Low Temperature All-metal Stirling Engine Model Toy for Developing Intelligence

★EASY OPERATION: Place this engine over a cup of boiling water, wait 20 seconds, then slowly rotate the flywheels. The engine will run silently and slowly for 20 to 30 minutes. When the flywheels are revolving, the power piston produces weak sounds even quieter than your clock's ticking sounds. It is imperative to use boiling water as the heat source for this model since it requires a comparatively sizeable operating differential between the two panels (we will explain why in the explanation).

★UNIQUE AND GRACEFUL: Twin flywheels operate concurrently when you give them a moderate turn and are perfectly symmetrical on both sides of the elegantly curved arm. Its hollowed-out sections carved into flower shapes greatly enhance its look. The top panel's four golden fasteners and four aluminum alloy feet make this silver engine stand out. This engine will shine for years thanks to a unique anodizing process. It'll look fantastic as a desk decoration.

★AN ENGINE WITH FINEST WORKMANSHIP & MATERIAL: Crucial components are precisely manufactured with a tolerance of 0.002 mm, using SUJ2 bearing steel. The ultra-high hardness alloy and high precision size make the wear resistance and smooth interaction between those parts possible. After heat treatment, the bent rod has a high hardness and is very stable, holding two aluminum alloy flywheels precisely in place. It is intended to follow you for years, and we sincerely hope and trust that it will!

★WIDE APPLICATIONS: In addition to being a fantastic conversation starter for those around you, it will also make a great desktop piece for your friends and colleagues, a great way to pass the time when things are wearisome, a stress-relieving physics toy for those in the office, and an impressive gift for families and friends, especially those who love engineering and physics. It is an excellent tool for teaching physics, illustrating the fundamentals of a Stirling engine, and showcasing design excellence.

★FANTASTIC GIFT FOR EVERYONE: This shining engine might be a spectacular gift that impresses someone you adore, especially if you're often lost on what to get them. It's stunning and humorous. Try this one, primarily if you've already owned a Stirling engine—I'm sure you won't regret it.

This engine's working temperature differential is significantly higher than our other engines, at about 40–50°C/72–90°F. The main reason is that instead of using glass, we employ a power piston of bearing steel! The glass piston weighs about 6.5g/0.23 oz, but the power piston weighs about 26.5g/0.93 oz.

To play this engine, fill your mug with hot water, wait 20 seconds, then gently push the flywheels. The engine will then spin on its own for 20 to 30 minutes. I'm not sure what you'll do with the engine, but every morning when I arrive at work, I set mine on my cup and watch it spin for a bit of while after ensuring my boss isn't closed.

It is not intended for children. I would advise against this one if you are new to Stirling Engine; moreover, because it is pricey, I would advise against giving it as a gift to someone who is not close to you. You have a large selection of LTDs in our store for both situations. This engine will go for years with you or the people you care about. Should it be a gift, they will remember you each morning:-)

No parts need to be lubricated to operate more quickly. Its endurance is ensured by the highest workmanship and finest material. This engine has operated well without lubrication for many years.

Features:
Speed: 40-120 RPM
Working Temperature Differential: about 72-90°F
Material: 6061 aluminum, bearing steel, EVA foam, and PC
Dimensions: 4.13x4.13x5.55in(L/W/H)
Weight: 1.13lb