Anupam Heaters & Controls Pvt. Ltd. Supplies Air Cooled Ceramic Band Heaters. Anupam Heaters & Controls Pvt. Ltd. Is an ISO 9002 accredited company. Air Cooled Ceramic Band Heaters are designed for super efficient and economical cooling on extrusion and blow molding machines. Air Cooled Ceramic Band Heaters is used for Melting the plastic granules prior to extrusion. It has the optional feature of perforated heater with fins to provide faster cooling.