Product Overview
TheBMER3-350-WD-T31-Ris an orbital hydraulic motor specifically designed for drilling rig hoisting systems. It features high torque, low-speed operation, and a compact structure, making it ideal for applications requiring precise control of lifting force in drilling equipment.
Technical Specifications
• Model: BMER3-350-WD-T31-R
• Type: Orbital Hydraulic Motor (Gerotor Motor)
• Displacement: 350 cc/rev (may vary slightly by model)
• Rated Pressure: Typically 20–25 MPa (refer to product manual for exact values)
• Peak Pressure: Short-term tolerance up to 31.5 MPa (subject to actual parameters)
• Speed Range: 0–300 rpm (excellent low-speed stability)
• Torque Output:
• Rated Torque: Approx. 800–1,000 N·m (depends on pressure and displacement)
• Peak Torque: Up to 1.5× rated torque (for heavy-duty starting)
• Weight: Approx. 30–50 kg (actual weight may vary)
• Mounting Options: Flange or axial mounting, supports multiple connection methods
Key Features
1. High Torque Density: Gerotor gear design enables large torque output for heavy-duty hoisting in drilling rigs.
2. Low-Speed Stability: Smooth operation at low speeds reduces vibration and enhances drilling precision.
3. Compact Design: Small size and lightweight facilitate integration into limited spaces on drilling rigs.
4. High Efficiency: High volumetric efficiency minimizes energy loss and reduces power consumption.
5. Durability: Constructed with high-strength materials and advanced sealing for harsh conditions (e.g., mud, dust).
6. Self-Locking Capability (Optional): Some models offer self-locking to prevent unintended movement under external forces.
Applications
• Oil Drilling Rigs: For lifting/lowering drill pipes and rotating drilling tools.
• Geological Exploration Rigs: Provides stable lifting force in complex formations.
• Mining Drilling Rigs: Suitable for underground or open-pit drilling hoisting systems.
• Construction Drilling Rigs: Used in foundation construction, tunneling, and other drilling operations.
Selection & Usage Considerations
1. Pressure Matching: Ensure rated pressure aligns with the drilling rig’s hydraulic system to avoid overload or inefficiency.
2. Flow Requirements: Select a hydraulic pump with appropriate flow rate based on motor displacement and speed needs.
3. Cooling & Lubrication: Maintain clean hydraulic oil and replace it regularly to prevent internal wear.
4. Installation & Maintenance:
• Follow the installation manual strictly to avoid excessive axial/radial loads.
• Regularly inspect seals and bearings; replace worn components promptly.
5. Safety Precautions: Install protective covers to prevent foreign object ingress or accidental contact.
Comparison with Similar Models
• BMER3-250-WD: Smaller displacement (250 cc/rev) for lighter rigs or lower loads.
• BMER3-400-WD: Larger displacement (400 cc/rev) with higher torque but increased size/weight.
• Alternative Brands: Products from Rexroth, Parker, etc., may differ in efficiency or cost—compare based on specific needs.
