Asphalt Milling Machine
Asphalt milling is the process of grinding up asphalt that can then be recycled. The process came about because many streets were getting higher and higher on curbs, and therefore drainage of the roadway was becoming an increasingly bad problem. The first production milling machines were called Gallions after their manufacturer, galion iron work. These machines resembled graders in shape and size. The difference was there was a 30-inch-wide (760 mm) milling head where the scraper blade would normally be. The cutter drum was set into action by a rather large hydraulic pump.
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Compact large milling machine that can be equipped with milling drum assemblies of 1.50 m, 2.0 m or 2.20 m working width. Three selectable engine speeds enable a broad range of applications: large-scale surface course rehabilitation, complete pavement removal at full depth, fine milling, and many more. Automatic machine alignment using PTS, intelligent ISC track drive control for maximum traction, and low operating cost due to the WIDRIVE machine management system. The milling machine can optionally be equipped with the Wirtgen LEVEL PRO levelling system.
The main task of an asphalt milling machine is to grind and chew up asphalt. It starts with loading the asphalt, which is done through an internal conveyor belt that brings collected asphalt farther into the machine. Once in the milling machine, large teeth and grinders take large chunks of asphalt and greatly reduce their consistency to a powder. The teeth and grinders normally are made from a strong material, such as dense steel or diamond.