As metal additive manufacturing enters the volume delivery phase, the industry's focus is shifting from build envelope size to operational sustainability. European and American vendors such as EOS, Trumpf, SLM Solutions, Renishaw, and GE Additive currently hold the mainstream share of metal printing, with a single laser powder bed system costing millions of yuan. However, what truly erodes profit margins are consumable wear parts replaced on a periodic basis—protective lenses, recoater blades, filters, galvanometer scanners, and laser modules—and a supply disruption in any one of these can halt a machine for weeks. Compatibility between equipment and powder systems has become a key factor in selection. Process packages, parameter locking methods, and powder compatibility ranges vary significantly among vendors; on some platforms, powder and process parameters are tightly coupled, and switching powder suppliers requires a fresh round of process validation—a hidden cost that should be factored into investment calculations. On the powder side, the particle size distribution, sphericity, and oxygen content of gas-atomized powder directly affect melt pool stability. Powder reuse requires establishing a ledger that records usage duration and sieving for each batch; the industry practice is to blend virgin and reused powder in a set ratio and control the upper oxygen limit through periodic sampling. At the operations level, a critical spare parts list should be established when equipment arrives: stock 3–6 months' worth of protective lenses, recoater blades, filters, and seals based on consumption rates; for long-lead items such as galvanometer scanners and laser modules, prioritize securing regional consignment or spare parts pool services from vendors. Series production is about continuous operating capability, and spare parts management directly translates into equipment uptime. Value for powder buyers: (1) Before purchasing, confirm the powder compatibility range and parameter locking method of the target equipment platform, and incorporate the process validation cost of switching suppliers into price comparisons; (2) require powder suppliers to provide batch inspection data on particle size distribution, sphericity, and oxygen content, and establish a reuse powder ledger and sieving records; (3) for long-lead spares such as galvanometer scanners and laser modules, prioritize signing regional consignment or spare parts pool agreements with vendors to avoid supply disruption and downtime.