Quick verdict
If you need a bench-scale single-screw extruder for experiments or small-batch filament work, the 3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine lists for USD 158.86. The listed package centers on a 20mm screw with a 330mm screw length and three 200W heating coils, but the motor is not included. That means the real cost and complexity depend on the drive you already have or plan to add.
Who it suits
This is aimed at hobbyists, makers, and small labs that want to study or run plastic extrusion on a compact footprint. The 110V rating fits standard household outlets in many regions, and the 2.5mm default nozzle suggests filament or thin-profile work rather than large-diameter outputs. If you already have a motor and coupling setup, this machine could be a low-risk entry point.
What stands out from the listed details
The key specs are clearly laid out: a 20mm screw diameter, 330mm screw length, 30mm screw sleeve outer diameter, and 28mm inlet diameter. The heating side uses three 200W heating coils (600W total) controlled by a 110V supply, which should be enough for bench-scale melting of common thermoplastics. The 2.5mm nozzle aperture is a concrete detail for anyone aiming at filament or small cross-section extrusion.
Meaningful trade-offs
The biggest trade-off is the missing motor. The product description explicitly notes that the voltage is 110V and does not include the motor part. That means you need to source a compatible drive and likely a coupling or gearbox, which will affect torque and speed control. The default nozzle is 2.5mm, so if you need a different outlet size, you'll have to account for that separately. Also, the compact 300mm total length and 28mm inlet suggest small batch feeds, not high-throughput production.
Bottom line
For a shopper who already has extrusion drive components and wants a low-cost single-screw setup, the 3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine at USD 158.86 offers a clear list of mechanical and heating specs. Just plan for the motor, nozzle, and material feed before you commit.
3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine
The listed price of USD 158.86 makes this one of the more approachable single-screw extruders, but the absence of a motor means your total investment depends on what you can pair with it. The provided specs are specific: screw diameter 20mm, screw length 330mm, nozzle aperture 2.5mm, and three heating coils at 200W each. If you already have a motor and can handle the compact 28mm inlet, this is a reasonable bench-scale choice. If you expected a ready-to-run machine, the missing motor is the limitation to plan around.
