The glass piston has a crack. Can I buy a new piston?

Please contact us though Amazon message system, which is private, and we will mail you a new piston free by USPS. Thank you. Regards, Maria

Does it work on your hand ?

It requires temperature difference of about hot water (~200F) vs room (~70F) so ~130F either way to run great. Assuming your hand is 98F and you are in Minnesota in February (-30F) then it will work just fine ;)

How do you lubricate it with graphite?

Look for lock/key lubricant. It is sold at DIY, Hardware, and Stirling engine stores.

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DjuiinoStar Low Temperature Stirling Engine

DjuiinoStar Low Temperature Stirling Engine

Product ID: 267012889

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Details

Size
Brand
DjuiinoStar
Theme
Science
Age range (description)
Kid
Item dimensions L x W x H
10.3 x 10.3 x

🎁Perfect gift

⚙️Mechanical marvel

🌡️Low temp operation

Description

🚀 Ignite curiosity with every spin!

🛡️ KID SAFE - Complies with safety standards for peace of mind.
🔥 EASY TO START - Simply place on hot water and watch it go!
🎨 ELEGANT DESIGN - A stunning piece that doubles as art and science.
🎓 EDUCATIONAL TOOL - Ideal for science projects and classroom demonstrations.
🔄 365 DAY GUARANTEE - Buy with confidence, we’ve got your back!

The DjuiinoStar Low Temperature Stirling Engine is a beautifully crafted mechanical toy that operates on a simple temperature differential. Perfect for educational purposes, it serves as a conversation starter and a unique gift. Safe for ages 13 and up, it complies with all necessary safety regulations and comes with a 365-day guarantee for peace of mind.

Specifications

Product Dimensions	10.3 x 10.3 x 12.5 cm; 240.4 g
Manufacturer recommended age	13 years and up
Item model number	DLTD-303
Educational Objective(s)	Mechanical
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
Material Type(s)	PVC Stainless Steel Steel
Color	Low Temperature
ASIN	B077LHS81K

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$3242

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TrustScore 4.5 | 7,300+ reviews