With increasing amount of coal mine fully mechanized equipment maintenance, local structural deformation in the maintenance process of equipment is also in unceasing increase. In maintenance work, by making a portable cantilever press, the deformed parts with fixed value were shaped to achieve the purpose of repair.On the premise of guaranteeing the maintenance quality, the press has simple structure, convenient operation, low cost, suitable for most of the coal mine repair workshop. Not only labor productivity can be improved, but also the labor intensity of workers is greatly reduced, to achieve the purpose of the mass efficiency.