Guangzhou Seric Hydraulic Co., Ltd.
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QT Series Eternal Hydraulic Internal Gear Pump
QT internal gear pump is a high-performance, high-pressure internal gear pump, widely used in servo systems and other hydraulic systems. With a proven global track record over time, the QT line has been further improved through structural adjustments. Its specially designed gear geometry lowers noise, enabling quiet operation even under high pressure and rotational speeds.
| Model | Capacity (ml/r) | Power (km) | Max. speed (r/min) | Model | Capacity (ml/r) | Power (km) | Max. speed (r/min) | Model | Capacity (ml/r) | Power (km) | Max. speed (r/min) |
| QT31-20 | 20 | 4.5 | 3000 | QT32-10 | 10 | 4.6 | 3000 | QT33-10 | 10 | 8.3 | 3000 |
| QT31-25 | 25 | 5.6 | QT32-12.5 | 12 | 5.8 | QT33-12.5 | 12 | 10.4 | |||
| QT31-31.5 | 32 | 6.9 | QT32-16 | 16 | 7.1 | QT33-16 | 16 | 12.8 | |||
| QT41-40 | 40 | 8.9 | 2000 | QT42-20 | 20 | 9.2 | 3000 | QT43-20 | 20 | 16.5 | 3000 |
| QT41-50 | 50 | 11 | QT42-25 | 25 | 11.4 | QT43-25 | 25 | 20.4 | |||
| QT41-63 | 63 | 14.1 | QT42-31.5 | 32 | 14.6 | QT43-31.5 | 32 | 26.1 | |||
| QT51-80 | 80 | 17 | 2000 | QT52-40 | 40 | 17.7 | 2000 | QT53-40 | 40 | 31.6 | 2000 |
| QT51-100 | 100 | 21.7 | QT52-50 | 50 | 22.6 | QT53-50 | 50 | 40.5 | |||
| QT51-125 | 125 | 27.1 | QT52-63 | 63 | 28.3 | QT53-63 | 63 | 50.7 | |||
| QT61-160 | 160 | 34 | 1500 | QT62-80 | 80 | 35.6 | 2000 | QT63-80 | 80 | 63.7 | 2000 |
| QT61-200 | 200 | 42.5 | QT62-100 | 100 | 44.6 | QT63-100 | 100 | 80 | |||
| QT61-250 | 250 | 52.1 | QT62-125 | 125 | 54.9 | QT63-125 | 125 | 98.4 |
