USER BENEFITS:Highly efficient and resilient motor for more power output.Microprocessor electronics: with tachogenerator constant speed control, soft start, overload protection and speed selection.Sanding belt tension: spring loaded, adapts to pipe diameter from 10 to 250 mm.Sanding belt dimension: 618 x 40 mm.Sanding belt replacement: quick and easy.Hand grip directly over the sanding belt for fatigue-free work.Infinitely adjustable belt speed.Grinding weld seam directly on front contact roller with locked front swing arm.Grinding pipes: between two rollers with unlocked front swing arm. The grinding belt wraps around the pipe and adapts to the pipe diameter.