It is used for measuring the compressibility of disc brake pads and measuring the thermal expansion (optional).
It can test the data in the following standard and draw the curve.
Compressibility: ISO 6310-81, TL-VW110-2.5,
Thermal expansion: ISO/TR 7882-86
| No. | Description | Unit | Specification |
| 1 | Model | SJ221 | |
| 2 | Stroke of hydraulic cylinder | mm | 60 |
| 3 | Diameter of hydraulic cylinder piston | mm | 90 |
| 4 | Displacement transducer stroke | mm | 20 |
| 5 | Measuring precision | mm | 0.01 |
| 6 | Loading range | MPa | 0~16(0~10t) |
| 7 | Rate of loading (serve control) | mm | 1~70 kN/sec |
| 8 | heater rated output | 350W*9 | |
| 9 | Heating temperature | ºC | ≤500 |
| 10 | Electric supply | 3 phases; 380V; 60Hz; 4.5kW | |
| 11 | Cooling water | 1~2bar; 10L/min | |
| 12 | Ambient temperature range | ºC | 10~40 |




