country specific websites:       

Diamond Antenna logo Diamond-Antenna-microwave-rotary-joint
Diamond Antenna & Microwave
produces in USA since 1956 high-performance rollrings and RF and microwave rotary joints and assemblies for Satcom, Air Traffic Control, Radar, wind turbines and computer tomography.

Roll Rings and Microwave Rotary Joints

The proprietary rollring technology has these advantages compared with sliprings:
  • less wear
  • maintenance-free
  • extended lifetime
  • lower resistance
View the Diamond capabilities presentation for rotary joints and roll-rings. (pdf)

Diamond Rotary Joints for Satcom (pdf)
Diamond Rotary Joints for ATC (Air Traffic Control, pdf)
Diamond Legacy Rotary Joints (pdf) Diamond-Antenna-Satcom-rotary-joint
Jeff Gilling explains Diamond Antenna rotary joints on You Tube
Diamond Antenna high power roll ring rotor for wind turbines with 600A per channel.
Data sheet Diamond Antenna roll rings (pdf)

AML Microtec logo

The RF and microwave rotary joints for the European market are being produced at Diamond Antenna Europe, a Joint Venture with the French company AML Microtechnique Lorraine, which produces also other components for applications in electronics and aerospace:
RF-components (waveguides and rotary joints),
machined parts,
machined housings und Diamond-Antenna-rotary-joint-assembly
integrated products

Salt bath welding according to MIL-B-7883c and surface treatments such as Nickel plating and painting with high quality enable to react flexibly to customer requirements.

AML machined parts