German Rexroth Hydraulic Gear Pump with 280 L/min Flow Rate Flange Mounting and

Product Specification

PGZ4-1X/050RT07VB2 R901230034 
PGZ4-1X/063RT07VB2 R901230038 
PGZ4-1X/080RT07VB2 R901230042 
PGZ5-1X/063RT07VB2 R901230046
PGZ5-1X/080RT07VB2 R901230050 German Rexroth quantitative gear pump

FAQ:

 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.