Japan Type UVN Series Variable Vane Uni-Pump | UVN-1A-0A2, UVN-1A-1A3

Japan Type UVN Series High-Performance Variable Vane Uni-Pumps

Product Overview: The UVN Series variable volume Uni-Pumps represent a cutting-edge solution for achieving “Extreme Integration” and “Low Noise” in hydraulic systems. Featuring the advanced Uni-Pump (Motor-Pump Integration) design, these units use high-precision direct coupling between the motor and the variable vane pump, eliminating vibration and alignment issues common with traditional couplings. This range highlights core specifications including UVN-1A-0A2-0.7-4-12U and UVN-1A-1A3-1.5-4-11. Utilizing a precision pressure compensation mechanism, the UVN series automatically de-strokes to minimum displacement during pressure-holding phases—delivering significant energy savings and maintaining exceptionally low oil temperatures.

Key Technical Advantages:

• Highly Integrated Uni-Pump Design: Compact layout integrates the motor and pump head, eliminating the need for extra 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., 0A2 or 1A3 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 chuck clamping systems, precision grinding machines, automated machining units, tapping units, and compact energy-saving hydraulic power units.

Detailed Models & Parameters:

• Core Series: UVN Series Variable Volume Vane Uni-Pump.

• Model Keywords: UVN-1A, UVN-1A-0A2-0.7-4-12U, UVN-1A-1A3-1.5-4-11.

• Power Ratings: 0.7 (0.75kW motor); 1.5 (1.5kW motor).

• Motor Specs: 4 (4-Pole motor); 11 / 12U (Design sequence and specific U-type identifiers).

• Pressure Ranges: 0A2 (0.8-2.5 MPa); 1A3 (2.0-5.0 MPa); 1A4 (Max pressure up to 7.0 MPa).