Gas Assisted Injection Mold

Gas assiist injection molding is a variation of conventional injection molding that can be easily retrofitted to an existing injection press by the addition of an auxiliary gas unit, The usual injection of molten plastic is assisted by the introductioin of pressurized gas ( usually nitrogen ) into the mold.

The gas produces a bubble which pushes the plastic into the extremities of the mold creating hollow sections as the bubble propagates.

Gas assist molding offers a variety of process and design features which can help to meet application requirements.