Dumbell Shaped Silicon Carbide Heating Elements
One of the earliest Heating Element designs, the enlarged cold ends of the Dumbbell style element were originally made with oversized cold ends to increase cold end cross-section, lowering electrical resistance, thereby lowering cold end operating temperatures.
Modern Dumbbell Alpha Rod, by contrast, employs an advanced technology to keep the terminal ends cool by virtue of the decreased resistivity of the lower resistance cold end material used in the manufacturing process.
Oversize, cold ends are therefore no longer necessary, the old-style resistance ratio was 1:3, whereas the new DB resistance ratio is 1:40. The maximum temperature is 1550o C. (For Dimensions, Resistance, etc. kindly contact us):
For further information on silicon carbide heating elements…