PHP's Low Density Cartridge Heaters are developed for heating applications not requiring high watt densities nor sheath temperatures exceeding 3000c with maximum watt densities of 30 to 45 watts per square inch depending on applications. The heaters of various sheath diameters can be used in any assembly equipment of machine.
The heater design consists of helically wound resistance coil made from nickel-chrome wire, evenly stretched and strung through holes in a round ceramic insulator. The element assembly is inserted into a Chrome Nickel Steel sheath. This alloy provides the best combination of physical strength and resistance to heat oxidation up to 4500c.
Specially selected grain size and high purity magnesium oxide is used to fill all remaining space inside the ceramic insulator to increase thermal conductivity, dielectric strength, and provide longer operating heater life.
LOW WATT DENSITY CARTRIDGE HEATER - APPLICATIONS
Packaging Machinery
Heat Sealing
Labeling Machines,
Hot Stamping
Plastic Iinjection
Glue guns and Wax pots
Shoe Machinery
Heating of gases and liquids
LOW WATT DENSITY CARTRIDGE HEATER - TECHNICAL DATA
Outer Sheath Material
Chrome Nickel Steel, roll crimped end disc washer of same material.
Maximum operating temperature 300OC
Heating Conductor
NiCr 80:20
Power
± 10%
Voltage
12 to 440 volts
Leakage Current
0.5 mA
High Voltage
800 V
Surface Loading
upto 30 watts/in2
Lead Orientation
A) Crimped on leads : PTFE/ Fibreglass Flexible leads crimed on solid pin emerging from
from the heater
B) Fixed in leads : Flexible Fibre Glass or PTFE leads emerging from within the heater.
