All Categories
History
This section provides an overview for vacuum seals as well as their applications and principles. Also, please take a look at the list of 39 vacuum seal manufacturers and their company rankings. Here are the top-ranked vacuum seal companies as of January, 2025: 1.PAC Machinery, 2.Weston Brands LLC, 3.Walton's Inc.
Table of Contents
A vacuum seal is a sealing device that utilizes the properties of a liquid called magnetic fluid, which is attracted by a magnet.
The magnetic fluid is attracted to the magnet like iron sand while holding the fluid. The magnets in the vacuum seal hold the magnetic fluid, sealing the gap between the device and the joint. This prevents air, gases, and particulates from entering the sealed object, thereby maintaining a vacuum environment.
The holding force of the magnetic fluid is determined by the strength of the magnet (magnetic force), so the stronger the magnetic force, the greater the pressure resistance of the ring of magnetic fluid.
Vacuum seals are used to maintain quality when manufacturing products in which impurities, air, or moisture are strictly prohibited. Due to their high effectiveness in blocking fluid magnetism, they are often used in manufacturing industries with high vacuum, such as semiconductor, solar cell, or OLED panel manufacturing for smart phones.
Under these manufacturing conditions, vacuum seals have a very wide range of applications, as they are required to save energy and make manufacturing equipment more compact.
In semiconductor manufacturing, vacuum seals are used in sputtering, CVD, and ion implantation equipment. These require a high-vacuum environment with vacuum seals to form uniform thin films and to control the electrical properties of semiconductors through ion implantation.
They are also used in monocrystalline pulling equipment for the production of silicon ingots, which are indispensable for the manufacture of solar cells. Silicon ingots are vacuumed to prevent contamination from dust and dirt and oxidation by air during the manufacturing process. Vacuum seals are utilized to maintain a vacuum environment inside the equipment.
In OLED, vacuum seals are required for vacuum deposition to form thin films of OLED elements. In recent years, the demand for vacuum seals has increased as the demand for OLED has grown from LCDs.
Vacuum seals use a liquid called magnetic fluid. A magnetic fluid consists of three components: magnetic nano-sized particles (magnetic particles), a surfactant, and a base liquid, such as water or oil.
Magnetic particles usually agglomerate with each other like magnets (spiking phenomenon), and surfactants are generally used to prevent this. Since surfactants have polarity, the same polarity repels each other. As a result, it is possible to create a stable magnetic fluid as a colloidal solution without agglomeration.
In addition to the magnetic fluid, the vacuum seal uses a permanent magnet and a rotating shaft. The vacuum seal has a mechanism that seals while rotating at high speed, but prevents contact between the rotating shaft and the magnetic pole material or permanent magnet. Since solids do not come into contact with each other like oil sheets, there is no need to worry about friction.
A wide range of shaft shapes of seals are manufactured, from small products of a few millimeters to large products of several meters in scale. Vacuum seals consist of a rotating shaft and a pole piece with strong magnetism, and a magnetic field is generated in the gap between the two materials.
By guiding the magnetic fluid through the gap in this magnetic field, the magnetic fluid forms an O-ring and adheres closely to the pole piece, preventing intrusion from the outside.
Because of the contact between the rotating shaft and the fluid, the rotating shaft can be rotated as desired without abrasion. Furthermore, since the magnetic fluid seals the gap along the magnetic force lines, it does not flow out due to pressure differences, thus enabling the maintenance of a vacuum environment.
The greater the magnetic force, the higher the pressure resistance of the ring formed by the magnetic fluid. By forming the ring in several stages, a pressure-resistant vacuum seal is completed and can withstand greater pressures.
The inert nature of the magnetic fluid and its low vapor pressure also have a bearing on the life of the vacuum seal. The advantage of using a magnetic fluid that does not react easily is that it is resistant to deterioration and can be used for a long period.
*Including some distributors, etc.
Sort by Features
Sort by Area
PAC Machinery, established in 1963, and based in California, USA, is a manufacturer and supplier of packaging solutions and materials. Their product portfolio includes rollbag sealers, heat sealers, horizontal flow wrappers, shrink-wrap machines, chamber vacuum sealers, medical sealers, and other materials. The products are used in various industries which include beauty, cannabis, chemical, E-commerce, electronics, food, medical, and pets. The company markets its packaging to various brands which include Aids, Audion Elektro, Audio Automation, Vetrod, Milwaukee Bag, and more.
Pawling Engineered Products Inc., established in New York in 1946 is a manufacturer of seals and gaskets that are used in industries including aerospace; pharmaceutical and transportation, Their product portfolio includes Inflatable Seals, Inflatable Clamps, Inflatable Actuators, Compression Seals and Gaskets and Septa. he company's products find applications including sealing out radiation in nuclear power plants, Airframe Component Bonding, Conveyor Brakes or Stops and sealing vertical lift doors and many more. The company is ISO 9001 certified since 1994
CeramTec North America is the American subsidiary of CeramTec of Plochingen, Germany. CeramTech North America is headquartered in Laurens, South Carolina. As a fully integrated advanced ceramics manufacturer capable of handling every phase of the development and manufacturing of hermetic products, especially for those in the automotive, chemical, electronics, and medical equipment markets. Technical ceramics products are divided into four major groups of materials: silicate ceramics often made from raw materials and alumina, oxide ceramics including zirconium oxide, non-oxide ceramics based on materials such as carbon, and piezoceramics used to convert signals to and from mechanical and electrical.
American High Performance Seals Inc. established in 1994 and based in Oakdale, PA, USA, is a manufacturer and supplier of performance rotary The company’s diverse product lineup includes rotary seals, hydraulic and fluid seals, pump seals, and FDA-compliant seals, each crucial for ensuring the great performance and extended lifespan of mechanical components in various industries such as automotive, energy, pharmaceutical, and food machinery. These products play a significant role in maintaining equipment efficiency and reliability. The company also provides tailored services like application-specific seal design and rapid prototyping.
Amerivacs, established in 1995 and based in San Diego, California, USA, is a manufacturer and supplier of vacuum sealers. The company's product lineup includes vacuum sealers, nitrogen purge systems, storage solutions, and preservation equipment, pivotal for enhancing the longevity and quality of various products. These items are essential for industries such as food, electronics, and pharmaceuticals, ensuring optimal packaging and preservation. It offers services such as exceptional customer service, ensuring clients achieve efficient and effective packaging and storage solutions.
Weston Brands LLC is a manufacturer and distributor of kitchen products and supplies founded in 2009 and headquartered in North Carolina, USA. The company offers a diverse collection of kitchen tools and appliances, including blenders, dehydrators, meat processing equipment, pasta machines, and vacuum sealers. It also provides canning equipment, seasoning and meat injectors, strainers, packaging supplies, and replacement parts for its products. The company’s products are sold through online retailers, brick-and-mortar stores, and specialty retailers. It serves a wide range of clients, including households, restaurants, and various food-related businesses.
Rigaku Corporation established in Tokyo, Japan in 1951, is a manufacturer of oil seals used in FDP industries. The company develops and supplies universities, industry, and government labs integrated solutions across variety of disciplines, including structural proteomics, nanoengineering research, general purpose X-ray diffraction (XRD) and spectroscopy (XRF), materials analysis and quality assurance. The company has 1,400 employees and worldwide operations based in Japan, the U.S., Europe, and China. The company also has worldwide customer and technical support.
Guangdong IKE Industrial Co. Ltd., founded in 1994, is a dehydrator manufacturer based in Meizhou, Guangdong, China. The company offers various dehydrators, including cabinet and embedding models for industrial and commercial uses. It also develops food drying rooms and conveyor belt food dehydrators, along with accessories such as stainless steel shelves and racks. These products cater to the drying needs of various food types, including vegetables, fruits, meat, seafood, herbs, and spices. Additionally, Guangdong IKE has played a significant role in establishing national and industry standards for heat pump drying technology and closed-loop drying systems.
Robopak SRL, based out of Milan, Italy, is a manufacturer of food packaging machines and equipment. The company's core products include rotary fill and seal machines for stackable jars and sealing machines for any type of plastic or other material, including packaging machines and tray sealers with vacuum and protective atmosphere, simple sealing, and skin packaging. The company also supplies fully custom machines for use with non-food products. Its clients are producers of fresh pasta, ready-made meals, and vegetables for large-scale distribution.
Oltremare, established in 1960 and headquartered in Italy, is a manufacturer of turnkey plants and machinery for the cashew nut processing industry. The company's product range includes food processing machinery for rice, wheat, and pulses. Its solutions integrate processing operations to boost efficiency, productivity, and sanitation while minimizing space and environmental impact. The company addresses the industry's increasing need for food safety through automatic cleaning, x-ray sorting, and packing lines. With branch offices and agents across Europe, America, and Asia, it caters to diverse global markets, providing customized solutions and services.
Zhejiang Haizhou Packing Machine Co. Ltd., based in Wenzhou, China, is a designer and manufacturer of packaging machinery in several industries, including cosmetics, chemicals, and pharmaceuticals. The company has developed over ten series of machines and has passed CE certification. It also has over 100 varieties of machines, such as vacuum packaging, filling, and labeling machines, and its automatic filling line can be customized as per the customer’s requirements. The company also stocks hand wrappers suitable for packaging foods like vegetables, fish, and fruits and exports to several regions, including the Middle East, Europe, and Southeast Asia.
Zhejiang Tianyu Industry Co.,Ltd, founded in 2000 and based in Yongkang City, China, is a manufacturer and supplier of impulse sealers. The company's product portfolio includes manual impulse sealers, foot pedal impulse sealers, and automatic continuous sealers. These products are used in various industries, including food packaging, pharmaceuticals, and the cosmetics and personal care industry. The company provides services including training, technical support, and customization of its products to meet specific customer specifications or requirements. The company is ISO 9001 certified, and it sells its products to various countries including the United States, Japan, and Canada.
Bernhardt SAS, founded in France in 1956, is a manufacturer of flexible packaging for liquids and solids from a wide range of high-barrier films. The company offers a comprehensive range of laser imaging systems designed for application fields like fluid mechanics (aerodynamics, microfluidics), combustion (automotive, power generation) as well as spray and particle diagnostics (engines, pharma). It also provides camera based material testing (DIC/DVC) systems and in-cylinder infrared sensors. Its products are employed in medical diagnostics and imaging applications, including X-ray and CT scan equipment, offering high-resolution image capture.
Boss Verpackungsmaschinen GmbH & Co. KG., started in 1959 and based in Bad Homburg, Germany, is a manufacturer of vacuum machines, shrinking devices, and tray sealers. The company sells vacuum sealers like the MAX 46-S and MAX 42-S, which keep metallic products dry and oxygen-free. The company also supplies vacuum machines for special applications such as asparagus, nut, and ammunition packaging. Its standard vacuum bags are 90 μ thick and are used in vacuum sealers with one chamber. The sous vide vacuum bags are suitable for cooking and roasting and have a temperature resistance of -30 to +121°C.
Plexpack Corporation, headquartered in Toronto, Canada, is a manufacturer and supplier specializing in packaging machinery solutions. The company’s product portfolio includes bag sealers, shrink wrappers, bundlers, modified atmosphere packaging, and more. Their solutions include systems such as Emplex Bag & Pouch Sealing, VacPack Vacuum & Gas Sealing, and Damark Shrinkwrap & Bundling. They also offer custom engineering and expert consultative sales to meet customers’ specific requirements. The company offers multilingual support with locations in Canada and the U.S., serving customers in various industries including food and beverage, pharmaceuticals, automotive, and more.
Sencor, established in 1969 in Japan, is a manufacturer of electronic devices. The company offers an extensive and diversified product portfolio, including microwave ovens, electric kettles, vacuum cleaners, ventilation systems, and air conditioners. These devices find applications in various areas, including households, entertainment, kitchens, healthcare, and offices. Additionally, the company provides a range of recipes, such as Christmas Eve snacks, light salads with toasts, stimulating cinnamon-orange smoothies, and pumpkin soup with coconut milk, ginger, fresh coriander, and prawns.
All Plastics and Fiberglass, Inc., headquartered in Mobile, Alabama, has been a manufacturer and distributor of industrial plastics and fiberglass products since its founding in 1981. The company operates from a warehousing and manufacturing facility over 50,000 square feet. All Plastics and Fiberglass, Inc. produces fiberglass-reinforced plastics (FRP) fabrication solutions according to ASTM, AWWA, and PS15-69 standards. The company provides industrial components, including tanks, hoods and vents, ducts and stacks, grating, pipes and piping systems, structural shapes, platform and siding, and fiberglass pipe hangers.
Fellow Tech Material Technology, based in Tokyo, Japan, is a manufacturer of polymer multilayer capacitors (PMLCAP), and was established in 2019 as a joint venture between Mitsui Chemicals Tohcello Inc. and Fellowes Japan Co. Ltd. The company primarily produces PMLCAPs with low equivalent series resistance, low noise, high capacitance density, and wide temperature range. It also offers customization services including adjustments to size, voltage rating, terminal type, and capacitance value. The company’s products are used in manufacturing automotive electronics, power supplies, communication devices, and industrial equipment.
IMPAK Corporation, founded in 1993, is an American manufacturer headquartered in Los Angeles, California, specializing in flexible packaging solutions. The company's offerings encompass a range of flexible packaging supplies, including sealers and sorbents, pouches designed for child resistance and high-temperature applications, as well as specialized options like drum liners, scent shield bags, and side gusset bags. Moreover, the company provides desiccant solutions, oxygen absorbers, as well as vacuum and heat sealers. The company caters to various industries through its capabilities, including engineering, moisture control testing, short production runs, sealer repairs, large-scale print runs, as well as custom laminations, pouch production, and printing.
Kyodo International, Inc. established in 1970 and based in Kawasaki-shi, Japan, is a manufacturer and distributor of microfabrication tools and equipment. The company's product range includes deposition tools, photolithography equipment, etching machines, CMP processing units, and nanoimprinting tools. These products are used for the development and manufacturing of electronic components and systems. The company serves industries such as electronics manufacturing, microelectromechanical systems (MEMS) production, and life sciences, it ensures the delivery of high-precision tools for intricate manufacturing processes. Its services span the sale, repair, and overhaul of consumable parts.
Bizerba, established in 1866 and headquartered in Balingen, Germany, is a manufacturer and supplier of weighing and slicing technology for the retail and commercial sectors. The company specializes in hardware and software solutions and offers various products, including retail scales, checkout systems, and labeling systems. Its products serve food, logistics, and retail industries, and its RefurBiz line offers cost-effective refurbished equipment. The company serves operating companies, retailers, and butcheries and provides various services, including financing options and support.
Enfound Enterprise Co., Lt.d is a manufacturer and supplier of water and wastewater treatment products that was established in Tainan City, Taiwan, in 2000. The company produces aerators for injecting air into water to increase dissolved oxygen levels, UV sterilizers for killing microorganisms in water and preventing waterborne diseases, and diffusers for dispersing air bubbles into water to enhance aeration processes. It also offers related accessories such as pumps and filters. The company’s products are used mainly by clients in municipal water treatment, industrial wastewater treatment, and aquaculture operations.
Merck Millipore, founded in 1954 and headquartered in Darmstadt, Germany, is a manufacturer, distributor, and supplier of life science products and services. Their diverse range of products finds applications in research, development, and manufacturing of biotechnological and pharmaceutical drug therapies. Some of their offerings include filters for removing contaminants from liquids and gases, chromatography columns for separating and analyzing complex mixtures, reagents used in various laboratory assays, antibodies for detecting and quantifying specific molecules, and cell culture media for growing and maintaining cells in culture. Their products and services are utilized significantly in the advancement of life sciences and drug development.
Nok Corporation, founded in 1941 and based in Tokyo, Japan, is a manufacturer of several products, including sealing, rubber, and electronic products, and is part of the NOK Group. The company also makes flexible printed circuits (FPC), office automation equipment, and functional membranes, serving industries such as automobile, construction machinery, and electronic equipment. In 1960, the company expanded its production by constructing plants in Kumamoto, Fujisawa, and Shizuoka, and it was listed on the Tokyo Stock Exchange in 1961. In 1979, it was the first to set up a production base in the US before any Japanese automaker.
Henkelman is a distributor that specializes in vacuum packaging machines since their establishment in 1994. With an annual output of around 15,000 machines, they distribute to 450 distributors in over 80 countries. Their mission is to spread awareness of how vacuum packaging technology not only enhances product quality and protection but also helps to reduce waste and save businesses money. They focus solely on developing and manufacturing chamber vacuum packaging machines to ensure the best quality possible.
James Dawson Enterprises (USA) Inc., founded in 1975 with headquarters in Plattsburgh, New York, USA, is a distributor of packaging equipment, machinery, and materials. The company's product line includes shrink wrap machines, flow wrappers, desiccants, roll stock, and corrosion-prevention packaging materials. The company also custom manufacturers various products, including packaging bags, pouches, and custom desiccant products. It carries brands that include Accu-Seal, Clariant, Hacona, PAC Machinery, and Zerust. The company serves markets that include material handling, automotive, agriculture, food processing, and pharmaceuticals.
Ranking as of January 2025
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | PAC Machinery |
13.8%
|
2 | Weston Brands LLC |
12.1%
|
3 | Walton's Inc |
10.3%
|
4 | VACMASTER |
8.6%
|
5 | Amerivacs |
8.6%
|
6 | Pawling Engineered Products Inc. |
6.9%
|
7 | Avid Armor |
5.2%
|
8 | Rotopack srl |
3.4%
|
9 | Oltremare |
3.4%
|
10 | Guangdong IKE Industrial Co.,Ltd. |
3.4%
|
Derivation Method
The ranking is calculated based on the click share within the vacuum seal page as of January 2025. 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 (%) |
---|---|---|
United States of America | 10 | 33.3% |
China | 4 | 13.3% |
Italy | 3 | 10.0% |
Germany | 3 | 10.0% |
Japan | 2 | 6.7% |
France | 1 | 3.3% |
Canada | 1 | 3.3% |
Czech Republic | 1 | 3.3% |
Taiwan | 1 | 3.3% |
china | 1 | 3.3% |
United Kingdom | 1 | 3.3% |
Australia | 1 | 3.3% |
Netherlands | 1 | 3.3% |
13 products found
13 products
Technetics Group
70+ people viewing
Last viewed: 4 hours ago
■Can be used on damaged ring joint flanges. It has the elastic properties of a Helicoflex seal. ・Omicron Seal HLO is for ring joint grooves and us...
Technetics Group
50+ people viewing
Last viewed: 22 hours ago
■Introducing C-rings with cross sections and wall thicknesses that take compressive loads into consideration. -The sealing concept of FLEX TM is th...
130+ people viewing
Last viewed: 9 hours ago
By attaching a vacuum gauge to this gauge adapter, you can perform more detailed vacuuming work.
150+ people viewing
Last viewed: 10 hours ago
High vacuum grease that prevents leaks from joints. Compatible with conventional refrigerants. *Not compatible with new refrigerants.
130+ people viewing
Last viewed: 6 hours ago
Quickly (approximately 30 seconds) and permanently repair pinholes or leaks in pressure and vacuum systems. Repairs can be completed simply by heat...
Kyodo International, Inc.
90+ people viewing
Last viewed: 13 hours ago
A dustproof seal for atmospheric use that completely seals out minute contaminants such as bearing grease, gas, and dust. ■Features - Simpler one-...
Technetics Group
60+ people viewing
Last viewed: 22 hours ago
■Reduced Y of helicoflex. No loss of functionality even under positive pressure and high temperatures. The Helicoflex Beta HNR spring has special p...