Standard Ceramic Band Heater Insulators

High quality ceramic band heater insulators or ceramic knuckles are encapsulated in a steel shroud. High temperature, coiled element wires run through the ceramic insulators. The band heater ceramics or knuckle ceramics located inside the heater are primarily used in plastic extrusion and injection molding applications.

Ceramic Band Heater Insulators

Ceramic Band Heater Insulators

standard band heaters insulators

Click on dimension header to list by size
Part No. Material No. of Holes Hole Diameter OD Length OD Width Thickness Grooved No Groove
A-2845 L-3 Steatite 8 0.250 3.375 0.625 0.468 X
A-2929 L-3 Steatite 6 0.250 2.375 0.625 0.468 X
A-2930 L-3 Steatite 4 0.250 1.875 0.469 0.625 X
A-2931 L-3 Steatite 6 0.250 2.875 0.469 0.625 X
A-2932 L-3 Steatite 4 0.203 1.375 0.469 0.625 X
A-2961 Cordierite 4 0.220 1.875 0.453 0.625 X
A-2962 Cordierite 6 0.220 2.375 0.453 0.625 X
A-2963 Cordierite 6 0.220 2.875 0.543 0.625 X
A-2964 Cordierite 8 80.242 3.375 0.453 0.625 X
A-3455 L-3 Steatite 2 0.250 0.875 0.469 0.625 X
A-3474 Cordierite 3 0.185 0.875 0.375 0.625 X
A-3517 L-3 Steatite 4 0.250 1.875 0.469 0.406 X
A-3518 L3-Steatite 6 0.240 2.875 0.469 0.625 X
A-3519 L3-Steatite 6 0.250 2.375 0.469 0.406 X
A-3520 L3-Steatite 8 0.250 3.375 0.469 0.406 X
A-3521 L3-Steatite 2 0.250 0.875 0.469 0.406 X
A-3522 L3-Steatite 4 0.203 1.375 0.469 0.406 X
A-3684 L-3 Steatite 9 0.250 3.875 0.468 0.625 X
A-3685 L-3 Steatite 6 0.140 1.360 0.312 0.305 X
Part No. Material No. of Holes Hole Diameter OD Length OD Width Thickness Grooved No Groove
A-3685-1 L-3 Steatite 6 0.140 1.360 0.312 0.400 X
A-3686 L-3 Steatite 4 0.140 0.937 0.312 0.312 X
A-3686-1 L-3 Steatite 4 0.140 0.937 0.312 0.400 X
A-3787 L-3 Steatite 4 0.242 1.875 0.453 0.625 X
A-3788 L-3 Steatite 4 0.242 1.875 0.453 0.625 X
A-3790 L-3 Steatite 8 0.242 3.375 0.453 0.625 X
A-3791 L-3 Steatite 8 0.242 3.375 0.453 0.625 X
A-3793 L-3 Steatite 6 0.242 2.875 0.453 0.625 X
A-3794 L-3 Steatite 6 0.242 2.875 0.453 0.625 X
A-3796 L-3 Steatite 6 0.242 2.375 0.453 0.625 X
A-3797 L-3 Steatite 6 0.242 2.375 0.453 0.625 X
A-3801 L-3 Steatite 4 0.205 1.375 0.375 0.625 X
A-3802 Cordierite 3 0.205 0.875 0.375 0.625 X
A-3957 L-3 Steatite 4 0.205 1.375 0.375 0.625 X
A-4073 Cordierite 4 -.242 1.875 0.453 0.625 X
A-4074 Cordierite 6 0.242 2.375 0.453 0.625 X
A-4075 Cordierite 6 0.242 2.875 0.453 ).625 X
A-4076 Cordierite 4 0.205 1.375 0.375 0.675 X
A-4202 L-3 Steatite 4 0.210 1.365 0.453 0.675 X
Part No. Material No. of Holes Hole Diameter OD Length OD Width Thickness Grooved No Groove
A-4203 L-3 Steatire 4 0.210 1.375 0.453 0.625 X
A-4301 L-3 Steatite 6 0.250 2.375 0.469 0.625 X
A-4400 L-3 Steatite 4 0.250 1.875 0.469 0.625 X
A-4401 L-3 Steatite 6 0.250 2.375 0.469 0.625 X
A-4402 L-3 Steatite 6 0.350 2.875 0.469 0.625 X
A-4403 L-3 Steatite 8 0.250 3.375 0.469 0.625 X
A-4437 L-3 Steatite 4 0.203 1.330 0.469 0.625 X
A-4463 L-3 Steatite 3 0.250 0.875 0.469 0.625 X
A-4652 L-3 Steatite 2 0.266 0.940 0.453 0.625 X
A-4653 L-3 Steatite 3 0.266 1.420 0.453 0.625 X
A-4654 L-3 Steatite 4 0.266 1.900 0.453 0.625 X
A-4655 Cordierite 6 0.242 2.875 0.453 0.625 X
A-4656 Cordierite 6 0.242 2.375 0.453 0.625 X
A-4657 Cordierite 8 0.242 3.375 0.453 0.625 X
A-4658 Cordierite 4 0.242 1.875 0.453 0.625 X
A-4685 Corierite 4 0.205 1.375 0.375 0.625 X
A-4728 L-3 Steatite 8 0.140 1.861 0.312 0.400 X
A-4816 L-3 Steatite 6 0.242 2.375 0.453 0.406 X
A-4817 L-3 Steatite 8 0.242 3.375 0.453 0.406 X
A-4846 L-3 Steatite 6 0.232 1.882 0.400 0.500 X
Part No. Material No. of Holes Hole Diameter OD Length OD Width Thickness Grooved No Groove
A-5010 L-3 Steatite 1 0.266 0.460 0.450 0.625 X
A-5231 96% MgO 6 0.250 2.580 0.453 0.625 X
A-5337 L-5 Steatite 6 0.242 2.375 0.455 0.625 X
A-5600 L-5 Steatite 6 0.242 2.375 0.45 0.625 X
A-5609 L-5 Steatite 4 0.242 1.583 0.45 0.625 X
A-5650 L-5 Steatite 2 0.242 0.792 0.45 0.625 X
A-5806 L-5 Steatite 3 0.242 1.188 0.45 0.625 X
A-6062 L-5 Steatite 1 0.242 0.396 0.45 0.625 X
A-6063 L-5 Steatite 8 0.242 3.170 0.45 0.625 X
This information is for design guidance only. Du-Co Ceramics Company will not guarantee this information as absolute values. Various geometries can affect properties.
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