In-line pre-threading lets the mandrel rod enter the tube blank during auxiliary time, cutting cycle time and limiting rolled material temperature loss.
A pre-positioned retaining unit shortens mandrel rod stroke, cutting tube mill cycle time and rolled product temperature loss.
Segmented conveyors transfer mandrels between mills to maintain tube blank temperature while reducing cycle time.
Downstream extracting rolling mill enables lateral mandrel unloading to resolve productivity and pipe quality contradictions.