Sweden trading corporation has introduced bar heater. Basically this heater is used in corrugated paper making machines of different sizes and capacities to heat up the rollers. It includes 9.Tube elements fixed on a terminal box, and it has one supported bar in the middle, which is longer than tube elements. Sheathing of heater is ms or ss helical coil of resistance wire duly embedded in refractory material inserted into the sheathing. This type of heaters have facility of quick replacement of element, thus production does not suffer.
