Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of Rexroth PGH5 in China. We warmly welcome you to wholesale bulk Rexroth PGH5 for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
▔▔
The Rexroth PGH5 series is a high-performance, internal gear pump designed for high-pressure, low-noise, and ultra-precise hydraulic system control. Operating as a constant-displacement pump, the PGH5 series delivers dynamic fluid power with exceptionally low pressure pulsation, making it an essential solution for high-end industrial machinery. It is engineered specifically for demanding closed-loop and open-loop electro-hydraulic control applications, such as injection molding, metal forming presses, variable-speed servo-drive systems, and heavy-duty industrial automation where high continuous pressure and fine flow control are required.
Key Advantages
▔▔
- High Continuous Operating Pressure: Capable of sustaining continuous working pressures up to 350 bar and peak pressures up to 380 bar, ensuring exceptional power density.
- Hydrodynamic and Hydrostatic Compensation: Features axial and radial clearance compensation mechanisms to maintain maximum volumetric efficiency across varying operating temperatures and pressures.
- Extremely Low Operating Noise: Optimized internal gear geometry significantly reduces fluid pulsation and noise emissions compared to standard external gear or vane pumps.
- High Efficiency and Energy Savings: High overall efficiency (volumetric and mechanical) optimizes power usage, rendering it ideal for energy-efficient variable-speed servo-pump systems.
- Wide Viscosity and Speed Range: Operates reliably across broad speed ranges and fluid viscosities, ensuring smooth startup even under cold oil conditions.
Technical Specifications
▔▔
| Parameter Name | Unit | Specification / Value |
| Pump Series | - | Rexroth PGH5 Series |
| Displacement Options | cm3/rev | 63 / 80 / 100 / 125 / 160 |
| Maximum Continuous Pressure | bar | Up to 350 |
| Peak Operating Pressure | bar | Up to 380 |
| Minimum Operating Speed | rpm | 200 |
| Maximum Operating Speed | rpm | 2000 to 3000 (depending on displacement size) |
| Operating Viscosity Range | mm2/s | 10 to 300 (permissible range: 10 to 2000) |
| Fluid Temperature Range | deg C | -10 to +80 |
| Cleanliness Class (ISO 4406) | - | Class 19/17/14 or cleaner |
| Volumetric Efficiency | % | Up to 98% |
| Hysteresis / Response | - | Immediate flow output with minimal lag under pressure buildup |
Applications
▔▔
- Plastics & Rubber Injection Molding Machines: Provides precise pressure and flow regulation during clamping, injection, and holding phases, significantly lowering system power usage in servo-driven machines.
- Metal Stamping & Forging Presses: Delivers high continuous operating pressure and rapid pressure buildup for exact tonnage control during metal shearing, bending, and deep drawing processes.
- Hydraulic Power Units (HPUs) & Test Benches: Serves as the primary power source where ripple-free pressure delivery and silent operation are vital for precise calibration and continuous operation.
- Die Casting Machines: Controls high-speed cylinder movements and high-pressure intensification phases with minimal flow turbulence and low pressure drop.
Related Models
▔▔
| Model Code | Displacement (cm3/rev) | Max Continuous Pressure (bar) | Max Speed (rpm) | Port Type |
| PGH5-2X/063RE11VU2 | 63 | 350 | 3000 | SAE Flange |
| PGH5-2X/080RE11VU2 | 80 | 350 | 2800 | SAE Flange |
| PGH5-2X/100RE11VU2 | 100 | 350 | 2500 | SAE Flange |
| PGH5-2X/125RE11VU2 | 125 | 350 | 2200 | SAE Flange |
| PGH5-2X/160RE11VU2 | 160 | 350 | 2000 | SAE Flange |
FAQ
▔▔
Q: How do I verify the correct full model code for my Rexroth PGH5 pump replacement?
A: You can check the nameplate on your existing pump body for the full designation code, which indicates series, component series, frame size, displacement, direction of rotation, shaft end, and seal type. Alternatively, contact our engineering team with photos of your pump plate for direct identification.
Q: What level of oil filtration is required for the PGH5 gear pump?
A: To maintain optimal volumetric efficiency and prevent wear on precision dynamic clearance seals, the hydraulic fluid must maintain an ISO 4406 cleanliness level of at least 19/17/14. We recommend using suction/return line filters with a minimum rating of 10 to 25 microns.
Q: What hydraulic fluid type is recommended for optimal performance?
A: Standard mineral oil-based hydraulic fluids (HLP or HVLP according to DIN 51524) are recommended. If your application requires fire-resistant fluids (such as HFC or HFD), specialized seal configurations must be selected prior to ordering.
Contact Us
▔▔
Request a Quote Today to ensure your hydraulic system performs at its best with genuine Nachi components from Yanhui Hydraulic.
Hot Tags: Rexroth PGH5, China Rexroth PGH5 suppliers, Rexroth Axial Piston A4VG Pump, Rexroth A10vso71, Rexroth Hyd Pump, hydraulic pump installer, high pressure rexroth gear pump, Hydraulic Internal Gear Pump PGH4
