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company understand what machine or machines they will need for the project ,” stated Kyle Hammon , technical sales manager with Astec Industries , Chattanooga , Tennessee . “ It might be a deep cut that requires a heavier , high horsepower machine . You don ’ t want to be caught out in the rain with a smaller machine that may not be best fit for the project . This could cause a slow pace , loss of production , and potential damage to their machine .”
You will want to ask the milling subcontractor whether the machine they will be using on the project is able to handle the cut width , cut depth and production levels necessary to effectively complete the work in the given timeframe .
“ Milling contractors have usually milled a wide variety of materials at different depths ,” Chastain said . “ This experience gives them a baseline to go off from . Not to say there isn ’ t a curveball thrown at them from time to time . Good ones know how to work through challenges .”
Knowing about the technology that the sub will be using and their comfort level with it is key .
“ The type of cutter drum and capabilities of the grade and slope control system are important ,” Hammon said . “ The style of cutter drum will significantly impact the quality of pattern and production rate the machine can achieve . Drums with narrower spacing allow milling machines to achieve a higher grade of longitudinal smoothness in the milled surface , though they will limit the machine in cut depth and production rate . Double-hit drums provide the ability to increase longitudinal smoothness at higher production rates , but they will still be more limited www . callape . com [ 32 ] 1.800.210.5923