- ★EASY START: just place on a mug of hot water and give it a spin and you're up and running; as long as enough temperature differential maintains, it will keep running like Forrest Gump. People will be shocked and surprised once this little engine start to work. It will definitely be a GREAT CONVERSATION PIECE on your desk.
- ★WIDE APPLICATIONS: people bought it for kid's science project, physics/mechanics learning, demonstration on class, etc. It's a well-designed and crafted mechanical toy; great to display basic principle of external combustion engines; fantastic gift for people you love. Many people bought our machines as gift to families, teachers, friends, boyfriends and seldom will our machines failed to cheer them up!
- ★MOST CLASSICAL STIRLING ENGINE: with elegant design and fine workmanship, this is a beautiful piece of art. Many people are satisfied with the fit and finish of our engine.
- ★SAFE FOR KIDS: Complies with the applicable regulations and standards under CPSIA and any other acts enforced by CPSC; passed Toxic Elements Test/Flammability Test/Physical and Mechanical Test of ASTM-963 Standard Customer Safety Specification For Toy Safety.
- ★★★★★We provide free replacement if engine stop working within 365 days. We also provide spare parts free for all our products within 1 year. DjuiinoStar stands behind its products, buy with confidence!
This engine is driven by the temperature differential between the top and bottom plates.
To create enough temperature differential, simply put it on a cup of hot water. The rotation speed depends on the temperature differential: the higher, the faster.
When in good condition, that is, after working for a while and being lubricated, it can reach a speed around 220-250 RPM driven by boiling water.
Please refer to the video attached to learn how to operate and lubricate. This product complies with the applicable regulations and standards under CPSIA and any other acts enforced by CPSC.
It passed ASTM-F963 Standard Customer Safety Specification For Toy Safety Toxic Elements Test/Flammability Test/Physical and Mechanical Test.
Please note that we detached the flywheel from the stand to ensure its safety in shipping.
It's easy to put back.
What's it for: *Funny/educational gift *Kids' science project *Hobby *Physics/mechanics learning *Put on your table *Coffee Timer *Start a conversation
Speed: 60-220 RPM Operation temperature differential: about 54-63°F
Continuous rotation time on a cup of boiling water: about 30-50 minutes
Overall size: 4.06x4.06x4.92in(L/W/H) Size of flywheel: 3.43x0.23in(Diameter/Thickness) Inner diameter of the power cylinder: 0.61in Net Weight: 0.52lb Packing List: *Engine x1 *User Manual x1
Package Dimensions: 4.8 x 4.4 x 4.4 inches