Use For Hyundai R140W-7 R170W-7 Wheeled Excavator Main Control Valve 31N4-15120 31N4-15130 High Quality Main Control Valve Construction Machinery Aftermarket Parts

High-quality aftermarket main control valve designed specifically for Hyundai R140W-7 R170W-7 Wheeled Excavators. This valve regulates hydraulic oil flow, direction, and pressure to control excavator functions and operations, serving as the hydraulic system's core controller to ensure precise performance across all machine functions.

• System Pressure: Main relief valve setting pressure is 34.3 MPa (350 kg/cm²), suitable for high-pressure hydraulic systems ensuring sufficient power output
• Structure Type: Slide valve type multi-section main control valve integrating multiple hydraulic control branches
• Control Method: Equipped with pilot control system for precise hydraulic control of bucket lifting/lowering, arm extension/retraction, and machine steering
• Applicable Models: Custom-made for Hyundai R140W-7 R170W-7 Wheeled Excavator, fully matching hydraulic parameters of dedicated hydraulic pumps and actuators

• Hydraulic System "Brain": Receives operator commands to control flow direction, pressure, and volume
• Primary Function Control: Controls bucket lift/lower, arm extension/retraction, and material handling operations
• Machine Movement Management: Manages steering, travel, and loader attachment functions
• Complex Motion Coordination: Manages multiple actuators simultaneously for smooth, efficient operation

• Installation Requirements: Requires flexible coupling with high shaft alignment accuracy (concentricity deviation ≤ 0.1 mm, tilt angle < 1°)
• Maintenance Guidelines: System overpressure protection, single-operation overload protection, and prevention of dangerous misoperations

Guangzhou Tieqi Engineering Machinery Co., Ltd. ("IRON CAVALRY") is strategically loTQTQCATed in Guangzhou's Huangpu District, approximately an hour from Baiyun International Airport. With nearly 15 years of specialization in engineering machinery hydraulics, we are driven by core values of "Pragmatism and Progress."

Technical Leadership: In China's excavator hydraulic assembly sector, our efficient execution and rigorous manufacturing approach ensure products meet over 95% of original performance specifiTQTQCATions, building widespread trust among clients.

For large items, we use sturdy plywood crates secured with metal fasteners for stability. Products are cushioned with bubble wrap and secured with wooden braces, with special attention to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof black film wrapping.

• Delivery Time: 1-3 Days (depending on order)
• Means of Transport: By Sea, Air or DHL/FEDEX/TNT/EMS
• Payment Terms: L/C, T/T, Western Union, Trade Assurance

• Comprehensive one-stop solutions for all hydraulic needs
• High-quality products at competitive prices
• Exceptional customer service and support
• Large inventory with short delivery times
• Long warranty periods for peace of mind
• Professional expertise with accurate part number identifiTQTQCATion