Ceramic Band Heaters

Typical applications are plastic molding, extrusion, and molding presses. Ceramic band heaters are also used for pipe heating, heat treating, autoclaves, or any application where there is a need to apply heat to a cylindrical surface.

Design Features

Energy efficient, less power consumption
High sheath temperature capability up to 1600°F
Thermally insulated
Uniform temperature
Flexible, easy to install and remove

Ceramic Fiber Insulation: The standard insulation is 1/4″ thick to improve energy conservation 25% and more over non-insulated bands. 1/2″ thick insulation optional. In the Maxi-Miser design, an additional 1/2″ non-compressed layer of insulation is contained in a separate, flexible chamber for even greater energy savings.
band heaters

Maxi-Miser Insulation Chamber

Serrated Sheath: Sheath material is resistant to heat and corrosion. Unique Serrations maximize flexibility, increase surface contact and provide easy opening and installation of the heater, eliminating the necessity for two-piece band heaters up to 18″ in diameter.

Simplified Installation, Additional Energy Conservation: Ceramic Band Heaters can be manufactured in widths much greater than what is practical in Mica Band Heaters, eliminating heat losses between gaps in narrow band heaters and simplifying installation.

Style I

Post Terminals

Style F

Leads in armor cable exit through outside surface

Style I w/ T-Box

Post Terminals in terminal box

Style B

Fiberglass Leads exit through outside surface

Thickness w/ 1/4″ Insulation: 5/8″
Thickness w/ 1/2″ Insulation: 3/4″
Thickness of Maxi-Miser: 1″

Ceramic heaters can be manufactured in flat design for use as a strip heater, radiant heater, or without shroud for use as a furnace element.

Ceramic Band Heaters with Blower

A perforated rather than insulated shroud with a cowl, plenum, and blower is designed for use on plastic extrusion equipment where some processes generate excessive heat from pressure. When a predetermined temperature is exceeded, the blower will engage, cooling the process. Consult Ogden with application requirements.

Mighty Miser Ceramic Band Heater

Specifications:
Resistance Tolerance: + 10%, – 5%
Wattage Tolerance: + 5%, – 10%
Cold Resistance: 12% lower than hot resistance
Maximum Volts: 600
Maximum Amperage: 25
Maximum Watt Density: Varies depending upon application considerations
Minimum Width: 1″
Minimum Width on Maxi-Miser: 3″
Width Tolerance: 1/8″
Minimum I.D.: 2″
Minimum I.D.: Double Insulated: 4″; Maxi-Insulated 6″
Maximum I.D.: 18″ full band; 36″ half band
Maximum Width: 3 – 4 x I.D. depending upon type and size
Standard Width Increments: 1/2″
Standard Gap when Tightened: 1/2″ depending upon I.D.
Thickness w/1/4″ Insulation: 5/8″
Thickness w/1/2″ Insulation: 3/4″
Thickness of Maxi-Miser: 1″
Ceramic heaters can be manufactured in flat design for use as a strip heater, radiant heater, or without shroud for use as a furnace element.

Maintenance and Trouble Shooting for Prolonged Heater Life:
1. Regulate Voltage. A 10% variation in voltage results in a 20% variation in power.
2. The cylinder must be clean and smooth for efficient heat transfer.
3. When attaching the lead wires to the terminals, excessive turning pressure can cause breakage of the terminal resistance wire.
4. A 1/2″ gap should be maintained at the opening when operating. Retightening is not normally required, however, if the operating temperature is changed, the flange bolt should be checked.
5. Oil, plastic, dirt, etc., should not be allowed to accumulate on the heaters.
6. Select a heater to match the diameter of the cylinder.
7. Match the heaters as closely as possible to the actual load requirement.