Constant torque spring, made by winding steel strip into loop simply like consistent power spring. At the point when springs are counter injury on to yield drum from its regular kind by a heap, power to oppose uncoiling will be happened. In any case, if load vanishes, a steady torque will be yield from yield drum simultaneously. Specifications : Material : Type 301 stainless steel is typically used for most applications. High-carbon steel and other materials may be required.