Key Characteristics of Expander 850
Expander 850 is a large surface floor finishing, polishing and grinding, consist with 3 staggered counter-rotating heads for perfect surface levelling. With its rigid head planetary with three large sized 240mm tools, the flatness of the surface and the perfect balance of the floor grinding machine is guaranteed. Expander 850 comes with variable speed, adjustable working pressure and lots of other features which places it among the most popular selling machines.