Rotary Joints





Rotary joints are needed wherever signals have to be transmitted between a fixed platform and a second platform in continuous rotation. Such applications include traditional radar technology for air traffic control or anti-missile defence, medical engineering, V-Sat and SatCom technology as well as industrial applications like TV camera systems or cable drums that allow sensitive cables to be wound up without twisting them, thus increasing their reliability.


Special benefits of SPINSTAR rotary joints are their compact design, excellent VSWR and low insertion loss, low variation of transmission properties during rotation, and high crosstalk attenuation between the individual channels over the whole frequency range.


rotary joints
channel single/dual/triple
interface 3.5mm-f(50Ω)
frequency DC-4.5GHZ
peak power max. 1KW
average power 10W
VSWR 1.5
VSWR WOW max. 0.1
insertion loss max. 0.3db
insertion loss WOW max. 0.15db
isolation min. 50db
ambient temp. -40℃ to +70℃
relative humidity 95%
ingression protection IP60
working torque 0.05N.m(@20℃)



Typical Applications:

• Radar

• Ca-maria monitor equipment

. RF transmission


single channel ,dual channel, triple channel

microwave guide

compact structure

long life cycle

customize available