VDN-1B Series Variable Vane Uni-Pump | VDN-1B-1A3, 1A4, 2A4 | Integrated Motor Pump

VDN-1B Series High-Performance Variable Vane Uni-Pumps

Product Overview: The VDN-1B Series is the industry standard for achieving “Compactness and Extreme Silence” in hydraulic systems. As a Uni-Pump (Integrated Motor-Pump Set), it features a specialized flange that directly couples the variable vane pump to the motor, eliminating the vibration and alignment issues common with traditional couplings. This range highlights core specifications including VDN-1B-1A2-11, VDN-1B-0A4-J-6311C, VDN-1B-1A3, and high-power configurations like VDN-1B-1A3-2.2-4-12. Utilizing a precision pressure compensation mechanism, the VDN-1B series automatically de-strokes to minimum displacement during pressure-holding phases, delivering significant energy savings and maintaining exceptionally low oil temperatures.

Key Technical Advantages:

• Integrated Uni-Pump Design: Direct motor-to-pump coupling eliminates the need for pump brackets and couplings. This saves 40% of installation space and fundamentally solves operational noise problems.

• Intelligent Energy Savings: Features automatic pressure compensation. Once system pressure reaches the preset point (e.g., 1A3 or 2A4 settings), flow drops to a minimum, drastically cutting power loss and heat generation.

• Ultimate Silent Performance: High-precision rotors and side-plate compensation technology ensure minimal decibel levels and superior thermal management even during prolonged deadhead cycles.

• Rapid Dynamic Response: The sensitive variable mechanism reacts instantaneously to actuator movements (e.g., cylinders or clamps), ensuring consistent stability for precision CNC equipment.

• Target Applications: CNC machine clamping circuits, automated machines, precision grinding machines, tapping units, and compact energy-saving hydraulic power units.

Detailed Models & Parameters:

• Core Series: VDN-1B Series Variable Volume Vane Uni-Pump.

• Model Keywords: VDN-1B-1A2-11, VDN-1B-0A4-J-6311C, VDN-1B-1A3, VDN-1B-1A4, VDN-1B-2A4, 2A3, 1A3-U-6311C, VDN1B-1A3-2.2-4-12.

• Pressure Adjustment Ranges: 1A2 (0.8-2.5 MPa); 1A3 (1.5-3.5 MPa); 1A4/2A4 (3.5-7.0 MPa).

• Technical Specs: J-6311C / U-6311C (Specific motor and flange protocols); 2.2-4 (2.2kW 4-Pole motor configuration).