ZOSTER V4-Steam Engine Mini All-Metal Retro Model - Physical Science Experiment Kit with Reverse Gearbox for Kids & Adults | STEM Education Toy, Collector's Item, Home Decor Display

Features

over 14 years old

.Parameter: Cylinders：4. Cylinders (Bore 8mm × Stroke 8mm). Axle：Ï3mm. Valve Gears：Walschaerts. Pressure：3kg/c㎡. Temperature：50～120℃. Lubricator：Screw-cap-type

.Exquisite Appearance: The model of the steam engine is small and novel, and can be placed in the palm of your hand like a treasure. It is exquisite and mini.For Age: 14 years and older

.Significance and Value: By operating the steam engine model, you can learn the operating principle of steam more intuitively. At the same time, this model is a collectible with collectible meaning. Can also be used for steam ship models, car models, small generators, etc.

.Instructions for Use: Both ends of the crankshaft are fixed with bearings, which runs smoothly and has higher transmission efficiency. Please connect the boiler by yourself ( boiler is not included), add steam cylinder oil to lubricate all parts, connect Ï4mm copper pipe, pressure between 2-4, open the steam valve

.High Quality: Using metal materials, fine production, sophisticated technology, bright surface color, delicate and beautiful