Common failure causes
Wrong watt density, insufficient heat transfer, loose mounting, excessive temperature, moisture, corrosion and uncontrolled operation are common causes of heater failure.
Impact of installation
Hole tolerance for cartridge heaters, surface contact for band heaters and liquid level for immersion heaters are critical. Improper installation can significantly shorten service life.
Control system
Thermostats, thermocouples, PT100 sensors, SSR or SCR power controllers help heaters operate safely and consistently.
Ways to improve service life
Selecting material suitable for the process, using proper temperature control, preventing dry operation and making periodic checks improve heater life.
Frequently Asked Questions
Why do heaters fail quickly?
Usually due to wrong selection, poor heat transfer, dry operation or uncontrolled excessive temperature.
How can heater life be improved?
With correct watt density, suitable material, proper installation and reliable temperature control.