20 Years ago W7CY invented a new approach to replace prop pitch rotators with the next level of ruggedness. There were less than a dozen made. I have the last two. Torque: min 6,000 in lbs. Braking: min 15,000 in lbs. Vertical load: 1,500 lbs. Radial load1,000 lbs. This is the ultimate rotator to turn your most ambitious large antenna project. Both rotators turn. One control box is dark and needs troubleshooting. There is an issue where there seems to be a problem with the preset range. DISCLAIMER: These are only for someone who has master level mechanical and electronic skills. There are no schematics. There is no warranty expressed or implied. Must buy both rotators and controllers. $3,000.00 plus $150 shipping CONUS only.