Road milling machine is one of the main models of asphalt pavement maintenance and construction machinery, the main equipment of the asphalt concrete pavement maintenance construction - mainly used for excavation refurbished highways, urban roads, airports, freight yard of asphalt concrete surface layer, but also can be used to clear the road pro package, oil waves, textured, ruts and other defects, can also be used pavement excavation pits and trenches, and cement road surface roughening and dislocation of milling. With road milling machine for milling damaged old overlay, then laying new surface layer is one of the most economical method of modern conservation due to its high efficiency, the construction process is simple, easy to control the milling depth, flexible operation, good mobility, Milling of the old material can be directly recycled, etc., which are widely used for urban municipal roads and highway maintenance projects. Milling form, can be divided into cold milling machine milling milling heat two. Cold milling type configuration power is larger, faster tool wear, cutting uniform particle size can be set to water sprinklers, widely used, the product has become a series; hot milling type due to increased heating device leaving the more complex structure, generally used for pavement recycling operations. According to the direction of rotation of the rotor milling can be divided into Climb milling type two. Wheel rotation direction of the rotor and the milling machine when walking in the same direction as the climb milling type, and vice versa for milling type. Street sweeping, street cleaning, river cleaning www.fekhw.com