Rexroth PGZ4 Series High-Pressure Gear Pump ISO9001 Certified with 350MPA Maximum Load and 250L/min Speed Regulation

PGZ4-1X/020RA07VE4 R901230020 PGZ4-1X/032RA07VE4 R901230024 PGZ4-1X/040RA07VE4 R901230028
PGZ4-1X/050RA07VE4 R901230032 PGZ4-1X/063RA07VE4 R901230036 German Rexroth high-pressure gear pump PGZ4 series

FAQ;

1. Key Features & Design Advantages

The PGZ series pumps are engineered with several notable features:

• High Working Pressure: Capable of operating at continuous pressures up to 350 bar, making them suitable for high-pressure systems.

• Low Noise and Low Pulsation: Advanced design and manufacturing techniques result in exceptionally quiet operation and minimal flow pulsation, contributing to smoother system performance.

• High Efficiency with Gap Compensation: The pumps feature sealing gap compensation. This design ensures high volumetric efficiency, even at low speeds or when handling low-viscosity fluids.

• Broad Operating Range: They are suitable for a wide range of fluid viscosities and operational speeds, providing flexibility across various applications.

• Modularity and Combination Capability: Different sizes and displacements within the series can be combined flexibly. Furthermore, PGZ pumps can be configured in multi-pump arrangements (e.g., double pumps) not only with other PGZ units but also with other pump types like internal gear (PGH series), vane, and axial piston pumps, creating compact and powerful hydraulic power units.

• Durability and Contamination Tolerance: The robust design offers high resistance to oil contamination, which contributes to a long operational service life.

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2. Technical Specifications (Summary)

A general overview of key technical data for the PGZ series is provided below. Always consult the official technical data sheet for the specific model.

Parameter/Feature Detail / Typical Value
Maximum Working Pressure 350 bar
Displacement Range 020 — 250 cm³/rev (across different frame sizes)
Rotation Direction Typically clockwise or counterclockwise (model dependent)
Combination Capability Yes, with other PGZ pumps, internal gear (PGH), vane, and axial piston pumps
Key Features Low noise, low pulsation, sealing gap compensation for high efficiency

Note: Specifications like speed range, viscosity range, and minimum inlet pressure are critical for selection but are not explicitly detailed in the provided search results for the PGZ series. Refer to official Rexroth documentation for comprehensive data.

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3. Typical Applications

Due to their high-pressure capability and robust design, PGZ series gear pumps are employed in a wide array of industrial machinery, including:

• Plastic Injection Molding Machines

• Machine Tools

• Presses and Stamping Machinery

• Mobile Hydraulics (e.g., in construction, agricultural machinery)

• Various industrial hydraulic systems requiring reliable and efficient fixed-displacement pumping units.

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4. Installation and Maintenance Considerations

Proper installation and maintenance are crucial for optimal performance and longevity:

• Fluid Cleanliness: Ensure the hydraulic oil is clean. Use filters when refilling and clean the tank when changing oil to prevent contamination that could cause internal damage.

• Suction Line: The suction line and pump inlet must be tightly sealed to prevent air ingress. The suction pipe should be below the fluid level in the tank, and the pipe end should be cut at a slant.

• Operating Temperature: Monitor the system's operating temperature. The tank temperature generally should not exceed 65°C (55°C for machine tool applications is often recommended) to maintain oil integrity and prevent damage.

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5. Why Choose Rexroth PGZ Series Pumps?

The Rexroth PGZ series stands out due to its blend of high pressure capability, operational efficiency, and exceptional durability. Their ability to operate effectively across a wide range of conditions, combined with low noise and pulsation, makes them a preferred choice for engineers designing reliable hydraulic systems. The extensive flexibility for combination with other pumps further adds to their versatility, allowing for customized solutions in a compact footprint.

For precise technical specifications, performance curves, and detailed installation guidelines for a specific model (e.g., PGZ4-10/063RA07VE4), it is essential to consult the official product documentation from Rexroth.

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