MW Industries custom manufactures constant force springs in strip widths of .187" to 2",in thicknesses of .003" to .031", and lengths of 12" to 60" in all standard end treatments. They are ideal for motor brush springs, counterbalances, timing mechanisms, cable retractors and retail product displays. A constant force spring is a roll of prestressed strip, which exerts a constant restraining force as it resists uncoiling. Its long extension capability, constant torque and near absence of intercoil friction make it ideal for use in brush springs for motors, counterbalancing applications (such as window sashes), return springs, and cable retractors. MW specializes in constant force springs for use in retail product displays. We offer design assistance, protoype sampling, quick turnaround quoting and delivery, and can supply your needs for any quantity. Please contact us for product samples.