... the rail to run in a reciprocating way. Aluminium profile hauling machine1. Working principle: DC motor drives chain of the material ... is used ,of hydraulic or pneumatic type.2. Main purpose: Hauling machine works to preven the extruded profile from deformation. 3 ... . Main prarmeters: Rail:NO.25-36I beam ,of required length Hauling force:0-350kg(adjustable) Holding device sizes :to be determined ...