EG-PBD Series Gear Charge Pump | EG-PBD-26-20, EG-PBD-22-20, EG-PBD-30-R

EG-PBD Series High-Performance Hydraulic Gear Charge Pumps

Product Overview: The EG-PBD Series is a heavy-duty gear charge pump specifically engineered for closed-circuit hydrostatic drive systems. As a critical component for system pressure compensation, this series provides the necessary oil flow for cooling, lubrication, and maintaining backpressure within closed loops. This featured range includes core models: EG-PBD-26-20, EG-PBD-22-20, and single units EG-PBD-26-R and EG-PBD-30-R. Its compact design and superior self-priming capability ensure the safety and stability of main pumps (such as piston pumps) during high-speed operation.

Key Technical Advantages:

• 100% Plug-and-Play Replacement: Manufactured strictly to international OEM standards. Suffixes like 26-20 or 30-R guarantee that mounting flanges, drive shafts (Splined/Keyed), and port configurations are fully compatible with mainstream closed-circuit pumps (e.g., Sauer-Danfoss or Rexroth series).

• High-Pressure Resilience: Featuring reinforced aluminum alloy bodies and axial pressure-compensated floating side plates, these pumps maintain high volumetric efficiency even under system charge pressures and auxiliary circuit demands.

• Excellent Speed Adaptability: Designed for synchronous operation with main pumps, supporting continuous speeds up to 3500 RPM, with outstanding self-priming performance during cold starts.

• Flexible Rotation Options: Available in R (Right/Clockwise) and L (Left/Counter-Clockwise) configurations to suit various power input requirements.

• Target Applications: Charge pumps for asphalt pavers, rollers, concrete mixers, harvesters, and various hydrostatic transmission (HST) closed-circuit systems.

Detailed Models & Parameters:

• Core Series: EG-PBD Charge Pump Series.

• Model Keywords: EG-PBD-26-20, EG-PBD-22-20, EG-PBD-26-R, EG-PBD-30-R.

• Displacements: Covering precise specs of 22cc, 26cc, and 30cc/rev.

• Pressure Ratings: Rated up to 20 MPa (200 Bar); Peak pressure up to 25 MPa (3625 PSI).

• Maximum Speed: 500 – 3500 RPM.