China Hot selling 3KW High Pressure Single Stage Vacuum Pump 3 Phase For CNC Machines vacuum pump and compressor

Customized support: OEM, ODM
Model Number: 2LG710-7AH26
Power Source: Electric
Pressure: High Pressure
Structure: Single-stage Pump
Usage: Air Pump
Power: Electric
Material: Aluminum alloy
Motor: 100% Copper Wire
Frequency: 50 /60 Hz
Voltage: 220V/380V
Max vacuum: -260/-240 mbar
Certificate: CE Certificate
Outlet dia: 2 inch
Application: CNC Machines
Packaging Details: 1 piece to be packed with a wooden case

Specialized in sales and production of ring blowers since 2001

Die-cast aluminum alloy ADC12, Excellent heat-dissipating;
2-pole electric motor with IP55 and Insulations class F;
Dual usage – suction and blow;
Compact surface, light weight;
100% No-oily odor and maintenance-free;
Long life span and Low noise;
24 hours continuously working;
Environmental protection;
Anti-vibration; Cooler running bearing;
National Patent design — Balanced design of dual bearings
Easy installation;


Model Number2LG710-7AH26
Rated Output3kw3.45kw
VoltageΔ 200-240vY 345-415vΔ 220-275vY 380-480v
CurrentΔ 12.5AY 7.2AΔ 12.5AY 7.3A
Max airflow318m³/h376m³/h
Max vacuum-260mbar-240mbar
Max compressor270mbar230mbar


Detailed Images

Production Flow

Industry Application
Liongoal side channel blowers (regenerative blowers / ring blowers) are dual usages: suck and blow, so they can be used as vacuum pumps or draught fans. There are multiple uses for side channel blowers like: Pneumatic conveying, pond aeration, printing pumps, soil remediation, vacuum hold-down, mixing sediment, card feeder, dryer, eliminator, air shooter, evaporator, feeding machine, Jacuzzi, paper dryer, paper feeding, punch collector, sewing machine, sock loom, vacuum transfer, waste gases, paper scrap, bottling, collector, air bearings, auto loom, circulation, egg processing, hopper, medical suction, paper holder, powder transfer, transfer, tunnel, wastewater.

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Packaging & Shipping
Vacuum pump 3KW package:

  • 1 set vacuum pump
  • Shipping Methods :
  • By Express, such as DHL, UPS, FedEx etc
  • By Air Cargo
  • By sea
  • Payment details:
  • Credit Card
  • T/T
  • E-checking
  • Xihu (West Lake)
  • Pay Later
  • Trade Assurance Order is highly recommended for buyers through the world.

    Company Information
    Established in 2018, ZheJiang SOP Precision Intelligent Manufacturing Technology Co., Ltd. is a manufacturer and trading company specialized in the research, development, production and sales of ring blowers and position sensors. We have committed to the sale area of ring blower since 2001 and created our factory on 2013.

    We can produce most of high pressure air blowers and roots blowers. Besides, we have many reliable cooperated factories for other models, such as centrifugal fans and EMOREHORN ring blowers.

    Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customers stisfaction.



    Finished Products:


    Q1: Can you give us a discount for bulk orders?
    A1: Yes, of course. We can also offer OEM/ODM service.

    Q2: Can you offer ring blower accessories, such as filter, relief valve and muffler?
    A2: Yes, we can offer them. Please contact us freely for more details.

    How to install a vacuum pump

    A vacuum pump creates a relative vacuum within a sealed volume by drawing gas molecules from the sealed volume. Vacuum pumps can be used in a variety of industrial applications. They also offer various lubrication options. If you are considering purchasing, please understand its functions and features before purchasing.
    Vacuum Pump

    How it works

    The working principle of a vacuum pump is called gas transfer. The principle can be further divided into two basic categories: positive displacement and momentum transfer. At high pressure and moderate vacuum, gas molecules collide and move and create a viscous flow. At higher vacuum levels, gas molecules separate to create molecular or transitional flows.
    Another principle of vacuum pumps is fluid-tightness. There are two main types of seals: rotary seals and screw seals. Rotary seals prevent liquid leakage, while screw seals only allow liquids to flow out at higher pressures. Some pumps may not use the third seal.
    The flow rate of the vacuum pump determines the machine’s ability to pump a certain amount of material. A higher pumping speed will shorten the drain time. Therefore, the mass flow of the vacuum pump must be carefully considered. The speed and type of vacuum must also be considered.
    The working principle of a vacuum pump is to push gas molecules from a high-pressure state to a low-pressure state. This creates a partial vacuum. There are many different types of vacuum pumps, each with different functions. Some are mechanical, some are chemical. In either case, their function is the same: to create a partial or complete vacuum. Vacuum pumps use a variety of technologies and are sized according to the application. Proper sizing is critical for optimum efficiency.
    Gas transfer pumps use the same principles as vacuum pumps but use different technology. One of the earliest examples is the Archimedes spiral. Its structure consists of a single screw inside a hollow cylinder. More modern designs use double or triple screws. The rotation of the screw causes gas molecules to be trapped in the cavity between the screw and the housing. The fluid is then discharged at slightly above atmospheric pressure. This difference is called the compression ratio.
    Another type of vacuum pump is a diffusion pump. Its main use is industrial vacuum processing. It is used in applications such as mass spectrometry, nanotechnology and analytical instrumentation. These pumps are generally inexpensive to purchase and operate.


    Vacuum pumps are essential for many scientific and industrial processes. They are used in the production of vacuum tubes, CRTs, lamps and semiconductor processing. They can also be used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle. Likewise, they can be used to power hydraulic components of aircraft. Among other uses, the vacuum pump helps calibrate the gyroscope.
    Vacuum pumps are widely used in the pharmaceutical industry and are one of the largest users of this technology. They help deal with hazardous materials and eliminate waste quickly. They are also used in power jets, dump fuel tanks and rear doors, among others. However, they are sensitive to contamination and should only be used in environments where leaks can be prevented. Therefore, choosing the right fluid for the application is very important.
    The most popular type of vacuum pump is the rotary vane pump. These pumps are known for their high pumping speed and low pressure. Their efficient pumping capacity allows them to reach pressures below 10-6 bar. Additionally, they are usually oil-sealed and have excellent vacuuming capabilities.
    Vacuum pumps are often used to remove air from closed systems. They create a vacuum by reducing the density of the air in the compressed space. This is done by using the mechanical force energy generated by the rotating shaft. When the pump is under pressure, it converts this energy into pneumatic power. When the pressure is different, the energy produced depends on the volume of the gas and the pressure difference between the inner and outer atmospheres.
    Vacuum pumps are also used in the manufacture of solar cells. They are used in the manufacture of solar cells, including ingot casting processes as well as cell and module processes. The design of the vacuum system plays an important role in reducing the cost of the process, thus making it profitable. Due to their low maintenance costs, they are an invaluable tool for making solar cells.
    Vacuum pumps are widely used in many applications. In addition to industrial and research uses, they are also used in water remediation.
    Vacuum Pump

    Oil Lubrication Option

    Vacuum pumps are available in a variety of oil lubrication options. Choosing the right lubricant can help protect your vacuum pump and maximize its performance. Different base oils may contain different additives, such as antioxidants, and some contain additional additives for specific purposes. You should choose an oil with the right concentration of these additives for optimal lubrication of your vacuum pump.
    Vacuum pumps are usually lubricated with paraffinic mineral oil. However, this type of lubricant evaporates as the temperature increases. To minimize evaporative losses, choose a lubricant with low vapor pressure. Also, you should choose lubricants that are resistant to extreme temperatures. Extreme temperatures can put extra stress on the oil and can even significantly shorten the life of the oil.
    In terms of viscosity, synthetic oils are the best choice for vacuum pumps. These types of oils are designed to resist gas dissolution and are more resistant to corrosion. Therefore, synthetic oils are ideal for handling aggressive substances. Whether or not your pump needs lubrication, choosing a quality product is important.
    The vacuum pump oil should be changed periodically according to the manufacturer’s recommendations. If you use a filter, you should also change the oil as soon as the filter reaches the end of its life. Unplanned oil changes will eventually cause the vacuum pump to not reach its maximum vacuum capacity.
    You can buy vacuum pump oil from vacuum pump manufacturers or other suppliers. These options are available in a variety of sizes, and labels can be customized. The oil should be designed for the pump. However, you should check the manufacturer’s recommendations to avoid buying the wrong type.
    If you choose to use a synthetic oil, it is important to use a good quality oil. It helps the pump work more efficiently and prolong its life.
    Vacuum Pump


    After choosing a suitable location, the next step is to install the pump. First, place the pump on a flat surface. Then, screw the pump onto the motor body above the check valve. Make sure the accessories are wrapped with sealing tape and secured with screws. The direction of gas inflow and outflow is indicated by arrows on the pump. The direction of rotation around the pump is also shown.
    During commissioning, check the operation of each part of the pump. If the pump is equipped with a pipe connection, the pipe should be the same size and shape as the pump flange. Also, make sure that the piping does not cause any pressure drop. In addition, the first three weeks of operation require the installation of protective nets at the suction ports.
    When selecting a pump, consider the back pressure of the system. Too much back pressure will affect the capacity of the vacuum pump. Also, check the temperature of the seal. If the temperature is too high, the seal may be damaged. It could also be due to a partially closed valve in the recirculation line or a clogged filter. Circulation pumps and heat exchangers should also be checked for fouling.
    The vacuum pump is usually installed in the chassis area of ​​the car. They can be mounted next to the engine or on a lower support frame. They are usually fastened to the bracket using suitable shock absorbers and isolating elements. However, before installing the vacuum pump, be sure to check the vacuum pump’s wiring harness before connecting it to the vehicle.
    In many experimental setups, a vacuum pump is essential. However, improperly installed vacuum pumps can expose users to harmful vapors and chemicals. Appropriate plugs and belt guards should be installed to prevent any accidental chemical exposure. It is also important to install a fume hood for the pump.
    In most cases, vacuum pumps come with installation manuals and instructions. Some manufacturers even offer start-up assistance if needed.

    China Hot selling 3KW High Pressure Single Stage Vacuum Pump 3 Phase For CNC Machines     vacuum pump and compressor	China Hot selling 3KW High Pressure Single Stage Vacuum Pump 3 Phase For CNC Machines     vacuum pump and compressor
    editor by czh

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