MM-W1A is a Multi-Specimen Friction and Wear Testing Machine. It is
designed for simulating, evaluating and testing almost all kinds of
oil (high-class serial hydraulic oil, lubricant, combustion oil and
gear oil) and materials (metal, plastic, coating, rubber, ceramic,
etc. ).
It is widely used in tribology field, petrol chemical industry,
mechanical, energy resource, metallurgy, space flight, enginerring
areas, college and institute, etc.
Standards:
It is a standard evaluation apparatus available in SH/T 0189-1992
"Lubricant Anti-wear Performance Evaluation Method
(Four-ball Tester Method) and confirm to ASTM D4172 - 94 and ASTM D
5183 - 95.
1.1 Axial test force working range 0~1000N;
1.2 Error of indicating value lower than 200N not bigger than ± 2N
Error of indicating value upper than 200N not bigger than 1%
1.3 Discriminability of test force not bigger than 1.5N
1.4 Relative error of long time auto hold indicating value not
bigger than± 1% FS
1.5 Return zero error of digital display device of test force
indicating value not bigger than± 0.2%FS
2. Friction Moment
2.1 Measuring maximum friction moment 2.5N. M;
2.2 Relative error of friction moment indicating value not bigger
than ± 2%;
2.3 Friction force weighing transducer 50N
2.4 Friction force arm distance 50mm
2.5 Discriminability of friction moment indicating value not bigger
than 25N. Mm;
2.6 Return zero error of digital display device of friction moment
indicating value not bigger than± 0.2%FS;
3. Range of spindle stepless speed variation
3.1 Stepless speed variation 1~2000r/min
3.2 Special deceleration system 0.05~20r/min
3.3 For over100r/min, error of spindle speed not bigger than ±
5r/min
For below 100r/min, error of spindle speed not bigger than ±
1r/min;
4. Testing media oil, water, muddy water, abrasive material;
5. Heating System
5.1 Heater working range room temperature~260 º C
5.2 Disc type heater φ65, 220V, 250W
5.3 Jacketing heater φ70*34, 220V, 300W
5.4 Jacketing heater φ65, 220V, 250W
5.5 Platinum thermo resistance 1group each(long & short)
5.6 Temperature measuring control accuracy ± 2 º C
6. Conicity of spindle of testing machine 1: 7
7. Max. Distance between spindle and lower disc ‰¥75mm
8. Spindle control mode
8.1 Manual control
8.2 Time control
8.3 Revolution Control
8.4 Friction moment control
9. Time display &control range 0s~9999min
10. Revolution display &control range 0~9999999
11. Output maximum moment of main motor 4.8N. M
12. Overall dimension(L*B*H) 600*682*1560mm
13. Net weight about 450kg&
v id="StyleTableProd">
| Item | | | | | Method A | Method B |
| Test Temperature | | | 75± 2 º C | 75± 2 º C |
| Speed of spindle | | | 1200± 60r/min | 1200± 60r/min |
| Testing time | | | | 60± 1min | 60± 1min |
| Axial testing force | | | 147N(15kgf) | 392N(40kgf) |
| Axial testing force zero point inductance | | ± 1.96N(± 0.2kgf) | ± 1.96N(± 0.2kgf) |
| Standard steel-ball specimen | | φ 12.7mm | φ 12.7mm |
&
