Quick verdict
Choosing plastics rubber processing machinery often comes down to a practical split: do you want a simpler pneumatic machine for small samples, or automatic controls for a more parameter-led workflow? The Vertical Injection Molding Machine Semi-Automatic Pneumatic Plastic Extruder 20g is the lower-priced route at USD 759.99 and emphasizes a replaceable mold arrangement and adjustable heat. The 220V Vertical Injection Molding Machine 1KW Pneumatic Desktop Plastic Moulding is listed at USD 5,211.80, a USD 4,451.81 spread, and adds automatic control, 1KW power, digital displays, and a stated 40g maximum shot volume.
For buyers whose priority is straightforward semi-automatic operation with an externally prepared air pump, choose the first machine. Choose the 1KW HayWHNKN® machine when automatic control, dual-zone temperature regulation, and a larger stated shot volume are central to the job.
At-a-glance comparison
| Decision point | Semi-Automatic Pneumatic Plastic Extruder | 1KW Pneumatic Desktop Plastic Moulding |
|---|---|---|
| Listed price | USD 759.99 | USD 5,211.80 |
| Control | Semi-automatic | Automatic |
| Drive and heat | Pneumatic; adjustable 0-350°C | Pneumatic; temperature control up to 350°C |
| Control-panel details | Adjustable temperature is specified | Independent digital timing displays and dual-zone temperature regulation are specified |
| Production cue | Intended for small sample extrusion | 40g maximum shot volume and 1-ton injection pressure are stated |
Where each product wins
Semi-automatic operation and a lower listed price
The Vertical Injection Molding Machine Semi-Automatic Pneumatic Plastic Extruder 20g is the more suitable direction for work centered on small sample quantities and a simple, replaceable mold approach. Its description names PP, PE, ABS, PS, PA, PET, TPU, and PVC among usable plastics, while its heat setting can be adjusted through the stated 0-350°C range. The semi-automatic format may suit an operator who wants direct involvement in the molding sequence rather than automatic control.
Automatic control and expanded setup tools
The 220V Vertical Injection Molding Machine 1KW Pneumatic Desktop Plastic Moulding takes the lead for a workflow that benefits from automatic control and front-panel parameter management. Its independent digital displays cover timing and dual-zone temperature regulation, and the description positions it for laboratory testing, prototype work, and small-batch component manufacturing. The stated 40g maximum shot volume gives it a clear capacity-oriented cue for projects that call for more material per shot.
Product notes
Vertical Injection Molding Machine Semi-Automatic Pneumatic Plastic Extruder 20g
This semi-automatic pneumatic machine is a focused pick for shoppers seeking a lower listed price and an arrangement built around a simple hand-disassembled mold that can be replaced for multiple uses. Adjustable heating from 0-350°C supports material-specific setup, and the named material list spans common plastics such as PP, PE, and ABS as well as PS, PA, PET, TPU, and PVC. It also frames its role around small amounts of sample material for extrusion. Its practical limitation is the pneumatic requirement: an air pump must be prepared separately, with a recommended 30L, 500W-or-higher pump and stated pressure range of 0.65-0.85.
220V Vertical Injection Molding Machine 1KW Pneumatic Desktop Plastic Moulding
For projects where control settings need to be managed from the machine panel, the 1KW vertical molding machine offers automatic control, separate digital displays for timing, and dual-zone temperature regulation. Its vertical pneumatic architecture, stated 1-ton injection pressure, and 40g maximum shot volume make it the stronger match for the listed laboratory, prototyping, and small-batch contexts. PP, PC, ABS, PET, and PVC are named as compatible thermoplastics. The trade-off is its substantially higher listed price, so its automatic controls and stated capacity cues matter most when they are directly relevant to the intended work.
Final choice by use case
Pick the Vertical Injection Molding Machine Semi-Automatic Pneumatic Plastic Extruder 20g for small-sample work, replaceable molds, adjustable heat, and semi-automatic pneumatic operation at the lower listed price. Pick the 220V Vertical Injection Molding Machine 1KW Pneumatic Desktop Plastic Moulding when automatic operation, digital timing and temperature controls, and the stated 40g shot volume better match your laboratory, prototype, or small-batch process.
