Armed Version Helicopter Horizontal Single Cylinder Vacuum Stirling Model Toy - Silver
Working Theory: burning alcohol lamp provides heat power to make the expansion of gas inside, then the gas molecular internal power increasing and working strongly to the flywheel.
With the help of the rotating wing, heat energy will convert into mechanical work.
Great educational toy, classroom or laboratory experimental teaching aids, cultivate children's interest in physics.
Perfect gift for your friends or families; also the helicopter design is a super addition for home decor.
The stirling engine model produced with quality material and fine workmanship to avoid rusting and prolong life.
Placed the Stirling engine in a horizontal position, use your hand to toggle the flywheel to see if it is smooth.
Check if every sliding parts is clean.
Light the alcohol burner, toggle the flywheel after 2 minutes.
After using it please let the engine natural cool.
Do not touch the alcohol burner burned tube or the metal to avoid burns.
Rods at both ends of the moving joint parts need to regularly add oil lubrication.
Please be careful of the angular parts while the engine working.
.Color: As Shown
.Material: Aluminum Alloy + Copper + Stainless Steel
.Product Weight: 700g
.Package Dimensions: 19*11*14cm
.Package Weight: 750g
.1Set x Stirling Model Toy
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1.Free shipping of all order.
2.You will receive a confirmation e-mail after placing an order and another e-mail after your order has been shipped. The second one will contain the tracking information and some instructions on how to track your parcel.
1.All products can be requested for Return Merchandise Authorization within warranty of return.
2.Warranty of return: 30 days that the package has been received
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Q3 : Refund
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Q6: How do I return a faulty product?
A6 : If you have purchased a product in store that appears faulty, you are welcome to return it to the store for testing, an exchange or refund. Occasionally a product bought online may arrive faulty, if this is the case please contact our friendly customer service
Q7: I want to buy a large quantity of particular products, do you offer volume discounts?
A7 : Please contact us for a quote.
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