Swift Heat is the leading manufacturer of Mica Box Heaters in South Africa as well as a full range of heating elements, temperature sensors and controllers.

Mica box and flat heaters are predominantly used on extrusion heads or dies due to their specific design.  It is highly recommended to use backing plates on these heaters to increase longevity of the heater since warping of the element may occur resulting in burnout due to bad contact between element and die.