Hydraulic Parts
Hydraulic Parts
Specifically designed for use with construction machinery such as excavators and loaders.
Supports OEMs such as XCMG, Lingong, and Liugong, exported globally, providing complete hydraulic system solutions.
Hydraulic Pumps (Main Pump / Variable Displacement Piston Pump)
Product Positioning
Swashplate type axial piston variable displacement pump, providing a high-pressure, high-flow power source for excavators and loaders.
Compatible with 6–50 ton class construction machinery, covering mainstream series such as K3V and KP3V.
Core Series and Parameters
K3V Series
- Models: K3V112, K3V140, K3V180, K3V280
- Displacement: 112–280 mL/r
- Pressure: Rated 32MPa, Peak 35MPa
- Speed: 2000–2200 r/min
- Control: Load-sensitive, constant power, pressure cut-off, electro-proportional
·KP3V Series: Suitable for 6–10 ton mini excavators, compact structure, high efficiency, low noise
Core Advantages
·High power density, small size, light weight, suitable for compact models.
·Fast response, precise control, smooth compound actions, lower fuel consumption.
·Wear-resistant plungers/cylinder/distributor plate, long life, high reliability.
·Supports positive/negative flow, load sensing, compatible with mainstream electronic control systems.
Hydraulic Valves (Multi-way Main Valves / Control Valves)
Product Positioning:
- Core control element for excavators, enabling precise control and complex movements of the boom, stick, bucket, swing, and travel.
- Divided into three series: positive flow, negative flow, and load-sensing, suitable for 6–50 ton models.
Core Series and Features:
- Positive Flow Multi-way Valve: Faster response, lower energy consumption, and 10–15% efficiency improvement. Features confluence, regeneration, swing priority, and straight-line travel functions. Reserved interface for hydraulic breakers/shear shears, enabling multi-functionality.
- Negative Flow Multi-way Valve: Mature and reliable, cost-effective, suitable for traditional models. Precision-machined valve core, excellent micro-motion performance, and smooth operation.
- Load-sensing Multi-way Valve: On-demand flow supply, significant energy savings, and strong adaptability to complex working conditions.
Core Advantages:
- · High integration, reducing piping and minimizing leakage and failure points.
• High valve core hardness, excellent wear resistance, and long service life.
• Low pressure loss, high system efficiency, and improved fuel economy for the entire machine.
• Customizable additional valve plates to adapt to attachments and special working conditions.
Hydraulic Motors (Slewing/Travel Piston Motors)
Product Positioning:
Axial piston motors, used for excavator slewing and travel, providing high torque and stable speed.
Core Series and Parameters
Swing Motor (M5X Series):
- Displacement: 55–280 mL/r
- Torque: Maximum 3000–12000 N・m
- Speed: 0–30 r/min
With brake valve and balance valve, smooth start/stop, precise positioning
Travel Motor (M2X/M3X Series):
- Displacement: 80–500 mL/r
- Torque: Maximum 5000–20000 N・m
- Compatible with tracked travel, strong climbing ability, high traction
Core Advantages
- Low speed, high torque, smooth start, no shock.
- Compact structure, small installation space, compatible with excavator chassis.
- Equipped with powerful brakes, safe and reliable, prevents slippage/spinning.
- Wear-resistant design of plunger/cylinder/distributor plate, long service life, low maintenance.
Applications and Services
Applications: Excavators, loaders, road rollers, mining machinery, port equipment, etc.
FAQ
Q: 1. What are the product types?
A: Main products: Hydraulic piston pumps, multi-way control valves, swing motors, travel motors
Main applications: Excavators, loaders, road rollers, drilling rigs, and other construction machinery
Q: 2. What tonnage excavators are compatible?
A: Covering all excavators from 6 to 50 tons
Small excavators: 6–15 tons
Medium excavators: 15–26 tons
Large excavators: 26–50 tons
Q: 3. What are the hydraulic pump series?
A: K3V series (double variable piston pump): K3V112, K3V140, K3V180, etc.
Control methods: Load-sensitive, constant power, pressure cut-off, electro-proportional control
Features: Fast response, fuel efficiency, low noise, long service life
Q: 4. What types of hydraulic valves are there?
A: Excavator Main Control Valve (Multi-way Valve)
Supports: Positive flow, negative flow, load sensitive
Functions: Confluence, regeneration, swing priority, linear travel, breaker interface
Features: Excellent micro-motion, smooth compound movements, low internal leakage, high efficiency
Q: 5. What types of hydraulic motors are there?
A: Swing motor: Controls the rotation of the upper structure, with braking, smooth start and stop.
Travel motor: Drives the tracks, high torque, strong climbing ability.
All are axial piston type, high pressure, durable.
Q: 6. What is the system pressure?
A: Rated pressure: 31.5–32 MPa
Peak pressure: 35 MPa
Suitable for heavy-duty, mining, and earthmoving applications.
Q: 7. How to select a model?
A: Provide: Equipment tonnage, model, original brand and model.
We can accurately match and guarantee direct installation and use.