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This section provides an overview for piston seals as well as their applications and principles. Also, please take a look at the list of 34 piston seal manufacturers and their company rankings. Here are the top-ranked piston seal companies as of December, 2024: 1.American High Performance Seals, 2.Freudenberg-NOK, 3.RAYFLON.
Table of Contents
A piston seal is a component used to prevent fluid leakage within a cylinder.
Made of rubber, ring-shaped seals are commonly used to fill the gap between the piston and cylinder bore, maintaining a sealed condition.
They are employed in hydraulic cylinders and pneumatic cylinders to prevent leakage of oil or air and to prevent foreign matter from entering from the outside.
Piston seals are essential components for maintaining the performance of machinery and enabling safe operation.
Defects such as the degradation of piston seals can lead to machine malfunction and safety issues, making them critical components.
*Including some distributors, etc.
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Performance Sealing, Inc. is a manufacturer of engineered high-pressure polymer seals, bearings, and related components, located in Irvine, CA, and founded in 1868. The product line has spring-energized PTFE seals, hydraulic seals, self-lubricating polymer bearings, and PTFE rotary seals used in the scientific instrumentation, oil & gas, industrial equipment, semiconductor, and aerospace industries. The ISO 9001-certified company offers custom seal engineering services with capabilities such as design, rapid prototyping, reverse engineering, in-house testing, and providing installation tools.
Allied Metrics was founded in the 1990s and is headquartered in Naples, Florida. The ISO 9001:2015-certified company is a full-service manufacturer and distributor of hydraulic seals, oil seals, and pneumatic seals. The company’s product offerings include O-rings, seals, V-rings & V-ring seals, X-rings & square rings, and wear bands & guide rings. The company’s service offerings include on-demand delivery with short cycle times, custom-designing to customer specifications, prototype parts, and emergency repairs.
Rayflon Polymer Technology Co., Ltd. was established in 2005 and is based in Wuxi, China, as a manufacturer and supplier of polymer products. Its product portfolio includes polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), and polytetrafluoroethylene products (PTFE) seals. The company products are used in various industries including aerospace, automotive, telecommunication, and mechanical enginnering companies. Chemical inertness, tensile strength, and erosion resistance characteristics make these products suitable for electrical insulation, sealing components, valve seals, and other applications.
Max Spare Limited, established in 1967 and based in Mumbai, Maharashtra, India, is a manufacturer of sealing solutions. Some of its product offerings include hydraulic seals, pneumatic seals, rotary shaft seals, O-rings, and V-belts. Its products are generally used in various industrial applications for sealing and power transmission. These products help prevent leaks, maintain pressure, and transmit power in machinery and equipment. The company is an ISO 9001 certified manufacturer and an Authorized Economic Operator with Indian Customs.
Tianjin SWKS Technology & Development Co., Ltd, established in 2016 and headquartered in Tianjin, China, is a manufacturer that specializes in designing and developing rubber products. The company offers a wide range of products, including O-rings, radial shaft seals, oil seals, and hydraulic seals. It also offers rod seals, rubber-to-metal bonded parts, reinforced fabric seals, and rubber shock absorbers. Its product creates a barrier that prevents the ingress of moisture, dirt, and other contaminants. The company has achieved ISO 9001:2015 and ISO/TS 16949:2009 certification. It serves a diverse range of industries, including automotive, machinery, petroleum, chemical, and more.
Xiamen Better Silicone Co., Ltd, established in 1998 and based in Xiamen, China, is a manufacturer of mold tools, rubber, and plastic products. The company specializes in manufacturing various silicone rubber products, including silicone seals, gaskets, keypads, and custom silicone parts that come with optimal resistance to extreme temperatures, chemicals, and weathering for long-lasting performance and stability. The offerings find applications across various industries, such as automotive, electronics, medical devices, and household appliances, where the need for robust silicone components is important. It is ISO 9001, FDA, RoHS, and LFGB certified and uses injection molding technique for optimal molds.
AFT Fluorotec was founded in 1986 in Welwyn Garden City, Hertfordshire, England, as a manufacturer, designer, and provider of precision machined components and industrial coatings. The company's product portfolio consists of wiper seals, backup rings, custom seals, RCD seals, and standard seals. It also offers surface preparation, anti-corrosion coatings, non-slip coatings, and self-lubricating coatings. The seals ensure stability in applications requiring the prevention of liquids from entering hydraulic systems, while the coatings are applied to protect metal components and enhance resistance to chemicals, corrosion, abrasion, and wear. The company serves various industries, including aerospace, automotive, construction, electronics, food, and industrial bakeware.
SKF UK is the British division of SKF, originally founded in 1907 and headquartered in Gothenburg, Sweden. SKF designs, develops, and manufacturers bearings, seals, lubrication systems, and services worldwide, with industrial and automotive segments, providing solutions for industries including aerospace, agriculture, transportation, food and beverage, general machinery, material handling, mining, energy, paper, and wind energy. SKF UK offers rolling bearings, mounted bearings, automotive seals, lubrication management, vehicle aftermarket services, waste electric products, and electronic equipment products as well as services including maintenance, remanufacturing, customization, and training.
Hallite Seals International Limited, established in 1903 and headquartered in Middlesex, England, is a manufacturer of premium seals, wipers, and bearings for the fluid power industry. The company’s products include rod seals, single and double-acting piston seals, and static seals. Its rod seals prevent leakage from hydraulic cylinders, and single and double-acting piston seals are designed to maintain fluid pressure within cylinders. The company provides sealing technologies for construction, mining, and industrial machinery industries. Its materials range from armorlene PTFE to elastomers, and it also provides CAD, design information, and fluid compatibility guidance services.
Freudenberg-NOK is a manufacturer of various types of sealing products, which was established in 1849 and is headquartered in Weinheim, Germany. The company fabricates clamp seals, dairy couplings, radial shaft seals, V-ring seals and deflectors, and rod seals. It also manufactures precision-molded parts, butterfly valve seals, hydraulic accumulators, and stuffing box packings. Its clamp seals’ dimensions are standardized according to DIN 32676. Its radial shaft seals have friction-optimized designs to decrease fuel consumption, which leads to reductions in CO2 emissions.
Trelleborg AB, a company founded in 1905 and headquartered in Trelleborg, Sweden, is a manufacturer that provides solutions for extreme cold, heat, pressure, or the tremendous power of nature. The company offers a wide range of products, including Cassette Seal CSL 1500, Pneumatic seals, O-rings, and more. It also has a shop called Seals-Shop that offers various products, such as Rod and Piston Seals. It provides rubber wear liners with synthetic rubber and chemical resistance. It has received the Excellence in Quality 2018 Award and Certificate of Merit from Hyster-Yale Group. It serves various industries, including Aerospace, Agriculture, and more.
DMS SEALS TECHNOLOGY CO.,LIMITE, founded in China in 2008, is a supplier of O Ring and Hydraulic Seals. The company offers O-Rings in various materials, sizes, and configurations and hydraulic seals including piston seals, rod seals, wipers, and wear rings used for optimal performance in hydraulic systems, ensuring leak-free and efficient operation. It serves a diverse range of industries, including but not limited to automotive, aerospace, industrial manufacturing, hydraulics, and more.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | American High Performance Seals |
33.3%
|
| 2 | Freudenberg-NOK |
33.3%
|
| 3 | RAYFLON |
33.3%
|
Derivation Method
The ranking is calculated based on the click share within the piston seal 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 (%) |
|---|---|---|
|
China
|
5 | 45.5% |
|
United States of America
|
2 | 18.2% |
|
United Kingdom
|
2 | 18.2% |
|
India
|
1 | 9.1% |
|
Sweden
|
1 | 9.1% |
