Refrigerator Wire Shelf Multi Head Welding Machine The HW-AM1400A is a 1400mm multi head welding machine for refrigerator and freezer wire shelves built for Mexican, Brazilian and US appliance plants that need fast model changeover on coated wire shelves. It combines a rigid stress-relieved frame, a 160 kVA medium frequency DC welding transformer and a PLC touchscreen HMI, so a single operator can hold consistent nugget strength across a full shift. Why Buyers in the Americas