SGR type SiC heating elements

This high-density SGR double-spiral silicon carbide heating element is cut so as to place both electrical terminations on the same end of the element. They are supplied with the terminal assembly attached. SGR type silicon carbide heater is used where furnace design or dimensions preclude wiring from both sides of the furnace. This type is ideal for blind holes and insertion in tubes. For maximum performance can up to 1650 deg C

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Why Specify Silicon Carbide (SiC) heating elements with HeatingDriver

HeatingDriver is a manufacturer and exporter of Silicon Carbide (SiC) heating elements with nearly 20 years of experience supplying furnace builders, labs, and integrators worldwide. We stock standard grades and build custom sizes from your drawings, and we review your element drawings free of charge before production. Browse our Silicon Carbide (SiC) heating elements catalog or contact our engineers for a quote.

Frequently Asked Questions

Q: What is the SGR type used for?

The SGR is a high density double spiral element cut so that both electrical terminations sit on the same end. It is used where the furnace design or its dimensions prevent wiring from both sides, and it suits blind holes and insertion into tubes.

Q: Does the SGR come with terminals fitted?

Yes. SGR elements are supplied with the terminal assembly already attached, which shortens installation time and keeps the connection geometry consistent between replacements.

Q: Can an SGR replace a two ended spiral element?

Only if the furnace can accept a single ended connection. Check the hole depth, the tube bore and the terminal clearance first, then match the hot zone length, the diameter and the resistance.

Q: What temperature and surface load should I plan for?

Plan on furnace temperatures up to about 1450°C for standard grades, with a starting surface load of 5 to 15 W/cm2 on the hot zone, derated for higher temperature and for poor ventilation.