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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
ENJOMOR Hot Air Balance Stirling Engine External Combustion Engine GeneratorENJOMOR Hot Air Balance Stirling Engine External Combustion Engine Generator Features:. With innovative design concept and strict manufacturing, we use the theory of Stirling to build a model that leads kids to knowledge through tangible fun. Heated by alcohol lamp, the model can run quickly with strong power. With mini electric generator to light the LED lamp, the model is unique and exquisite.. The amazing performance will stimulate inspiration and
ENJOMOR Hot Air Balance Stirling Engine External Combustion Engine GeneratorFeatures:
.With innovative design concept and strict manufacturing, we use the theory of Stirling to build a model that leads kids to knowledge through tangible fun. Heated by alcohol lamp, the model can run quickly with strong power. With mini electric generator to light the LED lamp, the model is unique and exquisite.
.The amazing performance will stimulate inspiration and lead you to a fancy world. With the rotation of the flywheel, you will amazed at the energy transformation and enter a extended innovative world.
.The body adopts aluminum alloy, the connecting rod and actuating cylinder are made from copper. Silica glass is used in the heating cylinder. The surface of the model is anodized with metallic luster and operate stably. The model combines texture and beautiful.
.Instruction: Place the model on the desktop then add 95% alcohol into the alcohol lamp (less than 2/3 of the capacity). Lighting the alcohol lamp and preheating by the heating cylinder for 30s. Stir the flywheel to start. Do not touch the heating parts to prevent scald. Make sure there is no lubricant on the cylinder and piston.
.The product is suitable for science and technology enthusiasts, teaching and scientific experiment to exercise operation ability and cultivate innovative ability. With high quality and exquisite outlook, the model can also serve as a ornament and gift for friends and children on holidays. Age:8+
Specifications:
.Material: Aluminum Alloy + Copper + Silica Glass
.Flywheel Diameter: 50mm
.Driving Wheel Diameter: 20mm
.Actuating Cylinder Inner Diameter: 12.5mm
.Piston Stroke: 13mm
.REV: 1200rpm
.Generating Voltage: 3-5V
.Product Dimensions: 15.5 x 8 x 12cm
.Product Weight: 900g
.Package Dimensions: 20 x 11 x 18cm
.Package Weight: 1100g
.Packing: Box
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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 19 reviews
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Product Reviews
★★★★★ 5
Good for a dog who likes to chew
Size: Small, Color: Black
I bought this for our 7mo puppy. She loves to fetch the ball and chew on the tabs. The tabs are sturdy if you have a dog who loves to chew. Perfect size for our girl. It is a great for when she has pent up energy. It's below zero where we are so finding an indoor game is essential.
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Heavy chewer approved.
Style: Ball, Size: Medium (Pack of 1)
My pomsky will destroy a toy in minutes. Ropes, and the "indestructible" nylon type stuffs are no match for my furry shark. This ball has stood up to him like David. He loves the crunch and it is so much more tolerable than a squeaker. These will be a staple in his toy box - Chuckit toys are really the most durable dog toys I have found in three years.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Fun Ball
Style: Ball, Size: Medium (Pack of 2)
Great new ball for our pup. He loves the sound of the crunch!
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Durability
Style: Ball, Size: Medium (Pack of 2)
My dog loves these balls!
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Dogs love them
Style: Ball, Size: Medium (Pack of 2)
Our dogs love these. What’s great is that you can add more plastic (like from water bottles) if the plastic starts to fall out from the center. If you have a chewer, though, these won’t last you long. Our shepherd mix loves these and then starts to pull the rubber apart the more she plays with it. Our other dogs treat it normally, though, and those ones last forever. They also get some decent height when bounced, and they make a unique whistling noise when thrown.
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Reviewed in the United States on November 17, 2025