Pet Sheet Making Machine PET Thermoforming Extrusion Process

1. Introduction of PET sheet making machine

(1) Single screw making machine for PET sheet: single screw making machine for APET, PETG and CPET sheet is the most mature project with the most stable production at present. Generally, single extruder making machine or twin-extruder production line is adopted and Gwell uses the latest technology to increase the general efficiency by 30%.The transparency of PET sheet making machine can reach optical level.

However, this model has very high requirements for raw material processing, and the PET raw material needs to be crystallized and dried. This can ensure that the produced PET sheet making machine has no crystal points, whiteness, and poor transparency.

The main features of PET high transparency sheet making machine: impact resistance, excellent processability, good chemical resistance, and good insulation.

(2) PET high transparent sheet single-screw exhaust making machine: APET, PETG, CPET sheet single-screw exhaust extrusion making machine is improved from the PET high-transparent sheet making machine, which increases the exhaust function, Make the material in the screw barrel easier to remove the gas and excess water in the material. This equipment is not very strict on raw material processing. It only needs to crystallize the raw materials without drying. The quality of the products produced is also very good.

(3) PET sheet twin-screw exhaust making machine: APET, PETG, CPET sheet twin-screw exhaust making machine is improved from PET sheet single-screw making machine. The raw material processing non-crystallization, non-drying exhaust type PET sheet unit of this making machine has the advantages of low energy consumption and high efficiency. This model is a continuous improvement and upgrade product of Gwell. It has made significant improvements to the core vacuum system. The technology upgrades from the original Roots-water ring pump set to the Roots-rotary vane pump set, which can make the vacuum reach ≤10Pa. At the same time, the PET special alloy steel thin-walled roller set is used to greatly improve the cooling efficiency, thereby increase output, improve product toughness and transparency. The operating system independently written by Gwell ensures the humanization and easy operation of the equipment.

2. Machine models of PET sheet making machine