Twenty years. Vegetable elevator is also called food elevator. The service life of vegetable elevator is very long. If the operation is correct, the service life is as high as 20 years. The sundries elevator is also called the vegetable elevator, the vegetable elevator, the rice elevator or the sundries elevator. It has the characteristics of small size, full function, smooth transportation and low price, and is widely used in restaurants, canteens, factories and libraries to deliver meals.