The ability to shape coiled heaters when cold enables to heat up parts with different shapes. These heaters are typically used in nozzles and hot runners in the plastic and packing industries, but also in the railway, chemical (rubber processing), car and glass industries, hot stamping, foundries and wood treatment processes.
During coiling, the gap between turns of coil can be modified to compensate for the heat losses at each end of the coil or to insert the heating element into slots. Coiled heaters can also be cast into aluminum or bronze.
The coiled heater’s sheath material is made of stainless steel; 80/20 nickel chromium resistance wire is used for a melting temperature of 1400°C and it is manufactured with heavily compressed mineral insulator (MGO). The maximum operating temperature is 650°C or 1200°F on the stainless steel sheath and 260°C on the connection and cables.
Coiled heaters can accommodate type “J” or “K” thermocouple sensors. They can also be manufactured with distributed wattage configuration.
Trivolt Industries adopts a stringent internal quality control system (QMSM-2009). Every heater is tested for resistance and dielectric. All our heaters are CSA, UL and CE approved.
All our manufactured heater elements are presently CSA and/or NRTCUL approved and/or CE certified. Our products are manufactured and controlled by our internal Quality Management System. This program allows TriVolt to track the quality of every component that make up our products and monitors the workmanship of every electrical heater and sensor manufactured and assembled in our facility.
TriVolt Industries can also comply with any customer specifications such as “Buy America”. Our facility in Westfield, MA, USA lends itself to perform final assembly of heaters and systems to accommodate any Buy-America content requirement.
We can also generate special test conditions with specific set-ups, use computer models to design or isolate problem areas.
We are continuously improving our manufacture methods and products through testing, research and development. Our high standards extend beyond our product line.