This section provides an overview for shock absorbers as well as their applications and principles. Also, please take a look at the list of 30 shock absorber manufacturers and their company rankings. Here are the top-ranked shock absorber companies as of November, 2024: 1.mPower, 2.Deschner Corp., 3.Stock Drive Products/Sterling Instrument - SDP/SI.
Table of Contents
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A shock absorber is a device that reduces vibrations in machinery and buildings.
In addition to suspensions, passenger cars and motorcycles use shock absorbers to reduce the impact from the ground. Springs attached to shock absorbers, absorb the shock and provide a comfortable ride.
If shock absorbers fail due to aging, it is very dangerous because their ability to absorb shock decreases, making it difficult for the brakes to work. It may also make it difficult to turn corners.
Shock absorbers are mainly used in vehicles.
The following are examples of applications of shock absorbers:
These vehicles are equipped with shock absorbers to absorb shocks traveling on the ground. Telescopic cylinder shock absorbers are used for passenger cars, while height-adjustable shock absorbers with variable spring positions are sometimes used for motor sports vehicles with low vehicle height.
Shock absorbers called oil dampers or seismic isolation dampers are sometimes used for vibration control of houses and other structures.
Shock absorbers can be rotary or telescopic, and telescopic shock absorbers are often used in vehicles.
In a telescopic shock absorber, the shock absorber is built inside the spring. The cylinder receives the energy of the spring, which vibrates upon impact, and absorbs the vibration by moving slowly within the hydraulic system.
At this time, the vibration energy is converted into heat energy, which causes the shock absorber to heat up. Telescopic shock absorbers can be further classified into two types: mono-tube and twin-tube.
Mono-tube shock absorbers are simpler in construction than twin-tube shock absorbers. A piston moves up and down inside a partially oil-filled cylinder by means of a rod that transmits the vibration of a spring. Hydraulic pressure is applied to the piston, which dampens vibration and absorbs shock.
The mechanism of the twin-tube is almost the same as that of the mono-tube. An additional cylinder with an oil valve is installed outside the mono-tube cylinder, making it a stronger design than the mono-tube. Twin-tube systems are installed in many passenger cars.
Regular maintenance is necessary because oil leakage due to shock absorber deterioration affects the mileage and the rate of deterioration.
The general procedure for selecting a shock absorber is as follows:
The items that must be checked when selecting a shock absorber are the maximum mass, maximum velocity, and maximum thrust of the impacted object. Care should be taken to remember to add this to the total energy, especially if thrust is generated by free fall or cylinders.
Equivalent mass is also known as the weight effect value, and each product has its own allowable range. If it exceeds the allowable range, a high reaction force will be generated at the end of the Shock Absorber's stroke, resulting in poor shock absorption. If the equivalent mass exceeds the allowable range described in the product catalog, another Shock Absorber should be considered.
Shock absorber performance deteriorates with age. As the performance of a car's shock absorber deteriorates, the tires and brake pads will wear out faster. If the car continues to be driven as it is, the shock absorber itself may break or leak oil.
The durability of a car's suspension is generally 100,000 km or 10 years. It is also said that the recommended replacement period for shock absorber is 80,000 km. However, the lifespan depends on the roads used and the way of driving.
Highways and mountain roads place a greater load on the car and tend to deteriorate shock absorbers more easily. Unlike tires, for which there is a correlation between mileage and rpm, shock absorbers are also characterized by the fact that it is difficult to determine a definite replacement time. Therefore, it is important to determine the timing and perform regular maintenance.
*Including some distributors, etc.
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Plascore, Inc. headquartered in Zeeland, Michigan, and has sales offices throughout the world, are manufacturers of honeycombs of various metal and plastic materials. The portfolio of the company consists of honeycombs made from aluminum, aramid fiber, stainless steel, thermoplastic, and more. The company also creates modular cleanroom systems and energy absorbers. Honeycomb Core of the company is the OEM choice for manufacturing composite boards and assemblies used in automotive, rail, aviation, marine, and exhibition markets. The company is accredited with AS9 100 Certification, ISO 14001 EMS Certification, ISO 9001 Certification, and many more.
Airpot is an American ISO 9001:2015 certified manufacturer of pneumatic industrial products that was established in Norwalk, Connecticut in 1957. The company primarily produces air cylinders for providing linear motion, air dashpots for providing precise motion control, and snubbers that function as a cushioning medium for shock protection. It also offers custom manufacturing services for unique client projects. The company chiefly serves the aerospace, industrial processing, and scientific R&D sectors. Its notable clients include the European Council for Nuclear Research (CERN) and Fresenius.
Deschner Corp. is a manufacturer of industrial motion control devices established in 1960 and based in Los Angeles, California. The company produces various shock absorbers and speed regulators with a range of applications including drilling, window and door manufacturing, food processing, and industrial equipment. Their products employ a patented seal design making them leak-proof via utilization of their CUSHIONEER brand adjustable leak-proof shock absorber. Deschner Corp. also offers clients different mounting options and customization services for projects with unique motion control requirements.
mPower, established in Erie, PA in 1946 is a manufacturer of machinery parts such as Quick Change Systems, Base & Fixture Plates and Tooling Columns. The company's product portfolio includes Gears and Gearboxes, Shafts Spindles, Bearings and Bushings that are used in industries such as Aerospace, Military/defense, Medical, Food processing/Farming & Agriculture. The company has a manufacturing facility that is 50,000 square feet and includes engineering, and administrative areas. The company also has a global distribution network and a customer support center.
SDP/SI was founded in 1950 and is situated in New Hyde Park, New York. SDPP/SI is a manufacturer of precision gears and high-quality mechanical components used in the aerospace, industrial manufacturing, medical technology, and robotics fields. The company manufactures parts in a variety of materials including alloy steel, stainless steel, bronze, brass, nylon, and titanium. The company also provides coating services such as heat treating, zinc plating, and painting. Additional custom options are available including manufacturing to customer drawings and specifications.
Bansbach easylift is a manufacturer of motion control solutions, since 1919 producing a wide range of lockable gas springs, dampers, shock absorbers, and connecting parts. Based in Melbourne, Florida, Bansbach easylift has ISO 9001:2008 certification, ITAR Registration, and EASA Part 21G Form 1 certification. The company uses environmentally friendly materials along with stringent QC measures for consistent and accurate production. Their products are applied in diverse range of industries including automotive, furniture, machinery, medical, and aerospace.
Ace Controls, Inc. is an American manufacturer of automation, motion, and vibration control products established in 1963 and headquartered in Farmington Hills, Michigan. The company produces various industrial shock absorbers, gas or air springs, vibration dampers, and hydraulic feed controls. These improve the production speed, efficiency, noise, and safety of industrial facilities. Ace Controls primarily serves clients in the robotics, material handling, automotive, and packaging sectors. It also provides consultation, engineering, and fabrication services for unique customer projects.
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.
Tech Products Corp. established in Miamisburg, Ohio in 1973 is a manufacturer and distributor of vibration, shock, and noise control materials operating out of a converted Sinclair Gas Station. Their product range includes Ring and Bushing, Snubbing Washers, Spring Mounts, Stable Flex Mounts, and Stud Mounts. The company's products are used in industries including construction, automotive industrial machinery, and transportation. In 1997, Tech Products Corporation moved a few miles away to its current 26,000 sq ft location in Miamisburg, OH to provide extra molding capacity, manufacturing flexibility, and warehouse space.
Isotech was founded in 182 and is headquartered in Hatfield, Pennsylvania. Isotech is a manufacturer’s representative and distributor of proprietary mechanical and electromechanical products to the industrial, medical, and military OEM and in-plant markets. Some of Isotech’s products include linear slide assemblies & rail sets, shock/vibration mounts & pads, linear bushings & shafting, telescoping lifting columns, positioning stages, air bearings, gas springs/air cylinders, motorized positioning tables, laser marking cutting systems, foamed aluminum/metal/composites, stamped metal, noise control products, and belt driven actuators.
Established in 1974, Enterprise Rubber manufactures and distributes custom rubber parts throughout the country. The Ohio-based company specializes in commercial-grade rubber products specially focusing on vibration isolation mounts, tarp straps, and specialized products such as rubber shaker balls, flex sock connectors, oil savers, and swab cups. Enterprise Rubber offers quality rubber products and customer services to clients in various industries, including transportation, construction, agriculture, and manufacturing. The company leverages on the local talent to deliver the quality products.
Takachiho America, Inc., founded in 1952, is a supplier of motion control solutions and business development services in Itasca, IL. The company has been a Takachiho Koheki Co., Ltd subsidiary since 2015. The mechanical components supplied include dampers, Conston springs, cyclonic filters, bacteria sterilizers, and level indicators used in home appliances, chip conveyors, automotive interiors, CNC machines, and medical equipment. The company offers business development services such as market research, opportunity identification, technology evaluation, and alliance partnership assistance.
Fabreeka International is a global supplier specializing in shock control and vibration isolation for aerospace, automotive, refineries, and mining, as well as various other industrial environments. The company was incorporated in 1918, is headquartered in Stoughton, MA, and has been a member of the STABILUS group since 2016. Fabreeka is also affiliated with ACE Controls and Tech Products. Additionally, in 2016, the company announced its ISO 9001:2015 certification. The company’s line of products includes expansion bearing, foundation isolation, levelers, pneumatic isolation, and shock and vibration pad. Fabreeka also provides several application services, including building and construction, testing, and transportation.
Airtac International Group, founded in 1988 and headquartered in Taiwan, is a manufacturer and supplier of transmission equipment. The company provides a range of products, including control components, preparation units, as well as fittings and tubing. These products are designed for use in fields such as machinery manufacturing, environmental protection, and industrial automation. The company also offers services like a comprehensive after-sales service system, a convenient supply chain, and timely delivery. Its core values are centered on profit sharing, fostering mutual development, and embracing responsibilities.
RINGFEDER Power Trans-Mission GmbH, established in 1922 in Germany, is a manufacturer in niche markets for drive and damping technology. The company offers users worldwide outstanding locking devices, damping solutions, and coupling systems for functionality and durability requirements in various industries. It is appreciated for its customer-specific, application-oriented solutions, which ensure optimum facility operation for its customers. It is a global major player in niche markets for drive and damping technology. Under its strong brand RINGFEDER, it develops, manufactures, and supplies superior shaft-hub connections, damping components, couplings, brake systems, and etc.
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.
ACE Controls Inc. (ACE Stoßdämpfer GmbH), founded in 1963 and currently a subsidiary of Stabilus S.A., is a manufacturer with dual headquarters situated in Farmington Hills, Michigan and Langenfeld, Germany, specializing in industrial damping technology. The company's product portfolio include automation control tools like dampers and shock absorbers, as well as motion control tools such as gas springs and hydraulic dampers. Vibration control tools like vibration-isolating pads and low-frequency pneumatic leveling mounts are also part of its offerings. These products cater to various industries, including automotive, construction machinery, health and medical, mechanical engineering and automation, as well as power plants and grids.
Miki Pulley Co., Ltd., founded in 1939, is a manufacturer and provider of solutions for power transmission and control problems, headquartered in Kawasaki City, Japan. They manufacture various products essential for all industries, including couplings for high-precision power transmission, electromagnetic clutches and brakes for power transmission when energized, and speed changers and reducers for controlling the speed of machinery. They also offer inverters, linear shaft drives, rotation speed indicators, torque limiters, and ROSTA rubber springs.
Fuji Latex was founded in 1949 and is a manufacturer of latex products based in Chiyoda, Tokyo, Japan. The company is split into two division, the Motion Control Technology and Healthcare products. Motion Control Technology division produces shock absorbers, rotary dampers, and vane dampers. These products are used in various applications such as industrial systems, automotive interiors, and healthcare. Healthcare division manufactures various latex products such as condoms, probe covers, and lotion. The company has obtained the vertifivcation of ISO 9001, ISO 14001, and ISO 13485.
Festo Corporation, established in 1925 and headquartered in Esslingen, Germany, is a supplier of automation technology and technical education and is ISO 9001, ISO 13485, and ISO14001 certified. It has around 33,000 catalog products, customized components, and ready-to-install solutions, including grippers, motors, and sensors used in industrial and process automation. The company won the German Future Award in 2010 and serves 300,000 customers worldwide, while its education division provides training solutions for 56,000 industrial companies and educational institutions. It registered €3.81 billion in the 2022 financial year and is available in around 60 countries, with 2,600 patents worldwide.
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.
ITW Motion - Global is a manufacturer of air, linear, small and large rotary and spring hinge dampers for the automotive, furniture, household appliance and vehicle industries. The company is located in USA and founded in 1912. The company specialize in the design and manufacture of a diversity of viscous dampers, air dampers and latches. ITW Motion's unwavering adherence to innovation is evident in its continuous development of state-of-the-art technologies that optimize efficiency, accuracy, and reliability in various applications. Their solutions find utility in diverse sectors such as automotive, aerospace, medical, packaging, and beyond.
John Evans' Sons established in New Haven, Connecticut, in 1850 is a manufacturer of constant force springs, torsion springs, and spring-powered reels/ Their product range includes helical springs, vibration isolators, wire forms, stampings, and mechanical assemblies. The company has a global distribution network, and their products are used in industries such as aircraft & aerospace, medical devices, window manufacturing, and electric motors. In 1967, the company changed ownership, and moved 20 miles northwest of Philadelphia, to Lansdale, Pennsylvania, its current office.
Koba Co. Ltd., established in 1993 and headquartered in Korea, is a manufacturer and supplier of shock absorption, anti-vibration, and rate control solutions. The company's products include hydraulic buffers, viscoelastic buffers, and gas springs catering to aerospace, port facilities, and heavy industries. Its KMA series features a mini, adjustable design with 12-step damping force control, solving piston shooting issues without requiring a stop collar. Its KMS series offers smooth impact object stopping with self-compensating variable orifice technology. The company solutions find applications in automation equipment, conveyor systems, and peripheral equipment.
DAB Technology, based in Singapore, has been a supplier and a distributor of vacuum solutions since its incorporation in 1997. Its product range includes palamatic tube lifters, crane systems, dabhandy lifting solutions, and various vacuum components like ejectors, suction cups, and pumps. The company also provides industrial cleaning tools, safety wear, and cleaning equipment. The company is the sole distributor of international brands such as Palamatic, DVP, Hovmand, FBK and more in Asia Pacific, and operates from several branches in Malaysia, Thailand, China, Indonesia, and Vietnam.
Bansbach Easylift of N.A., established in 1919 and headquartered in Melbourne, Florida, is a distributor of motion control systems, including gas springs, dampers, and linear actuators. The company’s products include gas springs, linear actuators, and dampers, serving automotive compartments, household cabinet hinges, and heavy-duty industrial shock absorption in elevators. Its maintenance-free dampers and shock absorbers absorb impacts, decelerate loads, and prevent equipment damage. With designs suitable for aerospace, automotive manufacturing, and material handling industries, its products ensure smooth speed and motion control. The company also provides application engineering, quick quotation turnaround, and live chat assistance services.
Miner Elastomer Products Corp., founded in Geneva, IL, in 1985 is a supplier of shock absorption components and thermoplastic elastomer energy management systems. The company's product portfolio includes Mining Truck Struts, Heavy Duty Pads, Mining Shovel Components, Sucker Rod Cushions, and Blast Hole Roller Bearings. They serve markets including Automotive, Transportation, Mining, Appliance, and Sporting Goods/Exercise Equipment. The company has a national distribution network and a customer and technical support center.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | mPower |
11.5%
|
2 | Deschner Corp. |
9.1%
|
3 | Stock Drive Products/Sterling Instrument - SDP/SI |
9.1%
|
4 | Plascore, Inc. |
8.7%
|
5 | Bansbach Easylift |
7.7%
|
6 | Airpot Corporation |
7.3%
|
7 | ENIDINE |
3.2%
|
8 | ITW Motion - Global |
3.1%
|
9 | Ace Controls, Inc. |
3.0%
|
10 | Tech Products |
2.9%
|
Derivation Method
The ranking is calculated based on the click share within the shock absorber page as of November 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 | 14 | 66.7% |
Germany | 3 | 14.3% |
Japan | 2 | 9.5% |
Taiwan | 1 | 4.8% |
Singapore | 1 | 4.8% |