This line is an automated 1865K cylindrical battery cell-assembly line, based on the 18650 model and compatible with multiple cylindrical cells such as 114500, 18500 and 18650; the designed overall capacity is ≥60 PPM (design capability 65 PPM), suited to 24-hour continuous operation.

The line comprises a material-handling conveyor, necking machine, bottom-case welding machine, grooving + coating machine, gasket insertion machine, pre-crimping machine, crimping/sealing machine, voltage & internal-resistance / height comprehensive tester, inkjet coder and tray loader; the customer provides upstream/downstream auxiliary equipment such as X-ray, a large buffer, casing machine, cap welding machine, post-filling weighing, cleaning machine and appearance inspector. Complete process flow: incoming material handling → necking (steel-case mouth shrinking, oiling & dedusting) → bottom-case welding (negative-tab resistance welding, CCD inspection) → grooving & rolling + mouth coating → gasket insertion + short-circuit & withstand-voltage testing → pre-crimping (cap pre-pressing) → multi-pass rolling-crimp sealing (in a nitrogen glove box) → height, voltage & internal-resistance comprehensive testing → QR-code marking → automatic tray loading.

Figure: NEV Cylindrical Battery Assembly Equipment — Layout / Equipment Schematic