing thin and soft material in the Superficial Rockwell Hardness scales, this hardness tester utilizes a motor driven system for control of the major test force application. The 900-340 is ruggedly engineered to obtain highly sensitive and accurate readings. Conforming to ASTM E-18 Superficial Rockwell Hardness standards, this hardness tester will will offer unmatched repeatability in all Superficial Rockwell Hardness scales (table shown below). A perfect performer suited for any environment including heat treat facilities, tool rooms, workshops, laboratories and inspection labs. Lifetime technical support is included with all Phase II Hardness Testers. So test away with confidence and a level of accuracy you will only find at Phase II.

  • Motor driven system provides control of test force application
  • Direct analog dial reading
  • Engineered to obtain highly sensitive and accurate readings
  • Conforms to ASTM E-18
  • Perfect for laboratories, workshops, tool rooms, inspection labs, etc.
  • For testing thin, soft material in the Superficial Rockwell scales (900-340)


Minor Load

10 Kgf

Major Load 15 Kgf, 30 Kgf, 45 Kgf
Test Force Application Dead Weight
Test Force Control Motorized
Results Display Analog Dial Gage
Vertical Capacity 6.7 in.
Throat Depth 6.6 in.
Height 28 in.
Width 8.9 in.
Depth 19.6 in.
Shipping Weight 190 lbs

  • N-scale Diamond Indentor
  • 1/16 Steel Ball Indentor
  • 3- HRN Test Blocks
  • 3-HRT Test Blocks
  • Test Table 5.87 (150mm)
  • Flat Anvil 2.5 (63mm)
  • Spot Anvil .38 (10mm)
  • Std. Vee Anvil
  • Accessory Case
  • Dust Cover
superficial rockwell hardness tester
Scale Symbol

Indenter Type
Ball dimensions indicate diameter

Preliminary Force
N (kgf)
Total Force
N (kgf)
Typical Application
15N Spheroconical Diamond 29.42 (3) 147.1 (15) Similar to A,C and D scales, but for thinner gage material or case depth
30N Spheroconical Diamond 29.42 (3) 294.2(30)
45N Spheroconical Diamond 29.42 (3) 441.3(45)
15T Ball  1/16" (1.588mm) 29.42 (3) 147.1 (15) Similar to B,F and G scales but for thinner gage materials
30T Ball  1/16" (1.588mm) 29.42 (3) 294.2(30)
45T Ball  1/16" (1.588mm) 29.42 (3) 441.3(45)
15W Ball  1/8" (3.175mm) 29.42 (3) 147.1 (15) Very soft material
30W Ball  1/8" (3.175mm) 29.42 (3) 294.2(30)
45W Ball  1/8" (3.175mm) 29.42 (3) 441.3(45)
15X Ball  1/4" (6.350mm) 29.42 (3) 147.1 (15)
30X Ball  1/4" (6.350mm) 29.42 (3) 294.2(30)
45X Ball  1/4" (6.350mm) 29.42 (3) 441.3(45)
15Y Ball  1/2"(12.70mm) 29.42 (3) 147.1 (15)
30Y Ball  1/2"(12.70mm) 29.42 (3) 294.2(30)
45Y Ball  1/2"(12.70mm) 29.42 (3) 441.3(45)

Related Products
  1. For the Phase II Digital Rockwell Hardness Tester, click here for 900-360.
  2. For testing of both Rockwell and Superficial Rockwell scales, click here for the Phase II 900-370.
  3. For the standard Analog Phase II Rockwell Hardness Tester, click here 900-331.
Back to Product Listing
Hardness Testers
Ultrasonic Thickness Gauges      Surface Roughness
Coating Thickness      Force Gauges
Vibration Meters      Optical Instruments
  Phase II Plus
21 Industrial Ave.
Upper Saddle River, NJ 07458
Phone: 201-962-7373
Toll Free: 800-526-9087
Fax: 201-962-8353
Click here for a free catalog