SPD series gear synchronous motor
Performance characteristics
Ÿ The shunt motor adopts a floating oil distribution plate structure, which will produce a certain pressure loss. Generally, the pressure difference between the inlet and the outlet is about 10-12bar. In actual use, it may also be higher than this value. The efficiency of the shunt motor is generally greater than 90%.
The shunt motor is a high-speed dynamic component. Generally, when the speed of the gear-type shunt motor is higher than 1000rpm, the synchronization accuracy is higher; the higher the speed, the greater the noise, and the gear-type shunt motor cannot be used in noise-sensitive occasions; if there is a silent requirement, Please choose a plunger type shunt motor.
Due to the influence of manufacturing errors and the compressibility of the oil, the shunt motor has synchronization errors; its synchronization error depends on the compensation valve block
to quickly compensate and eliminate at the end of the actuator stroke; the shunt motor circuit must include a makeup valve block (usually with safety Valve and anti-cavitation check valve), otherwise it will not operate normally.
Models and specifications
| model | Displacement | Minimum flow | Maximum flow | Minimum speed | Maximum speed | P1 | P2 | Maximum pressure difference between working pieces |
| ml/rev | l/min | l/min | rpm | rpm | bar | bar | bar | |
| SPD10·3.7 | 3.68 | 1.5 | 9 | 408 | 2446 | 220 | 250 | 200 |
| SPD10·4.2 | 4.2 | 1.6 | 9 | 381 | 2143 | 220 | 250 | 200 |
| SPD10·4.8 | 4.79 | 2 | 12 | 418 | 2505 | 220 | 230 | 200 |
| SPD10·5.5 | 5.5 | 2.2 | 12 | 400 | 2182 | 200 | 230 | 200 |
| SPD10·6.2 | 6.2 | 3 | 16 | 484 | 2581 | 160 | 200 | 180 |
| SPD20·6 | 6.28 | 3.5 | 16 | 557 | 2548 | 280 | 300 | 200 |
| SPD20·8 | 8.16 | 3.5 | 19 | 429 | 2328 | 280 | 300 | 200 |
| SPD20·11 | 11.3 | 5.5 | 25 | 487 | 2212 | 280 | 300 | 200 |
| SPD20·14 | 14.45 | 6 | 32 | 415 | 2215 | 260 | 290 | 200 |
| SPD20·17 | 16.95 | 8.5 | 34 | 501 | 2006 | 260 | 290 | 200 |
| SPD20·25 | 25.75 | 12 | 48 | 466 | 1864 | 220 | 260 | 150 |
| SPD20·31 | 31.4 | 14 | 60 | 446 | 1911 | 190 | 220 | 150 |
| Note: P1=rated working pressure, P2=maximum peak pressure | ||||||||
Shunt motor order
Performance characteristics: The shunt motor adopts a floating oil distribution plate structure, which will generate a certain pressure loss. Generally, the inlet and outlet pressure difference is about 10-12 bar. In actual use, it is also possible to exceed this value. The efficiency of a shunt motor is generally greater than 90%. The shunt motor is a high-speed dynamic component
