This machine is specially designed for the purpose of automatically casting grids of lead-calcium alloy and low -antimony alloy in high efficiency in order to satisfy the current demand for alloy type low maintenance batteries. The machine structure allows a long time of smooth operation. And the automatic grid casting machine can produce grids with a thickness less than 4mm, which are suitable for automobile, motorcycle, and closed storage batteries. The production speed can reach 8-16 pieces of grids per minute.