Rotary joints – signal transmission in 360° rotating waveguides

Regarding rotary joints, SPINNER has been setting new standards world-wide since the early sixties. The companies' innovations in this field together with the technical know-how and top-quality claim has allowed SPINNER to become one of the leading rotary joint manufacturers. We support our customers' applications on land, above and under water as well in air and in space.

Get an overview of our rotating solutions for the different applications:


There is a growing need for faster, more accurate data and power transmission via rotary joints for automation applications. SPINNER is now offering a new technology to accomplish this, the contactless rotating interfaces are based on inductive and capacitive coupling. This means contactless transmission of power up to 6 kW and data rates up to 1 Gbit/s for rotating applications in automation technologies.

Wind Energy

Transfer of data and power in real-time with Ethernet technology. Today’s wind turbines have to fulfil increasing demands with regard to energy yield, efficiency, and reliability. To meet them, the systems linking the rotor blades and the control electronics in the nacelle must transmit signals at ever-greater speeds.

Offshore and Deep Sea

Transfer of communication and sensor data as well as high power voltage for remotely operated vehicles (ROV), winches, camera systems and drilling systems. SPINNER supplies both off-the-shelf and customized combinations of fiber-optic and RF rotary joints for offshore and subsea applications.

Satellite Communication

Rotating solutions for broadband internet access, video conferences, telephone service and data transfer. Rotary joints for SatCom mainly have one or two channels and are suited for unidirectional or bi-directional communication. Often coaxial or waveguide rotary joints or combinations of these two versions are employed.


Even under the extreme conditions in outer space, a rotary joint must ensure absolutely reliable signal transmission over the whole service life of the satellite. In addition, the lowest possible weight plays a key role.


Custom designed solutions for radar systems such as for weather observation, air traffic control and sea rescue. Several other fields of use exist also, each of them with specific, extremely demanding requirements on the rotary joint. Virtually all applications need 360° space surveillance in continuous rotation, thus making the rotary joint an indispensable key component of such systems.

The special benefits of SPINNER rotary joints include their compact design, excellent VSWR and low attenuation loss, low variation of transmission properties during rotation, and high crosstalk attenuation between the individual channels over the whole frequency range. SPINNER is able to develop and deliver any kind of rotary joint combination you may need.

If you can’t find a rotary joint according to your specifications online, please contact our sales team with the specification needed or select one of the displayed products for a Quote Request and add your special requirements in the comment field of the form before submitting.

SPINNER RF components meet highest standards

SPINNER applies extremely high standards with regard to quality, engineering, materials and manufacturing e.g. DIN EN ISO 9001 - Quality Management, DIN EN ISO 14001 - Environmental Management and ISO 50001:2011 - Energy Management. This enables us to offer rotary joints with the best possible performance and lowest possible intermodulation (Low PIM), even under the harshest environmental conditions.