The design of the cold cutter of MEPER blow molding needs to be determined based on the bottle shape. For example, for small bottles under 1L, a retractable cold cutter is generally used; for 1L-5L bottles, a closed cold cutter is adopted; for 5L-30L bottles, a closed cross-cutter design is used, and so on. Of course, these designs all need to be confirmed based on the actual situation.

The cold cutting blade of of MEPER blow molding should be maintained every six months during normal use, with the blade edge re-sharpened and polished to ensure the sharpness of the blade.