This section provides an overview for rotary joints as well as their applications and principles. Also, please take a look at the list of 26 rotary joint manufacturers and their company rankings. Here are the top-ranked rotary joint companies as of November, 2024: 1.MDL Labs, 2.Talco, Inc., 3.Duff-Norton.
Table of Contents
A rotary joint is a joint that can form a flow path for water, air, oil, etc., between a fixed pipe and a rotating shaft. It is sometimes called a rotary joint or swivel joint.
Rotary joints make it possible to supply fluid continuously to a rotating body and circulate the fluid inside. This function can be used to add functions such as cooling and lubrication to the rotating rolls or to supply power source fluid to equipment on the rotating body.
Rotary joints can supply fluids such as water, air, and oil to rotating bodies. They are used to provide cooling and lubrication functions and power sources to rotating bodies.
A typical example of a cooling application is a cooling roll (chill roll). Cooling rolls are used to cool products on the surface of rolls by circulating a refrigerant such as water or oil inside the rolls that convey sheet products, and rotary joints are used to supply the fluid.
In the steel industry and other industries, a rotary joint may be used to supply oil as a hydraulic power source to a cylinder connected to a rotating winding shaft.
Rotary joints consist of a stationary channel, a rotating channel, and a seal to seal these channels. The stationary channel is located on the axis of rotation or the circumference and is always connected to the rotating channel, thus enabling a continuous fluid supply to the rotating body.
Rotary joints are available from those with one port to those with 20 or more ports. The number of ports is set according to the number of fluids to be used. In cooling rolls, which are often used in factories that handle sheet products, water is the only refrigerant used in most cases. In this case, a rotary joint with two ports is used, one for the outward flow and the other for the return flow. Shield machines used for tunneling require the supply of many fluids, such as mud removal fluid, hydraulic oil, and grease. Rotary joints with many ports are specially designed for this purpose.
The material of the rotary joint must be changed according to the temperature and corrosiveness of the fluid being used. When supplying high-temperature fluids, a product with a high heat-resistant seal should be selected, and when supplying highly corrosive fluids, a stainless steel or copper alloy rotary joint should be selected.
*Including some distributors, etc.
Sort by Features
Sort by Area
MDL Labs, established in 1948 and based in Needham, Massachusetts, is a manufacturer of waveguide bends and twists. The company offers various products, such as directional couplers, rotary switches, waveguide shutters, pressure windows, and filters. The products find ideal applications in military, aerospace, electronics, and medical industries. The products are designed to fit in different waveguide sizes and its assemblies are used on unmanned vehicles. Quality check procedures for every product are performed according to ISO 9001-2015 and AS9100D, and equipment calibration is done as per ANSI/Z540.
Kadant Johnson, established in 1930 and based in Three Rivers, Michigan is a manufacturer of rotary pressure joints and fluid handling equipment. The company manufactures and supplies various products, such as jet devices, condensate pumps, siphons, dryer bars, and system controls. The company also offers manufacturing services like testing, repairing, and installing components. Various industries that use the company products are plastic, rubber, chemical, and construction. The R&D department of the company develops and tests the products in natural conditions before installation.
DSTI or Dynamic Sealing Technologies, Inc. is situated in Andover, MN, and is a supplier of engineered fluid sealing and transfer solutions for rotating applications to a wide range of global industries. The company offers Rotary Unions, Electrical Slip Rings, Custom Solutions, and more. The company functions for industries like aerospace, alternative energy, defense, factory automation, food & beverages, and a lot more. The company is accredited with the ISO 9001.2015 certificate. The company is also Honored as a 2023 Top Workplace by the Star Tribune for the Fifth Year in a Row.
Deublin, established in 1945, is a manufacturer of rotating unions and fluid sealing systems, headquartered in Waukegan, Illinois, USA. Their products include rotary joints to facilitate fluid transfer between stationary and rotating components, steam joints for handling high-temperature steam transfer, and siphon systems for enabling fluid movement through gravity or pressure differentials. These products are used in various industries such as printing, packaging, steel, plastics, and food processing. Deublin is certified with ISO 9001 for quality management and ISO 14001 for environmental management.
Duff-Norton is a division of Columbus McKinnon Corp and was originally founded in 1883, now headquartered in Charlotte, North Carolina. Duff-Norton is an automation machinery manufacturer for aerospace, defense, automotive, entertainment, pharmaceutical, food processing, paper, energy, rail/road, and energy supply industries. Duff-Norton manufactures standard and customer-designed screw jacks (mechanical actuators), linear actuators (electro-mechanical actuators), modulator actuators, swivel joints, electric cylinders, rotary unions (rotating joints), acme and ball screws, nuts and rail maintenance equipment to customers globally.
Talco, Inc., established in Ham Lake, MN , in 1995, is a manufacturer of Rotary Joints & Unions. Their product range includes Gun Drilling Unions, Rotary Joints, Rotary Valves and Manifolds, Swivels and Swivel Joints and Coolant Union. The company's products are sued for withstanding high pressures and temperatures while maintaining leak-free performance and avoiding friction during applications. Their products are used in industries such as Electronics and Telecommunications, Automotive, Transportation and aerospace and Defense. The company also provides services including national distribution, product selection, installation, preventative maintenance, troubleshooting, repair and customer service.
Motion Index Drives is a manufacturer of cam indexing machines and rotary index tables established in 1970 and based in Troy, Michigan, USA. The company primarily produces customizable rotary cam indexers for enhancing the precision of automated lines in either single or multi station layouts, and trunnion index drives for rotating or indexing objects in machinery or equipment. It also offers a range of motorized lift and carry systems for lifting, transferring, or placing heavy workpieces. The company’s products are used by clients in industrial automation and robotics integration operations.
Pasternack headquartered in Irvine, California, is part of the Infinite Electronics family of brands, established in 1972 by Murray Pasternack, as a supplier of RF and Microwave components. The company retails various types of products, including connectors, switches, cables, couplers, and filters. They have over 40,000 in-stock products and have partnered with 19 international distributors serving customers in over 35 countries. The company offers contract assembling, where they assemble custom Cables for same-day shipping. The company earned the ISO 9001 certification in 2015 and offers expert technical support and 24/7 customer service.
RFMW has been a supplier and distributor of specialized radio frequency (RF) and microwave components since it was founded in 2003 and is based in California. They provide RF & Microwave and Power Component distribution that focuses on Technical and Supply Chain Solutions and these include Active Devices like Diodes, Transistors, Amplifiers, Control Components, and more along with Passive devices such as Filters, Inductors, Antennas and alike. They also have Power Management and Interconnect/T&M components which help them serve military, aerospace, test, measurement, medical, and commercial markets.
Pascal Corporation, founded in 1974 and based in Hyogo, Japan, is a manufacturer of automation equipment and systems. Its product range includes work clamping systems, gas springs, injection mold machines, and pallet clamps, catering to various industrial applications. Additionally, it offers die casting machines, press machines, auto couplers, and a selection of robot products, including expansion clamps, gas balancers, and tool changers. Its offerings find utility across industries, enhancing manufacturing processes, ensuring precision, and optimizing efficiency in workholding, and material handling. Since 1999, the company has maintained ISO9001 certification for its quality management system.
BL AUTOTEC, founded in 1987 as a member of the Bando Chemical Co., Ltd. group with headquarters in Japan, is a manufacturer of robotics and automated equipment and components. The company's products include automatic tool changing components for robotics, rotary joints developed for positioners and turntables, couple joints used to connect and disconnect pneumatics and electric signals, and lock-up RCC devices commonly used for mounting tools to robotic arms. BL AUTOTEC also supplies a range of tools that include torque sensors, deburring tools, and finishing tools.
Nihon Pisco Co. Ltd., founded in 1976 and based in Nagano, Japan, is a manufacturer and distributor of pneumatic equipment and is ISO 9001 and ISO 14001 certified. The company stocks various products like valves, actuators, and vacuum accessories used in several industries, including semiconductor, medicine, and rechargeable battery. The company started selling push-in fitting for pneumatic piping in 1977 and launched the industry’s first push-in fitting built-in type speed controller in 1981. In 1993, it launched a few products, including a quick exhaust valve, a digital pressure sensor, and a vacuum generator with a digital pressure sensor.
IHARA SCIENCE CORPORATION, established in 1941 and headquartered in Takanawa, Minato ward, Tokyo, is a manufacturer specializing in bite-type tube fittings and other high-pressure fittings designed for hydraulic applications. The company offers a wide range of product portfolios including fittings, pipes, valves, and related components. These quality products serve critical roles in various industries, including railway vehicles, semiconductor manufacturing, measurement instruments, construction machinery, and more. The aim of the company is to provide optimal piping systems tailored to meet the specific needs and demands of diverse applications.
Simran Flowtech Industries, established in 2004 and based in Haryana, India, is a manufacturer of engineering and mechanical devices under ISO 9001-2000 certification. The company offers various products, such as Hydraulic floor jacks, hydropower equipment, hydraulic cylinders, rotary unions, and worn-gear screw jacks, and all these products are used in different industrial applications. The company also provides Automatic Guage Control (AGC) and rollover cylinders for use in cold rolling mills. Its products can be used in various other applications, including tube mills, machine tools, hydro dam gates and cement plants.
FLUIDEN is based in Gujarat, India is a manufacturer of rotary unions. The company-made components are used in different applications such as air vacuum, oil and coolant, thermal oil, and other custom applications. Each rotary union is manufactured to meet the application's needs and operate at the correct pressure, speed, and media type. The company supplies its rotary unions to textile, rubber, steel, and chemical plants. From raw material procurement to final product shipment, the components are tested in every phase. The components are made based on the received technical drawings and customer information.
Airmax Pneumatics Ltd, established in 1997 and headquartered in Ahmedabad, Gujarat, India, is a manufacturer and supplier specializing in pneumatic solutions. The company's core effort lies in designing and producing a range of pneumatic components, including air cylinders, valves, fittings, and pneumatic systems, crucial for efficient fluid power automation. As a key player in the pneumatics manufacturing, Airmax Pneumatics Ltd's products find applications in various sectors such as manufacturing, automation, and industrial processes. With a vow to quality, the company subsidizes to streamlined operations and control, solidifying its position as an important provider of advanced pneumatic solutions.
GAT, established in 1978, is a manufacturer and supplier providing solutions for industrial automation and control systems, headquartered in Geisenheim, Germany. Their product range includes rotary unions, torsion motors, air bearings, slip rings, and combine systems (rotary unions & slip rings). These facilitate fluid transfer, precise motion control, electrical connectivity, and frictionless movement, contributing to efficient operations in industrial automation and control systems. These products cater to industries such as automotive, medical industry, oil and gas, marine industry, and construction machinery and cranes. GAT holds a certification such as ISO 9001:2015.
RF-Lambda, founded in 2003 and based in San Diego, California is a manufacturer of RF components. The RF products developed by the company are used in RF broadband and power solutions. The company holds ISO and ITAR registrations. All the RF components produced are used by industries such as military, aerospace, and commercial applications. Other products are manufactured by RF-Lambda, such as low-noise amplifiers, RF switches, phase shifters, and attenuators. Every product of this company goes through quality assurance by being compliant with MIL-STD- 883/810/202 standards.
Maier America, established in 1925 and based in Norcross, Georgia, is a manufacturer of rotary joints. The company has been supplying the produced joints to different sectors such as pharmaceuticals, chemicals, plastic, and plant building companies. The company abides by DIN ISO 9001 standards to produce its products, and the European Explosion Protective Directive approves all its rotary joints. The company procures materials to produce the joints from audited suppliers and develops them according to customer requirements.
RIX, established in 1953 in Japan, is a manufacturer and supplier of automobiles and aerospace products. The company’s product range includes a diverse lineup of automobiles, including compact cars, SUVs, and sports cars, catering to various segments of the automotive market. Additionally, Subaru produces aerospace components, further showcasing its engineering expertise. The company aims to provide technologically advanced vehicles that offer a blend of driving pleasure and reliability. With a history of producing vehicles that stand out for their all-wheel-drive technology and rugged design, the company continues to make its mark in the automotive and aerospace industries.
MOFLON, established in 1989 and headquartered in Suzhou, China, is a manufacturer and supplier of rotary unions (rotary joints) for a wide range of applications. The company’s product range includes a diverse array of rotary unions such as electrical slip rings, hydraulic rotary unions, pneumatic rotary unions, and optical rotary joints. These solutions find applications in industries including automation, packaging, printing, and robotics. The company’s emphasis on creativity and reliability is evident in its quality rotary unions that ensure seamless fluid and electrical connections in rotating systems.
Jinpat Electronics Co. Ltd., established in 1996 and headquartered in Shenzhen, China, is a slip ring designer, manufacturer, and supplier. The company's products include a wide range of rotating electrical connectors, signal slip rings, and rotary union joints. It also offers the production of custom slip rings, with experience in the manufacture of explosion-proof, optical fiber electric, and high-current slip rings. These products are used in rotary devices, such as electric motors and generators, to transfer electrical power and signals between stationary and rotating parts of the machine. The company serves wholesale buyers and also offers full OEM and ODM services.
SenRing Electronics Co Ltd, founded in 1998 in Shenzhen,Guangdong, China, is a Chinese supplier of electrical slip rings, signal slip rings, rotary unions, capsule slip rings, and custom products. This ISO 9001:2008 certified company works in close collaboration with research institutes and major enterprises to not only offer industrial slip rings to institutions and businesses, but also customize various slip rings to suit the client's specific needs. The company serves industries such as Aerospace, Defense, Factory Automation, Food and Beverage, Medical, and Heavy Equipment, among others.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | MDL Labs |
8.0%
|
2 | Talco, Inc. |
7.1%
|
3 | Duff-Norton |
7.1%
|
4 | Simran Flowtech Industries |
6.2%
|
5 | DSTI |
5.7%
|
6 | RF-Lambda |
5.1%
|
7 | Kadant Johnson |
4.8%
|
8 | Maier America |
4.8%
|
9 | FLUIDEN |
4.2%
|
10 | Deublin Company |
4.2%
|
Derivation Method
The ranking is calculated based on the click share within the rotary joint 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 | 9 | 40.9% |
Japan | 5 | 22.7% |
India | 5 | 22.7% |
China | 2 | 9.1% |
Germany | 1 | 4.5% |
5 products are listed.
TB Global Technologies Co., Ltd.
130+ people viewing
Last viewed: 13 hours ago
[Features] ■ Exclusive special packing ・ Designed to ensure that the rotation resistance from low pressure to high pressure is reduced and sealed ...
ANEST IWATA Corporation
20+ people viewing
Last viewed: 17 hours ago
■ Use ・ It is a product aimed at air pressure management and painting efficiency. ・ By adopting an L -type rotary joint, the entanglement of the ...