By Number of Extruded Layers:
Single-Layer Extruder:It features the simplest structure and the lowest investment cost. Fed by a single extruder, it produces single-material sheets.
Multi-Layer Co-Extruder:It shares a single die with multiple extruders (typically 3-7 layers) to co-extrude different materials simultaneously, forming a composite structure.
By Screw Configuration:
Single-Screw Extruder:It features mature technology, low cost, and simple maintenance, with average mixing capacity.
Twin-Screw Extruder:Predominantly co-rotating parallel twin-screw type, it boasts strong mixing, plasticizing, and degassing capabilities, along with stable output.
By Product Thickness:
Thin Sheet/Film Extruder:The sheet thickness is usually 0.1-1.0mm, the production line speed is fast, and high precision is required for cooling and shaping (three-roll calendering).
Thick Sheet/Plate Extruder:The production thickness ranges from 3mm to over 20mm, requiring the extrusion system and three-roll calender to have strong plasticizing, cooling, and traction capabilities.
By Application Field:
General-Purpose Sheet Extruder:It is compatible with various common plastics (such as PP, PS, and PE) and can be produced by replacing the screw and adjusting the process, featuring high flexibility.
Special-Purpose Sheet Extruder:Designed for specific materials, it is equipped with a dedicated system.