Rotating unions
High-quality rotating unions direct from the manufacturer
We have more than 60 years of experience in designing reliable products. In addition to standard products and their maintenance, we also offer special solutions and customer-specific designs based on the modular principle. This enables us to offer the user the optimum solution.
Leak-free guarantee
Low maintenance
Customizable
Over 100 satisfied customers
Contact for rotating unions
Friedhelm Klein
Years of experience
References
Successful cooperation
About the company
As a specialist for high-quality rotary unions, Klein GmbH has been developing individual solutions for the highest demands since 1963. Based on decades of experience and valuable customer feedback, we have developed four standard types that reliably and uncompromisingly cover the majority of applications on the market. Guaranteed tightness, minimum maintenance and maximum durability characterize each of our products.
Customizable
Our standard types can be flexibly adapted: in terms of materials, seals, connections and more. For special requests or extreme requirements, we develop completely new rotary feedthroughs, precisely tailored to your application.
Long-standing partnerships
Instead of short-term project execution, we focus on long-term cooperation and partnership-based thinking: if you’re doing well, we’re doing well. This is one of the reasons why Klein GmbH has been held in such high regard for decades, from medium-sized specialists to international corporations.
Worldwide use
Our rotating unions prove themselves every day in applications all over the world. Developed and manufactured in Germany – valued internationally.
Reliability and reliability
We have stood by our word since 1963. Reliability and honesty are the cornerstones of our actions.
Overview of our rotating unions
TYPE 64X
Standard rotating union
TYPE 65X
Rotary feedthrough in axial design
TYPE 650X
Rotary feedthrough in radial design
TYPE 65XX
Reusable rotating union
Would you prefer to view the rotating unions in our product brochure?
Which medium would you like to use?
Rotary feedthroughs for the medium water
Rotary feedthroughs for the emulsion medium
Rotary feedthroughs for the medium oil
Rotary feedthroughs for the medium steam
Rotary feedthroughs for the vacuum medium
Rotary feedthroughs for the food industry
Rotary feedthroughs for the medium air
Rotary feedthroughs for hydraulic systems
Questions & Answers
Frequently asked questions about rotating unions
What are rotating unions and what are they used for?
Rotating unions are sealed swivel joints for rotating shafts or hoses that perform rotating or swiveling movements. This is always used when a rotation point is under particularly high load and must be cooled by an externally introduced medium or media (air, water, oil, vacuum) must be supplied to switch components, e.g. couplings. Common applications include the paper industry, printing machines, clutches for presses and much more.
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Can you customize rotating unions to the customer's specific requirements?
What is the delivery time for rotating unions?
Our standardized rotating unions can be delivered within a few working days. For customized solutions, we strive to keep delivery times as short as possible in consultation with the customer. In urgent cases, we can react immediately to ensure the fastest possible delivery according to the available shipping options.
What materials do we use to manufacture our rotating unions?
Depending on the model, our rotating unions are made of steel, aluminum, brass and bronze. Custom-made products are often adapted due to particularly high loads or the media used and are made from various stainless steels and titanium, for example.
How are our rotating unions manufactured and assembled?
The housings and rotors of our rotating unions are manufactured in-house on state-of-the-art CNC machining centers in compliance with all applicable norms and quality standards and then tested and assembled by specialists.
Seals, bearings and small parts are purchased exclusively from certified companies and processed in our products.
Do you offer spare parts or repairs for your rotating unions?
Yes, our rotating unions have a modular design and damaged or defective parts can be replaced. Repairs can be carried out at our factory or directly at the customer’s premises. We would also like to point out that we cannot accept any liability for repairs carried out by the customer. Our technical service will be happy to assist you at any time.
How are the rotating unions supplied and packaged?
Our rotating unions are coated with a preservative oil and packaged in such a way that they can be shipped by parcel services both at home and abroad. Special packaging for shipping by sea can also be used if required.
Can you provide a catalog or technical data sheet for your rotating unions?
Yes, each individual product page of our rotating unions contains a technical data sheet for download. You can download our entire brochure here or request a free print version using the contact form.
In which industries or application areas are our rotating unions used?
Our rotating unions are used in various industries and media (water, oil, air, emulsions). The most important areas of application are:
1. Paper and textile industry
– Cooling and drying rollers for uniform cooling and effective drying.
2. steel and metal processing
– Cooling and lubrication in rolling mills and processing machines.
3. food and beverage industry
– Water supply for cleaning, cooling and system cleaning.
4. chemical and pharmaceutical industry
– Supply of rotating components with cooling water/air and temperature control.
5. mechanical engineering and automotive industry
– coolants for tools, cleaning systems and tire assembly.
6. power generation
– cooling and lubrication in power plants and wind turbines.
7. packaging industry
– Supply of rotating modules in packaging lines and labeling machines.
8. printing industry
– Compressed air and vacuum supply for rotating cylinders.
9. conveyor technology
– Pneumatic supply in rotary systems.
10. automation and robotics
– media supply of rotating robot components.
11. emulsion-based applications
– Use in metalworking, machine tools, food and chemical industries.
Can you offer deliveries worldwide?
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