Continuous spiral flighting machine for manufacturing industrial screws. Helicoid flighting is formed by passing a metal strip through conical rolls under pressure. max strip width: 200 mm max strip thickness: 11 mm left hand or right hand spiral direction optimum roll speed: 80 rpm coil capacity: 5 tons Weight of machine: 12 tons power: 75 HP Including roll grinding attachment: permits the re-grinding of the conical rolls without removing them from the machine. Including hydraulic guillotines: suitable for cutting all flights. Standard pitch: outer dia dimension is equal to pitch dimension Short pitch: pitch dimension is less than outer dia dimension Long pitch: pitch dimension is greater than outer dia dimension Ribbon flight: enlarged inner slide using narrow raw material Cupped flight: flighting blade not perpendicular to center shaft Stainless steel: flighting can be rolled but range is limited by the greater hardness of the raw material