Oilless Vacuum Pumps

A reliable source for Vacuum Pump information and leading Vacuum Pump Companies & Manufacturers.

Oilless pumps are used in contexts in which accidental exposure to oil could damage products or endanger people. Medical vacuum pumps are often oilless to minimize patient and instrument exposure to oil. In the fabrication of hi-tech electronics, oilless pumps may also be necessary to avoid contaminating sensitive instruments with small amounts of oil. Read More…

Oilless Vacuum Pumps Oilless vacuum pumps are devices that create vacuums in enclosed spaces without the use of oil for lubrication, as a sealant or for any other purpose. Many varieties of oilless pumps are dry vacuum pumps, but some are not. Liquid ring pumps, for example, may make no use of oil, but they are not completely dry systems.

Leading Manufacturers

Boise  |  208-362-4721

Pneumotech Inc. Is the Nations Foremost Manufacturer of Compressed Air & Vacuum Systems. We offer innovative cost-effective solutions to your compressed air and vacuum system requirements. As a further service benefit to you; "the Customer" we also offer automated lubrication systems, design, repair, installation, parts, components, systems and lubricant sales.

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Pneumotech Inc. $$$

Rutherford  |  888-222-9940

Airtech is a leading manufacturer/supplier of various types of quality dry piston vacuum pressure pumps, rotary vane pumps (lubricated, dry), liquid ring vacuum pumps. We possess vast knowledge as a vacuum specialist. Serving medical, dental, food packaging and other industries. US warehousing.

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Airtech, Inc. $$$

Milwaukee  |  217-222-5400

Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.

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Gardner Denver, Inc $$$

Gardena  |  310-667-4375

McKenna Engineering has over four decades years of experience developing vacuum pump solutions for every industry under the sun, around the world. Markets served include chemical, aerospace, high tech, and many more. We are an ISO 9001:2015 certified company. When you choose McKenna, you choose top-notch services and products that are delivered on time. Contact us today to get started with us!

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McKenna Engineering $$$

Bay Minette  |  251-937-5900

Quincy Compressor is your number one source for high-quality, reliable vacuum pumps. We have nearly 100 years of experience providing vacuum pumps to businesses across various industries across the USA and the world. We have various models to choose from, ensuring you’ll be able to find the one that suits your application’s demands. For uncompromising reliability and unbeatable performance, choose Quincy.

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Quincy Compressor, Inc. $$$

Milwaukee, WI  |  217-222-5400

Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.

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Gardner Denver, Inc. $$$

Gardena, CA  |  310-7634-7929

McKenna Engineering has over four decades years of experience developing vacuum pump solutions for every industry under the sun, around the world. Markets served include chemical, aerospace, high tech, and many more. We are an ISO 9001:2015 certified company. When you choose McKenna, you choose top-notch services and products that are delivered on time. Contact us today to get started with us!

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McKenna Engineering $$$

Bay Minette, AL  |  251-937-5900

Quincy Compressor is your number one source for high-quality, reliable vacuum pumps. We have nearly 100 years of experience providing vacuum pumps to businesses across various industries across the USA and the world. We have various models to choose from, ensuring you’ll be able to find the one that suits your application’s demands. For uncompromising reliability and unbeatable performance, choose Quincy.

Request A Quote

Quincy Compressor, Inc. $$$

Rutherford, NJ  |  888-222-9940

Airtech is a leading manufacturer/supplier of various types of quality dry piston vacuum pressure pumps, rotary vane pumps (lubricated, dry), liquid ring vacuum pumps. We possess vast knowledge as a vacuum specialist. Serving medical, dental, food packaging and other industries. US warehousing.

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Airtech®, Inc. $$$
placeholder image Pneumotech Inc. Airtech, Inc. Gardner Denver, Inc McKenna Engineering Quincy Compressor, Inc. Gardner Denver, Inc. McKenna Engineering Quincy Compressor, Inc. Airtech®, Inc.

In industrial contexts, vacuum pumps are used for dry etching, solvent recovery, material handling, distilling, petrochemical processing, food manufacturing, finishing and many other processes. Oil-less dry pumps are generally less expensive than wet pumps because of lower initial investment and ongoing maintenance costs.

The cost of a dry vacuum pump failure can also be less than that of a wet pump failure, because oil or other liquid contamination of a vacuum enclosure can often be very damaging. However, oil allows for tighter seals between parts, which increases evacuation capacity. Because a dry vacuum pump cannot be sealed as well as an oil-sealed pump, their vacuum generation capacity is lower.

Dry vacuum pumps were developed in response to concerns about the threat that vacuum pump oil posed to people and the environment; historically vacuum pump oils have contained polychlorinated biphenyls, which have since been discovered to be toxic and carcinogenic.

Dry vacuum pumps avoid this problem and address concerns about pump reliability and maintenance. Dry pumps eliminate the need for contaminant disposal, which can be expensive. Because they do not require oil or fluid checks, maintenance costs are low.

Oilless vacuums vary in design but are often made of heavy-duty stainless steel because of the material's strength and resistance to contamination. Depending on the work environment and requirements, dry pumps can be equipped with vibration isolators and silencers. Some designs feature a cooling water jacket to counteract the high internal temperatures that result from the lack of an oil sealant.

Every oilless vacuum pump is a positive displacement pump, and each pump fits into one of three subcategories: rotary lobe, helical screw and claw. Each design uses two gear-synchronized rotors to trap and compress entering gases.

Rotary lobe vacuum pumps are similar to rotary vane pumps; two rolling rotors separate the chamber, compressing the gas and conveying it out. Helical screw pumps use two screw-like rotors whose threads fit together; gas becomes trapped between the flights of the screws, moved axially and is then discharged. Claw dry vacuum pumps use two claw-shaped rotors to compress the gas.

Oilless Vacuum Pumps Informational Video

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