4 station Automatic Cold Heading Machine for M3–M6 Bolts, Rivets & Precision Fasteners
The KD406 Automatic Cold Heading Machine features a unique two‑stage power transmission system (motor → flywheel spindle → crankshaft + side shafts for transfer and cutoff). Designed specifically for M3 to M6 fasteners, it completes head forming, shank profiling, and through‑hole piercing in a single cycle. Capable of processing QT500‑12, HT300, SKD11, SKD61, 20CrMoTi, 42CrMo and other alloy steels, the KD406 delivers high precision, high quality, and high speed for mass production of bolts, rivets, machine screws, automotive fasteners, structural non‑standard parts, and more.
