Square Cartridge Heaters–Description
The NPH square cartridge heater provides a cost effective, high performance solution for a variety of standard and special process heating requirements. The square configuration
simplifies wiring and installation while optimizing performance in a wide range of solid, liquid, and gas heating applications. Tooling applications are particularly well served by the square cartridge heater approach. Typical square cartridge heating applications include platens, molds, sealing bars, sealing plates and dies. Versatile slot style mounting simplifies installation in small tooling components such as bushings and nozzles and is particularly useful when leads must exit at a specific location on the component surface.
Versatile, Reliable and Cost Effective
The use of square cartridge heaters clamped into milled slots on the tool surface has become particularly cost effective with the advent of modern CNC machining.
Square heaters clamped into close fitting milled slots provideoptimum heat transfer to the application while permitting easy heater removal for system cleaning or maintenance. Swaged square cartridge heaters provide 4 to 5 times the watt density of current square and rectangular cartridge and strip heaters allowing use of smaller and fewer heaters per application. For a given projected heater area on a plate surface, a properly clamped square cartridge can supply as much as 25 percent higher wattage than a round cartridge.
The versatile milled slot mounting method allows heater leads to exit the application at any desired location and permits routing of leads from multiple heaters to a single exit area. Temperature sensors and leads can be incorporated directly into the heater mounting system, reducing wiring complexity in both single and multiple zoned heating applications. Heater lead termination areas can be readily isolated from potential contaminants and protected from physical abuse. Heating characteristics can be adjusted by adding heaters or additional control zones at key locations with only minimal tooling modification. Uniform heating of profiled surfaces and irregular shapes is easily accomplished using the milled slot square cartridge mounting method.
Square cartridge heaters installed in aluminum, brass or bronze blocks can readily replace many costly cast heater configurations requiring extended delivery time. In the event of damage the assembly can be repaired rather than replaced.
Square Cartridge Heaters – Standard, Special Purpose and Custom Manufactured.
The NPH square swaged cartridge design and manufacturing process is geared to provide quick delivery on both standard and application oriented versions of the NPH square cartridge heater.