Chinese N70 Made Oilless Closed Circulating Hydraulic Vacuum Pump

Fast Specifics
Place of Origin:Zhejiang, China                          Model Name:LZ
Model Variety:N-70                                      Composition:Solitary-phase Pump                    Software:Vacuum                                           Usage:Air Pump
Power:Electric                                                    Fuel:Vacuum  Oil
Strain:Low Pressure                                      Concept:Vacuum Pump
Supreme Vacuum:500Pa                            Oil filling amount:1L
Pumping speed:70m^3/h           





one.The pump should be placed on the flat position horizontally. The pump has screw holes used for fixing the pump at the bottom cushion block.


2.Please check the oil level before starting the pump. Fill oil to the oil window 3/4 position.


three.Electrical wiring should be carried out by a professional electrician, Vacuum pump standard 380v50hz three phase motor, please look at the motor nameplate.After completion of three phase asynchronous motor wiring must rotate to check the motor,running in the direction shown by the arrow .


four.Inlet pipe cross section size should not be less than the suction mouth size and link length as short as possible.Otherwise it will affect the efficiency.


5.If the pumped gas have impurities,steam or foreign matter,you need to install a vacuum filter on pump air inlet. You also can join an exhaust pipe if necessary, the exhaust pipe need to slope down. 


6.The oil level must be check after startup,please insure the oil level in the oil window 3/4 place. When the pump is operating at high temperature, do not touch!


one. Many rotary vane design, high efficiency and energy saving


2. Air inlet non-return valve design, can prevent oil


3. The built-in oil mist filter, exhaust clean and no pollution


4. Motor and pump direct drive, small vibration, low noise

Factory configuration oil – CV – AH200 high vacuum oil, must use the ISO VG 100 viscosity grade of vacuum pump oil, vacuum pump operation must ensure that the oil level in the oil window height of 1/2 three/four, regularly check the oil level and oil pollution, oil change.



Standard export wooden cases packing


Sea transport /Air transport ( DHL ,TNT , Fedex… )

Delivery time: 

15 working days

Why choose us? 

Our Service:


24-hours standby, Vital listening your each and every recommendation or desire and feedback ASAP.

Firm Details

Wenling Shiqiao Vacuum Equipment Manufacturing facility was established in 2001, specialised in creating TRD collection immediate vacuumpump, XD sequence one-stage vacuum pump, 2X series belt kind vacuum pump, and so forth. 

More than the a long time, our firm has been committed to producing large functionality items. We are worried with the style,development and manufacturing of vacuum pump. Our merchandise are commonly employed in chemical sector, medicine,gear leakage, vacuum packaging, vacuum warmth therapy, vacuum coating and so on.We win high admiration and are extensively trusted at home and overseas. 

Customers’ pleasure is our pursuance. We often uphold professional, efficiency, good high quality and good faith to provide high top quality items and providers for consumers. Our organization goal is: “Good quality First, the user is supreme.”We will meet every single obstacle with our very own wisdom and attempts. 

Excellent high quality, ideal support is a bridge between us. We sincerely hope to advance hand in hand with each other with fellow merchants.


a.When can i get the quotation?

We generally quote in 24 hrs soon after we get your inquiry.


b.How can i get a sample to check your high quality?

Following value confirmation,you can call for for samples to check out our good quality. If you require the samples, we will cost for the sample price .But the sample expense can be refundable if your order is massive sufficient.


c.How extended can I assume to get the sample? 
three-five operating days for planning samples.


d.What about the lead time for mass manufacturing? 

twenty-25 working times for mass production.It relies upon on your quantity,and we will try our ideal to meet your needs.


e.What is your terms of payment?




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