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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
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery 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
4.5 ★★★★★
Based on 2042 reviews
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Product Reviews
★★★★★ 5
Great value and amazing quality!
Great quality, as the bags are not as thin as the other brands, so they are an amazing value and choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 5
Small balls for all of my dogs
I have 5 dogs of various sizes, and I have found that they all love the smallest tennis balls. The biggest won't touch a 3" tennis ball. I also have 2" balls, but everyone's favorite is the 1.5" ball. Now I have 40 of them to last a while!. This package comes with more colors than I've ever had, and they're all very visible. The purple is the least visible, but you can still see it in the grass. We have a large field and constantly throw the balls out. The dogs get plenty of exercise running and jumping after them. The dogs love the squeakers. The big dog (only 35 lb) can put the whole ball in her mouth, but she is not the type to try to swallow it, so I'm not worried. (I know there are some dogs out there who would swallow anything.) She just wants to bite down on it and hear it squeak. It's so much fun watching my dogs and their squeaky balls. The set came with a mesh bag for storage, too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
My dog is pleased!
Size: 10 Pacck, Color: Multicolor
My 7 lb cavapoo loves these!! They are the perfect size and a good deal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
★★★★★ 5
balls for puppy
Size: 10 Pacck, Color: Multicolor
great value, exactly what I was looking for, my puppy loves them.
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Reviewed in the United States on May 6, 2026
★★★★★ 4
Works but fibers are an issue
Size: 10 Pacck, Color: Multicolor
These were great for my small Yorkie puppy. She had to is bite issue and we needed these tennis balls to help her stretch and correct her jaw. Squeaker works well. The chewing helped but it wasn’t necessarily “chew resistant”. the little fibers from the ball will start to come off and dog will hack a bit. For that reason, I am unsure of the safety of it long term. Must be supervised always. Will try a def brand next time but this helped our lady w her jaw pain/issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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