The wire cold rolling machine is a specialized cold-rolling production line designed to transform plain hot-rolled low-carbon steel wire/rod into high-strength steel rebar with three uniform crescent-shaped ribs on its surface, significantly boosting the bond with concrete while enhancing tensile strength via work hardening.
Working Principle & Process Flow
Pay-off & Descaling: Uncoil the raw wire coil, remove rust/oxide scale via mechanical or chemical means.
Cold Rolling Ribbing: A set of precision rolling dies applies continuous pressure to the wire, forming three symmetric crescent ribs without cutting the material; the cold deformation also increases yield/tensile strength (often up to CRB550/600 grade).
Straightening & Cutting/Flying Shear: Optional straightening unit, followed by fixed-length cutting for bar stock, or recoiling for coiled ribbed wire.
Control System: PLC+frequency conversion for speed/rib pitch/feed control, ensuring consistency.
