What is a planetary screw sheet extrusion line?
The PET Planetary Combination Screw Sheet Extruder is a cutting-edge solution designed to elevate the quality of PET sheet production. Featuring a unique 120 single screw + planetary screw combination structure, this extruder offers significant advantages in both performance and cost-effectiveness.Innovative Structure: Single Screw + Planetary Screw Combination
Our advanced Planetary Combination Screw Sheet Extruder features a unique 120mm single screw + planetary screw design, combining the best of both worlds. Unlike traditional single-screw extruders, this hybrid structure ensures:
1、 Superior Feeding Performance – No more feeding issues common in single-screw systems.
2、 Enhanced Mixing & Homogenization – Comparable to twin-screw extruders but with gentler processing.
3、 Minimized Molecular Damage – Preserves PET’s molecular structure for higher transparency and toughness. 
What can you do with it?
This PET planetary combination screw can produce higher-end PET sheets. It can solve a series of PET sheet extrusion problems that cannot be solved by single-screw and twin-screw extruders on the market, such as PET crystal points, poor toughness, and low transparency. Of course, in addition to making PET transparent sheets, it can also produce functional sheets such as PETG furniture films, high-gloss films, skin-feel films, etc.
Self-developed and mastering core technologies
New screw structure
The combination of 120 single screw + planetary exhaust is aimed at PET, a material with good fluidity and high humidity. It not only has a good mixing effect, but also ensures the integrity of the material's molecular chain and reduces the damage to the material's original physical properties.
More energy-efficient
No crystallization drying system is required, saving at least hundreds of thousands of dollars in electricity bills each year. Unlike traditional single-screw and parallel twin-screw sheet extrusion equipment, it does not need to be equipped with crystallization drying equipment to perfectly solve the problems of PET moisture drying and degassing.
Better extrusion quality
It solves the problem of poor feeding and mixing effect of single screw, while taking into account the mixing and fast feeding characteristics of twin screw, reducing the damage to the molecular chain of the material. The PET sheet produced has many advantages such as high transparency, good toughness, and no crystal point. Choosing it for high-end sheet will take your quality to a higher level.