OMM Orbital Motor OMP Orbital Motor
4 month ago
Product details
OMH Orbital Motors OMT Orbital Motors
A2FM Motors NHM Motors
1. Product Positioning and Series Classification
OMK6 Orbital Motor
• Positioning: Compact and cost-effective orbital motor designed for light-to-medium industrial equipment.
• Design Features:
• Single/Double-Row Gear Structure: Optimized gear meshing angles to reduce noise (<65dB).
• Modular Design: Supports rapid customization of flanges, shaft ends, and ports.
• Lightweight: Aluminum alloy housing, reducing weight by 15%-20% compared to similar products.
• Technical Specifications:
• Displacement Range: 50-600 cm³/rev (standard); 800 cm³/rev (large displacement optional).
• Rated Pressure: 210 bar (continuous), peak pressure 250 bar.
• Speed Range: 0-800 rpm (no-load), 0-500 rpm (full-load).
• Peak Torque: 800-5000 Nm (varies by displacement).
OMPT Orbital Motor
• Positioning: High-performance, reinforced orbital motor engineered for heavy-duty and harsh operating conditions.
• Design Features:
• Multi-Row Composite Gears: 3+ rows of gears to enhance torque density (20% higher torque per unit displacement).
• High-Load Bearings: Crossed roller bearings + tapered roller bearings for combined axial/radial load support.
• Upgraded Sealing: Metal-to-metal seals + V-rings, achieving IP67 protection (dust/waterproof).
• Technical Specifications:
• Displacement Range: 200-3000 cm³/rev (standard); 4000 cm³/rev (extra-large displacement optional).
• Rated Pressure: 280 bar (continuous), peak pressure 320 bar.
• Speed Range: 0-400 rpm (no-load), 0-250 rpm (full-load).
• Peak Torque: 3000-18000 Nm (varies by displacement).
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2. Core Design Differences Comparison
【表格】
Parameter OMK6 Orbital Motor OMPT Orbital Motor
Gear Structure Single/double-row spur or helical gears Multi-row composite helical gears (3+ rows)
Bearing System Deep groove ball bearings (radial load) Crossed roller bearings (axial + radial load)
Sealing Design Dual-lip rubber seals (IP65) Metal-to-metal seals + V-rings (IP67)
Cooling Method Natural cooling (fan optional) Forced oil cooling (high-temp applications)
Mounting Interface SAE A/B/C flanges (standard) Custom flanges (non-standard bolt patterns)
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3. Performance Comparison and Selection Guide
(1) Torque and Efficiency
• OMK6:
• Mechanical Efficiency: 85%-88% (standard operating conditions).
• Volumetric Efficiency: 92%-94% (medium-low speeds).
• Applications: Light-duty equipment (e.g., small excavators, agricultural sprayers).
• OMPT:
• Mechanical Efficiency: 88%-90% (optimized gear meshing).
• Volumetric Efficiency: 94%-96% (low-speed, high-load).
• Applications: Heavy-duty equipment (e.g., mining drills, concrete pumps).
(2) Environmental Adaptability
• OMK6:
• Operating Temperature: -20°C to +60°C (mineral oil).
• Contamination Resistance: Compatible with NAS 6-grade oil (requires regular filtration).
• OMPT:
• Operating Temperature: -40°C to +80°C (low-temp startup option available).
• Contamination Resistance: Compatible with NAS 9-grade oil (built-in magnetic filter).
(3) Maintenance and Lifespan
• OMK6:
• Oil Change Interval: 2000 hours (mineral oil).
• Expected Lifespan: 8000-12000 hours (moderate loads).
• OMPT:
• Oil Change Interval: 4000 hours (synthetic oil).
• Expected Lifespan: 15000-20000 hours (continuous heavy loads).
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4. Typical Application Cases
Case 1: Small Excavator (OMK6 Series)
• Requirements: Slewing drive for low-speed stability and low noise.
• Selection Basis:
• Displacement: 300 cm³/rev (matches hydraulic pump flow).
• Pressure: 180 bar (meets slewing load).
• Interface: SAE B flange (direct replacement for existing models).
• Results: Noise reduced by 10dB, energy consumption decreased by 8%.
Case 2: Mining Drill (OMPT Series)
• Requirements: Drill rod rotation drive for shock load resistance.
• Selection Basis:
• Displacement: 2000 cm³/rev (high torque output).
• Sealing: Metal-to-metal seals (prevents rock debris intrusion).
• Cooling: Forced oil cooling (adapts to underground high temperatures).
• Results: Drilling efficiency increased by 20%, fault interval extended to 3000 hours.
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5. Key Selection Steps
1. Define Operating Conditions:
• Load torque (Nm), working speed (rpm), system pressure (bar).
• Ambient temperature, oil cleanliness (NAS grade).
2. Match Displacement and Pressure:
• Formula: Displacement (cm³/rev) = Flow (L/min) × 60 / Speed (rpm).
• Example: Flow = 80 L/min, Speed = 300 rpm → Displacement = 16 cm³/rev (select standard 25 cm³/rev).
3. Verify Interface Compatibility:
• Check shaft dimensions (diameter, keyway), flange bolt patterns, and port threads (NPT/BSP).
4. Consult Manufacturer Support:
• Provide load spectrum data for customized selection reports.
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6. Common Issues and Solutions
【表格】
Issue OMK6 Possible Causes OMPT Possible Causes Solutions
Motor Leakage Seal aging or oil contamination Metal seal scratches Replace seals, upgrade oil filtration
Insufficient Torque Low system pressure or gear wear Bearing seizure or undersized displacement Adjust pressure valve, inspect bearing lubrication
Abnormal Noise Bearing failure or cavitation Poor gear meshing Replace bearings, optimize suction line design
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