Features:

- brand new and high quality
- Made of high quality material,
- How it works: A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (working fluid) at different temperatures, resulting in a net conversion of heat energy into mechanical work.
- With good explanations, the teacher can make the explanation process more straightforward and the students can better understand the principles.
- Safe : run freely on a cup of hot water, no need to light an alcohol lamp, safer for children.
- Operating requirements: The start-up temperature difference between the contact point at the bottom of the product and the environment should be greater than 25°C.
- Easy to use: just turn the wheel slightly and it will run by itself.
- Design considered: fine frosted plunger avoids steam leakage and reduces wear and tear.
- NOTE: If there is a lot of friction between the flywheel and the bracket, use a small amount of graphite dry lubricant to quiet it down. Do not use oil as it can cause oily stains.

Specification:

- Wheel Color: Gold
- Material: stainless steel+painted carbon steel+
- Working principle: thermal expansion/cold compression
- Material: aluminum alloy
- Ability training: intellectual development
- Science Toy Type: Biology/Chemistry
- Applicable age: teenagers (7-14 years old)
- Category: Educational Toys Manual Brain Science Experiments
- Speed: 180rpm (max)
- Product size: 12.2 * 10.2 * 10.2cm / 4.8 * 4 * 4"
- Item Weight: 250g/8.8oz


Package includes:

1 * Low Temperature Stirling Engine Model DIY Kit (Optional)
1 * User Manual (English)

Notes:

1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture.
2. Please allow a slight deviation between the data and the manual measurement.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to Australia; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.