Tubular versus cartridge heaters

Table of contents

Choosing the right heating element is crucial for achieving optimal performance and efficiency in various industrial and commercial applications. Two common types of heaters—cartridge and tubular heaters—each offer unique benefits tailored to specific heating requirements. This guide will explore the differences between cartridge and tubular heaters, provide insights on selecting the right heater for your needs, and answer common questions about their lifespan, watt density, and maintenance. Understanding these factors will help ensure you select the most effective heating solution for your application, enhancing both performance and longevity.

What is the difference between cartridge and tubular heaters?

The choice between cartridge and tubular heaters depends largely on the specific heating needs of the application. Cartridge heaters excel in delivering high-density heat to small, confined areas with precision, making them ideal for applications like mold heating and small-scale industrial processes. Tubular heaters, on the other hand, are more versatile and better suited for applications requiring larger area heating.

How do I select the right tubular heater for my application?

When selecting a cartridge or tubular heaters, please consider:

  • Material: Choose the sheath material based on the environment (e.g., stainless steel for corrosive environments).
  • Wattage and voltage: Match the power and voltage specifications to your system.
  • Shape and size: Ensure the heater fits the physical dimensions of your application.
  • Operating temperature: Choose a heater that can operate at the required temperature without degrading.

What is the life span of a cartridge or tubular heater?

The life span of a cartridge or tubular heater could be several years. However, this depends on several factors such as quality of the material, operating temperature, number of cycles, environmental conditions and other factors that may influence the life span negatively.

What is watt density and why is it important?

Watt density is the amount of power (watts) per unit area  of the heater’s surface. It is important because it determines how quickly the heater can reach the desired temperature. High watt density is ideal for applications requiring fast heating, while low watt density is better for more delicate heating tasks.

How can the operating life of a cartridge and/or tubular heaters be maximized?

Operating life of the heaters can be extended through inspecting the heaters for damage, avoiding frequent on/off cycles to reduce thermal stress, using the appropriate watt density for the application and operate within the recommended temperature limits of the heater.

Can a cartridge and tubular heater be repaired?

Due to their sealed construction, it is difficult to execute repair activities on a heater. It’s generally more affordable to replace a broken heater with a new one.

Do not hesitate to contact us to brainstorm about your heating needs.