Concrete Power Trowel Supplier in nagpur. The Concrete Power Trowel with electric motor is a high efficiency, light weight machine for floating & troweling concrete surface. the machine can be operated at two speeds 115 and 57 R.P.M. to obtain the desired output. This machine is provided with two types of finishing tools. A disc for floating and a set of four bleds for troweling. to obtain fine finish the blade angle should be control.