Since 1984, United has manufactured computer-controlled closed loop Rockwell Hardness Testers. Our second generation Rockwell Hardness Tester, the Tru-Blue II is the lowest priced US manufactured closed loop tester that meets ASTM E18, ISO 6508 specifications and NIST recommendations.

The United TRU-BLUE Rockwell Hardness Tester is computer controlled (closed loop) application of forces are via load cell measurement. The Tester has a 4x20 bright vacuum fluorescent display. Front panel controls with Piezo-Electric switches. Auto self-test and last test setup recall at startup. Removable parts clamp used to secure irregular shaped or oversize test specimens. Logical setup and operating menue from front panel keys.

The V-Test II Vickers automatic Hardness Tester with a low range between HV, 0,1 to HV 10. Micro hardness range between HV 0,01 to HV2

Motorized turret Automatic load control Adjustable back-lit LED Auto Switch between indenter and objective Adaptor and software for viewing and editing images

Accurate - Calculated to 1/2 of 1% of load. Can be used for higher loads up tp 3,000 kg. Versatile - Can be used in virtually any position. Durable - Some King Portable Brinell testers have been working over 60 years. Permanence - Impressions can be checked anytime. Affordable.

Convenience and reliability is what the Clark Portable " Rockwell" Tester, Model CPT, provides the user.  It has the ability to test both inside and outside surfaces at any angle without affecting accuracy.  Quick change indenter, easy to read dial indicators, and finger tip loading make the CPT a handy and efficient form of testing large and inaccessible parts.

The Bareiss Digi Test II Shore Hardness Tester is a fully automatic hardness measuring system for rubber and plastics parts with different Shore and IRHD methods.

PHT-960 Shore A designed Digital Durometer to test Soft Rubber, natural nitrile, Elasometric materials, Wax, Felt, Leather etc.