A cold log saw is located before log gas heated furnace and is mostly used before induction heaters. The purpose of the cold saw is to cut logs into billets according to the preset cut length. It's designed also to be used in cast-house to cut heads and tails of cold just-cast logs. The cut length is measured through a laser beam which points toward the advancing log. The log is firmly clamped very close to the cut point so to keep the billet steady whilst cutting. The blade is lubricated with a mist-model device so to minimize use of lubricant.
A double cut cycle can be used which will allow the operator to cut the head end of the incoming log to a length that when combined with a short tail end of exiting log the two pieces will be the correct required billet length. A log saw gives the advantage of a flat-to-flat coupling surface when a billet is to meet the next in the press container. This prevent potential formation of air bubbles trapped between two consequential billets. The saw works with an electrical motor and its pivoting (cutting) stroke is hydraulic. The cut feed is controlled and programmable. Automatic blade wear sensors are provided.