Product Overview

The NACHI PVD-3B-56P-18G5-4191A is a variable displacement axial piston pump engineered by NACHI-FUJIKOSHI, a globally recognized leader in precision hydraulic technology. Operating on the proven swashplate principle, this pump delivers infinitely variable flow output by adjusting the swashplate angle, allowing precise matching of pump displacement to system demand. With a nominal displacement of 56 cm³/rev, the PVD-3B series is purpose-built for high-pressure industrial hydraulic circuits where energy efficiency, responsive control, and long service life are critical. Its compact, high power-density design makes it a preferred choice for mobile and industrial machinery requiring reliable variable flow at operating pressures up to 210 bar.

Technical Specifications

Parameter	Specification / Feature
Component Type	Variable Displacement Axial Piston Pump
Model Designation	PVD-3B-56P-18G5-4191A
Nominal Displacement	56 cm³/rev
Operating Pressure	Up to 210 bar (rated); 250 bar peak
Control Type	Variable displacement via swashplate angle adjustment
Mounting & Connection	Standard SAE / ISO flange mounting with splined drive shaft
Rotation	Clockwise (viewed from shaft end)

Engineering Features & Advantages

Precision Performance: The swashplate-type axial piston design with nine pistons ensures smooth, high-efficiency power transfer with minimal pressure ripple and excellent volumetric efficiency across the full displacement range.
Variable Displacement Control: Infinitely adjustable flow output enables precise actuator speed control and significant energy savings by eliminating excess flow through relief valves.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened piston shoes, precision-ground cylinder bores, and heavy-duty bearings rated for high radial and axial loads.
Direct Fit Replacement: Exact dimensional and functional compatibility with original NACHI OEM standards, ensuring drop-in replacement without modification to existing hydraulic circuits.

Typical Industrial Applications

This NACHI PVD-3B-56P-18G5-4191A axial piston pump is widely deployed in plastic injection molding machines, metallurgical presses, construction and marine hydraulic systems, CNC machine tools, and mobile equipment requiring precise variable flow control at high operating pressures.

PRODUCT IMAGES

NACHI PVD-3B-56P-18G5-4191A Variable Displacement Axial Piston Pump

⚡ 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 PVD-3B-56P-18G5-4191A Variable Displacement Piston Pump. This Japan-made hydraulic component features a swashplate design, delivering reliable, high-pressure fluid power for heavy-duty industrial systems.