Backer Marathon Starflex is the most rugged, reliable band heater available. Starflex band heaters are the original aluminum body band and are still the industry standard. These heaters are manufactured by hydraulically pressing a high-temperature heating element into a precision-grooved aluminum channel. The heaters are clamped in place with low-expansion stainless-steel straps for intimate contact with the part. The aluminum channel offers low-mass and high-thermal conductivity for fast heat up. These same characteristics provide excellent cool down properties as well. Starflex bands are also available with water cooling, both as a cool-only band and a heat/cool band.

They are used on extruders, injection molding barrels, blown film dies, and other applications requiring rugged, long-life heaters. Heaters open completely, allowing easy installation and eliminating the need to remove other items from the barrel. You get the durability of a cast-in heater at a fraction of the cost. They are replaceable, unlike cast in heaters that require replacement of the whole heater.