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VDC-1A-1A2,VDC-1B-1A2 Vane pump
VDC Series:VDC-1A/B; VDC-2A/B; VDC-3A/B
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Description
Nachi VDC-1A-1A2 & VDC-1B-1A2 Vane Pump Specifications
Nachi VDC-1A-1A2 and VDC-1B-1A2 are high-pressure variable displacement vane pumps designed by Nachi Fujikoshi, widely used in industrial hydraulic systems, machinery equipment, and automated production lines. This document provides detailed technical parameters, performance features, and application notes of the two models to help users select and use the pumps correctly. As professional Nachi vane pump models, VDC-1A-1A2 and VDC-1B-1A2 are favored for their high efficiency, stability, and low noise.
General Specifications (VDC-1A-1A2 & VDC-1B-1A2)
|
Parameter Name
|
VDC-1A-1A2
|
VDC-1B-1A2
|
Unit
|
|---|---|---|---|
|
Displacement
|
16.7
|
16.7
|
cm³/rev
|
|
No-Load Discharge Rate (1000 min⁻¹)
|
16.7
|
16.7
|
ℓ/min
|
|
No-Load Discharge Rate (1200 min⁻¹)
|
20
|
20
|
ℓ/min
|
|
No-Load Discharge Rate (1500 min⁻¹)
|
25
|
25
|
ℓ/min
|
|
No-Load Discharge Rate (1800 min⁻¹)
|
30
|
30
|
ℓ/min
|
|
Pressure Adjustment Range
|
7 – 14 (71.4 – 143 kgf/cm²)
|
7 – 14 (71.4 – 143 kgf/cm²)
|
MPa
|
|
Allowable Peak Pressure
|
14 (143 kgf/cm²)
|
14 (143 kgf/cm²)
|
MPa
|
|
Minimum Revolution Speed
|
800
|
800
|
min⁻¹ (rpm)
|
|
Maximum Revolution Speed
|
1800
|
1800
|
min⁻¹ (rpm)
|
|
Weight
|
9.5
|
9.5
|
kg
|
|
Mounting Type
|
Flange Mounting (Optional Foot Mounting)
|
Flange Mounting (Optional Foot Mounting)
|
–
|
|
Operating Fluid
|
ISO VG 32 – 68 (Viscosity Index ≥ 90)
|
ISO VG 32 – 68 (Viscosity Index ≥ 90)
|
–
|
|
Rotation Direction
|
Clockwise (Viewed from Shaft Side)
|
Clockwise (Viewed from Shaft Side)
|
–
|
Key Performance Features
-
High-Efficiency & Stable High-Pressure Operation: Equipped with innovative pressure control, pressure balance mechanisms, and an original 3-point ring support system, ensuring excellent performance at high pressures up to 14 MPa.
-
Low Vibration & Noise: Adopts advanced mechanisms, including 3-point support for control piston and bias piston, minimizing ring vibration and achieving quiet operation适合 industrial environments requiring low noise levels.
-
Precise & Stable Discharge Rate: A revolutionary pressure compensator-type pressure control mechanism maintains a highly stable fixed discharge rate even in the high-pressure range.
-
High Efficiency with Minimal Power Loss: New mechanical innovations reduce power loss, especially during full cutoff, improving energy efficiency and reducing operating costs.
-
Easy Maintenance & Handling: Pressure adjusting and discharge rate adjusting mechanisms are located on the same side of the pump, simplifying maintenance and daily operation.
-
Outstanding Response: An innovative ring stopper eliminates excessive ring displacement, ensuring high-precision operation during starts, stops, and load changes.
Application Scope
Nachi VDC-1A-1A2 and VDC-1B-1A2 vane pumps are widely applied in various industrial fields, including hydraulic systems of machine tools, plastic injection molding machines, forging equipment, construction machinery, and automated production lines. Their high stability and reliability make them ideal for high-pressure hydraulic systems requiring precise control and long-term continuous operation.
Notes
-
The operating fluid must meet ISO VG 32-68 standards with a viscosity index of 90 or higher to ensure pump performance and service life.
-
Do not exceed the maximum revolution speed (1800 rpm) or allowable peak pressure (14 MPa) to avoid damage to the pump.
-
Regular maintenance is recommended to check the pump’s pressure, discharge rate, and fluid quality, ensuring stable operation.
-
When starting the motor under specific conditions
VDC series Nachi vane pump
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