Resistance Boxes

We have carved a niche as one of the dominant Punched Steel Resistance Boxes Manufacturers and Exporters based in India. With the use of crane control tools, we make available Resistance Boxes that are designed for both A.C. & D.C. applications. Our Resistance Boxes are used in winches, E.O.T Cranes, Rolling Mills, Steel Plants, Flour Mills, Cement Plants, Power Plants, Coil Mines etc., for speed controlling and developing of higher starting torque.
Details :

• In this case the resistor grids consist of corrosion resistant stainless steel wire or strips.
• Current rating generally ranges from 7 Amps to 80 amps continuous
• Higher ratings are possible by using multiple parallel paths.
• The size of the wire is determined based on the technical data of the motor on which the Resistance Box is to be connected
• The drawn resistor material is uniform in section and free from any flaw or unevenness which is likely to cause local heating
• Suitable sizes of strips / wire are employed to give a wide range of current ratings
• The Grids are supported in such a way that the adjacent Grids cannot touch each other even under the most severe conditions of service
• The resistor elements consists of a continuous length of resistance wire or strip of uniform section formed into the required number of loops and bent so as to form frames with flanged edges similar to an element