Rotary drum cutters or rock cutters are hydraulic excavator attachments designed to cut rock or concrete in areas where conventional blasting can not be done.

Benefits of rotary drum cutters
       low vibration levels, almost vibration free.
       low noise levels.
       accurate excavation profiles, due to their low energy impact cutting action,
       drum cutters can be used to create accurate, smooth surfaces.
       small particle size, material produced is ideally sized for use as back-fill without need for expensive crushing.
       high production rates in soft to medium hard materials.

Applications
       Tunnelling
       Trenching
       Demolition
       Refurbishment
       Quarrying
       Foundation work
       Under water excavations
       Forestry clearance
       Soil mixing
       Slag removal in steel industry