Sany 75 / XCMG 80 HUSCO Main Control Valve Assembly
Basic Information
- Brand: HUSCO
- Model: SCX180 (Common part number: SCX180‑H11)
- Applicable Models:
- Sany: SY75C‑9 / SY75‑10 (7-ton mini excavator)
- XCMG: XE80 (8-ton mini excavator)
- Alternative Names: Main Valve, Multi-way Valve, Distribution Valve
Core Parameters
- System: Load Sensing + Pressure Compensated Load Sensing (PCLS)
- Rated Pressure: 26.5 MPa
- Rated Flow: Approx. 180 L/min
- Control Mode: Hydraulic pilot control
Standard Valve Section Configuration
1. Inlet valve section (with main relief valve & pressure regulating valve)
2. Boom valve section
3. Dozer blade valve section
4. Bucket valve section
5. Arm valve section
6. Right travel valve section
7. Left travel valve section
8. Spare valve section (for breaker / quick coupler installation)
9. Swing valve section
10. End cover
Functions & Features
Functions
Distribute flow from main hydraulic pump, and control all movements of actuators including boom, arm, bucket, travel, swing and attachments. Integrated with relief, pressure reduction, check, regeneration and priority control functions.
Features
- High flow rate and rapid response
- High rated pressure for powerful performance, suitable for heavy-load operation and breaker work
- High integration with modular valve sections, fewer pipelines and lower failure rate
- Reliable and durable, designed for frequent working conditions of mini excavators
- High requirement on hydraulic oil cleanliness; regular filter replacement is recommended to prevent contamination
Common Models & Replacements
Original Part Numbers
- Sany: 60015195 / SCX180‑H11
- XCMG: Matched with SCX180 series
1. Core Functions
1. Hydraulic System Control
• Regulates the flow and pressure of hydraulic oil to precisely control multiple movements of construction machinery, including:
• Sany 75 Excavator: Boom lifting/lowering, arm extension/retraction, bucket rotation, and steering.
• XCMG 80 Bulldozer: Blade lifting/lowering, ripper operation, vehicle steering, and braking.
2. Multi-Circuit Coordination
• Supports simultaneous operation of multiple hydraulic circuits, ensuring smooth performance in complex tasks (e.g., digging while steering) and improving operational efficiency.
2. Application Scenarios
• Sany 75 Excavator
• Suitable for small-scale earthmoving, municipal construction, and agricultural land reclamation, requiring high-frequency, low-load operation.
• XCMG 80 Bulldozer
• Primarily used for heavy-duty tasks such as large-scale earth pushing, site leveling, and roadbed excavation, demanding high-pressure and high-impact resistance.
3. Technical Advantages
1. Precision Control
• Utilizes proportional control technology for fine-tuning hydraulic oil flow and pressure, enhancing operational accuracy (e.g., precise bucket loading control).
2. Contamination Resistance
• Integrated high-precision filters inside the valve body trap particles ≥10μm, extending hydraulic system lifespan and adapting to harsh conditions (e.g., muddy or dusty environments).
3. Modular Design
• Composed of independent modules, allowing quick replacement of damaged components and reducing downtime by >50%, lowering maintenance costs.
4. Structural Features
1. Materials & Manufacturing
• Valve Body: High-strength cast iron (e.g., HT250) with compressive strength ≥250MPa, ensuring excellent impact resistance.
• Seals: Nitrile rubber (NBR) or fluororubber (FKM) for oil resistance and high-temperature tolerance (up to 120°C), preventing leaks.
2. Interfaces & Dimensions
• Conforms to ISO 6162-1/2 standards, compatible with most hydraulic systems in construction machinery.
• Customized dimensions per model (e.g., Sany 75: ~800mm length; XCMG 80: ~1000mm length) for seamless installation.
5. Compatibility Verification
• Model Matching
• Ensure the assembly’s model number (e.g., HUSCO 0123456 for Sany 75; HUSCO 7890123 for XCMG 80) matches the equipment exactly to avoid functional failures.
• Performance Testing
• Conduct pressure tests (max pressure ≥25MPa) and flow tests (rated flow ≥100L/min) before installation to verify compliance with OEM standards.
6. Selection Recommendations
• Prioritize OEM Parts
• Purchase through HUSCO’s authorized channels to guarantee identical materials, craftsmanship, and seals as original components, preventing hydraulic system malfunctions.
• Customization Options
• For specialized needs (e.g., adding solenoid valve circuits), contact HUSCO for tailored development, providing hydraulic system diagrams and operational parameters.
