Discover the BT-1810B Automatic Electrical Cylindrical Cell Sorting Machine, a high-efficiency solution for sorting 18650/21700/26650/32700 cylindrical cells. With AC220V 50/60HZ power, it offers precise internal resistance and voltage testing, sorting up to 10 levels. Achieve 3500-4500 tests per hour with this compact, pure electric design machine, perfect for battery production lines.