Analysis of the difference between single-head heating tube and double-head heating tube

1. Different Structures

Single-ended heating elements are electric heating elements with wires exiting from one end. They offer excellent insulation properties and are filled with high-purity magnesium oxide powder with a high thermal conductivity. They are compact, powerful, heat-dissipating, and highly efficient.

Double-ended heating elements are electric heating elements with wires exiting from both ends. They are protected by a metal tube (including stainless steel, copper, or various imported steel materials). High-quality electric heating alloy wire (iron-chromium-aluminum alloy, nickel-chromium alloy) is evenly spiraled along the central axis of the tube. The interstices are densely filled with crystalline magnesium oxide powder, which has excellent heat resistance, high thermal conductivity, and insulation properties. Both ends of the tube are sealed with silicone, and then processed through other processes.

2. Power Design

Single-ended heating elements have higher power than double-ended elements of the same length and diameter. However, in terms of service life, under the same operating environment and specifications, single-ended heating elements have a longer service life.

For example, in dry air heating, a single-ended heating element with a diameter of 16mm and a length of 300mm can produce 550W of power, while a double-ended heating element with the same diameter and length can only produce 300W. Therefore, the surface load of a single-ended heating element is higher than that of a double-ended heating element.

This is the difference between single-ended and double-ended heating elements.