1.75mm 3D Printer Rainbow Color PLA Filament Extruder Machine. Automatic PLC Control: Equipped with Siemens PLC and diameter automatic feedback system for closed-loop control. Customizable Screw Specs: Screw diameter and L/D ratio are customizable based on raw material requirements. Complete Production Line: Includes extruder, mold, water tanks, haul-off, storage rack, and winding device. High Precision Extruder: Features single-screw design with 30mm diameter and 72rpm max speed. 1 Year Warranty: Provides 1-year warranty and after-sales service for all mechanical equipment. Versatile Material Support: Suitable for PLA, ASA, PETG, and Nylon raw materials. 100% Quality Inspection: Finished products undergo visual and functional inspection before shipment. Global Export Experience: Exported to USA, Germany, Russia, Spain, South Africa, Canada, and more.