PHP’s High Watt Density Cartridge Heaters are designed and manufactured out of experience of many years, thus the performance and life expectancy superseeds other cartridge heaters.



Heating Conductor grade NiCr 80:20 is evenly wound over a supporting core which is centrally located in a SS304 tube and the inner space is filled with specially selected high purity magnesium oxide. This assembled unit is then highly compressed, converting the core, powder and conductor into a homogenous mass. The bottom end of the heater is welded with a disc washer to prevent contamination.