Nachi 15 HP Direct-Drive Hydraulic Power Package

Up for sale is a heavy-duty, professionally matched Direct-Drive Hydraulic Power Assembly featuring a high-pressure Nachi Model VDC-3B-1A3-E20 Variable Volume Vane Pump cleanly coupled to a premium 15 HP Continuous-Duty Electric Motor.

Engineered for ultra-quiet operation and precise pressure compensation, this unit delivers high mechanical efficiency with minimal power loss at full cutoff. This heavy-duty pump/motor combination serves as an excellent, reliable hydraulic power source for machine tools, industrial presses, automated production lines, and heavy-duty manufacturing cells.

High-Value Key Features

• Matched Direct-Drive Efficiency: Pre-assembled package mounts a 15 HP motor directly to the pump frame via a C-face bell housing. This eliminates shaft misalignment issues, drastically minimizes internal drive coupling wear, and saves hours of sourcing and engineering labor for the buyer.
• Exclusive 3-Point Control Ring Support: Features Nachi’s advanced hydraulic 3-point support piston mechanism to stabilize the pump ring. This drastically reduces internal vibration and housing deflection, resulting in ultra-quiet operation even at maximum pressure loads.
• Sharp Pressure Cut-Off Characteristics: Optimized variable-volume design ensures instant, responsive flow adjustments. When the system hits full dead-head pressure, the pump instantly unloads flow, reducing energy consumption and preventing heat buildup in the reservoir tank.
• Heavy-Duty Industrial Framework: Utilizes standard SAE C 2-bolt mounting configuration and a robust 254TC frame continuous-duty motor, making this a universal, drop-in core package for standard industrial hydraulic power units (HPUs).

Technical Specifications

• Pump Manufacturer: Nachi-Fujikoshi Corp. (Made in Japan)
• Pump Model Number: VDC-3B-1A3-E20
• Pump Type: High-Pressure Variable Volume Vane Pump
• Pump Displacement: 65 cc/rev
• System Flow Rate: 31.7 GPM (120 L/min) @ 1760/1800 RPM base speed
• Pressure Adjustment Range: 290 to 1,015 PSI (2 to 7 MPa)
• Pump Mounting Pattern: SAE C 2-Bolt Flange
• Port Configurations: 1-1/2" Code 62 Split-Flange Inlet | 1" Code 62 Split-Flange Outlet | 3/8" NPT Case Drain
• Electric Motor Output: 15 Horsepower (HP)
• Motor Full Load Speed: 1760 RPM
• Electrical Configuration: 230 / 460 Volts | 3-Phase | 60 Hz
• Motor Frame Size: 254TC Frame (C-Face Rigid Mount)
• System Duty Cycle: Continuous Duty (1.15 Service Factor)