From the video you will learn how to choose a snow blower:

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Self-propelled gasoline snow blower: types, operating principle, rating of the best
Self-propelled snow blowers move with the help of a built-in mechanism, unlike non-self-propelled ones, which need to be constantly moved manually. That is why a self-propelled gasoline snow blower is easier to use. With its help, you can clear both loose and compacted snow, and the throwing range of the mass (10-12 meters or more) allows you to quickly clear an area of ​​several hundred or thousand m2.

With this machine you can quickly clear the area even from compacted snow

How a Gasoline Snow Blower Works
Snow removal machines are powered by electric or gasoline traction. Among the latter, self-propelled and non-self-propelled machines are distinguished, depending on the presence/absence of their own movement mechanism. There are several hundred varieties of such models, but the principle of their design is the same. The unit consists of:

Metal body.
Working mechanism.
Gasoline engine.
Shnekov.
A rotating shaft that drives the augers.
Wheeled or tracked installation, thanks to georgia mobile database the device can easily move on various surfaces.
Handle and control panel.
A discharge chute for throwing snow mass over a significant distance – 7-12 meters or more.
Self-propelled snow blower device

The machine is driven by a gasoline engine. Throughout the entire journey, it is controlled by a person holding the snow blower by the handle. The blade, located at the bottom, constantly cuts the snow mass, which immediately falls on the augers and moves to the chute. From there, it is thrown a considerable distance due to the engine. The direction and range of throwing, other parameters can be adjusted independently using the dashboard.

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Video - Self-propelled and non-self-propelled snow blowers

Track type.
The wheels are mounted on all non-self-propelled and on some self-propelled models. The tread has a specific pattern that improves traction and thus reduces the likelihood of slippage. The tire is also equipped with special spikes, which allows the unit to move even on uneven surfaces.