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SGP2 Shimadzu Fluid Gear Pump

The SGP2 is a high‑pressure external gear pump designed by Shimadzu for hydraulic systems. It features a three‑piece cast iron construction, axial clearance automatic compensation, and radial hydraulic balance, delivering high efficiency, low noise, and long service life. Displacement ranges from 20.3 to 52.8 cm³/r, with a rated pressure up to 24.5 MPa (245 bar) and max speed 3,000 rpm. Widely used in forklifts, construction machinery, and industrial vehicles.

Model:
SGP2
Brand:
Green Hydraulic
Model Number:
SGP2
Packaging Details:
Standard export carton/plywood case
Testing Before Shipment:
Yes
Cartification:
ISO9001，CE
Markets:
• Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)
Application:
1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry
Shaft Type:
Key Shaft and Spline shaft
MOQ:
1 set


Availability:



Inquiry

Product Description

SGP2 Gear Pump Overview

The Shimadzu SGP2 is a high-performance, fixed-displacement external gear pump engineered for demanding hydraulic systems that require high efficiency, low noise, and reliable high-pressure performance. Featuring a robust three-piece cast iron construction with advanced axial compensation, the SGP2 delivers superior durability and consistent power output, making it ideal for direct mounting in mobile equipment, forklifts, and industrial machinery where compact size and dependable operation are critical.

SGP2(0)

Features and Benefits

Rugged Three-Piece Cast Iron Construction:
The SGP2 is built with heavy-duty cast iron bodies and covers, offering exceptional structural rigidity and resistance to mechanical fatigue under high-pressure conditions. This design minimizes deflection and ensures stable performance and extended service life in harsh operating environments.
High-Pressure Axial Clearance Compensation:
Utilizing advanced pressure-balanced wear plates, the SGP2 automatically optimizes internal clearances to reduce fluid bypass and friction. This maintains high volumetric efficiency across varying pressures and temperatures, preventing premature wear and ensuring consistent performance over time.
Advanced Pressure-Balanced Bearing Design:
The pump features pressure-balanced bushings that distribute load evenly across bearing surfaces, significantly improving tolerance to fluid contamination and thermal shock. This enhances reliability in continuous-duty cycles and protects against premature failure in intensive use.
Superior High-Pressure Capability:
Despite its compact footprint, the SGP2 is rated for continuous operating pressures up to 24.5 MPa (245 bar). Precision-machined high-strength gears and components enable smooth, reliable flow for high-force actuators and complex hydraulic circuits.
Modular Versatility and Installation Flexibility:
The SGP2 series offers displacements ranging from 20.3 to 52.8 cm³/rev, supporting standard mounting configurations for versatile integration. Its compact, space-saving design is optimized for tight chassis environments, making it suitable for a wide range of mobile and industrial applications.

Specifications

Model Codes

Technical Data

Parameter	Specification
Pump Type	External gear pump, fixed displacement
Displacement Range	20.3 to 52.8 cm³/rev (20/23/25/27/32/36/40/44/48/52 sizes)
Rated Pressure	24.5 MPa (245 bar / 3,550 psi)
Intermittent Max Pressure	29.4 MPa (294 bar / 4,265 psi)
Operating Speed Range	400 – 3,000 rpm
Construction	3-piece cast iron body, pressure-balanced bushings, axial compensation wear plates
Mounting Flange	Standard SAE “A” and “B” compatible
Port Options	Dual-port design (side and rear ports available)
Fluid Viscosity Range	10 – 500 cSt (recommended 20 – 100 cSt for optimal efficiency)
Fluid Temperature Range	-20°C to +80°C (standard hydraulic oil)
Seal Material	Nitrile (NBR) standard; optional Viton for high-temperature applications
Key Features	Radial hydraulic balance, low noise, high volumetric efficiency, contamination-resistant design
Typical Applications	Forklifts, construction machinery, industrial vehicles, material handling equipment

SGP2 Hydraulic Gear Pump Installation Dimensions

Applications

Applications

The Shimadzu SGP2 series provides a high-efficiency, high-pressure hydraulic power solution specifically engineered for compact mobile and industrial systems where reliable performance and long service life are critical.

Material Handling Equipment:
A preferred choice for forklifts, reach trucks, and pallet stackers, where the SGP2’s compact design and high efficiency deliver consistent lifting and tilting power under continuous-duty cycles.
Construction & Road Machinery:
Optimized for mini excavators, skid-steer loaders, and small hydraulic cranes, where the pump’s robust cast iron construction and pressure-balanced design handle shock loads and high-frequency operation reliably.
Agricultural Equipment:
Widely used in tractors, harvesters, and farm implements (such as hydraulic steering systems and lifting mechanisms), offering stable performance even with contaminated fluids and variable operating temperatures.
Industrial & Stationary Hydraulics:
Ideal for machine tools, press systems, and conveyor drives, where the pump’s low noise, consistent flow, and high volumetric efficiency ensure smooth, precise operation.
Specialized Mobile Vehicles:
Commonly employed in utility vehicles, aerial work platforms, and light commercial trucks, where the SGP2’s compact footprint and high power-to-weight ratio enable easy integration into tight chassis spaces.

Factory&FAQ

Packaging & Delivery

SGP2 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.

SGP2 Gear Pump FAQ

1. What are SGP2 gear pumps

The Shimadzu SGP2 is a high-performance, fixed-displacement external gear pump, designed for demanding hydraulic systems requiring high efficiency and long service life. Featuring a rugged three-piece cast iron construction with pressure-balanced bushings and axial compensation, it is engineered for compact mobile and industrial equipment applications.

2. What makes the SGP2 different from standard gear pumps

The SGP2 outperforms typical aluminum pumps in durability and pressure capability:

Rugged Cast Iron Housing: Unlike aluminum pumps that can deflect under high pressure, the SGP2’s cast iron body maintains tight internal clearances, reducing wear and extending service life in heavy-duty cycles.
Pressure-Balanced Bushing Design: It uses advanced pressure-balanced bushings that distribute loads evenly, offering superior resistance to fluid contamination and thermal shock compared to standard roller-bearing pumps.
High-Pressure Efficiency: With axial compensation technology, the SGP2 automatically adjusts clearances to minimize internal leakage, maintaining high volumetric efficiency even at maximum operating pressures.

3. What is the working pressure range of SGP2 pumps

The SGP2 is a high-pressure compact gear pump. Depending on the specific model, the series typically handles:

Continuous Pressure: Up to 24.5 MPa (245 bar / 3,550 PSI).
Intermittent/Peak Pressure: Up to 29.4 MPa (294 bar / 4,265 PSI).

This robust pressure rating makes the SGP2 ideal for powering high-force actuators and complex hydraulic circuits in construction and material handling equipment.

4. Can SGP2 pumps replace other brands

Yes, the SGP2 is a high-quality alternative to other premium gear pumps. It is often used as a replacement or upgrade for:

Shimadzu SGP1 Series (as a higher-performance successor).
Nachi IPH Series external gear pumps.
Parker PGP Series gear pumps.

To ensure a successful swap, verify the Mounting Flange (SAE A or B), Shaft Type, Displacement (cc/rev), and Port Configuration to match your existing system.

5. What hydraulic oil is suitable for SGP2 gear pumps

To protect the precision bushings and hardened steel gears, the following is recommended:

Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) and anti-oxidation additive packages.
Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 20 to 100 cSt, though it can handle cold starts down to 10 cSt.
Filtration: Cleanliness is critical for long bushing life. A minimum filtration level of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the internal components.

6. What is the typical speed range of SGP2 pumps

The SGP2 series operates within a wide speed range to suit various applications:

Minimum Speed: 400 rpm (for stable flow at low pressure).
Maximum Continuous Speed: 3,000 rpm (depending on displacement and fluid viscosity).

Operating within this range ensures optimal lubrication, prevents cavitation, and maintains high efficiency.

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

SGP2 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.

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.

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.

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.