IAM1500H45 / IAM1800H45 / radial piston motor
4 week ago
Product details
1. Product Definition and Core Functions
TheIAM1500H45 / IAM1800H45are high-performanceradial piston hydraulic motors, classified as Low-Speed High-Torque (LSHT) hydraulic drive components. Their primary function is to convert hydraulic energy into mechanical energy by driving radially arranged piston-cylinder assemblies through hydraulic oil pressure. These motors are ideal for applications requiring high torque output and stable rotational speeds.
• Radial Piston Structure: Pistons are distributed radially around the motor, enabling continuous rotation via cylinder block rotation.
• Low-Speed High-Torque: Directly drives loads without reduction gears, simplifying transmission systems.
• High-Pressure Adaptability: Capable of withstanding system pressures up to 300–450 bar, suitable for heavy-duty applications.
2. Technical Parameter Comparison
【表格】
Parameter IAM1500H45 IAM1800H45
Displacement 1500 cm³/rev 1800 cm³/rev
Rated Pressure 350 bar (5,075 psi) 350 bar (5,075 psi)
Peak Pressure 450 bar (6,525 psi) 450 bar (6,525 psi)
Rated Speed 0–150 rpm 0–120 rpm
Peak Torque ≈8,500 Nm (6,170 lb-ft) ≈10,200 Nm (7,400 lb-ft)
Continuous Torque ≈7,200 Nm (5,200 lb-ft) ≈8,700 Nm (6,370 lb-ft)
Weight ≈220 kg (485 lb) ≈250 kg (550 lb)
IP Rating IP65 (Dust/Waterproof) IP65 (Dust/Waterproof)
3. Structure and Working Principle
(1) Core Components
• Cylinder Block: Radially drilled with multiple piston bores, rotating coaxially with the output shaft.
• Pistons: Slide radially, converting linear motion into rotation via a swashplate or crank mechanism.
• Valve Plate: Controls hydraulic oil inlet/outlet timing to ensure continuous rotation.
• Bearing System: High-load roller bearings support the output shaft, handling radial and axial loads.
(2) Operating Principle
1. High-Pressure Oil Inlet: Hydraulic oil enters the piston chambers via the valve plate, pushing pistons outward.
2. Torque Generation: Pistons generate tangential force through the swashplate/crank mechanism, driving cylinder block rotation.
3. Oil Discharge Cycle: Piston chamber volume decreases, expelling oil through the valve plate to complete the cycle.
4. Performance Characteristics
(1) Advantages
• High Torque Density: Delivers significantly higher torque per unit volume than axial piston motors, ideal for heavy-duty startups.
• Stable Speed: Minimal torque fluctuation at low speeds, suitable for precision control (e.g., winches).
• Shock Resistance: Piston structure absorbs transient overloads, extending service life.
• Durability: Key components (bearings, valve plates) use wear-resistant materials, reducing maintenance frequency.
(2) Limitations
• Larger Size: Radial design results in a bulkier profile compared to axial piston motors of equivalent power.
• Speed Limitations: Less effective at high speeds (>200 rpm); axial motors are preferred for such applications.
• Initial Cost: Higher upfront cost than gear motors, though lower lifecycle costs.
5. Application Scenarios
(1) Construction Machinery
• Cranes: Drives slewing mechanisms or winches for stable low-speed torque.
• Excavators: Replaces traditional reduction gears for direct drive of travel/slewing systems.
• Concrete Pump Trucks: Controls boom rotation for precise positioning.
(2) Industrial Equipment
• Presses: Powers large hydraulic presses for high-pressure, low-speed compression.
• Injection Molding Machines: Operates clamping units for heavy mold handling.
• Mining Machinery: Drives scraper conveyors or crushers in harsh environments.
(3) Marine and Shipboard
• Deck Machinery: Powers anchors, winches, or steering gears with corrosion resistance.
• Drilling Platforms: Controls drill pipe rotation or hoisting systems for offshore operations.
(4) Agricultural Machinery
• Combine Harvesters: Drives threshing drums or header lifting for enhanced efficiency.
• Sugar Cane Harvesters: Controls cutting head rotation for high-load harvesting.
6. Selection and Matching Guidelines
(1) Displacement Selection
• Choose displacement based on load torque requirements:
• IAM1500H45: Suitable for medium loads (e.g., 5–8-ton cranes).
• IAM1800H45: Ideal for heavy-duty applications (e.g., >10-ton equipment).
(2) Pressure Matching
• Ensure system pressure ≤ rated pressure (350 bar) to avoid prolonged overpressure operation.
(3) Speed Requirements
• For speeds >150 rpm, prioritize axial piston motors; for <50 rpm, radial motors excel.
(4) Environmental Adaptability
• Marine/corrosive environments: Select stainless steel or specialized coating models.
• Extreme cold: Use low-temperature hydraulic oil and heating systems.
(5) Installation and Maintenance
• Prefer flange or spline output shafts for easy load connection.
• Regularly inspect oil cleanliness (NAS 6 or lower) to prevent valve plate wear.
7. Common Faults and Troubleshooting
【表格】
Fault Symptom Possible Causes Solutions
Insufficient Torque Low system pressure, oil contamination, valve plate wear Adjust pressure valves, replace filters, repair valve plates
Unstable Speed Air ingress, piston seizure, bearing damage Vent air, clean pistons, replace bearings
Abnormal Noise Excessive cylinder-valve plate clearance, loose components Adjust clearance, tighten bolts
Leakage Aged seals, housing cracks Replace seals, weld repair
8. Summary
TheIAM1500H45 / IAM1800H45 Radial Piston Motorsare engineered for heavy-duty, low-speed, high-torque applications, offering simplified transmission systems, enhanced energy efficiency, and reduced maintenance costs. Selection should consider load torque, speed range, environmental conditions, and lifecycle costs. Prioritize models matching system pressure/flow requirements and conduct regular maintenance to extend service life.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
3 year
Main Product:
hydraulic motor ,
gear box,
hydraulic pump,
hydraulic valve ,
hydraulic winch,
hydraulic system
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