The servo motor is adopted to drive the moulding mechanism, triggering off a bottom mold linkage as well. The whole mechanism works speedily, accurately, stably and flexibly. Meanwhile, it is energy efficient and environmentally safe. Oil or electricity heated the mold can ensure bottles meet the hot filling requirement and withstand a temperature up to 90 - 90 degrees Celsius without deformation. The capacity of each cavity can be up to 700 - 900 bph. The servo motor-driven stepping unit stretching mechanism has improved the speed, flexibility and accuracy of blowing. The simple side in way of mold mounting makes it possible for the operators to change molds easily within 30 minutes. Occupies a smaller area. The series is applied widely in PET hot filling bottle for juice, tea drinks, energy drinks and other hot filling drinks.