OMFB HDS 64 D ISO Bent Axis Hydraulic Piston Pump | 64cc High Speed Motor | 350-400 Bar

The HDS 64 D Series by Chengyuan Hydraulic is a high-performance bent-axis axial piston pump engineered to be 100% interchangeable with OMFB technical standards. Specifically designed for European truck hydraulics and heavy-duty PTO applications, this pump features a robust 40° bent axis geometry for maximum power density. At Chengyuan, every unit undergoes 100% simulated condition testing, ensuring that our replacements for OMFB 108-015-06035 deliver the same reliability and performance as the original, but with a more competitive TCO (Total Cost of Ownership).

Technical Specifications 

• Product Series: HDS 64 D (Clockwise) / HDS 64 S (Counter-clockwise)

• OEM Reference Code: 108-015-06035 (D) / 108-015-06044 (S)

• Displacement: $63.7\text{ cm}^3\text{/rev}$

• Rated Pressure: $350\text{ bar (35 MPa)}$

• Peak Pressure: $400\text{ bar (40 MPa)}$

• Max Continuous Speed: $2300\text{ rpm}$

• Intermittent Speed: $2700\text{ rpm}$

• Mounting Standard: ISO 7653 (4-bolt flange, 80mm pilot)

• Shaft Specification: 8x32x36 DIN 5462 (Splined)

• Weight: Approx. $12.5\text{ kg}$

Key Technical Advantages

• High-Efficiency 40° Bent Axis Geometry: Utilizing a high-angle bent axis design, the HDS 64 minimizes piston side-loading and mechanical stress. This results in superior volumetric efficiency and excellent self-priming capabilities during high-speed operations.

• Ductile Iron Housing Construction: The housing is cast from high-tensile ductile iron, providing exceptional fatigue resistance. Precision CNC machining ensures minimal deformation under $400\text{ bar}$ peak loads, effectively preventing internal leakage and overheating.

• Heavy-Duty Tapered Roller Bearings: Equipped with oversized bearings optimized for both axial and radial loads. This configuration allows the pump to withstand extreme shock loads common in truck-mounted crane operations, significantly extending service life.

• Precision-Ground Valve Plates: The critical interface between the valve plate and the cylinder block is ultra-fine ground. This facilitates a stable dynamic oil film at the micron level, achieving high volumetric efficiency (typically $\ge 97\%$).

Application Areas

• Lifting Machinery: Truck-mounted cranes and telescopic loaders.

• Municipal Vehicles: Compactor trucks and recovery vehicles.

• Power Take-Off (PTO): Direct drive for commercial vehicle hydraulic systems.

Expert Maintenance Tips

• Priming & Bleeding: Always fill the pump casing with clean hydraulic oil through the drain port before initial startup or after long downtime to prevent dry-run damage.

• Filtration Standard: Maintain system oil cleanliness at ISO 4406 18/16/13 or better using high-efficiency filters ($10\text{–}25\mu\text{m}$).

• Rotation Check: Verify the rotation of your Power Take-Off (PTO) before installation to ensure the pump rotation (D for Clockwise, S for Counter-clockwise) matches the drive source.