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This section provides an overview for air springs as well as their applications and principles. Also, please take a look at the list of 16 air spring manufacturers and their company rankings. Here are the top-ranked air spring companies as of December, 2024: 1.Dayton Air Control Products, LLC, 2.Hendrickson, 3.Compact Automation Products.
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Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
An air spring is a shock-absorbing device that uses compressed air and rubber elasticity. It offers higher damping capacity compared to metal springs and maintains damping force consistently under varying loads. These springs are durable, with excellent shock and vibration resistance, and are adaptable to load fluctuations, though they are costlier and more complex in design and maintenance than metal springs due to components like air compressors and air piping.
Air springs are widely used in various applications, particularly in vehicle suspensions and seismic isolation devices for buildings:
Employed in high-end vehicle suspensions for superior ride quality, they are also used in cargo transport vehicles and bullet train cars. Air springs provide enhanced comfort and NVH (noise, vibration, and rattling) performance.
In dual rear axle vehicles, they are used to increase drive wheel surface pressure in challenging conditions like snowy or muddy roads by lifting the rear axle.
Used in building foundations or structures to absorb earthquake vibrations and ensure stability.
Air Springs function by changing air pressure and volume in a special rubber bag. The stiffness of the spring is adjusted by varying the compressed air amount, providing flexibility and vibration absorption during operation.
Challenges include potential rupture under overload, air leakage due to deterioration, and displacement risks during rapid damping. In vehicle suspensions, air leaks from moisture intrusion are common.
There are two primary types of air springs based on the rubber film and metal fittings design:
This type uses a rubber diaphragm that expands or adjusts pressure according to the load, enhancing ride comfort and vehicle stability.
Employing rubber bellows (corrugated), these are commonly used in large vehicles like trucks and buses, offering durability and adaptability to various loads.
*Including some distributors, etc.
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Compact Automation Products LLC., founded in 1975, is an American manufacturer based in Westminster, South Carolina, specializing in compact linear actuator solutions. Compact offers a wide range of products that are designed to maximize performance while minimizing space requirements. Some of the company’s product offerings are standard and custom pneumatic and hydraulic cylinders, along with related accessories. Their Turn-Act product line, which holds 12 granted patents, provides rotary actuators and multi-motion devices. These products find applications in various industries, including automation, robotics, conveyor systems, pharmaceutical, and food and beverage.
King of the Road, based in Dayton, Ohio, since its establishment in 1953, operates as a manufacturer and supplier in the automotive sector, specializing on suspension solutions. The company stands out in creating cutting-edge automotive suspension systems, offering a diverse range of air suspension components and kits. This recognition of superior quality and innovation is associated with its collaboration with Dayton Air Suspension, a seasoned entity. Acquiring ISO 9001 certification reflects its adherence to maintaining standards and meeting customer needs.
Established in 1913, and based in Chicago, Hendrickson is a manufacturer of trucks equipped with cranes, which were used to haul stone and other building materials. The company was purchased by an automobile part manufacturing company in the year 1978 and expanded its business by providing steel leaf springs, bumpers, and stamped components for the heavy-duty transportation market. Hendrickson produces suspension systems and components for the heavy-duty vehicle industry that includes trucks, trailers, buses, and recreational motor vehicles.
Enidine was established in 1966 and is headquartered in Orchard Park, New York. The company is a diversified manufacturer of highly engineered crucial components and customized technology solutions for industrial end-markets in energy, infrastructure, electronics, aerospace, and transportation industries under the brands of Aerospace Controls, Conoflow, Enidine, Neo-Dan, and Turn-Act. The company’s five product segments are Industrial which designs shock absorbers, Infrastructure which designs viscous and seismic dampers, Aviation which designs rate controls, Defense which creates custom elastomers, and Rail, which creates specialty shock absorbers.
Dorman Products, established in 1918 with headquarters in the USA, is a manufacturer and distributor of automotive aftermarket spare parts. The company's product portfolio includes intake and exhaust manifolds, automotive cooling products, harmonic balancers, fluid lines, fluid reservoirs, connectors, and many more. Dorman Products' products are sold under the Dorman brand and its sub-brands: OE Solutions, Help!, Conduct-Tite, and HD Solutions, through aftermarket retailers, regional and local warehouse distributors, specialty markets, and salvage yards. The company's replacement and upgrade parts are used in the motor vehicle aftermarket industry, serving vehicles that include passenger cars and light-, medium-, and heavy-duty trucks.
Applies Industrial Technologies, founded in 1923 and based in Cleveland, Ohio, is a supplier and distributor of bearings, seals, power transmission, belts, and gearboxes. The company offers products such as ball bearings, bulk V-belting, bevel gear reducers, bearing isolators, and hydraulic seals. The products are essential for maintaining and operating machinery and equipment, ensuring efficiency and longevity. These products cater to industries such as manufacturing, construction, automotive, aerospace, mining, and agriculture.
LittleMachineShop.com, established in 2000 and based in the United States, is a reputable online supplier catering to the machining and metalworking community. They specialize in providing a wide range of quality tools, equipment, and accessories. LittleMachineShop.com's foundation rests on empowering hobbyists, machinists, and small businesses with first-class products and resources, fostering skill development and innovation. Their catalog boasts essentials like mini lathes, mills, and tooling kits, enabling precision engineering and craftsmanship across various industries.
Weforma Dämpfungstechnik GmbH, founded in 1980, is a manufacturer based in Stolberg (Rheinland), Germany, developing machine building components. The company offers a range of deceleration technology, including cylinders, rotary dampers, and speed controls. It also provides various shock absorbers for industrial, heavy-duty, and elevator applications. It further offers air springs, metal cushions, and polyurethane (PUR) buffers for vibration isolation. Certified with ISO 9001:2015, the company operates representative offices for trading in Austria and Italy.
Established in 1964, KURASHIKI KAKO CO., LTD is a manufacturer that specializes in producing and selling of automotive rubber parts, as well as anti-vibration, soundproofing, cushioning instruments, and equipment for industrial use. The company obtained ISO9001 certification in 1998 and continues to provide services for product development, evaluation/analysis, and research and development. Along with its range of products, KURASHIKI KAKO CO., LTD offers various items, including anti-vibration table/stage, building equipment components, flexible silencers, and other related products.
Continental Automotive World (CAW) is a German manufacturer of passenger as well as industrial vehicle systems and related products that was established in 2012 as a subsidiary of Continental AG. Based in Hannover, Lower Saxony, the company offers products and solutions for various vehicle classes, including powertrain technologies, brake systems, sensors, cameras, and displays. It also develops and produces driver assistance solutions, such as vehicle-to-everything communication, cybersecurity, and artificial intelligence systems. CAW products are primarily used by automotive manufacturers, mobility service providers, and public authorities in Germany and overseas.
ContiTech, established in 1871 with operations in more than 40 countries, is a manufacturer of rubber and plastic products serving the machine and plant engineering, mining, agriculture, and automotive markets. The company has numerous products, including air spring systems, anti-vibration systems, coated fabrics, compensators and connecting pipes, and conveyor belt systems. ContiTech, with over a century of experience, provides custom aggregate solutions to clients, including asset inventory management, assembly and installation tools, conveyor belt system consulting, and custom production.
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.
Mason Industries, Inc. is a manufacturer of expansion joints, mounts, and bases, specializing in HVAC engineering services. It was founded in 1945 and is headquartered in Hauppauge, New York. Some of the products offered include architectural spring mounts, mounts & pads, hangers, seismic mounts & restraints, as well as bases & rails, and stainless steel products. These products are used to mitigate ground vibration and noise in buildings located near railroads, subways, heavy traffic, or industrial areas. The company holds several certifications, including the ISO 9001 certification.
Bilz Vibration Technology AG, established in 1985 and located in Leonberg, Baden-Württemberg, Germany, is an ISO 9001-certified manufacturer specializing in vibration insulation and machine installation technology products. The company offers leveling elements such as machine feet for vibration-isolated machine installation, insulation pads for vibration damping or insulation, and leveling wedges for vibration damping and machine leveling under high load conditions. It also offers air springs, mechanical level control systems, and electronic level control systems for improving dynamic load response. The company mainly serves clients in industrial manufacturing and automation operations.
MiMotion was founded in 1946 in Birmingham, Alabama and today operates under Genuine Parts Company. The company operates as a distributor and supplier of custom parts for both maintenance repair and operating replacement part market and the OEM market. The company’s product line includes many types of products including abrasives, chemicals & lubricants, hand & power tools, hose & fittings, and process pumps & equipment. The company also provides maintenance repair and operating replacement parts as well as OEM parts ensuring compatibility with existing customer operations.
Fortpro USA, founded in 2006, is a researcher, developer, and distributor of truck parts in Miami, Florida, USA. The company produces air brake components, electrical components, drive lines, engine parts, air compressor parts, and accessories such as blinker bars, nut covers, amber reflectors, aluminum plates, and round air horns for transportation, machinery, and automotive industries. The company sells products to more than 25 countries and is expanding to the Middle East and South America.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Dayton Air Control Products, LLC |
15.0%
|
| 2 | Hendrickson |
8.6%
|
| 3 | Compact Automation Products |
8.4%
|
| 4 | Dorman Produts |
8.2%
|
| 5 | KURASHIKI KAKO CO., LTD |
8.2%
|
| 6 | ENIDINE |
7.6%
|
| 7 | Motion Industries, Inc. |
5.8%
|
| 8 | Weforma Dämpfungstechnik GmbH |
5.4%
|
| 9 | Applies Industrial Technologies |
5.4%
|
| 10 | Mason Industries, Inc. |
5.2%
|
Derivation Method
The ranking is calculated based on the click share within the air spring 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 (%) |
|---|---|---|
|
United States of America
|
7 | 58.3% |
|
Germany
|
4 | 33.3% |
|
Japan
|
1 | 8.3% |
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