Product Overview

The NACHI PVD-3B-56-21G is a high-performance variable displacement axial piston pump engineered by NACHI-FUJIKOSI, a globally recognized leader in precision hydraulic technology. Operating on the proven swashplate principle, this pump delivers infinitely variable flow control by adjusting the swashplate angle, allowing precise matching of pump output to system demand. With a nominal displacement of 56 cm³/rev, the PVD-3B-56-21G is designed for open-circuit industrial hydraulic systems requiring high pressure capability, superior volumetric efficiency, and smooth, responsive control. Its robust axial piston design makes it a preferred choice for demanding applications where energy efficiency and precise flow modulation are critical.

Technical Specifications

Parameter	Specification / Feature
Component Type	Variable Displacement Axial Piston Pump
Model Designation	PVD-3B-56-21G
Manufacturer	NACHI (NACHI-FUJIKOSI)
Displacement	56 cm³/rev (nominal)
Working Principle	Swashplate-type axial piston, variable displacement
Operating Pressure	Up to 210 bar continuous / 250 bar peak (standard PVD series rating)
Speed Range	Up to 2,500 rpm (dependent on circuit and fluid conditions)
Control Type	Variable displacement with pressure/flow compensator options
Mounting & Connection	Standard SAE / ISO flange mounting, splined or keyed shaft
Hydraulic Fluid	Mineral-based hydraulic oil, ISO VG 32–68

Engineering Features & Advantages

Precision Swashplate Control: The axial piston design with variable swashplate angle enables infinitely adjustable displacement, delivering exact flow matching to system demand and significantly reducing energy consumption compared to fixed-displacement alternatives.
High Pressure Capability: Engineered to operate continuously at pressures up to 210 bar, with peak ratings of 250 bar, making it suitable for high-load industrial circuits requiring reliable force output.
Superior Volumetric Efficiency: Precision-machined pistons, cylinder barrel, and valve plate assembly minimize internal leakage, ensuring consistent performance and reduced heat generation even under sustained duty cycles.
Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
Direct Fit Replacement: Exact dimensional and functional compatibility with original NACHI standards, allowing straightforward retrofit into existing hydraulic systems without rework.

Typical Industrial Applications

Its robust axial piston design makes it a preferred choice for demanding applications where energy efficiency and precise flow modulation are critical.

PRODUCT IMAGES

NACHI PVD-3B-56-21G 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-56-21G Variable Displacement Piston Pump. This Japan-made hydraulic component features a swashplate design, delivering reliable, high-pressure fluid control for heavy-duty industrial systems.