DIY Stirling Engine Model Kit – STEM Science Toy

Experience the magic of real thermodynamics with the TNNJoy Gold DIY Mini Stirling Engine Model Kit! Designed for physics enthusiasts, engineers, and curious minds, this working heat-powered external combustion motor transforms thermal energy into rapid mechanical movement right before your eyes.

Crafted with premium gold-toned anodized aluminum flywheel, stainless steel piston rods, and high-temperature quartz glass cylinder, this precision-engineered desk engine is built to run smoothly and silently. Simply fill the included alcohol burner with 95% ethyl alcohol, light the wick, give the flywheel a gentle push, and watch the physics of 1816 come alive in a mesmerizing display of mechanical rotation.

🎁 Why Science Enthusiasts & Tech Lovers Will Enjoy This Kit:

• Real Thermodynamics: Fully functional Stirling heat engine demonstrating real-world thermal physics principles.
• Premium Construction: All-metal construction featuring gold-anodized flywheel and quartz heating tube.
• Tabletop Display: Fascinating tabletop conversation piece and educational STEM demonstration model.
• Smooth Operation: High-rpm smooth rotation with low friction precision-engineered piston linkages.

💡 Perfect For:

• Physics Teachers, Mechanical Engineers, and Science Hobbyists.
• Unique Desk Decoration for office, home study, or laboratory.
• Thoughtful Birthday, Holiday, or Graduation Gift for tech lovers and tinkers.

📦 What’s Inside Your Custom Box:

• 1 x Fully Assembled Gold Mini Stirling Engine Unit
• 1 x Alcohol Lamp Burner Container with Cotton Wick
• 1 x Spare High-Temperature Quartz Glass Heating Tube
• 1 x Alcohol Filling Pipette Dropper Tool
• 1 x English User Operating Instruction Manual

🛠️ Technical Specifications:

• Product Model: Gold Mini Stirling Heat Engine
• Assembled Dimensions: 16 cm (L) x 8 cm (W) x 9 cm (H) / 6.3 in x 3.1 in x 3.5 in
• Materials: Anodized Aluminum Alloy, Stainless Steel, Quartz Glass
• Recommended Fuel: 95% High-Purity Medical Ethyl Alcohol
• Recommended Age: 14+ Years Old (Requires adult supervision)
• Build Difficulty: ★★☆☆☆ (Pre-assembled / Ready to Operate)

Processing Time: 1–2 Business Days (Fast Shipping from California Warehouse). Standard Shipping: 3–5 Business Days with full online tracking provided.