This machine is the specialized equipment to apply the hot molten butyl sealant to both sides of the aluminum spacing frame uniformly. The only thing the operator needs to do is to hold the aluminum spacing frame and all the other operations (rolling, transfer,tec) can be completed automatically as programmed and hence convenient operation, stable and reliable operation, good effects of sealant extrusion and high production efficiency. It is indispensable to dualseal double-glazing glass manufacturing.