Product Overview
The NACHI UVN-1A-0A4-1.5-4-11 is a precision-engineered variable displacement vane pump manufactured by NACHI-FUJIKOSHI CORP., a globally recognized leader in hydraulic component technology. This pump operates on the proven variable-volume vane principle, utilizing a hydraulically balanced rotor, precision-ground vanes, and a movable cam ring that adjusts eccentricity to modulate output flow on demand. As a variable displacement unit, it delivers only the flow required by the system, resulting in significant energy savings and reduced heat generation compared to fixed displacement alternatives. The UVN series is specifically designed for industrial hydraulic power units where quiet operation, high volumetric efficiency, and reliable pressure compensation are essential. With its compact footprint and robust construction, this model is ideally suited for integration into machine tools, injection molding equipment, and other demanding industrial circuits requiring stable, controllable hydraulic power.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Vane Pump (Variable Displacement) |
| Model Designation | UVN-1A-0A4-1.5-4-11 |
| Manufacturer | NACHI-FUJIKOSHI CORP. |
| Displacement Control | Variable volume via adjustable cam ring eccentricity |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per UVN series) |
| Mounting & Connection | Standard ISO / NACHI flange interface |
| Shaft Type | Straight keyed shaft, standard industrial configuration |
| Fluid Compatibility | Mineral-based hydraulic oil, ISO VG 32–68 |
Engineering Features & Advantages
- Precision Performance: The variable displacement vane mechanism with hydraulically balanced rotor and precision-ground vanes ensures smooth, pulsation-free flow and excellent volumetric efficiency across the entire pressure range.
- Energy-Efficient Variable Output: The pressure-compensated cam ring automatically adjusts eccentricity to match system demand, minimizing power consumption and reducing oil heating during holding or low-flow phases.
- Low Noise Operation: NACHI’s refined vane and cam ring geometry significantly reduces pressure ripple and acoustic noise, making this pump ideal for noise-sensitive industrial environments.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with durable cartridge-style construction that simplifies maintenance and extends service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original NACHI UVN series mounting and porting standards, ensuring drop-in replacement without system modification.
Typical Industrial Applications
This variable displacement vane pump is widely deployed in hydraulic power units for plastic injection molding machines, CNC machining centers and lathes, metallurgical presses, and general industrial hydraulic systems requiring quiet, efficient, and controllable flow
PRODUCT IMAGES
NACHI UVN-1A-0A4-1.5-4-11 Variable Displacement Vane Pump
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine NACHI UVN-1A-0A4-1.5-4-11 Variable Vane Pump. This Japan-made 1.5 kW hydraulic component features a pressure-compensated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.