Deck Hydraulic Systems Hydraulic Motor
2 month ago
Product details
Deck Hydraulic Systems – Hydraulic Motor RMM350/105A-L-22PD
Basic Information
Product Name: Deck Hydraulic System Hydraulic Motor
Model: RMM350/105A-L-22PD
Application: Specially designed for ship deck machinery hydraulic systems, including deck cranes, hatch cover driving units, marine winches and windlass equipment.
Model Code Definition
1. RMM：Marine two‑speed variable radial piston hydraulic motor series
2. 350/105：Dual theoretical displacement
- Low‑speed displacement: 3507 cm³/rev
- High‑speed displacement: 1052 cm³/rev
3. A：Standard internal structural configuration
4. L：Counter‑clockwise rotation from the output shaft end
5. 22：22# standard marine tapered output shaft
6. PD：Built‑in automatic two‑speed switching valve with salt‑resistant marine special seals
Main Technical Parameters
Item Low‑speed Heavy Load Mode High‑speed Light Load Mode
Theoretical Displacement 3507 cm³/r 1052 cm³/r
Rated Working Pressure 20.6 MPa 20.6 MPa
Max Instantaneous Pressure 24.5 MPa 24.5 MPa
Rated Rotational Speed 135 r/min 280 r/min
Rated Output Torque 475 kN·m 150 kN·m
Maximum Inlet Flow 475 L/min 475 L/min
Key Characteristics
1. Automatic two‑speed shifting: high torque for heavy lifting, high speed for no‑load retraction.
2. Robust radial piston structure, stable performance under frequent startup and impact load.
3. Corrosion‑resistant sealing system, adapted to marine salt fog and humid environment.
4. Standard tapered shaft for direct connection with deck machinery gearboxes and reels.
Typical Usage
Ship deck crane hoisting system, hatch cover opening/closing hydraulic drive, marine winch and anchor machine hydraulic power unit.
I. Product Features
1. Low-Speed, High-Torque Performance:
The RMM350/105A-L-22PD hydraulic motor is specifically designed for marine deck machinery, offering high torque output at low rotational speeds. This makes it ideal for heavy-duty starting and stable operation of equipment such as anchor windlasses and mooring winches on ships.
2. Bidirectional Rotation:
Supports both forward and reverse rotation, accommodating the diverse operational requirements of marine machinery, such as the deployment and retrieval of anchor chains or the winding of mooring ropes.
3. Reliable Structure:
Utilizes a piston-type design for high mechanical and volumetric efficiency, ensuring stable performance in harsh marine environments.
4. High Protection Rating:
Built to withstand marine conditions like humidity and salt spray, ensuring a long service life.
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II. Applications
1. Marine Deck Machinery:
Primarily used in anchor windlasses, mooring winches, hatch cover hydraulic systems, and other deck machinery on ships, providing stable and reliable power support.
2. Other Industries:
Also suitable for engineering machinery, mining equipment, and other applications requiring low-speed, high-torque hydraulic motors (specific models may vary).
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III. Technical Specifications (Estimated Based on Industry Standards and Similar Models)
【表格】
Parameter Description
Displacement Likely large to support low-speed, high-torque characteristics (exact value: refer to product manual).
Rated Pressure Typically 20–25 MPa, depending on motor design and load requirements.
Speed Range Low-speed design, likely 0–200 rpm, depending on load and hydraulic system configuration.
Torque Output Calculated based on displacement and pressure; may reach several thousand Nm (Nm) to meet heavy-duty starting and stable operation needs.
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IV. Selection and Customization Recommendations
1. Parameter Matching:
Choose the appropriate displacement, pressure, and speed ratings based on the specific load requirements of marine machinery (e.g., anchor weight, winch speed).
2. Environmental Adaptability:
Verify the motor’s protection rating and material suitability for marine environments (e.g., corrosion resistance, moisture resistance).
3. Supplier Credentials:
Select a reputable supplier with reliable after-sales service to ensure product quality and consistent supply.
4. Customization Services:
Some suppliers may offer customization options, such as modifying port orientation or shaft dimensions, to meet specific installation needs.
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Suppliers
Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
4 year
Main Product:
hydraulic motor,
gear box,
hydraulic pump ,
hydraulic valve ,
hydraulic winch,
hydraulic system