Tubular Heaters
Tubular Heaters & Finned Tubular Heaters are 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 - E177353
Applications
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 |
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.
