TRS : automatic weight selection with automatic zero setting dial gauge.
TRS-150 : automatic weight selection with automatic zero setting dial gauge.
Rockwell cum Brinell Combined System
TRS : automatic weight selection with automatic zero setting dial gauge.
TRB - 250 : arrangement similar to trs with two additional weights of 187.5 kgf and 250 kgf for brinell tests. On this machine small pis having dia 2 mm can be tested as plunger is guided with a set of six bearings
Rockwell cum Rockwell Superficial Combined system :
TSM : this hardness tester is similar to trb-250 machine in construction and with automatic weight selection. This is useful for carrying rockwell and rockwell superficial tests. The rockwell superficial method is useful for checking hardness of very thin sheets and surface hardness