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High-Performance VG Internal Gear Pump for Servo Systems - Top China Suppliers and Factory Quality
Main Features
- ✓ Adopting axial and radial pressure compensation design to maintain high volumetric efficiency even at low speed and low viscosity.
- ✓ Ultra-low noise, using high-strength cast iron and a unique internal noise reduction design, make the noise lower.
- ✓ Very low flow and pressure pulsation, stable flow and pressure output can still be maintained at low speeds.
- ✓ High pressure design, the maximum working pressure can reach 35MPa.
- ✓ Wide speed range, the highest speed can reach 3000r/min.
- ✓ Can be combined arbitrarily to form a double pump.
- ✓ It is not sensitive to oil pollution and has a long service life.
- ✓ It can be widely applied to hydraulic systems in industries such as plastic machines, shoe machines, die-casting machinery and forklifts, and especially suitable for energy-saving systems driven by servo inverters.
Model Designation
| VG1 | -63 | R | E | W | -A1 |
| Series | ml/r Displacement |
Rotation | Shaft type | Sealing material | Design number |
| VGHO | 003、004、005 | Viewed from shaft end of pump R=Right hand for clockwise L=Left hand for counter-clockwise |
K=Straight key shaft | W=(Buna)NBR V=FKM |
1K |
| VG0 | 8、10、13、16、20、25、28 | E=Straight key shaft R=SAE Spline shaft |
A1 | ||
| VG1 | 25、32、40、50、63、50H、63H | ||||
| VG2 | 80、100、125、145、160 |
Technical Data
| Series | ml/r Displacement |
ml/r Theory Displacement |
Mpa Rated Pressure |
Mpa Max.pressure |
r/min Max.speed |
kg Weight |
| VGHO | 003 | 3 | 33 | 40 | 4200 | 4.6 |
| 004 | 4 | 4.8 | ||||
| 005 | 5 | 4.8 | ||||
| VGO | 8 | 8.2 | 31.5 | 35 | 3000 | 4.6 |
| 10 | 10.2 | 4.8 | ||||
| 13 | 13.3 | 4.9 | ||||
| 16 | 16.0 | 5.2 | ||||
| 20 | 20.0 | 25 | 30 | 5.6 | ||
| 25 | 24.0 | 6.0 | ||||
| 28 | 27.0 | 6.4 | ||||
| VG1 | 25 | 25.3 | 31.5 | 35 | 14.5 | |
| 32 | 32.7 | 15 | ||||
| 40 | 40.1 | 16 | ||||
| 50 | 50.7 | 17 | ||||
| 63 | 63.7 | 25 | 30 | 18.5 | ||
| VG2 | 80 | 81.4 | 31.5 | 35 | 43.5 | |
| 100 | 100.2 | 45.5 | ||||
| 125 | 125.3 | 48 | ||||
| 145 | 145.2 | 25 | 28 | 50 | ||
| 160 | 162.8 | 21 | 26 | 52 |
| Model | L1 | L2 | A | B | C | D | E | F | G |
| VGO-08 | 107 | 54 | 38.1 | 17.5 | φ13 | M8 Depth 13 | 47.6 | 22.2 | φ19 |
| VGO-10 | 111 | 56 | 52.4 | 26.2 | |||||
| VG0-13 | 117.5 | 59.25 | |||||||
| VGO-16 | 123 | 62 | |||||||
| VG0-20 | 131 | 66 | 47.6 | 22.2 | φ18 | M10 Depth 15 | 58.7 | 30.2 | φ26 |
| VG0-25 | 139 | 70 | φ19 | φ28 | |||||
| VG0-28 | 145 | 73 |
| Model | L1 | L2 | A | B | |
| VG1-25 | 139 | 73 | 47.6 | 22.2 | φ18 |
| VG1-32 | 146 | 76.5 | |||
| VG1-40 | 153 | 80 | 52.4 | 26.2 | φ20 |
| VG1-50 | 163 | 85 | |||
| VG1-63 | 177 | 92 | |||
| VG1-50H | 163 | 85 | see page 11 oil port size | ||
| VG1-63H | 177 | 92 | |||
| Model | L1 | L2 | A | B | D | E | F | G | H | |
| VG2-80 | 204 | 109.5 | 69.9 | 35.7 | φ32 | M12 Depth 20 | 77.8 | 42.9 | φ51 | M12 Depth 20 |
| VG2-100 | 213 | 114 | ||||||||
| VG2-125 | 225 | 120 | 79.4 | 36.5 | φ38 | M16 Depth 25 | 88.9 | 50.8 | φ63.5 | |
| VG2-145 | 235.5 | 124.75 | ||||||||
| VG2-160 | 243 | 129 | 106.4 | 61.9 | φ76 | M16 Depth 25 |
| Model | Specifications | S | A1 | B1 | C1 | Corresponding flange |
P | A2 | B2 | C2 | Corresponding flange |
| VGO | 8 | 19 | 47.6 | 22.2 | M10 Depth 15 |
F06 | 13 | 38.1 | 17.5 | M8 Depth 13 |
F04 |
| 10 | 52.4 | 26.2 | F08 | ||||||||
| 13 | |||||||||||
| 16 | |||||||||||
| 20 | 26 | 58.7 | 30.2 | F10 | 18 19 |
47.6 | 22.2 | M10 Depth 15 |
F06 | ||
| 25 | 28 | ||||||||||
| 28 | |||||||||||
| VG1 | 25 | 32 | 58.7 | 30.2 | M10 Depth 17 |
F10 | 18 | 47.6 | 22.2 | M10 Depth 17 |
F06 |
| 32 | |||||||||||
| 40 | 20 | 52.4 | 26.2 | F08 | |||||||
| 50 | |||||||||||
| 63 | |||||||||||
| 50(H) | 38 | 69.9 | 35.7 | M12 Depth 20 |
F12 | ||||||
| 63(H) | 51 | 77.8 | 42.9 | F16 | |||||||
| VG2 | 80 | 51 | 77.8 | 42.9 | M12 Depth 20 |
F16 | 32 | 69.9 | 35.7 | M12 Depth 20 |
F12 |
| 100 | |||||||||||
| 125 | 63.5 | 88.9 | 50.8 | F20 | 38 | 79.4 | 36.5 | M16 Depth 25 |
F14 | ||
| 145 | |||||||||||
| 160 | 76 | 106.4 | 61.9 | M16 Depth 25 |
F24 |
Frequently Asked Questions (FAQ)
Q1: What is the maximum working pressure of the VG series internal gear pump?
The VG series pump features a high-pressure design, allowing the maximum working pressure to reach up to 35MPa.
Q2: How does the pump maintain high efficiency at low speeds?
It adopts a specialized axial and radial pressure compensation design to maintain high volumetric efficiency even under low speed and low viscosity conditions.
Q3: What makes the VG series internal gear pump operate with ultra-low noise?
The pump is constructed using high-strength cast iron and incorporates a unique internal noise reduction design to ensure exceptionally quiet operation.
Q4: Can these gear pumps be combined for multi-pump systems?
Yes, the VG series internal gear pumps can be combined arbitrarily to form a double pump configuration to meet various hydraulic system requirements.
Q5: What are the primary applications of the VG series gear pumps?
They are widely used in hydraulic systems for plastic machines, shoe machines, die-casting machinery, and forklifts. They are particularly suitable for energy-saving systems driven by servo inverters.
Q6: What is the maximum speed capability of these pumps?
The VG series offers a wide speed range, with maximum speeds reaching up to 3000 r/min for standard models, and up to 4200 r/min for the VGHO series.