VQ Series vane pumps with high performance and high pressure which 
designed for constraction machinery especially for mobile machinery. Features: 
1.Designed by intra-vane structure, reduce the vane pressure to rotor, makes stable performance 
and longer life in high speed and pressure. 
2.To adopt folating structure for side plate,will do a compensation for end-face clearance by 
automatic,makes high speed and high pressure which can up to 21 MPa. 
3.The plate is made of dual-metal material, improved the seizure resistance. Complete displacement, 
composite structure and high pricise spare parts allows convenient maintenance. 

45VQ Series Hydraulics Vane Pump 



Installation and Use:
1. In installation, the tolerance of concentricity between shaft of pump and motor must be less than 
0.10mm(TIR) and the maximum permissible angle error is less than 0.2 degrees by using the 
flexible coupling; The pump shaft shall not bear the radial and axial load; The carrier must be firm 
with good rigidity and can fully absorb vibrations. 
2. Set the suction pressure at pump inlet port : Recommended inlet pressure is 0 to 35Kpa. 
3. Oil should be kept clean, pipes and tanks must be thoroughly cleaned; The cleanness level of oil 
should be within NSA12. 
4. Nomal pump operation(at rated conditions)is based on the use of SAE10W oil in the 38ºC to 82ºC 
range (or comparable viscosities) 
5. Check the inlet, outlet and direction of rotation before starting the pump. Turn the shaft of pump 
evenly and nimbly by hand after fixing the pump. At the time of first-starting ,if the pump does not 
immediately prime , air should be bled from the pump delivery line . 
6. When first put into use, the pump body and oil suction pipeline should be filled with oil, and the 
pump shall not be allowed to operate without oil. 
7. Do not start the pump when the outlet pressure is lower than the inlet pressure. This will cause work 
noise and blade instability. 
8. Cold start condition:When operating SAE10W oil in the 860 to 40 cSt range, the speed and 
pressure should be limited to 50% or less of their respective rated values until the system has 
warmed up. Extreme caution must be used when starting units when fluid viscosity are greater than 
860 cSt, Care should be exercised to warm up the entire system, including remote cylinders and 
motors. 
9. At high temperature, viscosities must not be less than 13cSt, Temperatures should not exceed 99ºC 
because the expectancy of cartridge kite and ela
stomers will decrease

Production Overview


Packaging & Shipping
Plastic packing for each pump, Inner box for each pump, Outer box packing then put on the pallet



FAQ 
1.Q: Is your company a trading company or a manufacturer? 
A: Our company is a trading company also a manufacturer, we have our own factory for production.
 
2.Q:What about the quality control and warranty ?
A: "Quality first, Customers foremost".Every piece of products is cheeked and tested strictly one by one before packing and shipping.
Our products have one year warranty, technical support is endless from us.
 
3.Q:Can you provide samples for checking and testing?
A:yes,we provide free samples for checking the build quality and real performance of our products,the freight need to be coverd by customer.
 
4.Q:How can I get to your company?
A: Our company address is No.888 Huaxu Road,Qingpu district,Shanghai,China
It is about 30 minutes by car from Shanghai Hongqiao airport or Shanghai Hongqiao Railway station.