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VG0 Small Hydraulic Gear Pump

The VG0 is a fixed-displacement internal gear pump for high-pressure hydraulic systems. It features axial & radial pressure compensation, robust cast iron construction, and delivers 31.5 MPa rated pressure (max 35 MPa) with speeds up to 3,000 rpm. Known for low noise, high efficiency, and reliable performance, it suits bending machines, die-casting machines, and industrial hydraulics.
  • VG0

  • Green Hydraulic

  • VG0

  • Standard export carton/plywood case

  • Yes

  • ISO9001,CE

  • • Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)

  • 1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry

  • Key Shaft and Spline shaft

  • 1 set

Availability:
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Product Description

VG0 Gear Pump  Overview

The VG0 is a high-performance, fixed-displacement internal gear pump engineered for compact hydraulic systems that demand exceptional efficiency, low noise, and reliable high-pressure output. Featuring a robust high-strength cast iron construction with advanced pressure compensation, the VG0 is specifically designed to deliver consistent performance in both industrial and mobile applications, making it an ideal choice for servo-driven systems and environments where stable operation and quiet performance are critical.

VG0

Features and Benefits

  • High-Strength Cast Iron Construction:
    The VG0 is built with heavy-duty cast iron bodies and covers, providing superior structural rigidity compared to aluminum alternatives. This durable construction minimizes deflection and mechanical fatigue under continuous high-pressure cycles, ensuring extended service life and reliable performance in demanding conditions.
  • Axial and Radial Pressure Compensation Design:
    Utilizing advanced pressure-balanced components, the VG0 automatically optimizes internal clearances between gears and the housing. This design maintains high volumetric efficiency even at low speeds and low fluid viscosities, minimizing internal bypass and friction to deliver consistent power output across all operating temperatures.
  • Ultra-Low Noise and Pulsation Performance:
    Equipped with an internal silencing design and precision-machined gear profiles, the VG0 delivers ultra-low noise operation and minimal flow/pressure pulsation. This makes it ideal for noise-sensitive applications and servo systems requiring smooth, stable hydraulic power delivery.
  • Superior High-Pressure Capability:
    Despite its compact footprint, the VG0 is engineered to handle continuous operating pressures of up to 35 MPa (5,075 psi). Its precision-machined alloy steel gears and robust pressure compensation system allow it to power high-force actuators and complex hydraulic circuits with reliable, leak-free performance.
  • Modular Versatility and Installation Flexibility:
    The VG0 series offers a versatile range of displacements and supports standard mounting configurations, including compatibility with common industrial and mobile hydraulic standards. Its compact form factor and flexible porting options provide unmatched installation adaptability for cramped chassis environments and specialized applications.


Specifications

Model Codes

VG0(1)

Technical Data

Parameter Specification
Continuous Operating Pressure Up to 35 MPa (5,075 psi)
Peak Pressure 38 MPa (5,510 psi)
Displacement Range 3–25 cc/rev (customizable variants available)
Rated Speed Range 500–3,000 rpm
Volumetric Efficiency ≥94% at rated pressure and speed
Overall Efficiency ≥88% at rated conditions
Noise Level ≤65 dB(A) at 1,500 rpm (typical)

VG0 Hydraulic Gear Pump Installation Dimensions:


VG0(2)


Applications

Applications

The VG0 series internal gear pump delivers high-pressure, low-noise hydraulic power with robust cast iron construction and precision pressure compensation, tailored for industrial and mobile applications where reliable performance, contamination resistance, and compact integration are critical.
  • Plastic & Injection Molding Machinery: A preferred choice for servo-driven injection molding machines, blow molding equipment, and thermoforming presses. The VG0’s low noise, high efficiency, and contamination-resistant design ensure stable pressure control during high-cycle molding operations, seamlessly integrating with variable frequency drive systems for energy-efficient performance.
  • Die-Casting & Foundry Equipment: Optimized for high-pressure die-casting machines, gravity casting systems, and metal forming presses. Its high-strength cast iron body and wear-resistant components withstand the shock loads and fluid contamination common in foundry environments, delivering consistent pressure for mold clamping and metal injection.
  • Material Handling & Logistics: Ideal for forklifts, electric pallet jacks, and automated guided vehicles (AGVs). The compact VG0 design fits easily into tight spaces, while its wide speed range maintains high efficiency under varying load conditions, supporting lifting, tilting, and propulsion functions in warehouse operations.
  • Industrial Automation & Machine Tools: Widely used in CNC machine tools, hydraulic presses, and automated assembly lines. The pump’s precise flow control and low pulsation enable smooth operation of clamping, feeding, and tool-changing systems, even in continuous-duty industrial environments.
  • Specialized Mobile & Off-Road Equipment: Frequently employed in small construction machinery, agricultural implements, and utility service vehicles. The VG0 handles variable load shocks, temperature fluctuations, and fluid contamination in outdoor conditions, providing reliable power for steering, lifting, and auxiliary systems in tractors, harvesters, and utility trucks.
Vane Pump Application


Factory&FAQ

Packaging & Delivery

Shipping Methods

VG0 pumps are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.


VG0 Gear Pump  FAQ:

1. What are VG0 series gear pumps?

The VG0 is a high-performance, internal gear pump with fixed displacement, designed for industrial and mobile hydraulic systems. Built with a precision pressure-balanced design and robust cast iron construction, it is specifically engineered for compact, high-efficiency applications that require low noise, high structural integrity, and reliable power output, whether direct-mounted to industrial power take-offs or integrated into mobile equipment.

2. What makes the VG0 different from standard aluminum gear pumps?

The VG0 is built for durability and performance in demanding environments where basic external gear pumps may fail:
  • Low-Noise, Low-Pulsation Operation: Unlike conventional external gear pumps that generate high noise and flow ripple, the VG0’s internal gear design delivers smoother flow, quieter operation, and reduced vibration, making it ideal for noise-sensitive applications.

  • Superior Contamination Resistance: The pressure-balanced internal gear and bushing design provide greater tolerance to fluid contamination and thermal shock than typical external gear pumps, extending service life in harsh operating conditions.

  • High Efficiency at Variable Speeds: The VG0 maintains high volumetric and mechanical efficiency across a wide speed range, offering better energy efficiency than standard external gear pumps, especially in variable-speed or servo-driven systems.

3. What is the working pressure range of VG0 pumps?

The VG0 is a compact high-pressure specialist. Depending on the specific displacement, the series typically handles:

  • Continuous Pressure: Up to 3,000 PSI (207 bar).

  • Intermittent/Peak Pressure: Up to 3,500 PSI (241 bar).

This robust pressure rating makes the VG0 ideal for driving high-force lifting, clamping, and compaction systems on both industrial machinery and professional-grade mobile equipment.

4. Can VG0 pumps replace other brands?

Yes, the VG0 is a high-quality alternative to other premium compact internal gear pumps. It is often used as a replacement or upgrade for:

  • Vickers (Eaton) V20 Series

  • Nachi IPH Series

  • Parker PGP Series (Internal Gear Variants)

To ensure a successful swap, verify the Mounting Flange (SAE standard), Shaft Type (splined or keyed), and Displacement to match your existing system.

5. What hydraulic oil is suitable for VG0 gear pumps?

To protect the precision gears, bushings, and pressure-balanced components, the following is recommended:

  • Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) and anti-foam additive packages.

  • Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 100 to 150 SUS (20 to 30 cSt), though it can handle cold starts up to 2,000 SUS (430 cSt).

  • Filtration: Cleanliness is vital for component lubrication. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the gear and bushing surfaces.

6. What is the typical speed range of VG0 pumps?

The VG0 is optimized for a wide operating speed range to suit diverse applications:

  • Minimum Speed: 300 RPM (to maintain proper lubrication and pressure).

  • Maximum Continuous Speed: 3,000 RPM (some displacement models support up to 3,600 RPM for short durations).

This flexibility allows the VG0 to be used in both low-speed industrial systems and high-speed mobile applications, maintaining consistent performance across the range.

7. Do you provide OEM or customized services?

Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.

8. How can I get a quotation quickly

Please provide the following details:

  • Model or displacement

  • Working pressure

  • Speed

  • Quantity
    We will reply within 12 hours with a competitive quotation.


Certifications & Quality Assurance

VG0 pumps are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.



Green Hydraulic Patent Certificate

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.


2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.


3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.


4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).


Unedited footage of the Green Hydraulic Factory

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

Unedited footage of the Green Hydraulic Factory

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.

Unedited footage of the Green Hydraulic Factory

Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.

Unedited footage of the Green Hydraulic Factory3

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

Unedited footage of the Green Hydraulic Factory4

To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.

Unedited footage of the Green Hydraulic Factory5

Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.


Green Hydraulic Advantages
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