Abstract: A plug insertion device for inserting a plug into a container. The device includes sides defining an opening therebetween. The opening receives a plurality of containers having openings at the upper end thereof. A platen having a plurality of insertion pins is pivoted over the sides. A sheet of plugs is positioned over the openings in the containers. The insertion pins engage the plugs and insert them into the containers upon application of a force to the platen. A return spring returns the insertion pins to their retracted position allowing for the removal of the plugged containers.