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SGP300 Single Gear Pump

The Shimadzu SGP300 Series is a robust, high-performance external gear pump designed for large-capacity hydraulic systems that require high pressure and high reliability. Featuring a high-strength aluminum alloy body, the SGP300 is engineered to provide superior volumetric efficiency and durability, even under the most demanding heavy-duty operating conditions.
  • SGP300

  • Green Hydraulic

  • SGP300

  • 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

SGP300 Gear Pump  Overview

The Shimadzu SGP300 is a heavy-duty, fixed-displacement external gear pump engineered for high-capacity hydraulic systems that demand superior power and long-term reliability. Built with a high-strength aluminum alloy body, the SGP300 series is designed to bridge the gap between lightweight design and heavy-duty performance. It is specifically optimized for large mobile equipment where high flow rates and high-pressure stability are essential, ensuring consistent hydraulic performance under the most grueling operational cycles.

Features and Benefits

  • High-Strength Cast Aluminum Construction:
    The SGP300 utilizes a premium, high-tensile aluminum alloy housing that offers exceptional structural integrity and excellent heat dissipation. This allows the pump to maintain a lightweight profile while safely managing the high mechanical stresses associated with large-capacity output.

  • Enhanced Pressure-Loading Plate System:
    Featuring an advanced axial pressure compensation design, the SGP300 uses specialized loading plates to minimize internal leakage. This ensures the pump maintains maximum volumetric efficiency even during high-pressure spikes and across a wide range of oil viscosities.

  • Heavy-Duty Internal Components:
    Equipped with high-precision, induction-hardened gears and high-load capacity bearings, the SGP300 is built to resist wear and fatigue. Its internal architecture is specifically designed to handle the heavy radial and axial loads common in large-scale hydraulic circuits.

  • Low Noise and High Smoothness:
    Despite its large capacity, the SGP300 features an optimized gear tooth geometry that reduces flow pulsation and vibration. This results in remarkably quiet operation for a pump of its size, improving the operator environment and system longevity.

  • Scalable Performance for Large Equipment:
    The SGP300 series offers a significant range of larger displacements, providing the necessary flow for heavy-duty lifting, steering, and auxiliary functions in oversized industrial vehicles.

Model Codes

SGP300(1)

Technical Data

Model Number Theoretical Displacement (cc/rev) Rated Pressure (MPa / bar) Max. Peak Pressure (MPa / bar) Max. Speed (min⁻⊃1;) Min. Speed (min⁻⊃1;)
SGP300-20 20 20.6 / 206 24.5 / 245 3000 500
SGP300-25 25 20.6 / 206 24.5 / 245 3000 500
SGP300-28 28.1 20.6 / 206 24.5 / 245 3000 500
SGP300-32 31.8 20.6 / 206 24.5 / 245 3000 500
SGP300-36 36.3 20.6 / 206 24.5 / 245 3000 500
SGP300-40 40 20.6 / 206 24.5 / 245 2500 500
SGP300-45 45.4 17.7 / 177 20.6 / 206 2500 500
SGP300-52 52.3 17.7 / 177 20.6 / 206 2500 500

SGP300 Hydraulic Gear Pump Installation Dimensions

SGP300(2)

Applications

The SGP300 series is the preferred power source for large-scale mobile hydraulics and high-flow industrial systems:
  • Heavy-Duty Forklifts & Reach Stackers: The standard choice for 5-ton to 10-ton (and above) forklifts, providing the high-flow capacity required for heavy mast lifting and precision steering.

  • Large Construction Machinery: Ideal for mid-sized excavators, wheel loaders, and graders where robust hydraulic power is needed for multiple simultaneous actuator movements.

  • Waste Management & Utility Trucks: Frequently used in large refuse compactors and skip loaders that require high pressure to handle dense loads and frequent duty cycles.

  • Forestry & Mining Equipment: Optimized for the harsh environments of log loaders and underground utility vehicles, offering reliable performance under extreme dust and temperature fluctuations.

  • Heavy Industrial Power Units: Suitable for large hydraulic presses, balers, and dockside machinery that demand consistent flow at high operational pressures.

Vane Pump Application



Packaging & Delivery

SGP300 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.


SGP300 Gear Pump  FAQ

1. What are SGP300 gear pumps

The SGP300 is a heavy-duty, large-displacement external gear pump from Shimadzu. It is designed for hydraulic systems that require  higher flow rates  than the SGP1 series, while maintaining a high-strength aluminum alloy construction. It is the go-to power source for heavy-duty lifting and steering in large industrial vehicles.

2. What makes the SGP300 different from SGP1 gear pumps

While both belong to Shimadzu's high-efficiency lineup, the SGP300 is built for "scale":
  • Larger Capacity: It covers displacements up to 52 cc/rev, nearly double the range of the standard SGP1.

  • Heavy-Duty Internal Design: To handle the increased flow and torque, the SGP300 features reinforced internal bearings and optimized pressure-loading plates to ensure stability under heavy loads.

  • Better Heat Dissipation: The larger aluminum body helps manage the thermal energy generated by high-flow hydraulic systems more effectively.

3. What is the working pressure range of SGP300 pumps

The SGP300 is engineered for high-pressure durability:
  • Rated Pressure: Up to 20.6 MPa (3,000 PSI) for models up to 40cc.

  • Max. Peak Pressure: Up to 24.5 MPa (3,550 PSI).

  • Note: For very large displacements (45cc and 52cc), the rated pressure is typically adjusted to 17.7 MPa to ensure maximum service life.

4. Can SGP300 pumps replace other brands

Yes. The SGP300 is frequently used in  tandem or multiple pump configurations (e.g., SGP300 + SGP1). This allows a single drive shaft to power multiple hydraulic circuits, such as combining high-flow lifting functions with precision steering or auxiliary operations.
5. Which equipment typically uses SGP300 pumps?
Due to its robust flow output, it is the standard OEM choice for:
  • Heavy Forklifts: 5-ton to 10-ton capacity trucks (e.g., Toyota, Komatsu, Mitsubishi).

  • Construction Equipment: Wheel loaders and small-to-midsize excavators.

  • Refuse Trucks: Large-scale waste compacting and lifting systems.

5. What hydraulic oil is suitable for SGP300 gear pumps

To protect the high-precision gears and pressure-loading plates, the following is recommended:
  • Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) additive packages.

  • Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 20 to 100 cSt (mm²/s), with cold starts handled up to 1,000 cSt.

  • Filtration: Cleanliness is vital. A minimum filtration of ISO 4406 19/16 is recommended to prevent premature internal wear and maintain peak efficiency.

6. What is the typical speed range of SGP300 pumps

The SGP300 series is designed for versatility in engine-driven or high-power motor setups:
  • Minimum Speed: Typically 500 RPM.

  • Maximum Speed: Up to 3,000 RPM (depending on displacement size and inlet pressure conditions).

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

SGP300 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.How does the variable displacement work?

The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.


2.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.


3.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.


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

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


5.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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