Low Temperature Stirling Engine Educational Toy with Precision Brass Aluminum Parts,Efficient and Quiet Heat-Driven Desktop Stirling Engine Model for Physics and Science Enthusiasts-HZZ92 Pro Black

What a marvelous Science toy!
Put it on the cup which full with hot waters, give the flywheel a gently push, and get the flywheel going, and then it works like charm. All of your guests want to know what happened, ice-breaking success.

To be admired and to be talked more from your friends if you have this magic stuff. You can bring it home, school office with convenient in your bag.

Quick Start and Precautions:
1, Place the engine on a flat table and add hot water with more than 4/5 capacity of the cup into the flat cup with a mouth less than 88mm.
2, The engine will not start automatically. Under the premise of enough safety, place the engine on the mouth of the cup and heat it for about 20 seconds, then move the flywheel clockwise by hand until the engine runs.
3, It is forbidden to add oil into the engine cylinder, piston, bearing, connecting rod and other moving parts!
4, The engine can run with only a very small temperature difference between the top and bottom, anything hotter than boiling water will damage the device. Do not place it on any objects with high temperature (stove, wood burning fireplace, candle, etc.), otherwise many parts of the engine will be melted.The highest temperature to run the HZZ92PRO engine should not exceed 100°C(212°F).

HZZ92 Pro Stirling Engine Features:
1，Piston Stroke: 8mm
2，Flywheel Diameter: 83mm
3，Base Diameter: 92mm
4，Total Height: 133mm
5，Micron precision Borosilicate glass cylinder and Graphite power piston,
6，Stainless steel screws
7，Low-profile heat insulated chamber pillars
8，Giving flat bottom and good surface contact with heat source
9，Both connecting rods are positively located using low friction POM and stainless steel screws
10，All airtight seals are made with high strength precision screw threads and nitrile O rings
11，Ultra low friction demagnetised and de-greased bearings, NO lubrication required
12，Fully CNC machined, giving crisp, clean and tidy edges all over

Package List:
1 x HZZ92 Pro Stirling Engine
1 x User's Manual