Profile: Libesh Engineering Works is a manufacturer and exporter of hot runner systems. Our hot runner systems include manifold blocks, hot tip nozzles and temperature controllers. Semi-hot runner systems contain one drop for two/four cavities, and are applicable for multiple cavities up to sixty cavity molds. Our manifold blocks are made of high thermal conductivity material. Block sizes are calculated according to the center distance of number of cavities required. Thermal expansion and tubular heater wattage is calculated by the processing temperature of the specific polymer material. The spacers and insulation sheet all over the surface ensure minimal heat loss, and prevent thermal influence on surrounding sectors. High thermal conductivity hot tip nozzles are used in hot runner for easy filling under reduced pressure, so that there is proper consistency in molding. Various types of hot tip nozzles are available for various applications. PID soft start controllers are especially designed for hot runner coil heaters and tubular heaters. Multi-zone hot runner controllers are made by individual temperature controller modules assembled in a cabinet. Soft start facility in this controller will help evaporate any moisture present inside the heater. The coil heaters have MgO content, and are therefore hygroscopic in nature.