The pouring cup is an important component of gating system for low pressure casting aluminum alloy wheel, mounted in the center of low pressure casting aluminum alloy mold base mold, and is tightly connected with the lower end of the gate set, aluminum liquid into one of the mold cavity is an important channal, casting the production of its main insulation performance, good heat insulation, can delay the gate delayed solidification, so as to guarantee the smooth feeding channel. The company adopts the independent development and production of high nitrogen compound ceramic, alumina and aluminum silicate sprue cup insulation materials, has the advantages of good heat insulation effect and long service life etc.. Can be customized according to customer requirements.