J06D Vertical Gamma Type Stirling Engine Model, Mini Hot Air Engine Educational Demonstrator, External Combustion Physics Science Kit, Metal Collectible Desktop Display

Specifications: Material: Brass + Stainless Steel + Aluminum Alloy Model: J06D Form: Ready to Run Flywheel Diameter: 1.14″ (29mm) (including pulley) Starting Method: Manual Fuel: 95% alcohol Product Weight: 0.25 lb (114g) Package Weight: 0.77 lb (350g) Product Dimensions: 2.44″ × 1.65″ × 2.83″ (6.2 × 4.2 × 7.2 cm) Package Dimensions: 5.91″ × 3.94″ × 3.94″ (15 × 10 × 10 cm) Packing: Box Ages: 16+

• 【Classic Gamma Type Design】Featuring a vertical γ-type layout with separate displacement and power pistons, this model showcases visible thermodynamics in action through smooth piston and flywheel movement, merging science with mechanical elegance.
• 【Heat Powered Operation】This engine runs solely on the heat from the included alcohol lamp, requiring no batteries or electricity. Watch as air expansion and contraction create continuous, mesmerizing flywheel rotation, demonstrating pure energy conversion.
• 【Precision Metal Construction】Crafted from high-quality brass, stainless steel, and aluminum alloy with CNC machining, this model ensures excellent balance, corrosion resistance, and long-term durability for reliable operation and a lasting polished finish.
• 【Educational STEM Demonstrator】An ideal tool for visualizing physics and engineering principles like thermodynamics and energy conversion. Perfect for classroom demonstrations, personal study, and hands-on STEM learning projects for enthusiasts.
• 【Display Ready Collectible】Arrives fully assembled and ready to run. Its compact size (approx. 2.44 x 1.65 x 2.83 inches), fine craftsmanship, and captivating motion make it a standout decorative piece and a thoughtful gift for collectors and hobbyists.