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Description
Stirling Engine Model Metal Single Cylinder External Combustion Generator Model DIY Stem Engine ModelMetal Single cylinder Stirling Engine External Combustion Generator Model DIY Stem Engine Model Features: . Exquisite appearance, exquisite design . Made of high quality material, the hot cylinder sleeve is made of brass, and the heat dissipation performance is good. . Material upgrade, body, base, flywheel using aluminum alloy material, meticulously polished, beautiful . Brass cylinder and quartz glass heating cylinder make the engine quality more
Metal Single-cylinder Stirling Engine External Combustion Generator Model DIY Stem Engine ModelFeatures:
.Exquisite appearance, exquisite design
.Made of high quality material, the hot cylinder sleeve is made of brass, and the heat dissipation performance is good.
.Material upgrade, body, base, flywheel using aluminum alloy material, meticulously polished, beautiful
.Brass cylinder and quartz glass heating cylinder make the engine quality more stable and reliable
.In terms of machine sealing, the cylinders all use high-priced silicone sealing rings, which are airtight and airtight. In addition, there are alcohol lamp grooves for more stable and safe use.
.The unique 5-hole flywheel of this machine is very unique. The generator is a special self-made high-voltage generator. The power generation effect is good, the resistance is small, the power is very large, and the voltage can reach 4-9v.
.Fuel: 95% alcohol (not included), pay attention to not add water, kerosene, gasoline, lighter oil, liquor
.Start-up mode: Place the engine model in a horizontal position, ignite the alcohol lamp, heat it for 1 minute, and use the flywheel to move the machine to the machine. The bulb will light up and you can replace the bulb yourself.
.By observing the operation flow of the entire engine, it is more intuitive to understand the working principle of the Stirling engine and deepen the interest in learning of physics.
.The product is very suitable for model lovers DIY, not only has collection value, but also can be used as laboratory teaching aids, children's educational toys, high-end gifts, etc.
.Products suitable for people over 14 years old
.Tips: Be careful not to be hot to the high temperature during the operation.
.When the machine is running at high speed, vibration shift may occur. Please prevent the machine from falling from the table.
Specifications:
.Color: As Shown
.Material: Aluminium Alloy + Copper
.Product Dimensions: 18 x 9 x 7.5cm
.Product Weight: 343g
.Package Dimensions: 23 x 13 x 12cm
.Package Weight: 440g
.Packing: Box
Package Content:
.1 x Stirling Engine Model
.1 x Alcohol Lamp
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 1
Terrible pillows
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Comfortable from the first night
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow.
However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated.
I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle.
OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed.
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Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better.
Will post the results in a day or two.
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Reviewed in the United States on March 24, 2026
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
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Reviewed in the United States on May 30, 2026