K3V112(9C) Booster (Hydraulic Pump/Lift Unit)

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3 year

Product details

TheK3V112(9C) Booster (Hydraulic Pump/Lift Unit)is a high-performance hydraulic pump or lifting unit designed for heavy-duty applications. Below is a detailed breakdown of its technical specifications, applications, performance features, and market positioning:

1. Technical Specifications

• Base Model: K3V112

• Displacement: Twin-piston pump structure with a main pump displacement of110 mL/rev × 2and a pilot pump displacement of10 mL/rev.

• Configuration: Comprises two axial piston pumps and a gear-type pilot pump connected in series, integrated with a pilot relief valve.

• Variable Displacement Control Methods:

• Total Power Variable Control:

• Adjusts the variable signal based on the sum of the two pumps' working pressures (P1 + P2), maintaining a nearly constant combined power output to optimize engine power utilization and prevent stalling.

• Negative Flow Control:

• Regulates pump displacement using feedback pressure (Pn1 and Pn2) from the multi-way valve. Displacement is minimized when the control lever is in neutral (maximizing feedback pressure).

• Engine Speed-Sensing Variable Control:

• Uses an engine speed sensor, electronic controller, and proportional solenoid valve to modulate pump displacement via hydraulic pressure, ensuring alignment between hydraulic pump power and engine speed.

• Pressure and Flow Characteristics:

• Output Pressure: Dynamically adjusts to load demands, with safety valves limiting maximum pressure to prevent overloading.

• Flow Rate:

• Theoretical Flow (Q₀): Calculated as displacement × pump speed.

• Actual Flow (Q): Q₀ × volumetric efficiency, which varies with output pressure.

2. Applications

• Construction Machinery:

• Primary hydraulic power unit for excavators, cranes, and similar equipment (e.g., K3V112DT pumps are commonly used in hydraulic systems of models like SK200-8 excavators).

• Industrial Equipment:

• Suitable for industrial machinery requiring high-pressure, high-flow hydraulic power, such as injection molding machines and die-casting machines.

• Marine and Aerospace:

• May be deployed in marine steering systems or aircraft hydraulic systems where ultra-high reliability is critical.

3. Performance Features

• Efficiency and Stability:

• Total power and engine speed-sensing controls optimize power matching, enhancing system efficiency.

• Negative flow control minimizes energy loss and improves responsiveness.

• Durability and Reliability:

• High-strength materials and precision manufacturing ensure long-term stable operation under high-pressure, high-frequency conditions.

• Safety valves and pressure cut-off mechanisms prevent overloading and safeguard equipment.

• Flexibility and Scalability:

• Supports multiple variable control modes for adaptable performance tuning.

• Modular design simplifies maintenance and upgrades, reducing lifecycle costs.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch , hydraulic system

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