Tall Frame TWIN Digital Rockwell Hardness Testers

Load Cell, Closed Loop, Rockwell Hardness Tester!

900-440TB 15.7” Vertical Capacity!

900-440XTB 24” Vertical Capacity!

Cast Iron Body! w/Touch Screen Functions

This digital 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 flash drive. The 900-420 digital Superficial Rockwell hardness tester offers programmable scale conversions, dwell times, statistical capabilities and test counter. Capable of testing in all of the Superficial Rockwell hardness scales.

Direct Loading Method With Load-Cell Instead Of Dead Weight System. High Speed Test Cycle and Extremely Accurate Loading Control

Key performance parameters:

• Preload： Rockwell:1N（10kgf） Superficial: 29.42N (3kgf)
• Total test force： Rockwell:4N(60kgf)，980.7N(100kgf)，1471N(150kgf),
  • Superficial Rockwell: 15kgf(147.1N)、30kgf (294.2N)、45kgf (441.3N)
• Scales： HRA，HRB，HRC，HRD，HRE，HRF，HRG，HRH，HRK, HRE, HRL，HRM，HRP，HRR，HRS，HRV HR15N、HR30N、HR45N、HR15T、HR30T、HR45T、HR15W、HR30W、HR45W、HR15X、HR30X、HR45X、HR15Y、HR30Y、HR45Y
• Load dwell duration： 2～50s
• Resolution ：0.1HR
• Display：High definition backlight LCD
• Operation：Menu selectable push buttons
• Auxiliary functions：Upper/lower limits setting& alarm,
  • Scale conversions:  HV & HB
• Data output: USB memory stick
• Testing Capacity:
  • 900-440TB Vertical: 15.7”  Throat Depth: 7.87”
  • 900-440XTB Vertical: 24.0”  Throat Depth: 7.87”
• Power supply: single phase, AC, 110V, 50～60Hz