OMFB HDS-ISO 64 Series Axial Piston Pump | HDS 64 S/D Bent Axis Motor | 601-001-10649 601-001-10643

Chengyuan Hydraulic presents the HDS-ISO 64 Series bent axis axial piston pumps, precision-engineered as premium replacements for OMFB mobile hydraulic standards. This high-performance series includes core models 601-001-10649 (Left Hand S/L) and 601-001-10643 (Right Hand D/R). Featuring a classic 40° bent axis design, these units function exceptionally well as both high-pressure pumps and high-speed hydraulic motors.

As a pivotal component for truck-mounted hydraulic systems, Chengyuan ensures 100% Drop-in Interchangeability regarding the ISO 4-bolt mounting flange and the 8x32x36 spline shaft specifications. Supported by our 100% Simulation Load Testing, each HDS 64 unit is verified for volumetric efficiency at 350 bar before shipment. This ensures a superior power-to-weight ratio and an extended service life for tippers, cranes, and sanitation machinery.

Technical Specifications 

• Model Code: HDS-ISO 64 (LH: 601-001-10649 / RH: 601-001-10643)

• Displacement: 63.7 $cm^3$/rev

• Rated Pressure: 350 bar (35 MPa)

• Peak Pressure: 400 bar (40 MPa)

• Max Speed (Continuous): 1900 rpm

• Max Speed (Intermittent): 2700 rpm

• Mounting Flange: ISO 7653 (4-bolt standard)

• Drive Shaft: DIN 5462 (Spline 8x32x36)

• Inlet/Outlet Ports: G 1″ (Configurable per application)

• Housing Material: High-strength Ductile Iron

• Weight: Approx. 13.5 kg

Key Technical Advantages:

• 40° Bent Axis Geometry: The optimized bent axis technology provides longer piston strokes and balanced force distribution. Compared to swashplate pumps of similar size, the HDS 64 offers superior self-priming and lower starting friction, significantly boosting overall system efficiency.

• Integrated Piston-Rod Technology: Pistons and connecting rods are joined via a specialized friction welding process and high-frequency quenching. This high-strength assembly ensures structural stability and fatigue resistance even at 400 bar peak pressures.

• Reinforced Dual Tapered Bearings: Equipped with heavy-duty tapered roller bearings designed to absorb significant radial and axial loads. This reduces operational noise and dramatically extends bearing life under high-speed conditions.

• Double Low-Loss Seal Design: Utilizing customized high-pressure lip seals and precision-ground shaft seats, the pump maintains reliable sealing performance in temperatures ranging from -25°C to +110°C, eliminating external leakage.

Application Areas:

• Commercial Vehicles: Lifting systems for tippers, truck-mounted cranes, and multifunctional road sweepers.

• Forestry Equipment: Hydraulic circuits for harvesters, wood chippers, and large log loaders.

• Construction Platforms: Auxiliary motors for cement mixers, mini-rollers, and attachment controls for excavators.

Expert Maintenance Tips:

• Rotation Direction Alignment: Crucially verify the PTO rotation before installation. 601-001-10643 is Clockwise (RH), while 601-001-10649 is Counter-clockwise (LH). Incorrect rotation will starve the pump and lead to internal failure.

• Pre-start Lubrication: Before initial startup or after long-term storage, inject hydraulic oil into the inlet port to submerge the internal rotating group, preventing dry friction damage to the valve plate and pistons.

• Suction Filtration Management: It is recommended to install a filter with at least 125μm accuracy on the suction side. Ensure the suction line diameter is sufficient to prevent cavitation and noise.