Nachi UVN Series Pump | UVN-1A-1A3-1.5, UVN-1A-1A4-2.2 | Variable Vane Unipump

Nachi UVN Series Energy-Saving Variable Vane Unipumps

Product Overview: The Nachi UVN Series is the ideal solution for achieving compactness and energy efficiency in Hydraulic Power Units (HPU). As a definitive Unipump that perfectly integrates a variable displacement vane pump with a high-efficiency motor, the UVN series eliminates the need for couplings and bell housings, significantly reducing noise and footprint. This selection features three core configurations: UVN-1A-1A3-1.5-4-Q01-6063C, UVN-1A-1A4-2.2-4-11, and UVN-1A-1A3-1.5-4-6267N. The UVN series is the premier choice for machine tools, injection molding auxiliary systems, automated hydraulic fixtures, and compact industrial hydraulic stations.

Key Technical Advantages:

• Superior Energy Efficiency: The variable displacement design automatically reduces flow during high-pressure holding phases, cutting power consumption by over 30% compared to fixed-pump systems.

• Integrated Compact Architecture: The motor and pump share a single shaft, removing mechanical losses from couplings and drastically reducing overall dimensions for easy integration.

• Ultra-Low Noise Operation: Optimized vane pump internal geometry and motor sound insulation ensure a stable and quiet working environment across all pressure loads.

• Precise Pressure & Flow Adjustment: Equipped with manual pressure adjustment knobs and flow control screws, allowing users to easily set optimal conditions based on system requirements.

• Rapid Response Time: The highly sensitive variable mechanism reacts instantly to load changes, minimizing hydraulic shocks within the circuit.

• Target Applications: CNC machine tool spindle clamping, hydraulic chuck drives, automated line power sources, and industrial lubrication systems.

Detailed Models & Parameters:

• Core Series: Nachi Fujikoshi UVN Series Unipump.

• Model Keywords: UVN-1A-1A3-1.5, UVN-1A-1A4-2.2, Q01-6063C, 6267N.

• Technical Specs Decoding:

  • UVN-1A: Series frame code representing the compact variable vane unipump.

  • 1A3 / 1A4: Refers to pump displacement grades (e.g., 8-12 cm³/rev).

  • 1.5 / 2.2: Refers to the integrated motor power output (1.5kW or 2.2kW).

  • -4: Indicates a 4-pole motor configuration.

• Pressure Specs: Maximum operating pressure up to 8 MPa (80 Bar).