Floor Grinding Machines( Floor Grinders)£¬concrete grinder. Grinding large area effectively and can work continuously for long time. There are 2 types for your option: A type: 1000 revolutions per minute B type: 2000 revolutions per minute A type can grind concrete floor and adhesives effectively. B type is designed for clearing the worn epoxy coating which would be the best choice for renewing painting ground. Features: ¡¤ Dust free working environment can be ensured with vacuum cleaning devices. ¡¤ High working efficiency, high rotation rate and can work continuously for long time. ¡¤ 10kg iron counter-weight is optional help to grind worn epoxy ground. ¡¤ Adjustable grinding depth. ¡¤ Extra coarse, coarse, medium and thin 4 types corundum grinding disks are for your option. Extra coarse type is for clearing worn epoxy ground. ¡¤ Optional cheap combined grinding head. ¡¤ Aero rubber material shock absorption, flexible and durable. ¡¤ Imported overload protection switch avoids leakage and phases protection. Technical parameters: Model L550A L550B Power 5.5kw/7hp 5.5kw/7hp Power Requirements 380V 50Hz 380V 50Hz Rotation Speed 1000rpm 2000rpm Weight 130kg 132kg Working Width 250mm/10 inch 250mm/10 inch Working Efficiency 150 ©O/h 160 ©O/h Packing Dimension (mm) 1080¡Ã480¡Ã1150 Accessories: Model Part Name Specification Color D-250T Grinding Disk Extra coarse grade Green D-250A Grinding Disk Coarse grade Blue D-250B Grinding Disk Medium grade Red D-250C Grinding Disk Fine grade Yellow D-261 Wire brush DZ-150 Iron counter-weight D-50 Combined grinding head 3pcs/set