Selling Rotary Joints in Jakarta. Rotary Joint is a device used to distribute liquid in the form of water into a rotating workpiece with the aim of stabilizing the surface temperature of the workpiece. This Rotary Joint product has several parts, namely: Port Go or In, Port Return or Out, Shaft Joint, Body Rotary Joint, Bearing, Spring, Neple Grease. Rotary Joints are usually used in industrial fields such as extruder machines and open mild. We provide quality Rotary Joints at competitive prices.