PGF3-3X/032RE07VE4K | Rexroth Gear Pump 32cc 250bar

Product Overview

The PGF Series Internal Gear Pumps are high-performance fixed-displacement internal gear pumps from Bosch Rexroth, a global leader in drive and control technologies. The PGF series is renowned for high efficiency, low noise, low pulsation, and long service life, widely used in machine tools, industrial hydraulic systems, and mobile equipment.

The PGF series features leakage gap-compensated internal gear pump design with fixed displacement. The PGF3-3X series is frame size 3 with component series 3X, covering displacements from 20 to 40.5 cm³/rev. The pump body is manufactured from high-strength aluminum alloy with standard FKM seals, compatible with HL, HLP, HEES, HEPR, and other hydraulic fluids. The series is suitable for variable-speed drives and can withstand two million load cycles at maximum pressure.

PGF3-3X/032RE07VE4K model code breakdown:

• PGF: Internal gear pump

• 3: Frame size 3

• -3X: Component series 3X

• 032: Nominal displacement – 32 cm³/rev

• RE: Shaft end – R = Clockwise rotation, E = Cylindrical with key (ISO 3019-2)

• 07: Mounting flange and port specification

• VE4K: Seal and additional configuration – V = FKM seals

• R900064431: Rexroth material number

PGF3-3X/040RJ07VU2K model code breakdown:

• PGF: Internal gear pump

• 3: Frame size 3

• -3X: Component series 3X

• 040: Nominal displacement – 40 cm³/rev

• R: Rotation direction – Clockwise

• J: Shaft end – Geared (ISO 3019-1)

• 07: Mounting flange and port specification

• VU2K: Seal and additional configuration – V = FKM seals

• R900932127: Rexroth material number

We specialize in the R&D and manufacturing of high-pressure pumps, motors, and valve groups. All PGF series models offer 100% direct interchangeability with original Bosch Rexroth PGF series pumps of the same model—no modification required. Every unit undergoes 100% simulated load testing before shipment, ensuring performance validation under real-world operating conditions.

Technical Specifications 

PGF Series General Specifications:

• Brand Series: Bosch Rexroth PGF Series

• Pump Type: Leakage gap-compensated internal gear pump (fixed displacement)

• Body Material: High-strength aluminum alloy

• Seal Material: FKM

• Fluid Media: HL, HLP, HEES, HEPR

• Mounting Flange: ISO 3019-1 / ISO 3019-2 standards

• Variable-Speed Drive Compatible: Yes

• Load Cycle Capability: Two million cycles at maximum pressure

PGF3-3X/032RE07VE4K Specifications:

• Model: PGF3-3X/032RE07VE4K

• Material Number: R900064431

• Nominal Displacement: 32 cm³/rev

• Maximum Operating Pressure: 250 bar

• Maximum Flow Rate: 97.5 L/min

• Maximum Speed: 3000 rpm

• Minimum Speed: 500 rpm

• Rotation Direction: Clockwise

• Shaft End: Cylindrical with key, ISO 3019-2

• Weight (Net): 5.32 kg

• Through-Drive: Supported

PGF3-3X/040RJ07VU2K Specifications:

• Model: PGF3-3X/040RJ07VU2K

• Material Number: R900932127

• Nominal Displacement: 40 cm³/rev

• Maximum Operating Pressure: 210 bar

• Maximum Operating Pressure (Peak): 250 bar

• Maximum Flow Rate: 101.25 L/min

• Maximum Speed: 2500 rpm

• Minimum Speed: 500 rpm

• Rotation Direction: Clockwise

• Shaft End: Geared 22-4, 13T 16/32 DP, ISO 3019-1

• Mounting Flange: 2-hole flange 101-2, ISO 3019-1

• Weight: 6.7 kg

• Through-Drive: Supported

Key Technical Advantages

1. Leakage Gap Compensation Technology – Maintains High Volumetric Efficiency Throughout Service Life

The PGF series features axial and radial leakage gap compensation design. Axial compensation uses pressure fields to balance axial washers for sealing, while radial compensation uses a segment filler element (consisting of segment, segment support, and seal rolls) to separate suction and pressure zones. The sealing gap compensation ensures high efficiency even at low viscosities and low speeds.

2. Involute Gear System – Low-Noise and Low-Pulsation Operation

The gear tooth system features involute tooth profiles that effectively reduce flow and pressure pulsation. This design guarantees low-noise and low-pulsation operation. Additionally, the helical gear design further reduces hydraulic pulsation and noise levels.

3. Hydrodynamic Plain Bearings with Two Million Load Cycle Capability

The pinion shaft is supported by hydrodynamically lubricated plain bearings, ensuring efficient fluid transfer with minimal pulsation. PGF series pumps can withstand two million load cycles at maximum pressure, demonstrating their long-term fatigue durability in industrial and mobile applications.

4. Aluminum Alloy Housing with FKM Seals – Lightweight with Broad Media Compatibility

The PGF series features high-strength aluminum alloy housing for lightweight construction. Standard FKM seals ensure compatibility with HL, HLP, HEES, HEPR, and other hydraulic fluids.

5. Excellent Variable-Speed Drive Compatibility with Wide Speed Range

The PGF series is optimized for variable-speed drive applications. The speed range covers 500 to 3000 rpm, allowing slow positioning or high-cycle duty. Excellent suction characteristics make it suitable for broad viscosity and speed ranges.

6. Flexible Modular Design – Supports Through-Drive and Multi-Pump Combinations

The PGF series supports through-drive capability and can be combined with other pumps from the same series or other series (PGH internal gear pumps, PV vane pumps, axial piston pumps) for multi-pump configurations. All frame sizes can be combined with each other. Integrated valve technology in the connection cover is available upon request.

Application Areas

PGF3-3X/032RE07VE4K (32cc, 250bar) :

• Machine Tools—hydraulic systems for machining centers, lathes

• Mobile Equipment—lifting equipment, fans, spreaders

• Industrial Hydraulic Systems—industrial applications in the minor and medium performance range

PGF3-3X/040RJ07VU2K (40cc, 210bar) :

• Industrial Hydraulic Systems—hydraulic transmission and control for various industrial equipment

• Mobile Equipment—lifting equipment, fans, spreaders

• Machine Tools—hydraulic systems for machining centers

• Fatigue-Resistant Drives—mobile applications requiring high operating pressure

Expert Maintenance Tips

Model Code Verification (verify each element) :

PGF series model codes contain critical information. Before selection and installation, confirm the following:

• PGF: Internal gear pump.

• 3: Frame size 3.

• -3X: Component series 3X.

• Displacement numbers (032/040) : Nominal displacement – 032 = 32 cm³/rev, 040 = 40 cm³/rev.

• First letter (R/L) : Rotation direction – R = Clockwise, L = Counter-clockwise.

• Second letter (E/J) : Shaft end – E = Cylindrical with key (ISO 3019-2), J = Geared (ISO 3019-1).

• 07: Mounting flange and port specification.

• V: FKM seals.

• Material Number: R900064431 (032RE07VE4K) or R900932127 (040RJ07VU2K).

Verify Rotation Direction:

Confirm that the drive shaft rotation matches the direction code in the model – “R” indicates clockwise. Incorrect rotation will prevent pressure build-up and may damage internal gears and bearings.

Mounting Flange and Drive Shaft Matching:

PGF series offers two shaft end types:

• E-type: Cylindrical with key, ISO 3019-2

• J-type: Geared 22-4, 13T 16/32 DP, ISO 3019-1

Verify that the equipment-side shaft type matches the pump configuration before installation. Mounting flanges conform to ISO 3019-1 (2-hole) standards.

Suction Line and Fluid Requirements:

PGF series recommends HL, HLP, HEES, HEPR hydraulic fluids. Ensure the suction line is properly sealed with no air leaks and the suction filter is not clogged. Viscosity should be maintained within the recommended range. Fluid temperature should be maintained within -20°C to +80°C.

First-Start Priming Procedure:

After new pump installation or system overhaul, ensure the pump cavity is filled with oil before first start. Jog the pump at low speed and low pressure until the pump body is fully filled with oil and air is purged, then gradually increase to rated speed and working pressure. The PGF series uses plain bearings—running the pump dry will cause irreversible damage to bearings and gears.

Oil Cleanliness and Regular Maintenance:

Replace hydraulic oil and return filters every 1,000 operating hours or per equipment manufacturer recommendations. Regularly monitor pump body temperature—if it consistently exceeds +80°C, inspect the system cooling. Listen for abnormal noise or vibration during operation; if detected, shut down and troubleshoot immediately.