Rod Heaters
Standard (Low-Density) Rod Heaters - Basic design, lower watt density
- Longer life if you don’t push them too hard
High-Density Cartridge Heaters - Compact, high watt output
- Faster heating, higher temperatures
Swaged Cartridge Heaters - Mechanically compressed (swaged)
- Better heat transfer
- More durable
- Industry standard for serious applications
Cartridge Heaters with Thermocouple - Built-in temperature sensor
- Precise control
- Saves you from guessing and overheating
Flanged Cartridge Heaters - Comes with mounting flange
- Prevents movement or slipping
- Used where stability matters
Split Sheath Cartridge Heaters - Slightly expandable design
- Ensures tight fit inside holes
- Better heat transfer
- Useful when machining tolerances aren’t perfect (which is often)
Common Materials (Because heat destroys weak choices)
- Stainless Steel → standard use
- Incoloy → high temp, oxidation resistance
- Brass → lower temp, better conductivity
- Tight fit hole → High-density + swaged
- Precision control → With thermocouple
- Loose tolerance → Split sheath
- Simple application → Low-density
- Vibration / movement → Flanged type
