PET material has good transparency and oil resistance, but its melting point is relatively low. Therefore, in multi thermoforming machine, PET only needs less time to soften the sheet when it is sent into the oven through the feeding rack. After forming through the mold, ideal finished products can be produced by cooling in a short time. However, using PP sheet requires higher temperature to heat it and then enter the forming station. After forming through the mold, a large amount of cold water needs to be injected into the mold for cooling due to the high temperature before it can be sent to the next station. If using PP sheet for production, the equipment runs quickly and the finished product may turn white at the bottom due to incomplete cooling.
The Sinoplast thermoforming machine has been changed from being driven by an eccentric wheel to being driven by a curved arm method, which can make the equipment run faster. When producing PP sheets, it can reach up to 30 molds per minute, and when producing PET sheets, it can reach up to 40 molds per minute. This greatly improves the production efficiency of customers.
