Automatic vacuum sealing equipment for large cans. It can seal various large specifications of round tinplate or aluminum cans and has vacuum pumping function, suitable for the production of large cans in the canning industry (especially milk powder cans); This machine has the characteristics of stable operation, high vacuum degree, and sealing quality that meets standards. The key components are processed using high-precision equipment, and the mechanical processing accuracy is improved to ensure the stability of the entire machine operation.