JIANGYIN DELING GEARBOX CO.,LTD, a professional designer and producer of hard tooth surface gearboxes, from its very first day of operation to now, it has been concentrating in developing and manufacturing the gearboxes especially for rubber and plastic machinery for over 20 years in China. If you are interesting in our products, please contact me email Shirley@dlclx.cn, whatsapp: +8613706160536. SZ horizontal conical twin screw gearbox is a special mechanical drive device designed to match with conical twin-screw extruder. The device decelerates the speed and increases the torque of the power from master motor through gearbox before exporting it to the long shaft of distribution box that drives short shaft through a pair of slender cone screw gear with drive ratio of 1:1. Long shaft and short shaft drive short screw at the same angel as screw to extrude high-quality products in the way of different direction and outward turning. url:http://www.delinggearbox.com