3D Printer ABS PLA Filament Extrusion Machine

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Product Description

As a pivotal link in the 3D printing industry chain, the 3D Printing Filament Production Line integrates precision extrusion, intelligent temperature control, and real-time diameter monitoring technologies. It processes raw materials such as PLA, ABS, and PETG into high-precision filaments with a diameter tolerance of ±0.02mm, relying on extruder for efficient plasticization and multi-stage cooling systems to ensure surface smoothness. Suitable for mass production of standard filaments and customized processing of high-performance materials like carbon fiber-reinforced PC, it provides reliable material support for 3D printing applications in manufacturing, medical, and aerospace fields.

Configuration:

Machine	Quantity
Hopper dryer	1set
Extruder	1set
Mould and die	2sets
Hot water tank	1set
Cold water tank	1set
Laser measuring machine	1set
Haul off machine	1set
Winding machine	1set

Key Components

Extruder

As the core equipment of the production line. During operation, plastic pellets (e.g., PLA, ABS, or composite materials with carbon fiber reinforcement) are fed into the barrel. Through the rotation of the screw and the heating system of the barrel, the raw materials are gradually melted, plasticized, and mixed, forming a viscous molten mass ready for extrusion.
Mould (Die Head)

Installed at the discharge end of the extruder, it is a critical component that determines the initial shape and diameter of the 3D printing filament. The die orifice is precisely machined according to the target filament specification. The molten plastic is extruded through the die orifice, initially forming a filamentous structure. Many production lines are equipped with multi-specification moulds, allowing quick switching to produce filaments of different diameters.
Hot water tank

Serves as a pre-shaping and stress-relief device for the filament. The freshly extruded filament is high-temperature and flexible; direct cooling in cold water may cause cracking or deformation due to excessive temperature difference. The hot water tank uses circulating constant-temperature hot water to cool the filament gradually, dissipating partial heat while avoiding internal stress accumulation. It also initially calibrates the filament’s straightness, laying a foundation for subsequent cold-water setting.
Cold water tank

Following the hot water tank, its core function is rapid cooling and final setting. Circulating cold water in the tank quickly removes the remaining heat from the pre-cooled filament, fully solidifying it to fix its diameter and shape, preventing deformation during subsequent transportation. Guide rollers are usually installed inside the tank to ensure the filament passes smoothly without tangling or bending.
Laser measuring machine (Laser Diameter Gauge)

A key quality control device for ensuring filament precision. After cooling and setting, the laser gauge performs real-time on-line monitoring of the filament's diameter. If the detected deviation exceeds the preset tolerance, it immediately feeds back data to the production line's control system. The system then automatically adjusts the extruder speed or the haul-off speed to dynamically correct deviations, ensuring uniform diameter throughout the entire filament length.
Haul off machine and winding machine

Responsible for pulling the cooled filament forward at a stable speed. Some advanced models allow moderate filament stretching by adjusting the speed, enhancing the filament's mechanical properties.

As the end equipment of the production line, it neatly winds the qualified filament into spools for storage and transportation. Equipped with a constant tension control system, it ensures the filament is subjected to stable tension during winding, preventing loose spools, over-tightening, or filament breakage.

Main Technical Parameter

Extruder Type	SJ-35	SJ-45
Motor power	5.5kw	15kw
Capability	8-12kg/h	16-20kg/h
Feeding raw material	ABS/PLA Pellet	ABS/PLA Pellet
Application	1.75mm, 2.85mm, 3mm	1.75mm, 2.85mm, 3mm
Tolerance	0.03mm

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