You are here: Home » Blogs » What is screw vacuum pump?

What is screw vacuum pump?

Views: 0     Author: Site Editor     Publish Time: 2024-04-05      Origin: Site


facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

Understanding Screw Vacuum Pumps

A screw vacuum pump is a type of rotary positive displacement pump, which utilizes two intermeshing screws, known as rotors, to compress and move gas from the inlet to the exhaust port. This design allows for continuous operation with minimal pulsation and vibration. Unlike other vacuum pumps that rely on momentum transfer or entrapment, screw vacuum pumps operate under the principle of positive displacement, making them highly effective in creating low-pressure environments.

The core mechanism involves the rotation of helical screws, which traps air between the screw threads and compresses it as it moves along the length of the screws. The tightly sealed chamber formed by the casing and the screw threads ensures efficient gas movement and minimizes leakage. The design of these pumps often incorporates advanced materials and coatings to enhance durability and performance under various operating conditions.

Screw vacuum pumps are distinguished by their robustness and efficiency. They can handle both dry and wet gases and can operate over a wide range of pressures. These characteristics make them suitable for industries where high reliability and performance are necessary.

Applications and Benefits of Screw Vacuum Pumps


Screw vacuum pumps are versatile devices used in a multitude of industries due to their efficiency and robustness. Common applications include:

  1. Chemical and Pharmaceutical Industries: Used for distillation, drying processes, and evacuation of process chambers.

  2. Food Processing: Employed in packaging processes where maintaining product freshness is essential.

  3. Manufacturing: Utilized in CNC machining operations to hold parts securely via vacuum clamping.

  4. Environmental Applications: Helps in wastewater treatment plants by aerating tanks without contamination.

  5. Electronics Manufacturing: Essential in semiconductor production for maintaining ultra-clean environments required for wafer fabrication.


The benefits of using screw vacuum pumps are manifold:

  • Efficiency: These pumps provide high volumetric efficiency due to their design, which reduces energy consumption compared to other types of vacuum pumps.

  • Low Maintenance Needs: With fewer moving parts than traditional piston or vane pumps, screw vacuum pumps require less maintenance over their operational life.

  • Durability: Built to withstand harsh environments, they offer long service lives even under demanding conditions.

  • Quiet Operation: Their operation produces less noise compared to other mechanical vacuum pumps, making them suitable for noise-sensitive environments like laboratories or hospitals.

  • Versatility: Capable of handling both dry and wet substances makes them adaptable across various industrial applications.

In conclusion, screw vacuum pumps represent a critical advancement in pumping technology with broad applications across many sectors due to their unique combination of efficiency, durability, low maintenance requirements, quiet operation, and versatility. Whether it's being utilized in food packaging or semiconductor manufacturing, these pumps offer reliable solutions that enhance productivity while reducing operational costs—making them an invaluable tool in any industrial setting where precise atmospheric control is required.

Shandong Kaien Vacuum Technology Co., Ltd.

Quick Links

Product Category

Leave a Message
Contact Us

Contact Us

     Phone : +86-130-0288-6558
    E-mail :
    Telephone:+86-0531-8750-3139
    Company headquarters2603-B, Building B1C, Qilu Gate, Greenland, Huaiyin District, Jinan City, Shandong Province
    Company production plant : No. 11111, Second Ring South Road, Jinan City, Shandong Province
Copyright © 2023 Shandong Kaien Vacuum Technology Co., Ltd. All rights reserved. Privacy Policy | Sitemap | Support By Leadong