The “brush dry” system avoids the leaking at the end of the work. The cleaning system is very efficient and despite the big dimension the maintenance is very easy to operate as the brushes can be taken on and off fastly. This machine is particularly indicated for every fast maintenance cleaning and for large joints floors. Thanks to its AC traction wheel, the diamond machine requires a reduced maintenance related to the motor, which goes hand in hand with great performances both when starting to drive and when driving over ramps.