Your Professional Dry Screw Pumps Manufacturer!
InPowerVac since 2000,currently mainly produces and sells rotary vane vacuum pumps, dry screw vacuum pumps, Roots vacuum pumps, and vacuum units. At present, the company has 92 sets of processing equipment, including 30 sets of imported processing equipment. It has complete inspection and monitoring equipment, material tensile physics laboratory, vacuum testing room, dynamic balance laboratory, three coordinate and other high-end equipment.
One-Stop Solution
InPowerVac has been committed to the research, development, production, sales of vacuum equipment, providing highly reliable vacuum products and solutions in fields such as lithium batteries, semiconductors, power, new materials.
Rich Experience
We are constantly developing and optimizing our company's products, and we always insist on creating value for our customers, especially in some special fields.


Factory
InPowerVac currently has two production bases in Zhejiang and Hebei. In 2023, we will purchase another production plant in Taizhou, Zhejiang, covering an area of squa70000 re meters.
Professional Team
InPowerVac now has a number of mature production lines and continuous technological innovation capabilities, and is determined to become a leader in vacuum technology in China and even in the world.
What are Dry Screw Pumps?
A dry screw vacuum pump is a positive displacement pump that operates without oil. Two screw rotors rotate in opposite directions inside a cylindrical housing. The pumped medium enters via the inlet and is trapped and transported in chambers formed between the cylinder and the twin screws.
Advantages of Dry Screw Pumps
High vacuum
Dry screw pumps can provide high vacuum extraction effects and are suitable for processes and experiments with high vacuum requirements.
No oil pollution
Since no lubricating oil or liquid medium is required, dry screw pumps eliminate the possibility of oil pollution and meet environmental protection requirements.
Strong stability
The screw structure design makes the dry screw pump run smoothly, with low noise, easy maintenance and a long service life.
Energy saving and high efficiency
Dry screw pumps use advanced design and materials, with energy-saving and high efficiency characteristics, which can reduce energy consumption and operating costs.
Easy maintenance
Since there is no need to maintain the oil, the maintenance difficulty of dry screw pumps is lower than that of oil-sealed pumps, and there is no need to strictly control the quality and quantity of the oil.
Silent effect
Compared with traditional liquid ring vacuum pumps, dry screw pumps are quieter. This is because the structure of dry screw pumps is relatively simple, there is no sound of liquid flow, and its operation is relatively stable.
Working Principle of Dry Screw Pumps
Similar to screw compressors, the working process of screw dry vacuum pumps can be divided into three processes: suction, compression and exhaust. As the rotor rotates, each pair of meshing teeth completes the same working cycle one after another. Now let's take one pair of teeth as an example.

1
Suction process
The male rotor rotates counterclockwise, and the female screw rotates clockwise. The upper rotor end face is the suction section, and the lower end face is the exhaust end face.
2
Compression process
The rotor end face is the exhaust end face. Here, the male rotor rotates clockwise, and the female rotor rotates counterclockwise. The upper rotor end face is the suction section, and the lower end face is the exhaust end face.
3
Exhaust process
In the exhaust process of the screw pump, the exhaust process begins after the inter-tooth volume is connected to the exhaust orifice. As the inter-tooth volume continues to shrink, the gas with exhaust pressure is gradually discharged through the exhaust orifice.
Application of Dry Screw Pumps
Our screw vacuum pumps are the ideal solution for many industrial applications. Their direct drive, oil free compression chamber makes for a robust, long lasting dry rotary screw pump.
Extracting
Vacuum pumps and blowers are used for a wide range of applications that require the removal of fluids, waste, air, as well as various other materials.
01
Degassing
Vacuum pumps are the preferred solution for removing gases, air, moisture, and vapor from processed materials like plastics, ceramic, and pasta to improve the finished product quality.
02
Evacuation
From food processing and packaging, to thermoforming and manufacturing, the removal of air or gas from a given space is one of the most wide ranging applications of vacuum pumps and systems.
03
Pneumatic Conveying
Low pressure and vacuum solutions are perfect for transferring powders, granules, flakes, and other small, dry, low bulk density products.
04
Vacuum Fixing
Vacuum pumps and vacuum systems from InPowerVac are the ideal solution for holding goods and components in place during production, processing, and packaging.
05
Market Uses of Dry Screw Pumps
CNC Routing - Woodworking Industry
Vacuum pumps from InPowerVac, provide the strong vacuum hold down that is imperative for keeping parts in place and reducing scrap.
Electronics Industry
Vacuum pumps from InPowerVac are perfectly suited for the absolute precision, low pulsation and vibration, and integrability challenges associated with the manufacturing, processing and testing of all types of electronic components.
General Mechanical Engineering
InPowerVac provides customized vacuum pump and compressor solutions for numerous mechanical engineering applications across the world, such as conveying, transporting, fixing, lifting, handling, drying, cooling and many more.
Medical Industry
Our highly reliable vacuum pumps are found in many central medical/surgical vacuum systems and medical devices.
Plastics Industry
From the production of new plastic components to the resource-friendly recycling of PET – vacuum pumps/systems and compressors from Becker are involved in the process.
Secondary Packaging Industry
Tray formers, carton and case erectors, baggers, cappers and fillers, inserters and palletizers represent just some of the numerous machines where you can find Becker Pumps.
Maintenance and care methods of dry screw pumps
Dry screw vacuum pumps are key equipment in vacuum technology. Their stable operation and long life benefit from meticulous maintenance and care measures.
1. Daily inspection matters:
1. Check the sealing condition: Regularly check the sealing condition of each part of the dry screw vacuum pump to ensure reasonable screw clearance and prevent gas leakage and increased energy consumption.
2. Keep the environment clean: Ensure that the area around the dry screw vacuum pump is clean and dry, and prevent dust, moisture and other pollutants from invading to ensure unimpeded operation.
3. Lubrication maintenance: Although the dry screw vacuum pump achieves oil-free operation, key components such as bearings and gears still need to be lubricated regularly to ensure smooth operation.
2. Detailed explanation of maintenance measures:
1. Replacement of wear-resistant parts: According to the usage, regularly replace the wear-resistant parts such as the screw and spindle of the dry screw vacuum pump to maintain its efficient and stable working condition.
2. Clean the pipes and filters: Clean the air intake pipes and filters of the dry screw vacuum pump regularly to avoid dust and impurities accumulation and improve the suction efficiency.
3. Check the motor and electrical system: Check the motor and electrical system of the dry screw vacuum pump regularly to ensure its stable operation and reduce the impact of electrical failures on the equipment.
As one of the leading dry screw pumps manufacturers and suppliers in China, we warmly welcome you to wholesale dry screw pumps in stock here from our factory. All customized products are with high quality and competitive price. For quotation, contact us now.
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