The various instruments in the Rockwell product group are used for classical Rockwell methods (load: 60 - 150 kg), Superficial Rockwell methods (load: 15 - 45 kg) and combinations of Rockwell and Superficial Rockwell methods (load: 15 - 150 kg).

These instruments offer various levels of operating convenience:

• models with one-button operation for simple test situations (Type AK, Type BK)
• models with line display and integrated conversion functions for standard applications (Type LK)
• models with touch-screen, expanded functions and maximum ease of use for a wide range of test situations; used for batch-testing (Type SK) and production control (Type TK).

A special feature of Zwick Rockwell hardness testing instruments is an indentor carrier for testing at hard-to-reach measuring locations. Other benefits include robust construction with play-free, ball/lead screw and test area height up to 292 mm for testing larger workpieces, plus an integrated RS232 interface for connection to testXpert®.