Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of rexroth pgh4-30 series internal gear pump in China. We warmly welcome you to wholesale bulk rexroth pgh4-30 series internal gear pump for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Why Choose Yanhui Hydraulic?
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- Professional consultation on valve selection and installation
- Assistance with technical specifications and system integration
- Access to genuine Nachi valves and other top hydraulic brands
- Quick and safe shipping worldwide
- Reliable after-sales service and troubleshooting guidance
Product Overview
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The Rexroth PGH4-30 belongs to Bosch Rexroth's PGH internal gear pump family. It uses an internal gear design with crescent-shaped sealing, ensuring extremely smooth flow with minimal pulsation. Compared to external gear pumps, the PGH series offers lower noise levels, higher volumetric efficiency, and excellent reliability under continuous operation.
Key Advantages
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- Compact housing design for easy integration
- Optimized gear geometry for high efficiency
- Low flow pulsation for stable system performance
- High resistance to contamination when proper filtration is used
- Excellent cold-start characteristics
Technical Specifications
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| Parameter | Value |
|---|---|
| Pump Type | Internal Gear Pump |
| Series | PGH4-30 |
| Displacement | 30 cm³/rev (nominal) |
| Maximum Operating Pressure | Up to 300 bar |
| Peak Pressure | Up to 350 bar |
| Speed Range | 500 – 3000 rpm |
| Direction of Rotation | Clockwise or Counterclockwise |
| Mounting Type | Flange mounting |
| Shaft Type | Keyed shaft / Splined shaft (depending on model) |
| Hydraulic Fluid | Mineral oil (HLP) according to DIN 51524 |
| Operating Temperature | -20°C to +80°C (depending on fluid) |
| Noise Level | Very low, suitable for noise-sensitive environments |
Applications
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- Machine tools (CNC, milling, grinding machines)
- Hydraulic power units
- Plastic and rubber machinery
- Automation and robotic systems
- Press machines
- Packaging and printing equipment
Related Models
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- PGH4-3X/030RE07VU2
- PGH4-3X/030RR07VU2
- PGH4-3X/030RE11VU2
- PGH4-3X/030RR11VU2
FAQ
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How do I choose the correct PGH4-30 model?
Check required displacement, system pressure, mounting interface, shaft type, and rotation direction. Matching these parameters to your existing system is essential for performance and longevity.
What makes internal gear pumps quieter?
The internal gear design produces smoother meshing and less flow pulsation, which significantly reduces noise compared to external gear pumps.
What fluid is recommended?
High-quality mineral hydraulic oil (HLP) with proper viscosity and filtration. Clean oil greatly extends pump life.
Can this pump run continuously?
Yes. The PGH series is designed for continuous industrial operation under rated conditions.
How to prevent premature wear?
Use correct filtration (recommended ≤10 μm), maintain proper oil temperature, and avoid dry running.
Contact Us
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Request a Quote Today to ensure your hydraulic system performs at its best with genuine Nachi components from Yanhui Hydraulic.
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