Iron fabricated constant force springs are used for heavy moving objects or components. Made of metal strips, these compression springs are considered as indispensable parts of MRI systems, X ray equipment used for dental treatment etc. Several factors are considered prior to manufacturing of Constant force springs. Thickness and width of raw material are given prime importance while producing these springs. Factors like internal and external dimensions, initial load carrying capacity and end design of springs are also considered to attaint flawless quality of produced springs.