Industrial equipment is the shop-and-plant category: generators, air compressors, welders, lathes, mills, pumps, material handling like pallet jacks and forklifts, and manufacturing machinery. Fabricators, machine shops, warehouses, and small manufacturers list gear when they retool or downsize. Buying used means checking the power requirements — single versus three-phase voltage — the hours and duty cycle, and whether tooling, manuals, or spare parts come with it. Look for signs of hard service like overheating, worn bearings, or jury-rigged wiring, and ask why it's being sold. A clean machine from a shop that maintained it can run for decades. Meeting in person lets you power it up and watch it cycle. Northeast manufacturing turnover keeps a steady supply moving through New Jersey.