The multi-cavity side-gate hot runner adopts a structure where the plastic enters the product from the side. Combined with the design of a multi-cavity balanced runner, it is specifically designed for plastic parts such as shells, where gate marks are not allowed on the product surface and plastic injection from the end face is not feasible. It is the mainstream solution for multi-cavity molds with complex structures and is widely applied in fields such as electronics, home appliances, auto parts, daily necessities, and packaging.