Double spiral type sic heating elements - Double spiral type

Double Spiral Silicon Carbide Heating Elements are made from very dense silicon carbide, featuring a return spiral groove allowing connection at one end. The resistance and allowable surface loadings of the Double Spiral Shape Type are substantially higher than other silicon carbide elements, consequently operating voltages are higher and current draw lower. This feature can lead to significant savings in both control equipment and wiring. Double Spiral Shape elements are energy conserving, convenient and easy to install due to the same-end terminal structure.

When you place an order of the Double Spiral SiC Heating Element, please give following information:
OD(mm): Outer DiameterHZ(mm): Hot Zone length
CZ(mm): Cold Zone lengthOL(mm): Overall Length
If you have the special requirement for the resistance, please tell us!

Order Sample of the Double Spiral SiC Heating Element
SD Shape: OD=31.7mm, HZ=305mm, CZ=241mm, OL=546mm, Resistance 4.46Ω
Specify as: 31.7/305/546/4.46Ω

Notes for using and installing the heater:
1. Heater should be protected against damp during storing or installing to ensure the performance of the heater.
2. In order to be sure of well-distributed lod of each and groups, heater should be divided before assembling. The tolerance of the resistance of each one cannot exceed by 10% each other.
3. Heater is hard and brittle, please be careful when assem bling and maintaining so as to avoid damage.
4. When operating the electric furnace at the beginning, the voltage should be increased slowly and cannot be fully loaded at once. Otherwise the larger current will be resulted in the damage of heater.
5. When heater is damaged and need to be changed, the resistance of new ne should follow the increasing resistance. If many are damaged or resistance increased too much, heater should be changed.
6. Silicon Carbide (SIC) heating elements is a non-metal electric heating element made from SiC as its main raw materials. It has some specific properties, such as low expansion coefficient, little deformation, stable chemical property, long service life, easy installation and maintenance, etc.7. Usage: Silicon Carbide (SIC) heating elements can usually make use for furnace which temperature from 600-1600. It can be directly used in an air atmosphere, without any protection atmosphere. It is extensively used in the fields of metallurgy, ceramics, glass, machinery, analysis test, semiconductor, science & research and so on.