The vending machine spring is one of the earliest mass production and sales products in our company. This product is mainly used in all kinds of intelligent high-end vending machines. The vending machine spring is different from the pressure spring products, the pressure spring products mainly use the rebound force of the spring, and the working principle of the vending machine spring is the torque force. When the spring rotates, it can sell the items placed in the gap of the spring by using torque.