Vacuum Feedthroughs, Heating Elements, and Custom Thermal Systems for
Aerospace, University Research, Semiconductor, Medical and OEM Applications

Band Heaters

Band Heaters

The time proven standard for electrically heating barrels and cylinders.

Mica, ceramic, and aluminum band heaters available in all standard sizes and termination styles. Configurations for all plastics industry equipment including injection molding, blow molding, and extrusion.

Description

U.L. Recognized - E56973
C.S.A. Certified - 016386-0-000

Applications

Cylinders, Dies, Drums, Holding Tanks, Injections and Blow Molding Machines, and Plastic Extruders.

Features

  • The Backer Hotwatt Standard Band Heaters are manufactured in one or two piece constructions with maximum inside diameters of 11 1/2" and 22 1/2" respectively. Three or more sections are employed when heaters of larger diameters are needed (as for blown film extrusion dies).
  • Holes and cutouts are available. Maximum wattage may be reduced with the addition of holes and cutouts. Drawing required for specific location.
  • Made in U.S.A

Construction

Hotwatt Band Heater Construction

  1. Mica insulation.
  2. Element ribbon.
  3. Rust resistant steel sheath.
  4. Radial lock-up tabs.
  5. Post terminals.

Standard Band Heater

Inside
Diameter
1" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 4 1/2" 5" 5 1/2" 6"
1" 83 130 185 235              
1 1/2" 140 210 280 350 420 490 560        
2" 175 235 350 470 565 675 765 865 950    
2 1/2" 235 350 470 590 700 825 940 1050 1175 1300 1400
3" 275 405 550 675 800 935 1075 1270 1410 1550 1690
3 1/2" 330 475 660 825 990 1150 1320 1485 1650 1800 1980
4" 375 545 725 910 1100 1275 1450 1640 1825 2010 2200
4 1/2" 420 635 845 1060 1270 1485 1695 1900 2120 2330 2545
5" 450 685 925 1150 1375 1610 1850 2075 2300 2525 2750
5 1/2" 520 775 1035 1295 1555 1815 2070 2330 2590 2850 3100
6" 550 820 1100 1325 1650 1935 2225 2495 2770 3050 3325
6 1/2" 610 920 1225 1530 1835 2140 2450 2755 3060 3365 3675
7" 650 975 1300 1625 1950 2275 2600 2875 3250 3575 3900
7 1/2" 705 1060 1415 1765 2120 2470 2825 3180 3530 3885 4240
8" 750 1125 1500 1860 2225 2585 2950 3325 3700 4075 4450
8 1/2" 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800
9" 850 1275 1675 2050 2525 2935 3350 3825 4200 4600 5000
9 1/2" 895 1340 1790 2235 2685 3130 3580 4025 4475 4920 5370
10" 925 1385 1850 2325 2800 3260 3725 4185 4650 5110 5575
10 1/2" 990 1485 1980 2475 2970 3465 3960 4455 4950 5445 5940
11" 1000 1500 2030 2535 3040 3480 3915 4430 4940 5425 5910
11 1/2" 1060 1590 2130 2660 3200 3750 4300 4850 5400 6030 6560

Red catalog number denotes stock item. See stock section for specific ratings.

Sizes

The chart represents typical sizes available. Other inside diameters and widths, both between those and larger than those listed are available. Metric sizes are also available. Construction of units with inside diameters over 11 1/2" must be manufactured in accordance with the following table.

Construction Inside Diameter Range
Two Piece Over 11 1/2" to 22 1/2"
Three Piece Over 22 1/2" to 36"
Four Piece Over 36" to 48"

Wattage

The chart is based on a watt density of 30 watts per square inch of surface. The watt density may be varied, depending on operating temperature in accordance with the following table.

To compute wattage: multiply inside diameter X pi X width X watts per square inch (based on the table below).

Operating Temperature Watts Per Square Inch
300°F 40
400°F 30
500°F 21
600°F 12
700°F to 900°F Max. 10

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.
ISO 9001

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