The Caloritech™ Tubular Band Heater (Calrod® type*, 127 mm Width) is designed for highly concentrated heating applications, such as clamping on to extruder barrels, nozzles, pipes or vessels. Multiple TBW heaters can be mounted side by side and wrapped with high temperature insulation to further improve efficiency. The unit consists of two tension bolts and two double hairpin heating elements held in place by a stainless steel band with a threaded swivel type clamping device.