OMH Series hydraulic oribit motor
2 month ago
Product details
OMH Series Hydraulic Orbit Motor: Technical Analysis & Application Guide
(Based on Industry Standards and Customized User Requirements)
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I. Core Design Principles & Advantages of the OMH Series
1. Gerotor Transmission Mechanism
• Working Principle:
• Eccentric Engagement of Rotor and Stator: Hydraulic fluid drives the inner rotor (rotating element) in a planetary motion along the inner wall of the outer stator (stationary element), forming 3–5 sealed chambers. Volume changes in these chambers generate rotational output.
• Simultaneous Multi-Tooth Engagement: A single-stage gerotor set creates 3–5 sealed chambers simultaneously, ensuring smooth torque output with pulsation noise reduced by over 40% compared to traditional gear motors.
• Technical Parameter Comparison:【表格】
Parameter OMH Series Typical Values Traditional Gear Motors Piston Motors
Torque Density 45–600 Nm/cm³ 25–400 Nm/cm³ 60–800 Nm/cm³
Minimum Stable Speed 8 RPM (0.13 Hz) 50 RPM (0.83 Hz) 20 RPM (0.33 Hz)
Mechanical Efficiency 78%–88% 70%–80% 85%–95%
Weight-to-Torque Ratio 0.12 kg/Nm (Lightweight Design) 0.18 kg/Nm 0.15 kg/Nm
2. Key Technological Breakthroughs
• High-Pressure Adaptive Sealing System:
• Features double-lip fluorocarbon rubber (FKM) seals and floating bearing design, capable of withstanding350 bar (5,075 psi) peak pressurewith leakage reduced to ≤3 mL/min (at 210 bar).
• Intelligent Heat Dissipation Structure:
• Integrates spiral cooling channels in the housing with aluminum alloy heat-conductive material, keeping oil temperature ≤85°C undercontinuous full-load operation(15°C lower than traditional designs).
• Modular Mounting Interfaces:
• Supports 6 mounting methods including SAE flange, ISO flange, and axial through-hole, improving compatibility by 60% and适配 (adapting to) over 90% of global construction machinery brands.
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II. Performance Parameters & Application Matching
1. Key Performance Specifications (Example: OMH-315)
【表格】
Parameter OMH-315 Technical Specifications Example Applications
Displacement 315 cm³/rev (Customizable ±15%) Mining winches, marine anchor windlasses
Rated Pressure 250 bar (3,625 psi) Continuous heavy-duty operations (e.g., shield machine propulsion)
Peak Torque 9,800 Nm (7,225 lb-ft) Track chassis steering drives
Maximum Speed 320 RPM (Load-sensing conditions) High-speed mixing equipment, centrifuges
Starting Efficiency ≥92% (ISO 6336 Standard) Cold starts in construction machinery (-20°C ambient)
Protection Rating IP69K (Dustproof + High-Pressure Wash) Food processing machinery, car wash systems
2. Typical Application Cases
• Construction Machinery:
• Rotary Drilling Rig Powerhead: OMH-500 paired with planetary reducer achieves 15,000 Nm torque for φ2.5m drilling, improving efficiency by 25%.
• Dynamic Compactor Winch: OMH-400 drives the winch, lifting 30-ton loads at 0.8 m/s with hydraulic impact attenuation ≤5%.
• Agricultural Machinery:
• Sugarcane Harvester Stripping Unit: OMH-200 provides 120 RPM, achieving ≥99% stripping efficiency with 3,000-hour MTBF.
• Silage Baling Press: OMH-160 drives compression rollers for 18-ton/hour throughput, reducing energy consumption by 18%.
• Industrial Automation:
• Hydraulic Press Main Cylinder Drive: OMH-630 paired with servo valves achieves 0.01 mm positioning accuracy under 2,000-ton pressure, with repeatability error ≤±0.02 mm.
• Logistics Sorting System: OMH-80 drives roller lines for 3,500 items/hour sorting with noise ≤72 dB(A).
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III. Selection Methodology & Competitor Comparison
1. Four-Step Selection Process
1. Load Torque Calculation:
TRequired=F×rηTransmission T_{\text{Required}} = \frac{F \times r}{\eta_{\text{Transmission}}} TRequired=ηTransmissionF×r
*(F: Load force, r: Action radius, η: Transmission efficiency [recommend 0.85])*
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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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