Suction Fire Type Stirling Engine Model, Professional Edition Pure Brass Air Cylinder Heat Energy Stirling Engine for Physics Science Experiment

🌟【Premium All-Metal Build】Constructed with polished brass cylinders, aluminum alloy frame, and precision-machined brass flywheels. Durable, corrosion-resistant materials ensure smooth, high-speed operation (100–2000 RPM) without wear 🔥【Ready-to-Use & Beginner-Friendly】Pre-assembled design requires no debugging. Start instantly using 95% alcohol (not included). Features side air intake and drip lubrication system (0.5ml syringe injections) for hassle-free maintenance 🔧【Adjustable High-Speed Performance】Engineered for power and stability, even at cold starts. Short-stroke design maximizes efficiency, ideal for demonstrating gas expansion/compression principles in physics experiments 🎓【Educational STEM Tool】Observe real-time energy conversion from heat to motion. Perfect for advanced learners, educators, or collectors to explore thermodynamics and mechanical engineering concepts 🛡️【Safety & Compliance】Designed for ages 16+. Heat-resistant components and clear safety warnings for high-temperature surfaces. Compact size (15x8.5x12cm) with protective packaging (17x10x14cm). Ideal for labs, displays, or STEM gifts