Multiple parison machines, with high numbers of molds are capable of producing over one million bottles per day in some configurations.
In other machine configurations, the molds utilize "book style" opening mechanisms, allowing multiple parisons of equal length.
The mold close and open actuation is typically carried out through a toggle mechanism linkage that is activated during the rotational process by stationary cams.
Because there is always some variation in the parison length on these machines, bottle weight and tolerance consistencies are not as tight as on rotary wheel machinery.
Additional high volume applications have included single-serve juices and drinkable yogurt, condiments, and household cleaning supplies.