The machine is driven by gasoline engine.It uses diamond sawblade to cut such as concrete pavement, concrete marble slab, terrazzo construction .It is especially used in highway construction building. Main technical parameters: 1. max. saw diameter: 500mm 2. max. cutting depth: 170mm 3. rotation speed of spindle axis 2200r/ min 4. water tank 55L 5.engine power 7KW.