HG is fixed displacement and intermittent compensation internal gear pump whcih widely used in mine truck, sanitation vehicle, servo system of injection molding machine, forging machinery….
Front body (1), Middle housing (2), Rear Cover (3, Shaft bearing (4), Annular gear (5), Sliding bearing (6), Slide plate (7), Locating rod (8), Crescent side plate (9), Crescent main plate (19) and Plastic rod (11).


Model Code

Dimension






Technical Data
Single pump series: HG0/HG1/HG2
Double pump series: HG00/HG10/HG11/HG21/HG22
Displacement specification: 8 ~ 160 mL/r
Maximum pressure: 31.5 MPa
Maximum speed: 3000 r/min
| MODEL | SIZE | DISP. cc/rev |
PRESSURE bar | ROTATING SPEED r/min | WEIGHT kg | ||
|---|---|---|---|---|---|---|---|
| Rated | Max | Max | Min | ||||
| HGO | 8 | 8.0 | 250 | 300 | 3000 | 600 | 4.4 |
| 10 | 10.0 | 315 | 350 | 3000 | 600 | 4.6 | |
| 13 | 13.3 | 315 | 350 | 3000 | 600 | 4.9 | |
| 16 | 16.0 | 315 | 350 | 3000 | 600 | 5.2 | |
| 20 | 20.0 | 315 | 350 | 3000 | 600 | 5.6 | |
| HG1 | 25 | 253 | 315 | 350 | 3000 | 200 | 14.5 |
| 32 | 32.7 | 315 | 350 | 3000 | 200 | 15 | |
| 40 | 40.1 | 315 | 350 | 3000 | 200 | 16 | |
| 50 | 50.7 | 315 | 350 | 3000 | 200 | 17 | |
| 63 | 63.7 | 315 | 350 | 3000 | 200 | 18.5 | |
| HG2 | 80 | 81.4 | 315 | 350 | 3000 | 200 | 43.5 |
| 100 | 1002 | 315 | 350 | 3000 | 200 | 45.5 | |
| 125 | 125.3 | 315 | 350 | 3000 | 200 | 48 | |
| 160 | 162.8 | 210 | 260 | 3000 | 200 | 52 | |
Application
Widely used in mine truck, Sanitation vehicle, injection molding machine, Forging machinery…
Having been widely used in injection molding machine’ servo system, Eternal’s products, including Vane Pump, Servo Motor, Servo System Drive, HG internal gear pump, Operation Manual, Pressure Sensor, Linear Scale developed successively also have a high market share.
Rexroth/Sunny Type HG series internal gear pump can cooperate with servo motor to effectively realize system energy saving; WE and WEH directional valves can respond to injection, mold opening and closing, and other actions quickly and accurately; DB/DBW safety valve can effectively guarantee the safe operation of the hydraulic system.
Size of HG Servo Pump