Tong Engineering creates and manufactures grading, washing, polishing, sorting, conveying, bulk handling, box handling, and entire potato and vegetable processing systems for the food sector. Vegetable washers, barrel washers, de-stoners, graders, optical sorters, inspection conveyors, elevators, hoppers, bulk fillers, box fillers, palletizers, and integrated processing lines are among the equipment supplied by the company for potato, carrot, onion, parsnip, and root vegetable operations.

Tong Engineering serves fresh produce packers, potato processors, and snack manufacturers, offering custom-built machinery and comprehensive solutions for infeed, cleaning, grading, storage, and packing. The company provides installation, automation integration, and after-sales technical support for food and agricultural processing plants.