Fine stone concrete pump/mortar pump Performance Featuresï¼? 1.Adopt the new generation S tube valve to change direction, at the same time equipped with floating wear ring, automatic compensation wear. 2.Anti - pump function to minimize pipe clogging. 3.The important part adds the guard plate, effectively protects the component safety. 4.Equipped with automatic lubrication system, effectively extend the service life of rotating parts. 5.The operation panel is equipped with wireless remote control handle, both panel and remote control can be operated. 6.The whole removable screen is easy to replace.