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Deublin Co. is a top manufacturer of rotating unions—a class of mechanical device that allows transfer of pressurized fluid from a stationary source into rotating machinery for heating, cooling, or transfer of fluid power. Deublin’s entree into the rotating-union market was its unique design that incorporated balanced mechanical seals. That innovative design began the growth of the company.

Rotating union applications include air clutches, gearboxes, machine-tool spindles, textile equipment, rubber and plastic manufacturing machinery, steel continuous casting machines, and paper-machine calender stacks.

In 1989, the Deublin product line was expanded to include steam joints and siphon systems for paper-machine dryer cans. More recently, they added a full range of electrical slip rings used for the purpose of conducting electrical current or signals into rotating machinery.

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Rotary Union

Mechanical devices used to transfer fluid from a stationary source into a rotating piece of machinery. Rotary unions are commonly used in manufacturing processes to cool, heat, or transfer pneumatic or hydraulic power.

Electrical Slip Rings

An electrical connection designed to pass the flow of current from a stationary device to a rotating one. Electrical slip rings are commonly used in semi-conductor production, wind turbines, industrial automation and directional drilling.

Partner Resources

Here are a few selected documents as a quick resource to better understand our partner’s expertise and value add for your project.


Deublin Company Overview

Deublin – Applications for the Machine Tool Industry

Deublin Performance System (DPS)

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