Products
Computer Controlled Vertical Universal Friction And Wear Testing Machine
Relevant Standards
This machine meets SH/T 0189-1992 Lubricant Anti-wear performance Evaluation Method (Four-ball tester method) and conforms to ASTM D4172-94 and ASTM D 5183-95.
Testing Condition
| Item | Method A | Method B |
| Test temperature | 75±2°C | 75±2°C |
| Speed of spindle | 1200±60 r/min | 1200±60 r/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 |
Technical Parameters
| 1.Test force | |
| 1.1 Axial test force working range | 1~1000N |
| 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 forceIndicating value | not bigger than ±0.2% FS |
| 2. Friction Moment | |
| 2.1 Measuring maximum friction moment | 2.5 N. 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 2.5 N. mm |
| 2.6 Return zero error of digital display device of friction | Not bigger than ±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 over 100r/min, error of spindle speed | Not bigger than ±5r/min |
| For below 100r/min, error of spindle speed | Not bigger than ±1 r/min |
| 4. Testing media | Oil, water, muddy water, abrasive material |
| 5.heating system | |
| 5.1 Heater working range | Room temperature ~260°C |
| 5.2 Disc type heater | Φ65, 220V, 250W |
| 5.3 Jacketing heater | Φ70x34, 220V, 300W |
| 5.4 Jacketing heater | Φ65, 220V, 250W |
| 5.5 Platinum thermo resistance | 1 group each (long&short) |
| 5.6 Temperature measuring control accuracy | ±2°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 * W * H ) | 600x682x1560mm |
| 13. Net weight | About 450 kg |
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