An asphalt milling machine grinds and chews asphalt into a coarse powder for easy recycling. It requires two people to operate and has large teeth and grinding wheels made of strong materials. The machine is important for harvesting asphalt from roads during construction and for recycling it for future use. Smaller machines are available for consumer needs.
An asphalt milling machine is a type of grinder specially made for grinding and chewing asphalt of many sizes. The purpose of an asphalt milling machine is that, by reducing large pieces of asphalt into a coarse powder, the asphalt can be easily recycled. Typically two people are required to operate a large asphalt milling machine, because one makes the cut and the other acts as a lookout to ensure the milling machine is picking up the correct asphalt from the road. While there are smaller units for consumer needs or small builds, this term is often used to refer to much larger machines.
The main job of an asphalt milling machine is to grind and chew the asphalt. It begins with the loading of the asphalt, which takes place via an internal conveyor belt which carries the collected asphalt further into the machine. Once in the milling machine, large teeth and grinding wheels take large chunks of asphalt and greatly reduce their texture to a powder. Teeth and grinding wheels are usually made of a strong material, such as dense steel or diamond.
Turning large chunks of asphalt into powder with an asphalt milling machine is often considered important for several reasons. This asphalt is commonly harvested from roads during construction to ensure the road level does not get too high from successive levels building up. In the past, new asphalt was laid on top of old and broken asphalt to repair it, but this caused the roads to be too high, leading to functionality problems. Turning asphalt into powder also means that it can be easily recycled and reused for roads or other asphalt applications.
Its large size often requires two people to work the asphalt milling machine. One person is responsible for making sure the milling machine is only tearing up the correct section of road, because hitting valves or manhole covers can damage both the milling machine and the road. The second person operates the milling machine, operating the conveyor belt, grinders and moving the machine itself.
Smaller asphalt mills generally range from about 10 to 15 inches (25.4 to 38.1 centimeters) in width. While it performs a similar task, this smaller machine is often not referred to as such because it is primarily meant for the needs of consumers and small builders. When we talk about an asphalt milling machine, we are most commonly referring to the larger units that excavate asphalt from the street.
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