The computer control automatic four-ball friction testing machine, in the form of slide friction, is used for the loading capacity evaluation of lubricants in the high pressure point contact condition. It can test the maximum nonseizure load PB, sintered load PD and composite wear value ZMZ of lubricants .The four-ball friction test machine can also be used as lubricant for long time wear resistance test, determination of friction coefficient, recording friction and temperature curve. It also can measure the dimension of the wear scar and display,measurement and recording the wear scar on the PC screen.The wear resistance of metallic materials or non-metallic materials can also be studied with special attachments. 

The product is suitable for the following standards:

ASTM D2266-01 Test method for friction and wear of lubricating oil (four-ball method)

ASTM D2783-2003 (2009)  four-ball bearing capacity of four balls of lubricants

GB/T12583-98  Determination of extreme pressure performance of lubricants (four-ball machine method);

GB3142-82,Determination of the carrying capacity of lubricants (four-ball method);

SH/T0189-92,Determination of oil abrasion resistance (four-ball machine method);

SH/T0202-92,The method of determination of extreme pressure of grease (four-ball machine method);

SH/T0204-92,Determination of resistance to abrasion of grease (four-ball machine method).

Features

1. The instrument uses imported compressor cascade closed refrigeration technology, refrigeration depth deep, cooling fast

2. The cold bath metal bath as the medium does not need alcohol

3. Gravity tilt automatic timing device, automatic alarm device

4. Digital set temperature and the actual temperature, PID temperature control makes temperature control more accurate.

Technical Parameters