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Description
Stirling Engine Kit Mini Hot Air Motor Model Educational STEM Toy Science Experiment KitMini Hot Air Stirling Engine Motor Model Educational Toy Science Experiment Kit Description: Material: Steel,copper and Aluminium Weight: 600g Color: silver Features: Using mold steel manufacturing, solid and firm; Flywheel , fine milling, texture and beauty double combination; Rod made of stainless steel manufacturing; Dynamic link sets of aluminum alloy cylinder, power cylinder and the power piston is good material fine grinding surface of special
Mini Hot Air Stirling Engine Motor Model Educational Toy Science Experiment Kit
Description:
Material: Steel,copper and Aluminium
Weight: 600g
Color: silver
Features:
-Using mold steel manufacturing, solid and firm;
-Flywheel , fine milling, texture and beauty double combination;
-Rod made of stainless steel manufacturing;
-Dynamic link sets of aluminum alloy cylinder, power cylinder and the power piston is good material fine grinding surface of special treatment, high hardness. Do not wear high-speed ultra-long-running;
-Heating cylinder of quartz glass.
Instructions:
-The engine model on the horizontal position by hand toggle the flywheel to see if smooth, if there is a strong sense of raw astringent, check the connection rod is normal, whether the cylinder oil and dust, and if so, please use toilet paper to erase Not smooth. Toggle the flywheel feel pressure rebound within the cylinder body is a normal phenomenon, the cylinder is sealed.
-The packing bag of alcohol lamp cotton wear into the metal cap lamp.
-Please go to the pharmacy to buy 95% purity alcohol, anhydrous industrial alcohol better. Fill the alcohol lamp to less than two-thirds.
-Alcohol lamp to the alcohol lamp, at the premise of ensuring safety, ignite the alcohol lamp about 2 minutes after the flywheel, until the flywheel automatic operation so far, the whole process of heating, hands may not touch.
Note:
-There will be the operation of steam,when the steam too much time, the engine will stop working,
inside and outside the needle often set aside to reduce friction
-Do not rotate the nut too tightly, otherwise the glass is broken, if the piston is cracked,
can be bonded with glue.
-The alcohol lamp wick do not touch the glass, do not get too tight ring
-Pulling the piston connecting rod can not force the front end, because the front
end is easy to break
-The alcohol is not included.
-This need your assembly.
Package included:
1 kit of Stirling Engine Model
Shipping Notes
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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]
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4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Juguete para mi perro
Size: 3 packs
Mi perrito se divierte mucho y especial para sus dientes
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Reviewed in the United States on October 24, 2025
★★★★★ 2
Smells it play full
Size: 3 packs
Smells like plaster my dog plays with it and barks she don’t like it in her mouth taste terrible
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Reviewed in the United States on May 27, 2026
★★★★★ 5
SO durable & my Blue Heeler LOVES it!
Color: Purple, Color: Purple
My Blue Heeler tears up almost all of her toys if they’re not rubber. This ball is SO durable and she loves it so much!! We’ve had it for 5 months now. She chews on it every day for long periods of time and it’s showing pretty much no wear and tear. I keep wondering if I’ll ever have to pull out the second one from the box lol. It can be hard to squeak with one hand, but it’s easy enough with 2 hands or if you step on it with your foot. It’s hilarious that every time I squeak it she licks her lips. My girl never actually squeaks it while she’s chewing on it, which is actually a plus cuz it doesn’t get annoying when she’s chewing on it for long periods of time. I also love that the ball helps clean her teeth because of the spikes and the size is larger so it’s easy to take it from her while playing fetch. Overall a fun, durable dog toy!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Totally indestructible!
Color: Purple, Color: Purple
Finally! A toy my aggressive chewer cannot destroy!! Can’t even get the squeaker out! No other toy has ever held up and it’s got some nice bounce to it. Perfect size so it can’t get stuck under the sofa. Furthermore, it aids in cleaning his teeth and he loves them. This is a great money saver too!
Update - 3 months later - still pup’s fav…still whole - still lotsa bounce - still has squeaker intact. As good as new! I’d buy these again but don’t need to 😃!
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Toughest ball of this type.
Color: Blue
My dogs are brutal with these toys. I really like them as the spikes act as a tooth brush, and the dogs love knawing on them. There are other spiked balls like this on amazon, but this one is of better quality. It lasts a lot longer. The squeaker does not last long, the dogs teeth push it into the ball, you can hear it rattling around in there.
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Reviewed in the United States on December 1, 2025