How long is the service life of mahjong machine?

3-5 years. The service life of the automatic mahjong table is 3-5 years, and it is used in the chess room at least once a day. The service life of a better machine is 4 years, and that of a worse machine is 3 years. For your own entertainment, once or twice a week, the service life is longer than that of chess room 1 year. If it is rarely used, the service life of the machine will not exceed 3 years in wet weather (such as seaside) and will last for 5 years in dry weather.