Manufactured to very high standards with corrosion-resistant steel plates and optimized for preform production, MHT molds have a long service life before refurbishing becomes necessary. The mold design guarantees fast and easy servicing and maintenance. MHT molds are very operator-friendly. Regular maintenance work can be carried out directly at the machine with minimum time inputs. The forming parts are easy to exchange and enable production of different preforms from the same mold. Hardened mold parts with deeply engaging tapers support the lifetime of the mold and minimize maintenance.