F11-006-MB-CV-K-000-0000-PT F11 F11-005 F11-019 F11-010 F11-006 Fixed Displacement Hydraulic Piston Motor

Genlu Hydraulic proudly introduces our F11 Series high-performance industrial and mobile-grade fixed displacement bent-axis axial piston hydraulic motors. Engineered to endure extreme mechanical stress, ultra-high rotational velocities, and violent fluid pressure spikes within both open and closed hydraulic loops, this line serves as a precision-manufactured, drop-in replacement for the classic Parker (VOAC) F11 drivetrain architecture. We specialize in cross-referencing and supplying the industry-standard small-displacement gold configuration: F11-006-MB-CV-K-000-0000-PT, while offering comprehensive model matching for F11-005, F11-010, and F11-019 frames.

Acting as the high-output motive core for uncompromising rotary drives, Genlu’s F11 series conforms strictly to CETOP, ISO, and SAE dimensional and kinematic metrics. The advanced 40° bent-axis design layout yields exceptional power-to-weight ratios. We guarantee 100% Drop-in Interchangeability across standard mounting geometries (MB: CETOP standard 2-bolt flange), output shaft configurations (K: metric parallel keyed shaft), valve end-cap port orientations (CV: rear cap top-facing vertical ports), and overall fluid-dynamic efficiency parameters. Every single production unit undergoes 100% full-load high-temperature bedding-in, low-pressure casing leakage validation, and maximum-RPM overspeed dynamic simulations, ensuring synchronous output and structural reliability under thermal shocks and systemic pulsations.

Technical Specifications 

• Product Line: F11 Series Fixed Displacement Bent-Axis Axial Piston Hydraulic Motor

• Exact Model Designation: F11-006-MB-CV-K-000-0000-PT

• Nominal Displacement: 6.0 $cc/rev$

• Maximum Continuous Working Pressure: 35.0 MPa (350 bar)

• Maximum Intermittent Peak Pressure: 42.0 MPa (420 bar)

• Maximum Continuous Rated Speed: 10200 rpm

• Maximum Intermittent Allowable Speed: 11200 rpm

• Control Mechanism: Fixed Displacement (Output shaft speed is strictly proportional to the input volume stream)

• Maximum Theoretical Torque (@ 35 MPa Continuous): 33.3 Nm

• Maximum Theoretical Mechanical Power Output: 36 kW

• Mounting Interface & Shaft Characteristics: CETOP standard 2-hole mounting pattern with a metric parallel cylindrical keyed shaft extension

• Port Connection Orientation: CV type end-cap, standard metric internal threaded ports (PT suffix: original-spec gauge testing port allocation)

• Dry Net Machine Weight: Approx. 5.0 kg

Key Technical Advantages:

• Optimized 40° Bent-Axis Matrix for Maximum Power Density: The F11-006 features an aggressive 40° cylinder barrel inclination angle relative to the drive shaft. Compared to traditional swashplate piston designs, this configuration reduces axial internal package constraints. Weighing a mere 5.0 kg, it outputs up to 36 kW of mechanical power, offering a high power-to-weight ratio for confined structural envelopes.

• Monoblock Spherical Pistons with High-Speed Stability: The inner assembly integrates single-piece heavy-forged spherical piston heads retained by a high-tensile locking ring. The synchronous mechanical link between the barrel and drive shaft prevents piston shoe lift or lifter failure at speeds exceeding 10000 rpm, providing resistance to overspeed bursting.

• Laminated Metallic Piston Rings for High Volumetric Retention: Each piston is fitted with resilient laminated metallic piston rings. This setup upgrades the cylinder-bore fluid seal from standard clearance throttling to a positive mechanical seal. As a result, global volumetric efficiency remains above 95% at 35 MPa, while protecting internal tolerances against radical fluid-temperature changes.

• Heavy-Duty Tapered Roller Bearings for Direct Loading: The input shaft is housed in matched pairs of heavy-capacity tapered roller bearings. This design directly absorbs substantial external radial loads and bi-directional axial thrust. It allows the motor to drive external pulleys, sprockets, or gears directly without requiring expensive outboard bearing support blocks.

Application Areas:

• Specialty Vehicles & Mobile Attachments: High-speed cutter head circuits for industrial mowers, rotary brush drives for municipal road sweepers, and snowblower auger propulsion systems.

• Heavy Forestry & Agricultural Attachments: High-velocity hydraulic chain-saw bar actuators for forestry harvesters, feller bunchers, and sugar cane harvesting shredder drums.

• Industrial Flywheels & Centrifugal Machinery: Pre-stage high-RPM prime movers for industrial centrifuges, waste shredders, and vehicle-mounted hydraulic generator systems.

Expert Maintenance Tips:

• Enforce Independent and Top-Facing Case Drain Plumbing: During high-velocity execution, considerable fluid-friction heat and bypass oil accumulate within the casing. YOU MUST plumb a dedicated case drain line routed directly back to the reservoir (never join this line to the system’s main high-pressure return headers). Ensure the line runs out of the highest available drain port on the housing so the casing stays completely filled with oil to lubricate and cool the bearings and pistons.

• Mandatory Pre-Start Casing Fluid Priming Procedure: Prior to initial commissioning or after prolonged periods of machine storage, pre-fill the motor casing with highly filtered, clean hydraulic fluid via the drain port. Starting the motor dry will cause immediate metal-to-metal friction scoring on the spherical piston heads and valve plate face, destroying the rotating group within seconds.

• Regulate Cold-Start Viscosity to Prevent Cavitation: Because this motor operates at high rotational boundaries (frequently above 8000 rpm), it is highly sensitive to fluid aeration and cavitation. In cold environments below 15°C, do not run the motor at full speed under load right away. Run a low-idle, zero-load warm-up sequence first to bring fluid viscosity within safe limits before engaging high speeds.