sales@zjblowmolding.com
Features:
1, Single cavity to 12 cavities.
2, volume from 0.1L to 120L.
3. Blow mold size capacity up to diameter 50 cm
Stretch Blow Molding: For multiwall or multilayer pieces. It is a two stage process similar to that of injection blow molding. First the preforms are made using injection molding or a similar process. The preforms are then heated up, usually with infrared heaters. Then it is blown with high pressure air using metal blow molds while the preform is stretched using a core rod. Compressed air continues to blow in until the preform reaches the wall of the mold.
