HMR900 concrete power trowel trowelling concrete surface for the first pass with plate and trowelling Characteristics : High efficiency ,saving labor force ,Its efficiency is much times of manpower. It is popular with road surface ,boatyard, aerodrome,floor and so on .And it is also applied for the constructionjobsite which with no electricity. 1.Plate diameter 900mm 2.gasoline engine model Honda GX160 3.Gasoline Power 5.5ph (4KW) 4.speed of vane 66-132r/min