Direct gate or Sprue gate

direct gate or sprue gate we can define as connecting directly end sprue to the molding and used as a gate, this type of gate is commonly used for single cavity molds, where sprue feeds the material to cavity molds directly rapidly with minimum pressure drop.
This type of gate is applied to molding of boxes or cups like bathtub, plastic bucket, and others, particularly large sized products.
Advantages
Low cost of design.
The injection pressure was reduced due to direct cavity filling.
Simple way to design gate and runner system.
easy design and maintenance.
Disadvantages
some disadvantage of direct sprue are:
since excessive stress is left easily around the gate, cracking often starts around the gate.
when using non standard sprue tapers, will more expensive with little gain.
gate mark left on part surface after runner of sprue trimmed of.
This gate type can only produce one part per shot.
The gate has to be cut manually by a cutter.
Not applicable in little size product.