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NACHI Variable Displacement Vane Pump VDR-1B-2A2-13 for Hydraulic Performance

Product Details

Place of Origin: Japan

Brand Name: Nachi

Certification: CE UL cURus E360421

Model Number: VDR-1B-2A2-13

Payment & Shipping Terms

Minimum Order Quantity: 1 piece

Price: USD 300-500 piece

Packaging Details: Carton packaging

Delivery Time: 3-7 working days

Payment Terms: D/A, D/P, T/T, Western Union

Supply Ability: 10 piece 5 days

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Specifications
Highlight:
Condition:
New
Type:
Vane Pump
Shipping Terms:
DHL, FedEx, UPS‌, TNT
Warranty:
1 Year
Condition:
New
Type:
Vane Pump
Shipping Terms:
DHL, FedEx, UPS‌, TNT
Warranty:
1 Year
Description
NACHI Variable Displacement Vane Pump VDR-1B-2A2-13 for Hydraulic Performance

NACHI Vane Pump VDR-1B-2A2-13 — Precision Hydraulic Performance for Demanding Applications

The NACHI VDR-1B-2A2-13 is an advanced variable displacement vane pump engineered for reliability, energy efficiency, and precise hydraulic control. As part of NACHI’s VDR series, this model incorporates pressure-compensated technology to automatically regulate fluid flow according to system demand, ensuring consistent performance with minimal energy loss. Designed for use in high-precision industrial applications such as machine tools, metal presses, injection molding, and automated machinery, the VDR-1B-2A2-13 delivers quiet, stable, and long-lasting operation under continuous load conditions.

With its combination of superior mechanical design, advanced control features, and compact construction, this pump exemplifies NACHI’s reputation for durable and efficient hydraulic solutions.


1. Product Overview

The VDR-1B-2A2-13 is built around NACHI’s proven pressure-compensated variable displacement principle. When the hydraulic system reaches the set pressure, the pump automatically reduces displacement, maintaining a stable flow and preventing unnecessary energy consumption. This not only ensures smoother system operation but also minimizes heat generation and extends the lifespan of both the pump and hydraulic fluid.

Its precise flow regulation, low noise, and high efficiency make it ideal for continuous operation in demanding production environments where reliability and precision are essential.


2. Technical Specifications

Parameter Specification
Model VDR-1B-2A2-13
Pump Type Variable displacement vane pump
Series NACHI VDR Series
Control Type Pressure-compensated automatic control
Mounting Type Flange mount
Rotation Direction Clockwise (viewed from shaft end)
Displacement Range 10–25 cm³/rev
Rated Pressure 12 MPa (1740 psi)
Maximum Pressure 14 MPa (2030 psi)
Flow Rate (at 1800 rpm) Approx. 22–26 L/min
Speed Range 600–1800 rpm
Hydraulic Fluid Mineral oil-based (ISO VG32–68)
Viscosity Range 20–400 mm²/s (cSt)
Operating Temperature 0 °C – +60 °C
Noise Level ≤ 60 dB(A)
Shaft Type Straight keyed shaft
Seal Material NBR (standard) / Viton (optional)
Pump Weight Approx. 10.2 kg

3. Construction and Material Design

The VDR-1B-2A2-13 is designed with high-quality materials and precision-engineered components to provide long-lasting performance. Each part is manufactured to tight tolerances to ensure smooth fluid dynamics, reduced vibration, and minimal mechanical wear.

Component Material / Feature Function / Advantage
Pump Housing High-strength aluminum alloy Provides rigidity and lightweight durability
Cam Ring Hardened tool steel Ensures consistent vane operation and wear resistance
Rotor & Vanes Precision-ground steel Delivers high volumetric efficiency and smooth flow
Shaft Carbon steel, heat-treated Offers high strength and torque transmission
Bearings Dual radial ball bearings Minimize vibration and improve operational life
Pressure Compensator Integrated control mechanism Maintains constant system pressure automatically
Seals NBR or Viton Prevent leakage and resist high temperatures
Surface Finish Fine-machined internal surfaces Reduces friction and noise for efficient flow performance

The combination of a robust mechanical framework and precision engineering ensures that this pump delivers smooth, quiet, and consistent operation.


4. Performance Characteristics

Performance Parameter Value / Description
Flow Output (at 1800 rpm) 22–26 L/min
Pressure Regulation Accuracy ±1%
Volumetric Efficiency 92–94%
Mechanical Efficiency 88–91%
Response Time < 100 milliseconds
Noise Level ≤ 60 dB(A)
Temperature Rise (Continuous Operation) < 15 °C above ambient
Expected Service Life 20,000+ operating hours

The pump’s high precision and rapid response capability make it ideal for systems that require smooth, accurate hydraulic control.


5. Key Advantages

  1. Energy Efficiency:
    Automatic adjustment of displacement reduces energy consumption when system demand is low, lowering overall operating costs.

  2. Stable Pressure and Flow Control:
    The built-in compensator ensures steady performance, even with fluctuating loads or speeds.

  3. Low Noise Operation:
    Balanced rotor design and optimized vane geometry minimize vibration and acoustic emissions.

  4. Compact and Lightweight:
    The aluminum housing offers excellent strength while keeping overall weight low for easy installation.

  5. Extended Durability:
    High-quality materials and advanced heat treatment techniques ensure a long service life with minimal maintenance.

  6. Minimal Heat Generation:
    Efficient internal flow paths minimize energy loss and keep the hydraulic fluid temperature stable.

  7. Ease of Maintenance:
    Modular construction simplifies inspection and component replacement.


6. Application Areas

The VDR-1B-2A2-13 is designed to meet the demands of industries where performance, efficiency, and reliability are essential.

Industry Application
Machine Tools Hydraulic feed control, spindle lubrication, and clamping systems
Plastic Injection Molding Pressure regulation for injection and clamping units
Press Machinery Metal forming, bending, and stamping
Automation Equipment Robotic actuators, conveyors, and precision hydraulic drives
Textile and Paper Production Web tension control and roller systems
Testing and Calibration Equipment Pressure and flow test benches
Hydraulic Power Units Compact power generation for multi-axis machinery

Its reliability and high-efficiency design make it suitable for both stationary systems and dynamic industrial applications.


7. Installation and Maintenance Guidelines

Parameter Recommendation
Mounting Orientation Horizontal preferred for optimal lubrication
Hydraulic Fluid Type Use clean mineral-based oil (ISO VG32–68)
Filtration Requirement ≤ 10 µm absolute filter
Temperature Range Maintain fluid temperature between 30 °C – 50 °C
Startup Procedure Prime pump with fluid before first use
Pressure Adjustment Adjust compensator gradually; avoid exceeding 14 MPa
Suction Line Design Keep line short and direct to reduce pressure loss
Maintenance Interval Inspect seals and vanes every 4000–6000 hours

Following these guidelines ensures stable operation and long service life.


8. Maintenance and Spare Parts

NACHI provides original maintenance kits for the VDR-1B-2A2-13, ensuring reliable repair and simplified servicing.

Component Replacement Part Code
Vane Cartridge Kit VDR1B-2A2-13-CART
Seal Kit (NBR) VDR1B-SK-NBR
Seal Kit (Viton) VDR1B-SK-VIT
Bearing Set VDR1B-BS
Pressure Compensator Assembly VDR1B-PC-A2
Complete Overhaul Kit VDR1B-2A2-13-SET

Using genuine NACHI replacement parts maintains hydraulic efficiency and prevents premature wear.


9. Comparison with Conventional Pumps

Feature VDR-1B-2A2-13 (Variable) Fixed Displacement Pump
Energy Efficiency Adjusts output automatically Constant flow regardless of demand
Pressure Control Built-in compensator Requires external valve system
Noise Level ≤ 60 dB(A) 70–75 dB(A) typical
Heat Generation Low High due to continuous flow
Maintenance Simple modular design Complex and time-consuming
Service Life Long, optimized for dynamic load Shorter under variable demand

This comparison highlights the superior efficiency and performance of the VDR-1B-2A2-13 over traditional fixed-displacement hydraulic pumps.


10. Conclusion

The NACHI VDR-1B-2A2-13 is a high-performance variable displacement vane pump that embodies precision, efficiency, and reliability. Its pressure-compensated control, low noise operation, and compact design make it ideal for advanced industrial hydraulic systems.

Key Highlights:

  • Intelligent automatic displacement adjustment

  • High efficiency with reduced energy consumption

  • Low noise and smooth operation

  • Long service life and minimal maintenance

  • Compact and durable construction

Whether used in a machine tool, press system, or automated assembly line, the VDR-1B-2A2-13 provides the perfect balance of power, control, and durability, making it a cornerstone of NACHI’s reputation for quality hydraulic engineering.

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