Automotive body welding shops handle body-in-white stampings: the parts are large, thin-skinned, easily deformed, and accompanied by weld slag and spatter. Material cages must be part-specific and dimple- and pressure-resistant. A generic cage loaded carelessly will dent doors and fenders into scrap directly—the loss far exceeds the price difference between cages.
Build a non-standard skeleton according to the outer shape of the part; add contoured rubber strips or nylon support blocks inside in layers, so parts are held suspended without touching each other. Wire diameter around 5 mm is sufficient; the focus is not how heavy the cage is, but whether the inner support points match the part's contour—misaligned support points equal wasted effort.
The welding environment has weld spatter and slag; cage surfaces must not leave soft rubber mats exposed long-term, or they will burn holes in them. Choose heat-resistant nylon or stainless-steel-sheathed support strips. The shop has oil and grinding dust; powder-coated cage surfaces are smooth and easy to wipe clean, and more dirt-resistant than galvanized.
Body-in-white parts demand high precision; material cages move through the shop along AGVs or tow tractors, so the cage bottom must have tow hitches and positioning pins to align precisely with AGV stopping positions. Cage numbers must correspond one-to-one with part numbers—one cage, one part, one label—to prevent loading onto the wrong station.
Nanjing Tongnuo Warehouse Equipment Manufacturing Co., Ltd. was founded in 2013; we take on non-standard customization of auto parts material racks and can build contoured liners based on part digital models, verifying cage flow reliability between welding lines together with the OEM's logistics cycle.