PGF-2X, PGF-3X Rexroth internal meshing gear pump

Rexroth’s PGF-2X and PGF-3X series internal meshing gear pumps are both high-precision hydraulic components. The core difference lies in the displacement specifications and applicable scenarios. The specific analysis is as follows：
1. Comparison of displacement and performance parameters
PGF-2X series
Displacement range: 6.5cm3/rev (such as PGF2-2X/006RE01VE4) to 22cm3/rev (such as PGF2-2X/022RE20VE4).
Pressure level：
Continuous working pressure: 210bar
Peak pressure: 250bar (some models can reach 280bar, such as PGF2-2X/006RJ20VU2K).
Speed range: 600-3600rpm, high efficiency can still be maintained in low viscosity media.
Applicable scenarios：
Medium and small flow, medium pressure hydraulic systems (such as machine tools, lifting devices).
Noise-sensitive industrial equipment (such as fans, spreaders).
PGF-3X series
Displacement range: 20cm3/rev (such as PGF3-3X/020RE07VE4) to 40cm3/rev (such as PGF3-3X/040RE07VE4).
Pressure level：
Continuous working pressure: 210bar
Peak pressure: 250bar (some models are designed with higher pressure).
Speed range: 500-3000rpm, optimize the performance of low-speed working conditions.
Applicable scenarios：
Large-flow, high-pressure hydraulic systems (such as construction machinery and injection molding machines).
Heavy-duty industrial environments (such as metallurgy, ship hydraulic systems).

2. Technical characteristics and advantages
Common advantage
Low-noise design: optimize the gear meshing and floating ring compensation structure, and reduce vibration by more than 30%.
High efficiency: The gap compensation technology enables the volumetric efficiency to reach more than 95%, reducing energy loss.
Long life: Plain bearings and FKM seals (fluorine rubber) adapt to a wide temperature range (-20℃ to +100℃), and have a life span of more than 2 million load cycles.
Modular installation: support ISO 4-hole flange, multiple shaft configurations (such as parallel key shaft, cylindrical belt drive), easy system integration.
PGF-3X series enhanced features
Enhanced bearing design: to withstand higher radial forces and adapt to heavy-duty working conditions.
Optimized displacement gradient: provide 20/25/32/ 40cm3/rev multi-specification, reducing system redundancy design.
Optional high-voltage version: Some models (such as PGF3-3X/032RE07VE4) support customized high-voltage parameters to meet special needs.

3. Typical application cases
PGF2-2X/016RE20VE4
Application: Hydraulic clamping system of CNC machine tools.
Advantages: low noise (≤72dB), high response speed, to meet the needs of precision machining.
PGF3-3X/032RE07VE4
Application: Hydraulic drive unit of injection molding machine.
Advantage: Large flow (44.8L/min@1400rpm ), High pressure (250bar) to ensure stable mold opening and closing action.