Rotary joints

Rotary Unions – Reliable Solutions for Rotating Connections

Are you looking for a suitable rotary union? At Pneuparts, you will find a wide range of rotary unions, ranging from models up to 200 revolutions per minute to even 3,500 revolutions per minute. Whether you need a rotary union for compressed air, water, (thermal) oil, or other liquids, we have the right solution for your application.

Thanks to our extensive range, you are assured of a high-quality and durable rotary union that perfectly matches your needs. Not sure which variant is suitable? Our specialists are ready to help you make the right choice.

What is a Rotary Union and How Does it Work?

A rotary union is an essential component in systems where a medium (such as air/vacuum, water, oil, or coolant) needs to be transferred to a rotating part, such as a shaft, drum, or cylinder.

Unlike standard screw connections, which are only suitable for fixed connections, rotary unions are specifically designed for continuous rotation or swiveling movements within a specific pressure range. This reduces wear on pipes and hoses, prolonging the lifespan of the system and preventing failures.

Benefits of Rotary Unions

Prevents hose wear – Reduces torsional stress on pipes and prevents premature breakage.
Suitable for high speeds – Models up to 3,500 rpm for demanding applications.
Wide applicability – Suitable for compressed air, water, oil, and other liquids.
Durable sealing technology – Prevents leaks and guarantees long-term performance.

Choosing the Right Rotary Union

When selecting the right rotary union, it is important to consider:

Medium – Is the union intended for compressed air, water, oil, or another medium?
Rotation Speed – Choose a model that suits the desired revolutions per minute.
Pressure Range – Consider the maximum working pressure of the system.
Lubrication Requirements – Some rotary unions require lubrication via the medium (such as hydraulic couplings).

Important: The maximum pressure at the highest rotation speed can shorten the lifespan of the rotary union. Therefore, always choose a model that suits your specific application. Take advantage of our years of experience if you are unsure which of our items is best for you.

Applications of Rotary Unions

Rotary unions are used in a wide range of industries and applications, such as:

Pneumatics and hydraulics – Essential in compressed air systems with rotating connections.
Industrial machinery – For transporting oil or coolants in rotating parts.
Automotive & transport – In dynamic systems such as brake and suspension systems.
Cooling and heating systems – For circulating fluids without pressure loss.

Why Choose Pneuparts Rotary Unions?

At Pneuparts, you are assured of high quality, competitive prices, and excellent service. We specialize in the global delivery of over 100,000 pneumatic items, including rotary unions and other threaded fittings such as adapters and coupling rings.

Wide range – Suitable for various media and speeds.
Competitive prices – Affordable, high-quality solutions.
Expert advice – Our specialists assist you with all your questions.
Fast delivery – Available directly from stock for an efficient workflow.

Want to know more about our rotary unions or place an order directly? Contact us today! We are happy to assist you further.