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This section provides an overview for dry, oilless & oil-free vacuum pumps as well as their applications and principles. Also, please take a look at the list of 22 dry, oilless & oil-free vacuum pump manufacturers and their company rankings. Here are the top-ranked dry, oilless & oil-free vacuum pump companies as of December, 2024: 1.WenLing Fine Air Compressor Manufacturing Co.,Ltd., 2.Zhejiang Wenling Hongbaoshi Vacuum Equipment Factory, 3.Air Squared, Inc.
Table of Contents
Dry vacuum pumps are a generic term for a variety of dry vacuum pumps that create a vacuum without the use of oil or other liquids.
Dry vacuum pumps are used in contrast to wet pumps, which use oil or other fluids to create a vacuum. There are several types of dry pumps with different mechanisms, including roots pumps, scroll pumps, claw pumps, and diaphragm pumps.
Unlike rotary pumps, these pumps do not emit oil mist, making them suitable for use in clean environments.
The main applications for dry vacuum pumps include semiconductor manufacturing lines, food processing lines, and various scientific analysis equipment such as electron microscopes. In these applications, contamination of the operating environment must be avoided. Dry vacuum pumps are suitable for applications that require a clean environment because their greatest feature is that there is no oil mist or other contaminants in the exhaust.
However, dry vacuum pumps achieve a vacuum of about 1 Pa, which is not very high. When a high vacuum is required, they are used in combination with turbomolecular pumps or ion pumps. The pumping speed differs depending on the type, so it is necessary to select the appropriate type according to the method of use.
Dry vacuum pumps are available in a variety of methods, but many of them are classified as gas-conveying pumps. All gas-conveying pumps have an intake port for taking in gas and an exhaust port for discharging gas, and the gas inside the pump is discharged by taking in gas through the intake port and discharging it through the exhaust port.
This mechanism reduces the amount of gas in the space and creates a vacuum by transporting various gases. In contrast to dry vacuum pumps, wet vacuum pumps use a hydraulic fluid or hydraulic oil to completely seal the inside of the dry vacuum pump when transporting gases.
In addition to sealing, hydraulic fluid reduces wear and friction between parts, absorbs heat of compression, and prevents rusting of pump parts.
Dry vacuum pumps are available in a variety of constructions for transporting gases. The main type of dry vacuum pumps is the positive displacement transfer type, of which the rotary type is the most common.
A vane pump is a pump in which a cylinder with multiple internal vanes inside a circular space rotates in a motion that draws air inside the space with the vanes. The centrifugal force generated in the vanes causes the tips of the vanes to contact the walls of the circular space, forming a sealed space.
A claw pump consists of two claw-shaped rotors, called claws, arranged side by side. Gas is discharged with the claws while rotating in opposite directions. The gas is compressed and discharged outside the pump.
The multistage roots pump is another pump in which a pair of oppositely rotating rotors discharges suctioned gas to the outside of the pump. The rotor has blades with a cocoon-shaped cross section.
A scroll pump transfers gas while a swirling scroll rotates within a fixed scroll with the same volute-shaped wall.
A screw pump consists of one to three screws and a casing that houses the screws. As the screws rotate, the gas is pushed through the casing and discharged.
Other than the above-mentioned rotary type, positive displacement dry vacuum pumps also include reciprocating type pumps. The reciprocating parts include diaphragm, piston, and bellows.
Dry vacuum pumps have no hydraulic oil in the path through which the gas passes. There is no risk of oil mist mixing with the exhaust gas or oil evaporating and diffusing into the vacuum vessel. The ability to obtain a clean exhaust gas and vacuum space is a major feature of dry vacuum pumps.
Another major advantage is that they do not require maintenance such as periodic oil replenishment or replacement. Other features of dry vacuum pumps include compactness, light weight, low vibration, and low noise.
*Including some distributors, etc.
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Air Squared, Inc., established in 1991 in Thornton, Colorado, USA, is a manufacturer of aerospace equipment and scroll technology. The company specializes in scroll compressors, expanders, and vacuum pumps. and holds ISO 9001 certification, ensuring the products offer precision, stability, and durability. Its proprietary scroll technology finds application in various industries, including HVAC, refrigeration, aerospace, and medical equipment manufacturing, providing efficient and oil-free compression and expansion solutions that enhance system performance while reducing environmental impact. It offers specialized products, and unique solutions that meet the complex needs of professionals and businesses, resulting in enhanced efficiency and sustainability.
Kashiyama Industries, established in 1951 and formerly known as Kashiyama Shoten, headquartered in Nagano, Japan is a manufacturer of vacuum pumps and equipment and also offers total support for ski resorts. Their vacuum pumps include the SDE series, designed for harsh duty applications, while the MU-X and MU-P/H series are intended for light process applications, and The NeoDry series, for the general industry. These are commonly used in the semiconductor industry. Apart from producing vacuum equipment, they also offer support for the ski business, from equipment to planning and operation.
Becker Pumps Corporation, founded in 1885 in Cuyahoga Falls, OH, is a manufacturer of customer-oriented vacuum solutions for applications such as degassing, injecting, evacuation, gas recirculation, and pneumatic conveying. The company offers industrial vacuum pumps, compressors, pressure pumps, accessories such as replacement vanes, filters, separators, and maintenance and repair kits. The pumps are used in addictive manufacturing, maple sugar extraction, food packaging, food processing, power generation, and medical industries. The company offers factory repair, return authorization requests, pump rentals, training, and mobile services.
Airtech, Inc. is a manufacturer of vacuum and pressure technology solutions since 1982. Headquartered in New Jersey, USA, the company's product portfolio encompasses a wide range of offerings, including vacuum pumps, blowers, and related components. These products serve a multitude of industries, including food & beverage, medical & dental, environmental, packaging, and more. Its notable product line is its vacuum pumps, which play a critical role in removing air and creating a controlled environment for various processes. These pumps are designed with precision to ensure efficient performance. The company is ISO9001:2015 certified; its products are CE-certified and RoHS compliant.
SMTmax, headquartered in California and established in 2009, is a manufacturer and supplier of SMT tools and equipment for both prototyping and production purposes. Its product offerings encompass pick and place machines, stencil printers, BGA stations, reflow ovens, station parts, and have expanded into the dental clinic and lab fields. The company also provides additional services such as circuit board production, electronic test and measurement instrument manufacturing, customized electronic hardware design, and software development, making them a comprehensive solution for various electronic and manufacturing needs.
SHINKO SEIKI CO., LTD., established in 1949, and located in Kobe, Japan, is a manufacturer of vacuum devices, electric furnaces and semiconductor manufacturing equipment. Its product line includes a vast array of vacuum pumps such as mechanical booster pumps, vacuum exhaust unit, oil sealed rotary vacuum pumps and water ring vacuum pumps. Its product range also inlcudes soldering equipments, optical inspection equipments, thin film forming equipments, and plasma processing equipments. The company holds several certification for its operation such as the ISO 14004, and the ISO 9001.
Pfeiffer Vacuum GmbH, established in 1890 and based in Aßlar, Germany, is a manufacturer of vacuum pumps. Its product range includes rotary vane pumps, diaphragm pumps, scroll pumps, screw pumps, and multi-stage roots pumps. These products are used in various applications, including scientific instruments, medical and pharmaceutical industries, automotive and mobility sectors, photovoltaics, and the process industry. The company holds ISO 14001 and ISO 9001 certifications, and various products have obtained SEMI S2 Certificates.
Founded in Osaka, Japan in 1950, Osaka Vacuum, Ltd. is a manufacturer of vacuum pumps and systems that holds the ISO14001 certification. Their extensive product line includes a wide range of vacuum pumps, such as dry, turbo molecular, liquid ring, and root pumps. oil-sealed rotary pumps, ejectors, and other vacuum equipment are also offered. They also provide vacuum systems for various applications such as general vacuum exhaust, freezing, drying, etching, distillation, polymerization, and more, serving markets including semiconductor, solar, iron and steel, textile, food, oil, atomic energy, and many others.
TAIKO KIKAI INDUSTRIES CO., founded in Japan, in 1956 is a manufacturer of blowers, vacuum pumps and environment protection devices. The company's product portfolio includes Sewage Treatment Plant, Rotary Blower, Diaphragm Blower, Small Hydroelectric Power Generation Systems, Gear Pumps and piston Pump. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also provide services including product selection, installation, preventative maintenance, troubleshooting, and repair.
Ulvac Inc., established in 1952 and headquartered in Kanagawa, Japan, is a manufacturer of vacuum equipment, components, peripheral devices, and materials for the solar cell and semiconductor industries, among others. The company operates businesses in six areas, including materials, components, electronic devices, semiconductors, and flat panel display production equipment. Some of its products include roll coaters, semiconductor production equipment, LED production equipment, leak detectors, and vacuum brazing furnaces. It is ISO9001 certified, and its net sales in the 2022 fiscal year were 227.5 billion Japanese Yen, with 34% of this amount coming from semiconductor and electronic device production equipment.
ANEST Iwata Corporation, founded in 1926 in Yokohama, Japan, is a manufacturer of air compressors, spray guns, coating equipment, and vacuum pumps. The company specializes in precision spray equipment and air compressor manufactures a diverse variety of products including but not limited to air compressor, Nitrogen gas generator, food equipment, painting robots and energy saving exhaust set. The products are used in industrial manufacturing, woodworking, aerospace, automotive and similar production industries for various applications such as suction transfer, gas replacement, optimal coating process, uniform material usage in production and producing compressed air for pneumatic equipment.
ORION Machinery Co., LTD was founded in Nagano, Japan in 1946. ORION’s product line features precision air processors, vacuum pumps, chillers, dehumidifiers, air dryers, temperature test chambers, infrared and space heaters, temperature regulators, and automated milking equipment for dairy farming.
WenLing Fine Air Compressor Manufacturing Co., Ltd. is a manufacturer of air compressors and related equipment based in China. The company specializes in the production of various air compressors including oil-free air compressors, oil-free air pumps, medical silent oil-free air compressors, oxygen concentrator air pumps, and oil-free air compressors for labs. These compressors cover a wide spectrum of industries, including medical, laboratory, and industrial sectors, where air purity is crucial. Additionally, the company provides spare parts for its compressors, ensuring that its products can be maintained and repaired over time.
Zhejiang Wenling Hongbaoshi Vacuum Equipment Factory is a manufacturer and supplier of vacuum pumps and related equipment based in China. Established in 2003, the company's products are designed to cater to a diverse range of industrial applications that require precise vacuum conditions. Its product lineup includes oil vacuum pumps, oilless vacuum pumps, vacuum degassing chambers, high industrial vacuum pumps, and more. These comprehensive lines of vacuum products are designed to meet the diverse technological requirements of various industries and customers. These vacuum pumps find applications in various sectors including vacuum refrigeration, printing mechanisms, refrigerant recovery devices, tea packaging, air-conditioning, and more.
Hokaido Vacuum Technology is a manufacturer in the field of vacuum pumps based in China. Established in 2002, the company has rapidly expanded its operations and operates with a global perspective. The company offers a range of vacuum pumps and professional vacuum systems tailored for industrial vacuum applications. These applications include vacuum for packaging, degassing, pneumatic conveying, drying processes, distillation, and more. Its product lineup includes oil-lubricated rotary vane vacuum pumps, dry screw vacuum pumps, water ring vacuum pumps, side channel blowers, and more. Additionally, they provide vacuum pump repair services. The company is ISO9001 certified.
Everest Blowers System Pvt. Ltd. is a manufacturer and supplier of industrial blower and vacuum technology solutions since 2007. The company is headquartered in New Delhi, India and its product range serves diverse sectors, including wastewater treatment, pneumatic conveying, pneumatic conveying, cement production, and more. By offering its comprehensive lineup of efficient equipment, the company empowers industries to optimize their processes, reduce energy consumption, and enhance overall productivity. One of its notable products is its industrial blowers. These blowers play an important role in creating and maintaining air and gas flows required for various manufacturing operations.
Uni-Crown Co. Ltd., established in 1984 and headquartered in New Taipei City, Taiwan, is a designer and manufacturer of vacuum pumps and vacuum systems. The company's products include air compressors, silent air compressors, and blowers for automatic machinery. Its products are used in the manufacture of home appliances, consumer products, and laboratory equipment. It works extensively with original equipment and private label manufacturers and serves various industries, including semiconductors, medical equipment manufacturing, and food and beverage processing. Its notable clients include ASE Group, TSMC, and ASE Group.
Busch Vacuum Solutions was founded in 1963 in Virginia Beach, Virginia, US, as a manufacturer of vacuum pumps and systems, compressors, and blowers. The comprehensive product portfolio encompasses solutions tailored for vacuum and overpressure applications across diverse industries, such as chemicals, semiconductors, plastics, and food. The products have a wide array of applications, ranging from packaging food and sterilizing medical equipment to lifting substantial steel tubes. They also play a crucial role in combating diseases, addressing malnutrition, and facilitating the process of digitalization.
Taizhou Shouzhen Machinery Co., Ltd., founded in 1992 and based in Zhejiang, China, is a reputable supplier and manufacturer specializing in vacuum pump machinery and equipment. The company offers a diverse range of products, including industrial pumps, compressors, and related accessories, delivering tailored solutions that effectively address the unique requirements of various sectors, including construction and agriculture. Leveraging advanced manufacturing processes and stringent quality control measures, the company ensures that its products consistently meet rigorous international standards.
Atlas Copco UK Holdings Limited, established in 1974 in the UK, is a distributor and supplier of a wide range of industrial tools and machinery used in the aerospace, mobile construction, air motors, and electric motor industries. The company's product portfolio includes air compressors, N2 and O2 generators, tools, and industrial assembly solutions. Atlas Copco UK Holdings Limited also offers a range of products for mobile construction, including power generators, as well as providing clients with 24/7 tool and equipment rental solutions.
Nash was established in 1859 and is headquartered in Norwalk, Connecticut, U.S.A. is a manufacturer of vacuum solutions. The company offers an array of products including liquid ring vacuum pumps, vacuum booster pump and ejector systems, and custom-engineered vacuum systems. These products find applications in waste and sewage water treatment industries, power distributors and suppliers, and paper processing factories. It extends services like training of technicians, customization of specialty tools, and rapid repairs backed by the manufacturer’s warranty.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | WenLing Fine Air Compressor Manufacturing Co.,Ltd. |
10.8%
|
| 2 | Zhejiang Wenling Hongbaoshi Vacuum Equipment Factory |
9.7%
|
| 3 | Taizhou Shouzhen Machinery Co., Ltd. |
6.5%
|
| 4 | Hokaido Vacuum Technology |
6.5%
|
| 5 | Becker Pumps Corporation |
6.5%
|
| 6 | Air Squared, Inc |
5.4%
|
| 7 | Welch |
5.4%
|
| 8 | Kashiyama Industries |
5.4%
|
| 9 | Airtech, Inc. |
4.3%
|
| 10 | Atlas Copco UK Holdings Ltd |
4.3%
|
Derivation Method
The ranking is calculated based on the click share within the dry, oilless & oil-free vacuum pump page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
6 | 31.6% |
|
United States of America
|
5 | 26.3% |
|
China
|
4 | 21.1% |
|
Germany
|
2 | 10.5% |
|
India
|
1 | 5.3% |
|
United Kingdom
|
1 | 5.3% |
122 products found
122 products
UNI-CROWN CO., LTD.
230+ people viewing
Last viewed: 19 hours ago
Our oil -free vacuum pump is an ideal solution for many industrial purposes. Use for gas removal, extraction, vacuum fixing, pick -and -place, air ...
UNOZAWA-GUMI IRON WORKS,LTD.
40+ people viewing
A general-purpose dry vacuum pump developed as a vacuum pump that is resistant to condensable gases. Ideal for chemical, pharmaceutical, food, meta...
Mitsukai Seisakusho Co., Ltd.
330+ people viewing
Last viewed: 14 hours ago
◼︎ Characteristics ・ Please let us know if it is only for vacuum or pressure. ・ MF-10-T has further improved the performance of the MF-10 within ...
2 models listed
UNOZAWA-GUMI IRON WORKS,LTD.
20+ people viewing
A general-purpose dry vacuum pump with many years of experience and a proven track record. Ideal for chemical, pharmaceutical, food, metal, optical...
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270+ people viewing
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We bring added value to our business through our own end -use solutions and innovative OEM products. Oilless vacuum pump Un-300VH feature Untruste...
Mitsukai Seisakusho Co., Ltd.
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◼︎ Characteristics ・ You can get a high degree of vacuum by connecting the pump in series. In addition, parallel connection is also possible as a ...
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UNI-CROWN CO., LTD.
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We bring added value to our business through our own end -use solutions and innovative OEM products. Oilless vacuum pump Un-300V feature Untrusted...
Mitsukai Seisakusho Co., Ltd.
540+ people viewing
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◼︎ Characteristics ・ You can get a high degree of vacuum by connecting the pump in series. In addition, parallel connection is also possible as a ...
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KNF DAC GmbH
260+ people viewing
Last viewed: 3 minutes ago
Very Fast Response
Explasproof and combustible gas (hydrogen, methane, etc.) can be transferred as standard It is also recommended for metanation applications! ■ Fea...
UNOZAWA-GUMI IRON WORKS,LTD.
50+ people viewing
Last viewed: 10 hours ago
Light and compact air-cooled dry vacuum pump." The highly durable roots type has a long maintenance cycle and can also exhaust water vapor. ■The t...
KNF DAC GmbH
380+ people viewing
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Very Fast Response
Explasproof and combustible gas (hydrogen, methane, etc.) can be transferred as standard It is also recommended for metanation applications! ■ Fea...
UNOZAWA-GUMI IRON WORKS,LTD.
40+ people viewing
Last viewed: 5 hours ago
This is an "ECO dry vacuum pump for clean processes" with low power consumption and excellent durability. Ideal for non-corrosive gas applications ...
Mitsukai Seisakusho Co., Ltd.
310+ people viewing
Last viewed: 18 hours ago
◼︎ Characteristics ・ You can get a high degree of vacuum by connecting the pump in series. In addition, parallel connection is also possible as a ...
3 models listed
UNI-CROWN CO., LTD.
280+ people viewing
Last viewed: 19 hours ago
UN-180V Oilless vacuum pump is perfect for manufacturing and industrial market applications, but also needs to consider specific medical, laborator...
KNF DAC GmbH
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■ Features ・ Clean driving with oil -free ・ Compatible with strong corrosive gas ・ Extremely small / lightweight ■ Recommended application ・ G...
Edwards
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■EXS dry screw vacuum pump Edwards' EXS dry screw vacuum pumps take our industry-proven screw vacuum technology to the next level. EXS is based on ...
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UNI-CROWN CO., LTD.
260+ people viewing
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UN-120VH Oilless vacuum pump is perfect for manufacturing and industrial market applications, but also needs to consider specific medical, laborato...
KNF DAC GmbH
290+ people viewing
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■ Features ・ Clean driving with oil -free ・ Compatible with strong corrosive gas ・ Extremely small / lightweight ・ The exhaust speed can be cha...
Daido Machine Manufacturing Co., Ltd.
40+ people viewing
Although reciprocating vacuum pumps have a low speed and a large weight per air volume, they are still widely used today because of their advantage...
KNF DAC GmbH
420+ people viewing
Last viewed: 18 hours ago
Very Fast Response
Explasproof and combustible gas (hydrogen, methane, etc.) can be transferred as standard It is also recommended for metanation applications! ■ Fea...
UNI-CROWN CO., LTD.
290+ people viewing
Last viewed: 19 hours ago
UN-90VH Oilless vacuum pump is perfect for manufacturing and industrial market applications, but also needs to be considered for specific medical, ...
Yagyu Shokai Co., Ltd.
20+ people viewing
Last viewed: 1 day ago
Very Fast Response
- Oil-free and clean diaphragm dry pump, so there is no need to worry about oil contamination. - Suitable for vacuum applications in rotary evapora...
Yagyu Shokai Co., Ltd.
20+ people viewing
Last viewed: 2 hours ago
Very Fast Response
■Features - Oil-free and clean diaphragm dry pump, so there is no need to worry about oil contamination. - Suitable for vacuum applications in rota...
Yagyu Shokai Co., Ltd.
20+ people viewing
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Very Fast Response
■Features ・Since no oil is used, clean exhaust is possible. - Built-in thermal protector. *Intake pipe and exhaust pipe are not included.
Yagyu Shokai Co., Ltd.
20+ people viewing
Last viewed: 12 minutes ago
Very Fast Response
Yagyu Shokai Co., Ltd.
20+ people viewing
Last viewed: 1 day ago
Very Fast Response
■Features -Diaphragm type dry vacuum pump. - Can be used with a 100V power supply, can withstand long-term continuous operation, and is easy to mai...
Yagyu Shokai Co., Ltd.
20+ people viewing
Last viewed: 5 hours ago
Very Fast Response
■Features - Can operate from atmospheric pressure. - Simple structure and easy maintenance. - Built-in balance port allows restart from vacuum stat...
KNF DAC GmbH
340+ people viewing
Last viewed: 18 hours ago
Very Fast Response
Explasproof and combustible gas (hydrogen, methane, etc.) can be transferred as standard It is also recommended for metanation applications! ■ Fea...
KNF DAC GmbH
240+ people viewing
Last viewed: 18 hours ago
Very Fast Response
Explasproof and combustible gas (hydrogen, methane, etc.) can be transferred as standard It is also recommended for metanation applications! ■ Fea...
KNF DAC GmbH
340+ people viewing
Last viewed: 4 hours ago
Very Fast Response
■ Features ・ Clean driving with oil -free ・ Compatible with strong corrosive gas ・ Effective for high -humidity gas due to gas ballast ・ Ideal ...
