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Ceramic Insulated Band Heaters- Redband äINTRODUCTION  AKINSUN ceramic Redband ä heaters, used for industrial processing, have one primary purpose, to heat machinery parts or materials quickly, efficiently and contribute to productivity. These ceramic band heaters are capable of generating higher temperatures essential to process today�s high temperature resins. Because of the low thermal conductivity of the ceramic fiber insulation, the external surface temperature of the ceramic band heater is approximately 400�F while running the inside surface temperature up to 1200�F. Ceramic band heaters are manufactured in full range of standard construction variation, physical dimensions, electrical ratings and complete arrangement of screw terminals and lead terminations. These heaters are flexible and easy to install. Interconnecting ceramic bodies allow heaters to be easily opened and wrapped around the cylinder. AKINSUN heaters are designed and manufactured with materials to assure long life. Ceramic band heaters can be custom manufactured to the size and diameter you need with all the necessary variations. FEATURES - TERMINAL BOX:
A steel terminal box offers excellent protection to exposed terminals. The box has a 5/8" knock-out that will accept standard conduit or flexible armor cable connectors. - SCREW TERMINALS:
Screw terminals are standard on most ceramic insulated heater bands. Stainless steel screw terminals connected to solid nickel pins are designed to provide maximum amperage carrying capacity. Brackets are located 180� from the screw terminals. - STAINLESS STEEL SHEATH:
Stainless steel housing with serrated edges provides maximum flexibility for ease of installation. Wall thickness of the sheath is chosen to provide mechanical strength, and thermal-conductivity. Sheath material will not become brittle when subject to high heat environment. - CERAMIC FIBER INSULATION:
A 1/4" thick ceramic fiber insulation material is chosen for its dielectric and thermo-conducitivity characteristics. This keeps the heat on the cylinder and is not lost to the atmosphere. Specially designed mounting brackets with 1/4"-20 socket cap screws are used to securely draw the heating element assembly against the cylinder evenly and tightly across its entire width. - NICKEL CHROME RESISTANCE WIRE:
Wire is selected from different sizes and resistance then precision wound on machines, allowing to include the maximum amount of wire possible in each heater. This allows heater to remain cool while providing maximum heat. - RADIAL LOCKUP FLANGE:
Heavy-duty stainless steel flange is spot welded to outer sheath. A firm pressure extends over the width of the band to assure good lockup.
Ceramic Insulated Band HeatersPlastics processing require high operating temperatures and fast production rates. Our ceramic band heaters are designed to meet these demands. These heaters are, in effect, high temperature electric furnaces capable of very efficient heat transfer by conduction, convection and radiation. Built in insulation minimizes unwanted temperature changes along the barrel. Other types of band heaters are primarily conductive, requiring an intimate fit with components being heated. Grooves or other surface irregularities form voids under the bands, resulting in hot spots and pre mature heater failure. Ceramic bands are recommended here, because efficient heat transfer is not affected by irregular surfaces or loose fit. At higher watt densities they can be used in wider increments then other heaters. This means you can reduce the number of bands used and simplify wiring. SPECIFICATIONS MAXIMUM TEMPERATURE | 1400�F | NOMINAL WATT DENSITY | 20-45 W/IN� | MAXIMUM WATT DENSITY | 45 W/IN�, AIR COOLED 50 W/IN� | MAXIMUM VOLTAGE. | 480V (SINGLE OR TREE PHASE) ON SCREW TERMINALS | MAXIMUM VOLTAGE W/LEADS. | 240 VAC | MAXIMUM AMPERAGE | LEAD WIRE TERMINATION 10 AMP (PER CIRCUIT) | MAXIMUM AMPERAGE SCREW TERMINATION | 25 AMP | RESISTANCE TOLERANCE | +10%,-5% | WATTAGE TOLERANCE | +5%,-10% | INSULATION (CERAMIC FIBER BLANKET) | STANDARD THICKNESS �" DOUBLE THICKNESS �" | TERMINALS | 1/4-20 POST TERMINALS STANDARD | SHEATH MATERIAL | STAINLESS STEEL | LOCKUP | FLANGE TYPE STANDARD | MINIMUM ID: ONE PIECE | 2" | MINIMUM ID: TWO PIECE | 4" | MAXIMUM ID. | 25 �" FOR 2 PIECE CONSTRUCTION 15" FOR 1 PIECE CONSTRUCTION | STANDARD WIDTH INCREMENT | 1/2" | STANDARD GAP WHEN TIGHTENED | 1/4" | THICKNESS W/�" INSULATION. | 5/8" | THICKNESS W/�" INSULATION. | 7/8" |
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