The gantry robot, with a working range of 7600 x 400 x 2500 mm, is located in the X-Y-Z plane where the solar panels are stacked.  The HSB inlet shaft of the dual rail Gamma series is the basis of the system.  X-y-z motion is performed by Estun EMG servo motor and Wanshsin planetary gearbox.  The mass of the grab and solar panels, a total of 75 kg, hangs on the Wanxin WAD series star and planet gear box.