This machine is a small size maintaining machine researched for asphalt road surface crack, and it is suitable for tracking irregular crack opening of the asphalt road surface. Because of the special design of the saw structure and the suitable choice of the saw material, it can also maintain the softer cement road surface crack. Its structure is compact, the price is reasonable, and the operation is simple. The mainframe adopt the Japanese original G*270 type gasoline engine with good capacity. 【The technical parameter】 Saw diameter 150mm(it is: the highest depth for crack opening is 30mm,and can adjust in the position of 10mm, 20mm and 30mm) Saw width 6.5mm(the crack opening width is about10-20mm) Engine power 1 horsepower External dimensions length*width*height=780mm*500mm*930mm Weight 75kg Tel:0086-373-3020333 0086-13069381711 Fax:0086-373-3051609 E-mail: