Business Wire

The Next Evolution of the JOST KKS Automatic Coupling System: the KKS-U Connector


In April 2021 JOST introduced the revolutionary KKS automatic coupling system. It enables the driver to couple and uncouple the semi-trailer via remote control – automatically, safely and quickly. Climbing out of the cabin, cranking down the landing gear and manually connecting the spiral cable, air and brake connections are all a thing of the past. Now JOST presents the latest development of the KKS: the KKS-U Connector which is retrofittable to existing trailers that already are on the roads of this world.

This press release features multimedia. View the full release here:

To view this piece of content from, please give your consent at the top of this page.

The KKS-U Connector is easily retrofittable to trailers that are already in use. (Photo: JOST)

Coupling and uncoupling a trailer is still a lengthy, expensive and hazardous procedure. The truck driver has to be aware of many different things, each of which are time-consuming and pose a hazard to health and safety. As the global market leader for fifth wheel couplings and landing gears, JOST is providing a smart solution for the future of coupling with its KKS automatic coupling system. The KKS 42 fifth wheel coupling, Modul E-Drive electric landing gear, sensor coupling system, 3-sensors, LubeTronic automatic lubrication system, KKS remote control and the ISO 13044-2-certified KKS connector all combine to form an innovative system for the coupling process.

KKS-U Connector retrofittable to existing trailers

Until now the KKS was a solution for mixed fleets and new trailers. JOST has now further developed the system and is introducing the new KKS-U Connector to the market. Fitted to the underside of the trailer, the KKS-U Connector is an alternative installation variant and enables fleet operators to equip existing trailers easily with the KKS. It connects all the mechanical, electric, and air connections between the truck and trailer, eliminating the need for the standard vulnerable air, electrics and ABS/EBS spiral lines.

The KKS-U basically consists of three parts: the reliable future-proof and ISO 13044-2 compliant standard wedge, the steel spring and the cable box. The newly designed wedge has the familiar KKS connector installed inside. It is attached to the high-quality JOST king pin and rotates around it when cornering. The steel spring encases the supply lines for air, brake and electric safely and reliably. The supply lines are safely stowed in the KKS cable box and are fed into the steel spring when cornering.

“The KKS-U Connector is a unique solution for all trailers that are already in operation. Due to a particularly straightforward installation, they can be effortlessly equipped with the KKS system. No modifications to the trailer chassis are necessary”, said Andreas Jakubin, Product Manager KKS. “Thus, the KKS-U contributes to further savings in time and expenses as well as avoidance of accidents.”

Advantages of the KKS: more efficiency and safety for truck drivers

Using the KKS automatic coupling system can cut the time required to change a trailer by up to 50 percent, as there is no need to manually crank the landing gear, connect the supply lines or open the fifth wheel coupling. The KKS significantly reduces the total costs for each circuit, with savings of up to 50 percent possible during the coupling and uncoupling process. It is particularly well suited for transport companies which perform coupling processes often and drive short distances, such as those in on-site transport, as the time saved here really pays off financially. Another application is the transport of goods where safety plays a key role, such as hazardous goods, as the sensor monitoring guarantees a high level of security against trailer losses and incorrect coupling. The KKS is also an ideal solution for transport between production sites and logistics facilities. Errors or damage caused during the coupling process are eliminated completely thanks to monitoring through the KKS remote control. For example, the Modul E-Drive landing gear is always fully retracted automatically. Moreover, the KKS reduces the probability of trailer losses due to erroneous operation, damage and occupational accidents to virtually zero.

Furthermore, the KKS makes all the physically demanding tasks of the coupling process a thing of the past, as well as ensuring that this process is no longer dependent on the weather or time of day and significantly reducing stress. A standard pneumatic cylinder opens the fifth wheel coupling effortlessly, even when the tractor-trailer is twisted. The automatic coupling process means that the driver does not have to climb in and out of the cab as often, nor climb onto the catwalk between truck and semi-trailer – two factors that significantly reduce the potential for injury. These benefits mean the KKS opens new possibilities for a more diverse driver pool; as such, JOST is providing an answer to demographic change and the lack of specialist workers.

More information on the KKS and KKS-U Connector online at:

About JOST:

JOST is a world-leading producer and supplier of safety-critical systems for the commercial vehicle industry. Under the umbrella brand of JOST, the comprehensive range of products is broken down into systems for applications on the road and in agriculture:

The JOST brand includes fifth wheel couplings, landing gears, ball bearing turntables, king pins and container locks as well as components for alternating systems. Truck and trailer axles are also sold under the JOST brand. The tradition-steeped ROCKINGER brand comprises the core components of towing hitches, drawbar eyes and drawbars for transporters and trucks. TRIDEC offers steering systems and axle suspensions for trailers.

ROCKINGER products are also used in agricultural applications. Quicke has been part of the JOST family since February 2020 and specialises in agricultural front loaders and equipment.

JOST currently employs over 3,600 staff worldwide and has sales and production sites in over 20 countries and on all five continents. JOST has been listed on the Frankfurt Stock Exchange. Further information on JOST can be found here:

Press images can be found here:

To view this piece of content from, please give your consent at the top of this page.

Contact information

Christin Zindritsch
Manager Marketing Communications

About Business Wire

Business Wire
Business Wire
24 Martin Lane
EC4R 0DR London

+44 20 7626 1982

(c) 2018 Business Wire, Inc., All rights reserved.

Business Wire, a Berkshire Hathaway company, is the global leader in multiplatform press release distribution.

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

Preventing the Effects of Climate Change: EliTerra®, a Technological Platform Dedicated to Biosolutions That Reduce the Water Needs of Field Crops1.6.2023 05:06:00 CEST | Press release

Elicit Plant announces the acceleration of its scientific developments and its product roadmap by presenting the one and only technological platform that offers biosolutions to help prevent climatic risks for field crops by reducing their water consumption by up to 20%. This press release features multimedia. View the full release here: @elicitplant On the occasion of its participation in the ChangeNOW Summit, the event for solutions for the planet that takes place from May 25 to 27, 2023 in Paris, Elicit Plant unveils EliTerra®, its technological platform and associated products that allow crops to adapt to climate change, particularly to drought. This is a world first that will boost the marketing of new Elicit Plant BioSolutions with a favorable environmental profile, following on from the success of its first product, BEST-a, which enables corn to consume up to 20% less water. "This type of solution is particularly expected

IFF Completed Divestiture of Savory Solutions Business31.5.2023 22:15:00 CEST | Press release

IFF (NYSE:IFF) today announced that it has successfully completed the previously announced divestiture of its Savory Solutions business unit to PAI Partners (PAI), a leading global private equity firm with a strong focus on the food and consumer industry. Under PAI ownership, Savory Solutions Group has been rebranded to NovaTaste, a global leader in taste innovation with headquarters in Salzburg, Austria. “The sale of IFF’s Savory Solutions Group represents our continued efforts to optimize our portfolio as we focus on core businesses and strengthen our capital structure,” said Frank Clyburn, IFF CEO. “We remain steadfast in our commitment to further pursue portfolio optimization opportunities as we drive toward our deleverage target by the end of 2024. We’re grateful to our Savory Solutions colleagues, who have demonstrated their commitment to innovation, service and quality. We wish them the best in their new journey.” Cautionary Statement under the Private Securities Litigation Refo

UAE Pledges Additional $2.7bn in Industry Offtake Agreements, Invites Global Investors to Leverage Incentives31.5.2023 20:13:00 CEST | Press release

His Excellency Dr. Sultan Al Jaber, Minister of Industry and Advanced Technology, today announced $2.7 billion in offtake agreements for the UAE’s industrial sector in a move to boost local manufacturing, strengthen supply chains and attract international investors. This press release features multimedia. View the full release here: His Excellency Dr Sultan Al Jaber UAE Minister of Industry and Advanced Technology (Photo: AETOSWire) Addressing the second Make it in the Emirates Forum, HE Dr. Al Jaber said the new set of procurement opportunities would build on the previous forum’s offtake agreements. “One of the key achievements of last year’s forum was several leading national companies announcing their intention to invest $29.9 billion over the next decade to purchase 300 products from local manufacturers,” HE Dr. Al Jaber said. “I am pleased to share with you that in the first year alone, 28 percent of these offtake agreement

Carbios Will Receive Grants Totaling €54 Million From French State via France 2030 and Grand-Est Region 1 to Finance Construction of World's First PET Biorecycling Plant and Accelerate R&D Activities31.5.2023 18:30:00 CEST | Press release

Regulatory News: This press release features multimedia. View the full release here: Carbios will receive grants totaling €54 million from French State via France 2030 and Grand-Est Region to finance construction of world's first PET biorecycling plant and accelerate R&D activities (Photo: Carbios) Carbios (Euronext Growth Paris: ALCRB), a pioneer in the development and industrialization of biological technologies for reinventing the life cycle of plastics and textiles, announces that its project has been selected by the French State for funding of €30 million from the French State as part of the investment plan France 2030, and €12.5 million from the Grand-Est Region. The implementation of this funding is conditional to the European Commission's approval of the corresponding state aid scheme, followed by the conclusion of national aid agreements. As part of the national call for projects on "Plastics Recycling" operated by ADEM

SellerX to Acquire Elevate Brands, Creating One of the World’s Leading eCommerce Aggregators31.5.2023 17:00:00 CEST | Press release

SellerX, one of the most successful eCommerce aggregators in Europe, has signed an agreement to acquire Elevate Brands, a leading U.S.-based aggregator of eCommerce businesses. The combined companies will form SellerX Group and become one of the world’s largest consolidators of eCommerce brands with a diversified portfolio spanning over 40,000 consumer products. The combined business will have a strong global footprint and sales of over €400m. This acquisition brings together two key players in the aggregator space, each of which have established themselves as highly trusted and reputable partners for marketplace-native sellers in their respective markets. Bringing together complementary global footprints, the joint business will cover both the European and U.S.-markets with a roughly even revenue split across the two regions. The combined brand portfolio will consist of over 80 Amazon-native private label consumer brands in the segments of sports & outdoors, home & kitchen, mobile acc