Injection molding system and manufacturing system

An injection molding system comprising:

• a main unit that accommodates a first injection molding machine that molds an integrated product by injecting a first molding material into a cavity which is defined by a lower die and an upper die and in which an insert member is disposed, the main unit having a first enclosure housing the main unit and a first base at which the first injection molding machine is located, the first base being rectangular-shaped and extending in first and second directions perpendicular to each other in a plan view;
• and
• an optional unit having a second enclosure housing the optional unit and a second base at which an inner machine is located, the second base being rectangular-shaped and extending in the first and second directions in the plan view,
• wherein the optional unit includes at least one of:
• a member molding unit that accommodates a second injection molding machine, as the inner machine, that molds the insert member by injecting a second molding material or a press molding machine, as the inner machine, that molds the insert member in press molding;
• and
• a robot unit that accommodates a robot, as the inner machine, that performs placement operation of placing the insert member in the cavity or transport operation of transporting the integrated product molded by the first injection molding machine,
• the main unit is so configured that the optional unit is attachable thereto and detachable therefrom by a bolt,
• a first length in the first direction of the main unit and a second length in the first direction of the optional unit are the same, and
• a first height of the main unit and a second height of the optional unit are the same.