H1P Closed circuit Axial Piston Pump

The Danfoss H1P is part of Danfoss’ H1 family.  It has pioneered not only the closed circuit variable displacement axial piston pumps but also the whole mobile hydraulic industry.  Based on Danfoss decades of experience, the H1P will provide you with highest quality and standards.  As well as best-in-class, innovative, and efficient technology.

It can be used in the overall hydraulic system and is suitable for high-power equipment in all industries. Choosing Danfoss as your partner, you will profit from highest quality, standards and service - to support you taking your performance to the next level.

Perfect fit: The H1P can be used in overall hydraulic systems. Also, it fits hundreds of applications in an easily integrated package.

Efficiency: The integral electro-hydraulic servo system is controlling the rate and direction of the hydraulic flow.  This guarantees low servo-pressure and excellent high-power density. 

Optimized profile & design: The integrated Gerotor charge pump design including pressure balanced port plates reduces volumetric losses to a possible minimum.

Compact: A lower total number of parts such as one single swash plate, and no T-bar. These make operating your machine as simple as possible, still providing best quality at highest standards.

Clean side and flexibility: The lightweight, compact H1P is designed with one true clean side. In addition, no operating ports to connect resulting in a flexible placement of components.

Precise control & reliability: Lower total control losses and better resolution due to high current solenoid. These lead to an optimized, reliable, overall control performance, allowing for predictable and safe machine operation.

Variety of control options: Automotive Control (AC), Electrical Displacement Control (EDC), Fan Drive Control (FDC), Forward-Neutral-Reserve Control (FNR), Mechanical Displacement Control (MDC), Non-Feedback Proportional Electric Control (NFPE).

Wide range of displacements: Offering a range of pumps with 45-250 cm² per round. The H1P is a modular pump flexible enough to fit all kinds of applications.

High pressure capability: Working with 480 bar delta pressure, the H1P operates at highest pressure.

Supporting Information

H1P data sheet (387Kb) H1P overview (4.75Mb) Download the free Adobe Reader to view PDF documents