the number of molding cycles is higher than 1M repetitions, used to produce plastic parts at high volume. The molding area( including the slides and lifters in contact with melt plastic materials) is hardened. Best mold materials are used. Additional requirement are listed below:

1) it needs to have detailed mold design document.
2) the mold base hardness>25HRC
3) the cavity surface( on both fixed and moving half) hardness>48HRC. Tool steels of high hardness are used for all other auxiliary components such as the slides and lifters.
4) the ejection mechanisms should have guide components.
5) there should be a wear block on the side slide.
6) it needs to install a temperature controller on the fixed half, moving half, and slide, among the others.
7) it should apply anti-corrosion treatment to each component which has contact with circulating water.
8) it should install a parting line locking mechanism.