The TSK High-Efficiency Honeycomb Block Heater integrates heating wires into a low-pressure-loss honeycomb ceramic structure. This design allows air to pass evenly through both the inside and outside of the coiled heating wire, ensuring uniform and highly efficient heating.
In contrast, a Sheathed Heater consists of a heating wire (heating element) encased in a metal sheath tube filled with an insulating material, typically magnesium oxide (magnesia).
TSK高効率ハニカムブロックヒータは圧力損失の非常に少ないハニカムセラミックに電熱線を組み込み、電熱線の内側、及び外側を均一に気体が通過する構造となっています。
これに対してシーズヒータは電熱線(発熱体)を金属シースパイプに投入し、絶縁物(マグネシア)を充填したものです。
High-Efficiency Honeycomb Block Heater |
Sheathed Heater |
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Thermal Efficiency |
The heated air flows uniformly through both the inside and outside of the coiled heating wire, allowing nearly 100% of the heat to be converted into hot air. (P.A.T.) |
Uses secondary heating, resulting in lower thermal efficiency and slower temperature rise. At high temperatures, the sheath pipe may deform, causing uneven heater spacing and reduced heat exchange performance. |
Service Life |
The watt density can be set low, which minimizes stress on the heating element and allows for semi-permanent operation without breakage, regardless of temperature. |
High watt density increases the risk of wire breakage. Not suitable for high-temperature applications. Elevated internal temperatures shorten the heater’s lifespan. |
Safety |
Offers long-term safety due to sufficient insulation and spacing distances. |
Insulation quality of the magnesia may degrade over time, leading to short circuits between the heating wire and the metal sheath. Corona or arc discharges may occur inside the insulating powder. Insulation performance decreases as the product ages. |
Ease of Operation |
No cooling operation is required. Temperature control is simple and allows for high-precision regulation. |
Requires post-operation cooling. Skipping this step can cause failures such as wire breakage. |