For hobbyists, makers, and small workshops, compact extrusion machines offer the ability to create custom filaments, test plastics, or weld and join materials on a manageable scale. The following selections from top brands provide a range of single-screw extruders, filament extruders, and related extrusion tools suitable for home use and light commercial work. This article compares features, performance, and safety considerations to help buyers choose a reliable small plastic extrusion solution.
| Product | Brand | Output (approx.) | Power | Notes |
|---|---|---|---|---|
| EQCOTWEA SJ15 110V Single-Screw Extruder | EQCOTWEA | 0.1-0.5 kg/h | 90 W | Compact home workshop use |
| EQCOTWEA SJ35 110V Single-Screw Extruder | EQCOTWEA | 0.1-5 kg/h | 400 W | Higher capacity for small business |
| TECHTONGDA Filament Extruder 0.1 inch | TECHTONGDA | Filament outputs varies | Not specified | Versatile filament production |
| ICZW Vertical Injection Molding Machine Semi-Automatic | ICZW | 0-15 g/t | 110V | Injection with mold replacement |
| 1600W Hand Extrusion Welder Gun | CHMING | N/A | 110V | Plastic welding and extrusion |
EQCOTWEA SJ15 Single-Screw Extruder 110V
The SJ15 from EQCOTWEA features a 0.6-inch (15 mm) single screw with an optimized 13:1 L/D ratio, designed to deliver stable melt flow and uniform output for various thermoplastics such as ABS, PLA, PETG, and TPU. It is suitable for lab tests, small-scale production, or educational use. The compact 110V power supply (90 W motor) supports home workshops, and the design reduces moving parts for easier maintenance. Adjustable barrel heating and feed cooling temperatures allow material-specific processing.
EQCOTWEA SJ35 110V Single-Screw Extruder
The SJ35 expands on the SJ15 with a 1.37-inch (35 mm) screw diameter, maintaining the 13:1 L/D ratio for stable processing. It supports a broader material range, including PEEK, PCL, ABS, PLA, PETG, TPU, and TPE. A 400 W motor drives a more capable output (0.1-5 kg/h). The unit emphasizes durability with hardened screw and barrel and includes upper/lower limit alarm functions for operator safety. This model suits small businesses or educational use requiring higher throughput than the SJ15.
TECHTONGDA Filament Extruder SJ35 1.37″ Screw
The TECHTONGDA extruder is designed for filament production, featuring a 1.37″ screw diameter and a nitrogen steel screw cylinder combination. The system is aimed at producing common 3D printing consumables such as ABS, PLA, PETG, and more. It emphasizes a wear-resistant pressing system and offers customizable dies to tailor the filament diameter, with a suggested extrusion line tolerance around 0.1 inches. It is positioned for users seeking to create or customize filament at home or in small shops, with a focus on durability and customization.
CHMING 1600W Hand Extrusion Welder Gun
This handheld extrusion welder combines hot air heating and extrusion in one tool, delivering 1600W of hot air and 800W for motor operation. Temperature range extends to 600°C in wind mode and 200-380°C during extrusion. It welds polymers like PE, PP, and PVC, and supports welding of plastic sheets, pipes, and tarpaulins. The device is designed for ease of use, portability, and high extrusion capability in challenging or hard-to-reach areas, offering a practical option for field repairs and small-scale fabrication tasks.
ICZW Vertical Injection Molding Machine With Pneumatic Extrusion
ICZW’s manual vertical injection molding machine functions as a compact, bench-top extrusion-capable unit. It offers a theoretical maximum injection of 0-10 g per operation with a temperature range of 0-350°C (0-662°F). The system emphasizes cost savings through replaceable molds and versatile material compatibility. The included bench vise and test mold expand its utility for quick prototyping and educational demonstrations, making it suitable for makerspaces and teaching labs.
Hmupkr 20g Vertical Injection Molding Machine
Specifically designed for ABS, PVC, PP, PC, and PET, this 20g vertical injection molding machine offers adjustable injection pressure and precise temperature control to produce consistently melted and molded plastics. Its range supports various plastics, enabling diverse production workflows. The device is positioned for small-scale production, testing, and prototyping where adjustable process parameters are essential to achieving desired results.
Buying Guide: Key Purchase Considerations
When selecting a small plastic extrusion machine, buyers should weigh capabilities against intended use. Consider these factors:
- Throughput and screw diameter: Larger screws generally enable higher throughput but require more power and careful heat management. Choose based on the expected material and volume.
- Material compatibility: Ensure the machine supports the plastics you intend to process, such as ABS, PLA, PETG, PVC, PP, or PVC derivatives.
- Power requirements and safety: Check voltage compatibility with your workshop. Look for temperature controls, overheat protection, via alarms or automatic shutoff, and robust safety features for home environments.
- Maintenance and durability: Hardened screws and barrels, wear-resistant components, and simple maintenance reduce downtime in small operations.
- Ease of use and setup: Units with straightforward controls, clear labeling, and minimal moving parts tend to be better for beginners and educational settings.
- Modularity and customization: Some extruders offer customizable dies or interchangeable molds, which expands versatility for filaments or small-batch production.
- Support and documentation: Access to manuals, replacement parts, and customer support matters for long-term reliability.
For buyers focusing on education or prototyping, lower throughput with simple operation may be preferable, while small businesses may benefit from higher throughput and broader material support. Safety features, durability, and service availability should be weighed alongside price and space constraints.