The Coil Spring Pendulum arm is one of the most commonly used in factories, which utilizes coiled metal wires to stabilize the cots or aprons. However, even the best coil-spring pendulum arm has a lifespan of 5 to 10 years. After evolvement to solve the disadvantage of the coil-spring pendulum, air forced pendulum has a much longer utility span. Nevertheless, unsteadied air force, noise, and high electricity cost are massive drawbacks induced by using air-forced pendulum arms. From technical progression, the leaf-spring pendulum opens a new methodology that secures in-position cots and aprons while guaranteeing 20 years of utility span, this one-time investment is for now causing the lowest electricity bill in the long run, plus much lower human resources and renewal cost due to long-term usage is capable with leaf-spring pendulum arms.