DR 3L One-to-Two Semi-Automatic Blow Molding MachineThis infrared multi-functional plastic preform heater is powered by a three-phase four-wire 380V power supply (220V power can also be used). The machine consists of seven layers of heating lamps, divided into four heating zones. The electrical box contains heating control elements. Preheating time is generally 5-8 minutes. Temperature is automatically controlled by a temperature controller via thermocouples, ensuring stable temperature control within the heating chamber. The strong infrared penetration provides uniform, rapid, and reliable he...