Buying plastics rubber processing machinery comes down to a practical split: do you need a compact single-screw setup centered on filament dimensions, a desktop machine with a broad application list, or a machine specified around output capacity? These four options all use single-screw extrusion, but their screw sizes, heating details, included configuration, condition, and intended processing descriptions point to different jobs.
Quick take
The two 3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine options suit shoppers focused on a 2.5mm filament-oriented configuration and heating-coil setups. The Desktop SJ35 Single Screw Extruder Machine Mini Plastic Extrusion Machine stands apart with its Used condition, 35mm screw, 110V specification, and broad stated processing applications. For a setup where a stated production range is central to the decision, the Single Screw Extruder Plastic Heating Extrusion Machine 110V 0.1-2kg/h Dia 1 is the clear match, with a maximum output capacity of 0.1-2kg/h.
Listed price comparison
| Extruder | Listed price | Price position |
|---|---|---|
| Desktop SJ35 Single Screw Extruder Machine Mini Plastic Extrusion Machine | USD 1,899.00 | |
| 3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine - 20mm screw configuration | USD 161.31 | |
| 3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine - Three Heating Coil configuration | USD 149.99 | |
| Single Screw Extruder Plastic Heating Extrusion Machine 110V 0.1-2kg/h Dia 1 | USD 1,943.70 |
Decision matrix
- Choose by filament-oriented dimensions: The 20mm-screw 3D Filament configuration specifies a 28mm inlet and 2.5mm nozzle aperture. The Three Heating Coil version also identifies a 2.5mm filament diameter.
- Choose by stated process range: The Desktop SJ35 names applications including bar, wire, pipe, sheet, film, profile, filament, pelletizing, and more, alongside a long list of plastics.
- Choose by output specification: The TECHTONGDA machine is the only option here with a stated maximum output capacity of 0.1-2kg/h.
- Choose by working dimensions: The SJ35 has a 35mm screw; the filament-focused 20mm configuration has a 20mm screw; and the output-capacity machine uses a 1-inch, or 25mm, screw.
- Choose by machine configuration: The 20mm filament configuration explicitly does not include a motor part. The TECHTONGDA description identifies auxiliary equipment such as moulds and cooling, hauling, winding, or cutting equipment for completed plastic-product processing.
Product notes
Desktop SJ35 Single Screw Extruder Machine Mini Plastic Extrusion Machine
This machine makes sense for a shopper seeking a compact-format extruder with a wide stated material and application range. Its 35mm screw, 13:1 screw L/D ratio, 0.8kW power rating, 110V specification, and 15rpm screw speed create a more fully defined machine profile than the filament-focused entries. The description also includes extra parts and names processing uses from pipe and sheet to filament and pelletizing. The trade-off is its Used condition. At 43kg and 32 by 12 by 21 inches, it also calls for a workspace suited to its stated footprint and weight.
3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine - 20mm Screw Configuration
Pick this configuration when the stated mechanical dimensions are the priority: it combines a 20mm screw diameter, 330mm screw length, 28mm inlet diameter, 15mm screw output shaft diameter, and 2.5mm nozzle aperture. Three 200W heating coils and heating-coil operation further define the assembly. It is a focused choice for projects planned around those inlet, screw, and nozzle measurements. Its important limitation is explicit: the machine does not include the motor part. That makes the motor component a central consideration for this particular extrusion-machine configuration.
3D Filament Single Screw Extruder 110V/220V Plastic Extrusion Processing Machine - Three Heating Coil Configuration
The Three Heating Coil configuration is the pick for someone who wants a new, 2.5mm filament-diameter option with heating-coil operation and Universal compatible-brand and compatible-model labeling. It shares the single-screw, 3D-filament framing of the other similarly titled model while presenting its own listed configuration. The limitation is its narrower stated focus: the title and 2.5mm filament-diameter attribute frame it around filament extrusion, whereas the Desktop SJ35 description names a much broader set of finished forms, including wire, pipe, sheet, film, profile, and pelletizing.
Single Screw Extruder Plastic Heating Extrusion Machine 110V 0.1-2kg/h Dia 1
Choose the TECHTONGDA machine when a stated throughput range is more useful than a filament-specific nozzle measurement. It lists a 1-inch, or 25mm, screw, 16:1 L/D ratio, 0-25 r/min speed, 250W motor power, 400W heating power, and a maximum output capacity of 0.1-2kg/h. Its description also names PEEK, PCL, ABS, PLA, PETG, TPU, and TPE among suitable extrusion materials. The limitation is that it is described as the main extrusion machine rather than the full finishing setup: moulds plus cooling, hauling, winding, or cutting equipment are needed to finish processed plastic products.
Final recommendation by use case
- For the lowest listed-price route into the comparison: choose the USD 149.99 Three Heating Coil 3D Filament configuration, especially when a 2.5mm filament diameter is your target.
- For detailed screw, inlet, shaft, and nozzle measurements: choose the 20mm-screw 3D Filament configuration.
- For broad stated processing applications in a desktop machine: choose the Desktop SJ35, keeping its Used condition and 43kg weight in view.
- For a stated 0.1-2kg/h maximum output capacity: choose the Single Screw Extruder Plastic Heating Extrusion Machine 110V 0.1-2kg/h Dia 1.
