Tubular Heaters & Finned Tubular Heaters
Used mainly in custom heating applications such as dies, drums, cylinders, holding tanks, injection/blow molding machines. They can be formed into almost any shape, welded (or brazed) to any metal surface, and cast.
Description
U.L. and C-UL Recognized - E177353Applications
Cylinders, Dies, Drums, Holding Tanks, Injections and Blow Molding Machines, and Plastic Extruders.Features
- The Hotwatt Tubular Heater has built-in resistance to shock, vibration, corrosion, and temperature extremes.
- The heater is swaged, reducing the diameter of the metal sheath and compacting the insulation. This insures rapid heat transfer and holds the coil in position for forming.
- Many formations are available.
- Long, trouble free service.
- Made in U.S.A
Construction
- Steel, stainless steel, copper, or Incoloy sheathed elements.
- Element wire situated in proximity to outside surface for maximum heat transfer and minimum internal temperature while preserving good dielectric qualities.
- Pure magnesium oxide compressed to an optimum density for best heat transfer and electrical insulation at elevated temperatures.
- Weld connection.
- Cold pin.
- Insulator.
- Standard post terminal.
Standard Sizes and Materials
The sheath materials available are stainless steel, steel, copper, and incoloy. Standard diameters are: .260", .315", .375", .440" and .475". Diameter tolerance is ±.010"
| Sheath Material | Max Temp. Allowed on Sheath | Max Length of Sheath | Max Cold Lengths |
| Steel | 750°F | 252" | 96" |
| Copper | 350°F | 252" | 96" |
| St. Steel | 1200°F | 324" | 96" |
| Incoloy | 1600°F | 324" | 96" |
Sheath Materials and Watt Densities
To compute wattage: multiply inside diameter X pi X heated length X allowable watts per sq. inch (based on the table below).
| Application | Operating Temperature | Recommended Sheath Material | Watts Per Square Inch |
| Clamped to Surfaces | up to 300°F | Steel | 30 |
| Clamped to Surfaces | 500°F | Steel | 20 |
| Clamped to Surfaces | 800°F | Incoloy | 15 |
| Clamped to Surfaces | 1000°F | Incoloy | 10 |
| Clamped to Surfaces | 1200°F | Incoloy | 7 |
| Clamped to Surfaces | 1400°F | Incoloy | 2.5 |
| Still Air | 800°F | Incoloy | 7 |
| Still Air | 1000°F | Incoloy | 11 |
| Still Air | 1200°F | Incoloy | 14 |
| Still Air | 1400°F | Incoloy | 30 |
| Clamped into Machined Grooves | 500°F | Steel | 25 |
| Clamped into Machined Grooves | 800°F | St. Steel | 15 |
| Clamped into Machined Grooves | 900°F | Incoloy | 15 |
Quality
BCE Engineering & Quality Assurance
BCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015.
