• It is nothing but the basic design, which is needed to construct a smooth
and proper filling of the mold cavity of the casting without any discontinuity,
voids or solid inclusions. A proper method of gating system is that it leads
the pure molten metal to flow through a ladle to the casting cavity, which ensures proper and smooth filling of the cavity. This depends on the layout of the gating channels too, such as the direction and the position of the runner, sprue and ingates.