SCR(SGR, SEU) type double-spiral silicon carbide heating elements are cut so as to place both electrical terminations on the same end of the element.They are supplied with the terminal assembly attached. SGR (SCR) type Torch Furnace silicon carbide design or dimensions preclude wiring from both sides of the furnace. This type is ideal for blind holes and the operating temperature can be up to 1500 deg C.

Made of special high-density reaction-bonded silicon carbide, the SGR (SCR) double-spiral silicon carbide element is a tube with both electrical connections on one end. The hot zone is formed by cutting a slot, which reduces the cross sectional area over which the current flows, resulting in higher resistance than the cold end. The cold end is formed by cutting two longitudinal slots along the length of the tube and is made of LRE (low end) material and in most cases is larger in diameter.

The SCR element is supplied with a ceramic collar cemented to the cold end. The cold end of the SCR (SGR) element is flame sprayed with aluminum for about two inches long. Flat, braided-aluminum straps are held in compression with a stainless steel clamp to this metalized area. The clamp is electrically insulated from the flat braid with high temperature insulation. The aluminum braid is ten inches long and holes are provided for easy connection to the power supply.

The electrical resistance of the SCR (SGR) can be customized by varying the spiral width. SCR (SGR) double-spiral silicon carbide heating element can range from high resistance to low resistance. The electrical resistance can be as high as the SER (spiral element with return) and as low as the RR (rammed type) non-spiral double-spiral silicon carbide heating element. There are further limits based on the size of the SCR (SGR).

it is also widely used in various high temperature electric furnaces and other electric heating debices, such as in the industrial of magnet, ceramics, powder metallurgy, glass, metallurgy and michinery etc.

Features:

1, High temperature resistance, resistance to oxidation and corrosion

2, Fast heating, long life, small deformation at high temperature, easy to install and maintain

3, With automatic electronic control systems, precision constant temperature can be obtained, curve temperature control can be obtained too according to the needs of production

To Order SCR (SGR, SEU) Type Silicon Carbide Heating Rod, please provide the following information:

Type: SCR

Outer diameter (OD): mm
Hot zone length (HZ): mm
Cold end length (CZ): mm
Overall length (OL): mm
Example:
SCR,OD=31.7mm,HZ=305mm,CZ=241mm,OL=546mm,Resistance 4.46 ohms
Specify as: SCR,31.7/305/546/4.46 ohms