Komatsu PC75UU Swing Motor
2 month ago
Product details
1. Equipment Positioning & Core Advantages
TheKomatsu PC75UUis a compact hydraulic excavator designed specifically foroperations in confined spaces. Itszero tail swing (Zero Tail Swing)andnarrow-body designmake it ideal for urban construction, pipeline installation, landscaping, and other scenarios requiring high maneuverability. By optimizing theswing system, it achieves360° unrestricted rotation, eliminating the need for frequent repositioning and significantly enhancing operational efficiency.
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2. Swing System Technical Features
• Zero Tail Swing Design: The upper structure does not extend beyond the track width during rotation, preventing collisions with obstacles—perfect for narrow alleys or indoor operations.
• High-Precision Swing Control: Utilizes a closed-loop hydraulic control system for smooth, shock-free rotation, extending motor lifespan.
• Enhanced Durability: Reinforced slew ring bearings and gear sets withstand high-frequency rotational loads, suitable for heavy-duty applications.
• Low Maintenance: Sealed structure prevents dust and moisture ingress, reducing lubricant leakage and maintenance costs.
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3. Performance Specifications (PC75UU-2 Example)
• Engine Power: Approx.36–40 kW(model-dependent), meeting power demands for compact equipment.
• Swing Speed: Typically9–12 rpm(adjustable), balancing efficiency and stability.
• Swing Torque: Focuses onlow-speed, high-torque outputfor stable rotation in complex terrains.
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4. Typical Applications
• Urban Infrastructure: Underground pipeline laying, power trench excavation, narrow street construction.
• Landscaping: Greenbelt renovation, small-scale earthmoving, tree transplantation.
• Indoor Operations: Warehouse demolition, basement expansion, interior renovation support.
• Rescue & Disaster Relief: Debris clearance in disaster zones, narrow-space rescue channel creation.
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5. Maintenance & Service Recommendations
• Regular Slew Ring Inspection: Check grease condition every500 hours; replenish or replace as needed.
• Clean Seals Daily: Remove dust and debris from rotating components after each shift to prevent seal wear.
• Monitor Hydraulic Oil Quality: Test for contamination every1,000 hours; replace filters or oil if necessary.
• Avoid Overloading: Prevent excessive wear on gears/bearings by staying within load limits during rotation.
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6. Competitive Advantages
• vs. Caterpillar 307v1/v2: The PC75UU’s zero tail swing offers superior agility in tight spaces, while the Cat 307 series prioritizes versatility.
• vs. XCMG 135D/150D or Sany 135C: As a7-ton-classmachine, the PC75UU is more compact and precise for light-duty tasks, whereas the 13–15-ton XCMG/Sany models excel in large-scale earthmoving.
• vs. Doosan TSM68: The PC7UU’s hydraulic system is factory-optimized for seamless integration, whereas the TSM68 (as a third-party part) may pose compatibility risks.
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7. Purchasing Recommendations
• Prioritize Genuine Parts: ChooseKomatsu-certified swing motorsto ensure perfect compatibility with the hydraulic system.
• Verify Model Matching: Confirm the motor model (e.g., PC75UU-1/2/3) aligns with your equipment’s year and configuration.
• Assess Operational Needs: For high-frequency or heavy-duty rotation, consider upgrading to a reinforced motor or hydraulic system.
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