Advantages: simplicity and low cost. Disadvantages: the whole thing of the departure gate (increased consumption of material), the cycle time depends on the cooling time sprue, and not from the part itself, the need to manually remove the gate from the cast, keep it and recycled. After removing the sprue inlet location, usually subject to additional clean-up. To improve TPA performance, reduce waste and maintain the desired temperature of the melt processing of used hot runner gating system (SCS). Structurally simple SCS consists of only one heated nozzle (nozzle) with one or two heating zones, while universal SCS consists of a heated manifold (manifold), which fit one or more nozzles. To operate the heaters GCS mold must have a thermostat to regulate the number of zones equal to the number of thermocouples in the system.
Making holodnokanalnoy system produced by the company carrying out the production of special items molds and carrying out the assembly of the mold. Production of hot runner systems – costly, and at this point in the world in a situation where there are certain companies that manufacture hot runner elements of the supply and assembly facilities, as a small manufacture of molds is not profitable to have its own facilities for manufacturing of hot runner systems. Manufacturers of hot runner systems can be divided into three groups of companies: Manufacturers of standard elements for mold described above; major manufacturers of molds that have the possibility of the production and sale of GCS: Schottli AG Mould Technology (Switzerland), Mold & Hotrunner Technology AG (MHT) (Germany), StackTeck (Canada), Husky (Canada); companies that specialize in the manufacture of hot runner systems and controllers to them – Incoe International * (Germany), Guenther HeissKanaltechnik GmbH (Germany), THERMOPLAY SpA (Italy ), Heitec Heisskanaltechnik (Germany), Hotset Gmbh (Germany), i-mold GmbH & Co.