The most versatile of all electric heating elements, the
tubular heater is capable of being formed into
virtually any configuration. The basic design
consists of a helical coil of nickel-chromium
resistance wire precisely centered in a metal
sheath. This coil is surrounded by magnesium oxide
powder which is vibration loaded to insure even
density throughout the length of the heater. This
entire assembly is then reduced to the finished
diameter, compacting the sizes, materials and terminations available makes
the tubular heater adaptable to many industrial,
commercial and scientific applications.
