
3D Printing Filament Extrusion Lines
Integrated extrusion solutions for 3D printing filament production, with high-speed and standard-speed configurations to match different production requirements.
Products
Explore Rongcai's high-speed and standard-speed 3D filament extrusion lines, along with automatic filament winding machines for different spool requirements.
Materials
Materials outside this list are reviewed case by case and are not part of the standard published configuration.
Category guide

Integrated extrusion solutions for 3D printing filament production, with high-speed and standard-speed configurations to match different production requirements.

Automatic winding equipment designed for filament take-up and winding operations. Select the fixing method that fits your production setup.
Comparison
Both configurations cover the same process chain from feeding to automatic winding. Compare the documented difference before choosing a line.
Selection guide
Specification
| Parameter | Specification |
|---|---|
| Process chain | Feeding, extrusion, cooling, diameter control, traction, automatic winding |
| Applicable materials | PETG, ABS, PLA, PLA+, etc. |
| Filament diameter | 1.75 mm ±0.03 mm |
| Screw and temperature control | Single screw 30:1 L/D, 6-stage independent PID |
| Installed power | 69.4 kW for the specified configuration |
| Diameter detection | Dual-axis laser, ±0.001 mm |
These specifications are shared by both the high-speed and standard-speed lines. Configuration-specific values such as extrusion output, line speed, cooling water tank and spool fixing method differ per line and are compared on the comparison page.
FAQ
A 3D printing filament extrusion line is a production system that turns polymer pellets into finished filament spools. A Rongcai line combines material feeding, single-screw extrusion, hot-water and cold-water cooling, in-line diameter measurement, servo traction and automatic winding, so one continuous process runs from raw material to a wound spool.
Rongcai filament extrusion lines are specified for PETG, ABS, PLA, PLA+, etc. Other materials are reviewed case by case during the project discussion and are not part of the standard published configuration.
The documented configuration produces 1.75 mm filament with a tolerance of ±0.03 mm. Diameter range and tolerance are confirmed together with the material and output target during the project review.
Line configuration is agreed per project: material, filament diameter, target output, cooling and automation level, spool specification and plant layout all influence the final arrangement. Send the material, diameter, output target and spool size you pack, and Rongcai reviews a matching configuration.
Capacity is stated as extrusion output, not as a guaranteed finished-spool figure. For the documented high-speed configuration the extrusion output is up to 37 kg/h and is adjustable. Real throughput in service also depends on material, spool changeover and the shift pattern, so the figure is agreed with your own production target.
With the material, filament diameter, target output and spool specification, Rongcai can review a matching configuration and prepare a quotation.