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Top 10 Sealing Ring Brand & Manufacturers

This section provides a list of the top 10 Sealing Ring manufacturers, Website links, company profile, locations is provided for each company. Also provides a detailed product description of the Sealing Ring, including product introduction, history, purpose, principle, characteristics, types, usage and purchase precautions, etc.

Manufacturers （Ranking in no particular order）

: NOK Corporation

Address: Japan

Company website: https://www.nok.co.jp/

Company Overview

NOK of Japan - a pioneer and contributor in the world's sealing industry. NOK Co., Ltd. was founded in 1939. It is one of the earliest oil seal manufacturers in Japan and one of the largest international sealing product manufacturers. It is a Japanese stock listed company with annual sales of 25-30 billion yuan. NOK products occupy more than 70% of the market in Japan and more than 50% of the market in other countries. NOK has always maintained an advanced level in the technical research of the world's sealing industry. Most of the research has not been done by predecessors, turning many "impossible" into "possible". In the late 1950s, the "lubrication theory of oil seals and seals" was first created to explain the sealing mechanism theoretically. The high-temperature and high-pressure resistant polyurethane synthetic rubber developed in the 1960s was awarded a world patent. With its unique rubber material formula, NOK has developed a large number of high-quality sealing products (up to 130,000 types), which can be equipped with different sealing products under different working conditions, pressures, temperatures, speeds, and media levels. The history of NOK is the history of Japan's oil seal manufacturing industry. For more than 60 years, NOK's technical experts have worked with users from various industries to design their sealing systems, track and provide services throughout the entire process of using NOK products, and have accumulated rich experience in the design, manufacture and application of advanced sealing systems in various industries. NOK products are widely used in general industry, automobile industry, motorcycle industry and other industries.

: Freudenberg Enterprise Management (Shanghai) Co., Ltd.

Address: Block D, 24F, No. 720 Pudong Avenue, Pudong New Area, Shanghai

Company website: https://freudenberg.com.cn/

Company Overview

Freudenberg is a global technology group that benefits customers and society in the long run through forward-looking innovation activities. Freudenberg works with partners, customers and research institutions to develop cutting-edge technologies, excellent products, solutions and services for more than 40 different market segments and thousands of applications: including seals, vibration control components, technical textiles, filters, specialty chemicals, medical and modern cleaning products. Continuous innovation, customer orientation, diversification and teamwork are the cornerstones of the Freudenberg Group. For more than a hundred years, the pursuit of excellence, trustworthiness, initiative and responsible behavior have been the core values that Freudenberg has worked hard to practice.

: Garlock Sealing Technology (Shanghai) Co., Ltd.

Address: 1st Floor, Building 5, Hongqiao Jiahui, Lane 928, Shenhong Road, Shanghai

Company website: http://www.garlock.com.cn/

Company Overview

Garlock provides sealing solutions for customers in the global industrial sector. Garlock sealing solutions recognize the potential dangers and urgent needs for personal safety in the chemical industry, while taking into account regulatory compliance, reduced downtime and easy maintenance. Garlock Group designs and manufactures high-performance sealing solutions for various chemical applications, combined with the harsh working conditions of various processes. They can be used in many occasions such as various pumps, valves, reactors, flange joints and pipelines. By providing innovative products and excellent services, the sealing solutions provided can improve plant efficiency and safety. Garlock China was established in January 2008, headquartered in Shanghai, and has an independent production and manufacturing center in Suzhou. At the same time, it has sales offices in Beijing, Dalian, Huizhou, Inner Mongolia, Jinan, and Chengdu. The dealer network covers the whole country, and the Shanghai headquarters provides professional pre-sales and after-sales technical support. The company's solutions are widely used in the following industries: chemical, mining, metallurgy, oil and gas, offshore, medicine, food, valves, papermaking, thermal power, gearboxes, engineering, procurement and construction, etc.

: Othello Sealing Materials (China) Co., Ltd.

Address: No. 319, Xiangjiang Road, High-tech Zone, Shijiazhuang City, Hebei Province 028

Company website: http://www.othcn.com/

Company Overview

The owner of OTHELLO, a well-known brand in the global industrial industry, is USA OTHELLO GROUP LIMITED. Since 2006, it has operated and invested in OTHELLO Sealing Materials (China) Co., Ltd., OTHELLO Fine Chemicals (China) Co., Ltd., and OTHELLO Technology Co., Ltd. in mainland China. It is responsible for the introduction, research and development, production and manufacturing, sales and promotion, installation, commissioning and technical services of sealing materials and fine chemicals in the Chinese market. OTHELLO selects and integrates global high-quality resources to focus on the research and development, production and sales of high-quality products; with the mission of "cherishing life, safe operation and preventing hidden dangers", it has made outstanding contributions to the safe production of the industrial industry. Due to the product quality of OTHELLO, the unremitting efforts of all employees and the recognition of users, the fair value of the OTHELLO brand with full intellectual property rights owned by USA OTHELLO GROUP LIMITED in the industrial industry in mainland China in 2019 was RMB 1.03 billion. OTHELLO's advantages: We select high-quality raw materials and advanced hardware and software processing equipment from around the world, and are committed to the research, production, processing and sales of high-quality sealing products. We have a complete range of sealing products and specifications. Our main products include: modified polytetrafluoroethylene pads and gaskets; special-shaped seals (turning); mechanical seals for pumps; packings; disc springs, etc. OTHELLO's products have been widely used in nuclear power, metallurgy, mining, petroleum, chemical industry, electric power, papermaking, machinery manufacturing, food and medicine, and special industries, and are designated as special products by more and more users. Some of our users include: Qinshan Nuclear Power, Fuqing Nuclear Power, Shenhua Group, Sinopec, PetroChina, CNOOC, Aluminum Corporation of China, China Coal Group, Zhengzhou Coal Machinery Group, Beijing Coal Machinery, Pingdingshan Mining Bureau, Huainan Mining Bureau, Jizhong Energy, Datong Mining Bureau, ENN Group, Wuliangye, Dingxin Group, Hebei Iron and Steel Group, Datang Group, Guodian Group, Huadian Group, China Power Investment, State Grid New Energy, etc.

: Parker Hannifin Fluid Power Products (Shanghai) Co., Ltd.

Address: No. 280, Yunqiao Road, Jinqiao Export Processing Zone, Shanghai

Company website: http://www.parker.com/

Company Overview

Parker Hannifin Corporation was founded in 1918. As a diversified manufacturer of global transmission and control technologies and systems, it provides engineered solutions for various automotive, industrial and aviation markets. The company focuses on customer needs. Parker has unique engineering expertise and a wide range of core technologies to overcome some of the most challenging engineering problems in the world. By establishing partnerships with customers, the company helps them significantly improve productivity and profitability. Parker Hannifin Corporation is a global motion control manufacturing company that provides products and user services. The company's components and systems have more than 1,400 production lines, and are distributed in more than 1,000 industrial and aviation fields in terms of motion control. Parker Hannifin Corporation is a manufacturer that provides customers with hydraulic, pneumatic and mechatronic motion control solutions. The company has a sales network with more than 7,500 distributors serving 400,000 customers around the world. Parker Hannifin has been in China for more than 20 years and established an office in China in 1990. The factories in China include: Shanghai Denison Hydraulic Parts Co., Ltd. (ParkerHannifin), Parker Hannifin Fluid Connectors (Qingdao) Co., Ltd., Parker Precision Hydraulics (Tianjin) Co., Ltd., Shanghai Gumei Sealing Products Factory, Wuxi Legris Factory and other 12 factories. Parker has rich engineering expertise in many fields of transmission and control technology, including: aerospace, environmental control, electric machinery, filtration, fluid and gas treatment, hydraulics, pneumatics, process control, and sealing and shielding. Parker Hannifin China was established in the 1980s and is one of the three foreign joint ventures established earlier since China's opening up to the outside world and foreign direct investment. It has more than 2,000 product lines in China, covering more than 50 markets, providing enterprises with nine major technical solutions and services in aerospace, environmental control, electromechanical, filtration, fluid and gas treatment, hydraulics, pneumatics, process control, and sealing. The product applications and solutions mainly involve diesel engines, wind power generation, shipbuilding, marine exploration, steel, construction machinery, high-speed railways and factory automation. Parker Hannifin China is headquartered in Shanghai.

: Aizhi (Nanjing) Environmental Protection Pipe Connection Technology Co., Ltd.

Address: No. 309, Hanzhongmen Street, Gulou District, Nanjing, Jiangsu Province

Company website: http://www.aigindustries.com.cn/

Company Overview

Aizhi means "the ambition is still high". Aizhi Environmental Protection Pipe Connection Technology Co., Ltd. is a high-tech group management company with "industrial sealing" as its core technology and investment in extended fields. It currently has nearly 1,000 employees and workers. The company's core technology is industrial sealing technology. Through long-term technical accumulation such as independent research and development and international cooperation, the company has systematically developed and introduced a new generation of sealing technology, greatly narrowing the gap between the industry and the international advanced level. These new sealing technologies are not only precise but also complicated. There are thousands of product models and hundreds of thousands of specifications. They are used in various fluid transmission fields such as hydraulic equipment, transmission equipment, bearing protection, and pipeline connection with sealing as the core technology. They have been widely used in municipal, electric power, petrochemical, oil field, metallurgy, automobile, papermaking, cement, non-ferrous metals, mining, ports, ships and other industries. The company has advanced technical innovation capabilities in the industry and is equipped with an internationally professional R&D center and testing laboratory. At present, the company and its affiliated companies have a total of 50 valid domestic patents and 11 valid international patents. There are also a number of patent applications under review, and dozens of innovative technologies are transformed into productivity every year. Since its establishment, the company has developed rapidly with its advanced technical and management advantages, and is committed to the overall improvement of industrial operation and maintenance technology. Sealing is an industry with extremely high requirements for "on-site technical support". Successful application depends not only on the sealing product itself, but also highly on the correct selection, correct installation, and the coordination of on-site equipment. The company's engineers integrate on-site technical support into the product as part of the product. They can be stationed at construction sites across the country around the clock to solve problems in selection, installation and after-sales service, and provide strong technical support for construction users. At the same time, they are equipped with international-level laboratories to conduct precise testing and database analysis of sealing products. The company's administrative, R&D, production, and logistics headquarters are located in Nanjing; there are 21 technical service offices in Beijing, Shanghai, Wuhan, Guangzhou, Nanjing, Jinan, Shenyang, Harbin, Zhengzhou, Chengdu, Hangzhou, Kunming, Shijiazhuang, Taiyuan, Tianjin, Urumqi, Xi'an, Lanzhou, Hohhot, Changsha, Guangxi and other places. More than a thousand on-site sealing technology training sessions are held for Chinese industrial enterprises every year.

: Trelleborg Sealing Solutions (China) Co., Ltd.

Address: Room 2708, Fuxing International Center, No. 237 Chaoyang North Road, Chaoyang District, Beijing

Company website: https://www.trelleborg.cn/zh-cn

Company Overview

Trelleborg is a global leader in engineered polymer solutions, providing sealing, damping and protection solutions for critical applications in harsh environments. Trelleborg's innovative engineered solutions help customers improve performance in a sustainable way. Business philosophy Provides sealing, damping and protection solutions for critical applications in harsh environments. Without polymer materials, also known as rubber and plastics, modern society could not function properly. Machines, tools and accessories require a durable, resilient and tough material to seal, dampen and protect.

: Utech (Suzhou) Sealing Technology Co., Ltd.

Address: No. 25, Nanjiangtianli Road, Jiepu Road, Wuzhong District, Suzhou City, Jiangsu Province

Company website: https://cn.utec.cc/

Company Overview

Utech (Suzhou) Sealing Technology Co., Ltd. is a leader in sealing technology, providing high-quality hydraulic and pneumatic sealing products, engineering plastic components, high-quality sealing materials and a full set of sealing production technology. Utech has rich experience in sealing technology and market, and can provide you with professional services such as sealing product design, sampling, production, testing, and installation. Utech provides you with a full set of modern sealing production solutions, with a maximum outer diameter of sealing products up to 1500mm, and provides you with new processes for CNC machining systems (UT400/UT400E/UT750/UT1500), advanced computer technology, sealing production software, and high-quality sealing materials. Utech supplies all kinds of standard compounds, most of which are produced in the company's own production workshop. The company not only supplies self-produced polyurethane and rubber blanks, but also various thermoplastics (polyoxymethylene, polyamide, tetrafluoroethylene, etc.), as well as cutting-edge engineering plastics such as polyetheretherketone.

: Shanghai Weiwan Sealing Technology Co., Ltd.

Address: Building 1, No. 373, Renqing Road, Pudong New District, Shanghai

Company website: http://www.voneseals.com/

Company Overview

Shanghai Weiwan Sealing Technology Co., Ltd. is a high-tech enterprise based on material research and development, providing customers with hydraulic and pneumatic sealing products and sealing system solutions. After more than ten years of development, the company currently has 318 employees, has established 1 technology research and development center, 2 material laboratories, and 2 sealing function laboratories. It has modern factories in Shanghai and Jiashan, and has domestic leading research and development and production capabilities. Self-developed products have also passed the certification of World Agricultural Machinery, Zhengzhou Coal Machinery Testing and Verification, XCMG Group, Zoomlion Heavy Industry, Sany Group, Hengli Hydraulics and other engineering machinery leading certifications, FESTO global supplier system and other certifications. The company's products are mainly used in hydraulic cylinder sealing systems of engineering machinery such as excavators, cranes, loaders, breakers, and hydraulic support sealing systems of coal machines. The company has been committed to the design, research and development and production of sealing products. It has built a complete sealing product system by combining independent production and product selection and procurement. It has been based on the accurate analysis of customer needs in the industry for a long time, and provides customers with sealing system solutions in the form of sealing packages to meet customers' overall needs for sealing system performance. The company has a hydraulic and pneumatic seal R&D and production system that covers the entire process, including sealing material R&D, material production, product design, and product manufacturing. In terms of sealing materials, the company has the ability to independently develop and produce polyurethane sealing materials, and has independently developed the TecThane® series of polyurethane sealing materials. Some of its technologies have broken the monopoly of foreign sealing products in the domestic mid-to-high-end application market. The company is a Shanghai Science and Technology Little Giant Enterprise, and has been rated as a Shanghai "Specialized, Refined, and New" small and medium-sized enterprise from 2017 to 2021. The company's P2002 hydrolysis-resistant polyurethane sealing materials, HPK piston seals and other projects have been certified as Shanghai's high-tech achievements transformation projects, and have won honors such as Shanghai's technology-based small and medium-sized enterprise technology innovation funds. The company has accumulated a large number of high-quality customer resources by relying on strict product quality control and collaborative product R&D with customers. The company has established long-term and stable cooperative relations with leading domestic enterprises in the engineering machinery, coal and coal machinery industries such as Sany Group, Zoomlion, XCMG Group, Hengli Hydraulics, China Longgong, Zhengzhou Coal Machinery, Shenhua Coal Group, etc., and has won the honors of "Strategic Partner" of Zhengzhou Coal Machinery, "Excellent Supplier, Supplier Alliance Member" of Sany Group, and "Strategic Partner" of XCMG Hydraulics for many consecutive years. It has also established preliminary cooperative relations with internationally renowned companies in the industrial automation industry such as Festo. Through the localization of its products, the company competes with internationally renowned companies in the hydraulic and pneumatic sealing industry such as NOK, Parker Hannifin, and Hallite in the downstream application market, and continuously achieves import substitution. The company will continue to focus on the research and development of basic materials, broaden the scope of basic material research, release production capacity, break through other industries, expand foreign markets, and create a high-tech integrated sealing industry chain integrating research and development, design, manufacturing, sales and branding, provide customers with professional sealing solutions, accelerate the process of domestic substitution in the field of seals, and shape the image of the company's leadership.

: SKF (China) Co., Ltd.

Address: Room 2021, No. 564, South Station Road, Huangpu District, Shanghai

Company website: http://www.skf.com/

Company Overview

SKF is a world-renowned supplier of products, solutions and services in the fields of bearings, seals, lubrication systems and services. In a more effective, productive and sustainable way, friction is reduced, objects can run faster, longer, cleaner and safer, and SKF's vision - a world of reliable operation is realized. SKF operates in more than 130 countries, with 103 production bases, 15 technical centers, and more than 17,000 agents and distributors worldwide. SKF Group is from Gothenburg, Sweden, and is a leading company in the global rotation-related solutions, dedicated to helping all walks of life to operate. With rich industry experience and advanced superior technology, SKF provides customers with products, overall solutions and services covering areas including bearings, seals, lubrication management, artificial intelligence, wireless condition monitoring and intelligent remanufacturing, helping customers effectively reduce friction, extend equipment uptime, improve equipment performance, and help customers improve their competitiveness. At the same time, SKF is still constantly developing new technologies to reduce carbon dioxide emissions during equipment production and operation, and contribute to the construction of a sustainable society. SKF entered the Chinese market as early as 1912 and started its business in China through agents. In 1997, SKF (China) Co., Ltd. was officially established, starting its in-depth development in China. Rooted in China for 110 years, SKF has carried out an end-to-end overall layout in China from production and manufacturing, technology research and development, market entry, and even procurement and supply chain. It plans to achieve a full value chain localization layout of 80%-90% of its business in China by 2025. As a foreign-funded enterprise deeply integrated into China's development, SKF has witnessed the rapid development of China's economy and has been deeply integrated into the development process of China's industry. SKF's development direction is highly consistent with China's national development strategy, and it firmly believes in the two strategic development directions of "smart" and "clean". Strive to use its own advanced technology to promote the intelligent upgrading of industrial industries and green and low-carbon operations, continuously practice good corporate citizenship responsibilities, and inject solid strength into China's development.

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Sealing Ring Information

Information

Sealing Ring Information

What is Sealing Ring

A Sealing Ring, also known as a gasket or O-ring, is a mechanical device used to create a seal between two surfaces to prevent the leakage of fluids or gases. Sealing rings are made from a variety of materials, including rubber, silicone, and metal, and are designed to withstand different pressures and temperatures. They are widely used in various industries, including automotive, aerospace, and manufacturing, to ensure the integrity of fluid systems.

History of Sealing Ring

The concept of the sealing ring dates back to ancient times when simple materials like leather and cork were used to create seals. Over the centuries, with advancements in material science and manufacturing techniques, sealing rings have evolved to become more sophisticated and reliable. Today, sealing rings are an essential component in many modern machines and systems, ensuring the safe and efficient operation of fluid systems.

Purpose of Sealing Ring

Sealing Rings serve multiple purposes:

Prevent Leakage: They create a tight seal between two surfaces, preventing the leakage of fluids or gases.
Ensure Integrity: Sealing rings ensure the integrity of fluid systems, preventing contamination and maintaining the purity of the fluid.
Compensate for Imperfections: They compensate for imperfections in the mating surfaces, providing a reliable seal even if the surfaces are not perfectly smooth or flat.
Withstand Pressure and Temperature: Sealing rings are designed to withstand different pressures and temperatures, ensuring their performance in various operating conditions.

Principle of Sealing Ring

The principle of a sealing ring involves the use of a flexible material that can conform to the shape of the mating surfaces, creating a tight seal. The sealing ring is placed between two surfaces and compressed, filling any gaps and irregularities. The material of the sealing ring is chosen based on its ability to withstand the specific operating conditions, such as pressure, temperature, and chemical compatibility.

Features of Sealing Ring

Some key features of Sealing Rings include:

Material Variety: Available in a wide range of materials to suit different applications and operating conditions.
Customizable Sizes: Sealing rings can be manufactured in various sizes and shapes to fit specific requirements.
High Performance: Designed to withstand high pressures, temperatures, and chemical exposure, ensuring long-lasting performance.
Easy Installation: Most sealing rings are easy to install and replace, reducing maintenance time and costs.

Types of Sealing Ring

There are several types of Sealing Rings:

O-Ring: A circular ring with a circular cross-section, used to create a seal in static and dynamic applications.
Gasket: A flat sealing ring made from materials like rubber, silicone, or metal, used to create a seal between two stationary surfaces.
V-Ring: A V-shaped sealing ring used in rotary applications to prevent leakage of fluids or gases.
U-Cup Seal: A U-shaped sealing ring used in hydraulic and pneumatic systems to create a dynamic seal.
Wiper Ring: A sealing ring designed to wipe and remove contaminants from a shaft or rod, preventing them from entering the system.
Backup Ring: A ring used in conjunction with other sealing rings to prevent extrusion and enhance sealing performance.

Precautions for using Sealing Ring

When using Sealing Rings, consider the following:

Material Compatibility: Ensure the sealing ring material is compatible with the fluids or gases being sealed to prevent chemical degradation.
Proper Installation: Follow the manufacturer's instructions for installation to ensure a proper seal and prevent damage to the sealing ring.
Regular Inspection: Periodically inspect sealing rings for signs of wear, damage, or degradation and replace if necessary.
Temperature and Pressure Limits: Ensure the sealing ring can withstand the operating temperature and pressure of the system to prevent failure.

Things to consider when purchasing Sealing Ring

When purchasing Sealing Rings, consider:

Material: Choose the appropriate material based on the specific application and operating conditions, considering factors such as chemical resistance, temperature range, and pressure rating.
Size and Shape: Ensure the sealing ring fits the specific dimensions and requirements of the application.
Performance Requirements:[!--empirenews.page--] Consider the performance requirements of the application, such as the need for a static or dynamic seal, and choose a sealing ring that meets these requirements.
Brand and Quality: Opt for reputable brands known for their quality and reliability to ensure the performance and longevity of the sealing ring.

Terms of Sealing Ring

Some common terms associated with Sealing Rings include:

Sealing Material: The material from which the sealing ring is made, such as rubber, silicone, or metal.
Sealing Surface: The surface on which the sealing ring is applied to create a seal.
Sealing Pressure: The pressure at which the sealing ring operates, which affects its performance and longevity.
Sealing Temperature: The temperature range in which the sealing ring can effectively operate.
Chemical Compatibility: The ability of the sealing ring material to resist chemical degradation when exposed to specific fluids or gases.
Static Seal: A seal used in applications where the mating surfaces are stationary.
Dynamic Seal: A seal used in applications where the mating surfaces are in relative motion.