SGP1 SGP2 Shimadzu Series Hydraulic Gear Pump | SGP1A27 SGP2A25 SGP1A25 | High Pressure

Chengyuan Hydraulic SGP series hydraulic gear pumps (including SGP1A and SGP2A) are high-pressure external gear pumps designed for premium performance. Engineered to meet Shimadzu technical standards, these pumps offer 100% original-place interchangeability. We emphasize reliability through our 100% simulated condition testing protocol, ensuring each pump delivers peak volumetric efficiency and stability under the most demanding industrial environments.

Technical Specifications (Bulleted List)

• Model Codes: SGP1A27A2H9-R308C, SGP2A25R593, SGP1A25F2H9-L288C

• Displacement Range: $25\text{ cc/rev}$ to $27\text{ cc/rev}$ (SGP1/SGP2 full range $16\text{–}52\text{ cc}$ available)

• Rated Pressure: $21\text{ MPa (210 bar)}$

• Peak Pressure: $25\text{ MPa (250 bar)}$

• Rated Speed: $500\text{–}3500\text{ rpm}$

• Rotation: Right (Clockwise) or Left (Counter-clockwise) available

• Body Material: High-tensile Die-cast Aluminum Alloy

• Mounting Type: Standard SAE or OEM-specific flange options

Key Technical Advantages

• High-Tensile Aluminum Housing: The use of premium-grade die-cast aluminum ensures a lightweight design with excellent thermal dissipation and structural integrity against high-pressure cycles.

• Pressure-Balanced Side Plates: Features a floating side plate design that automatically compensates for clearances based on working pressure, maintaining maximum Volumetric Efficiency throughout the service life.

• DU Bushing Technology: Equipped with high-performance self-lubricating DU bushings, providing superior shaft support and extended durability even under high speeds and marginal lubrication.

• Precision-Machined Gears: The gear sets undergo precise grinding and heat treatment, ensuring smooth mesh engagement, which results in a Low Noise Design and minimized pressure ripples.

Application Areas

• Material Handling: Primary hydraulic pumps for Toyota, TCM, Komatsu, and Nichiyu forklifts.

• Construction Machinery: Auxiliary hydraulic power for mini-excavators and skid-steer loaders.

• Agricultural Equipment: Hydraulic control circuits for modern tractors and harvesters.

Expert Maintenance Tips

• Oil Cleanliness: To protect precision side plates and gear surfaces, system filtration should be maintained at $10\text{–}25\text{ }\mu\text{m}$ (ISO 4406 19/17/14).

• System Priming: Always fill the pump with filtered hydraulic oil through the inlet port before the initial startup to prevent catastrophic dry-running wear.

• Rotation Verification: Double-check the L/R orientation code before installation; incorrect rotation direction will lead to immediate seal failure and internal damage.