Double Variable Vane Pump
1. Product Overview
Double Variable Vane Pump is an integrated twin variable displacement vane pump assembly. Two independent variable vane pump modules are housed within a single pump body and driven synchronously by one input shaft. Each pump unit is equipped with an independent pressure adjustment mechanism. Two separate hydraulic circuits can obtain different flow and pressure outputs simultaneously. Compared with installing two separate single pumps, this design saves installation space, reduces motor configuration quantity and lowers overall equipment costs. Widely used in industrial machinery requiring dual independent hydraulic power circuits.
The Double Variable Vane Pump belongs to high-performance Hydraulic Vane pump, a vital type of hydraulic pump for complex hydraulic system. This twin combined hydraulic pump integrates two variable vane pump bodies inside one housing. Each pump unit can independently adjust displacement, supplying separated pressure and flow for different executing components in one hydraulic system. As an efficient Hydraulic Vane pump, it optimizes power configuration and simplifies the layout of complete equipment.
2. Main Technical Specifications
Parameter Specification
Pump Type Double Variable Displacement Vane Pump
Nominal Working Pressure 0.7 ~ 7.0 MPa (Low-pressure version)
Displacement Combination Custom matching of different displacements for front pump & rear pump
Rotation Direction Clockwise / Counter-clockwise optional
Permitted Speed Range 800 ~ 1800 rpm
Recommended Hydraulic Fluid ISO VG32 / VG46 anti-wear hydraulic oil
Operating Temperature -10℃ ~ +70℃
Installation Type Foot mounting / Flange mounting
3. Core Advantages
1. Dual independent pump units, separate pressure and flow adjustment for each circuit, supporting compound movements of machine tools and automation equipment.
2. Single-shaft synchronous drive, only one driving motor required, optimizing system layout and cutting investment costs.
3. Compact integrated casting structure, effectively reduce occupied space inside hydraulic power units.
4. Low vibration, low noise and slight pressure pulsation, guarantee smooth equipment operation.
5. Each pump is fitted with built-in pressure regulating valve, convenient independent pressure setting during on-site commissioning.
6. Wide displacement combination options, flexible to match diverse working conditions.
7. Easy maintenance and interchangeable spare parts, low after-sales maintenance expense.
4. Working Principle
The input shaft drives two groups of rotors and vanes to rotate synchronously. By adjusting the eccentricity of each stator and rotor respectively, each pump can independently change displacement. Two separated oil outlet ports supply pressure oil to two different hydraulic loops. It realizes asynchronous actions such as rapid feed, clamping, ejection at the same time.
5. Application Scope
Suitable for machine tools, packaging machinery, plastic auxiliary equipment, automated production equipment, light-duty hydraulic presses, logistics conveying machinery. Ideal equipment with simultaneous fast advancing and clamping hydraulic loops.
