The small-scale loader BL series is the equipment specially designed for related continuous productive process of the building machinery, has practicability and such good mechanical performance as the compact structure, flexible operation, reliable performance convenient maintenance, economic and swift etc, and has been extensively applied to loading of the construction material, moving the coal into the boiler and moving the dregs out of the boiler, moving the stones into the limekiln and moving the lime out of the limekiln, landfilling the trench of communication, clearing up the rubbish of the community, loading the trucks, constructing of the farmland etc building site.