VDR-1A-2A2-22 VDR-1A-2A3-22 Variable Vane Pump
VDR-1A-2A2-22， It is a high-performance, medium high pressure variable vane pump produced by NACHI (Fujitsu) in Japan. It is often used in hydraulic systems that require energy saving, low noise, and precise pressure control, such as machine tools, injection molding machines, etc.
Specific parameters/descriptions of parameter items
Product Name/Series High Pressure Variable Blade Pump/NACHI VDR-22 Series
Model VDR-1A-2A2-22
Brand Japan NACHI (Fujitsu)
Type variable vane pump
Installation method A: Foot mount installation type
Oil ring size/flow rate 2: displacement of approximately 40 L/min without load (at 1800 min ⁻¹)
Pressure adjustment range 2: 1.5 to 3.5 MPa
The maximum operating pressure can instantly reach 14 MPa
Speed range 800 to 1800 min ⁻¹
Design Series 22
Core features and advantages
The reason why this pump is widely used is mainly due to the following design highlights:
Efficient and energy-saving: It integrates a high-precision pressure compensation structure internally, which can automatically adjust the output flow according to the system pressure. During standby or pressure maintenance, it can almost achieve no-load operation, significantly reducing energy loss and oil heating.
Low noise operation: Optimized suction port shape and three-point support method are adopted to effectively suppress vibration during high-pressure operation, thereby controlling the operating noise at a very low level.
Fast response: Thanks to its pilot pressure control and oil ring stop mechanism, it can quickly respond at the moment of system loading or unloading, achieving stable and high-precision actions
Compact structure: It integrates functions such as pressure regulation and flow control into one, and has a smaller volume compared to hydraulic pumps of the same power, which helps to reduce the overall size of the hydraulic station.
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