Sunnytech Low Temp Stirling Hot Air Engine Electricity Generator Model DWCL-01-M14-03-L

The stirling engine is produced with high-quality materials and elegant craftsmanship. This model, DWCL, features a gray color and can reach speeds of 180-200 RPM. The starting temperature difference is about 20°C (68°F). The materials used include carbon steel, nickel-plated carbon steel, stainless steel, glass, bronze, PVC foam, and plastics. The size is Φ89135mm (3553in), and the weight is 150g (0.33Ib). The package includes 1 stirling engine and 1 very detailed user manual.

Another model, the M14-03-L in black, has a speed range of 1300 to 1500 RPM and weighs 800g (1.76Ib). Its dimensions are approximately 19010095mm (7.483.933.74in). Spare parts are available, so customers can contact the manufacturer if they need any replacement parts.

This stirling engine is a fantastic, smartly designed device that runs exceptionally well. It is made with extreme care and attention to detail. The base features a mirror-finish stainless steel, the cylinder liner is made of glass, and the engine uses precision bearings and bearing steel shafts. The zinc alloy flywheel and all other parts have undergone surface treatment to prevent rusting. The engine is oil-free and noise-free.

The engine's quiet and fast-running performance is remarkable. It only requires a single lever to activate, making it incredibly quiet. Two miniature magnets, one in the center of the black base and the other at the bottom of the glass cylinder, are self-aligned and attract each other, allowing the engine to run at high speeds for over 24 hours continuously, as long as there is a constant power supply. One customer even placed the engine on a USB-powered hot plate and enjoyed watching it run on their desk for weeks.

This stirling engine also features an attractive, colorful LED. The heat from the high-grade alcohol fuel causes the engine to run rapidly, generating electricity that powers the LED, resulting in a mesmerizing display of changing colors. It is a truly imaginative and captivating toy.

The overall construction of the product is extremely well-made. The aluminum alloy plate base has a metal texture that adds to its elegant and refined appearance. The cylinder and power piston are made of high-hardness bearing steel, ensuring long-lasting, wear-resistant performance even at high speeds. The heating cylinder is constructed from heat-resistant quartz glass, which is more durable and less prone to breakage than ordinary glass.

Operating the stirling engine is straightforward. Simply fill the alcohol burner with 95% alcohol (the recommended fuel), light it, and let the flame heat the round-ended cylinder for about 20 seconds. Then, give the wheel a gentle push, and the engine will start running smoothly. It can operate continuously for 8 hours or more without any issues, as verified by one satisfied customer.

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