Forty years of experience in the construction of Winding Expandable Mandrels
The Winding Expandable Mandrel (WEM) is a symbol of our commitment to innovation and precision in the industrial engineering sector. Meticulously designed for superior efficiency, our Winding Expandable Mandrels are set to transform your winding processes completely.
Our Winding Expandable Mandrel achieved the goal of maintaining the diameter of the coils of the big transformers despite the maximum and minimum width required by the customer.
This is possible, as we build them using a carrying structure made of a central axle and two flanges, an upper and a lower one, joined by a set of screws to build a monolithic structure able to support the torque. Two running supports are assembled on the central axle, one opposite to the other, and both handled by two screws, a right and a left one. The steel beams are assembled on running guides operated by a running support to act as levers that build the cylindrical shape.
The wooden coating allows the final work to be done, thus obtaining the perfect cylindrical shape. Opening and Closing process is motorized from a minimum diameter of 600 mm, while for the smaller sizes it is manual or with a cordless screwdriver.