HD Double Spiral Silicon Carbide Spiral Heating Element SGR/SCR/SER Double Spiral SiC heaters, Please inquiry for the price with the form in the description before purchase, Thanks!
$368.00
Description
About Sic Heating Elements
The SiC electric heating element is mainly made of high quality green silicon carbide, it’s a kind of tubular and non-metallic high temperature Electric Heating Element produced by processing of making semi-finished product, high-temperature silicification, re-crystallization. Compared to metal electric heating elements, it has advantages of high working temperature, anti-oxidation, corrosion resistance, long service life, little deformation, easy installation and maintaining etc. So Sic electric heating element is widely used in high temperature furnaces and other electric heating equipment of magnetic materials, powder metallurgy, ceramics, glass, metallurgy,machinery and other industries.
Our Sic heating element adopt the most advanced production technology for the cold end , it has the advantages of quality of hot-cold end resistance ratio, energy saving, long service life, and avoiding the damage to the furnace body due to high temperature of cold end.
Oxidation of Resistance of Sic Heating Elements
SiC heating element begins to oxidize in the air when the temperature goes to 800 ℃, there will be a SiO2 protective film generated on the surface when it reaches to 100-1200 ℃, crystallizing cristobalite at 1200 ℃,the protection film reaches a certain thickness at 1400 ℃,and then the rate of oxidation element becomes extremely slow and steady. It will result in the damages to the protective film, increasing the rate of oxidation and premature failure of components if it continues to heat up to 1527 ℃ or above .
The Oxidation of Silicon Carbide Heating Elements is extremely slow during working , but it will still lead to increasing resistance for long time working, this is called aging of the element.
About HD Double Spiral (SER) SiC Heating Elements
Made of special high-density reaction-bonded silicon carbide, the HD Double Spiral SiC Heating Element is a tube with both electrical connections on one end. The hot zone is formed by cutting a double spiral slot which reduces the cross sectional area through which 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. HD Double Spiral Silicon Carbide Heating element is supplied with a ceramic collar cemented to the extremities of the cold end. The cold end of the HD Double Spiral Silicon Carbide Heater is flame sprayed with aluminum for a distance of about two inches. Flat braided-aluminum straps are held in compression with stainless steel clamps to this metallized area. The clamp is electrically insulated from the flat braid with high temperature insulation. The aluminum braid is about 10 inches (254 millimeters) long and holes are provided for easy connection to the power supply.
Inquiries are welcome with the following details:
Accesories Needed? (required)
YesNo, thanks!
This high-density double spiral element is cut so as to place both electrical terminations on the same side of the element. Equipped with an integral terminal assembly, Type SER reduces the cost of furnace construction, maintenance and wiring, especially where furnace design or dimensions preclude wiring from both ends. Ideal for blind holes.
Parameter Chart for Resistance of Double Spiral SiC Heating Elements:
Delivery Time of Double Spiral SiC Heating Elements:
Usually it takes about 5- 8 business days to finish the production if the quantity is less than 50 pcs after payment cleared, it will be a bit longer if the quantity of double spiral sic heaters wanted is larger than 100 pcs, please inquiry for the details.
Shipping Time of SER SiC Heaters:
It takes about 6-10 business days to be delivered in USA, Canada, UK, Australia, Japan, Korea, New Zealand, South Africa, Negeria, most of Asian countries, and European countries. it may take a bit longer in other countries, please message us for the details, thanks!
Other questions about SER Double Spiral SiC heaters , please inquiry with the following form:
Specifications — HD Double-Spiral SiC Heating Element (SGR / SCR / SER)
- Type: double-spiral (SGR / SCR / SER) silicon carbide heating element
- Design: spiral wound section distributes thermal stress for longer service life
- Rated surface temperature: up to ~1450°C
- Atmosphere: air / oxidizing (limited in N₂ / H₂)
- Supply: made to your drawing / dimensions
How SiC element pricing works
SiC elements are cut to order, so the unit price depends on four things: element type (ED straight, U-type, or double-spiral), diameter, heated length, and order quantity — larger batches lower the per-piece cost. The listed price is a reference for the stated size; send your drawing or dimensions and operating atmosphere and we will quote the exact configuration.
Need a different size or atmosphere? Browse the full SiC heating element range or read our SiC Heating Elements Complete Guide. For a custom quote, use the inquiry form on this page.
Frequently asked questions
What temperature can a SiC heating element reach?
Standard ED and U-type silicon carbide elements run with an element surface temperature up to about 1450°C (furnace chamber around 1400°C); recrystallized grades push a little higher. Above roughly 1500°C in clean air, MoSi2 elements are the better choice.
Can SiC heating elements be used in nitrogen or hydrogen atmospheres?
Yes, but stay within the grade’s limit — near the top of its temperature range SiC can nitride or react with hydrogen. For nitrogen- or hydrogen-rich furnaces, confirm the safe operating window before specifying.
How do I read an SiC element’s dimension code?
For straight elements the numbers are diameter / hot-zone length / cold-end length in mm (for example 14/130/105). U-type elements add the leg span and leg length. Match the cold-end length to your furnace wall thickness plus terminal hardware.
What furnace types use SiC heating elements?
They are common in tube furnaces, box and muffle furnaces, ceramic kilns, glass lehrs, and heat-treatment or sintering furnaces — anywhere a clean 1200–1400°C chamber is needed.
How is the price of a custom SiC element calculated?
Price depends on element type (ED straight, U-type, or double-spiral), diameter, heated length, and order quantity — larger batches lower the unit cost. Send your dimensions and atmosphere for a quote; we cut to spec.
Need a complete heating assembly? See our SiC heater guide for types, temperature limits and how to specify the right unit.
Need the matching sic heater element for your furnace? Our silicon carbide heating elements cover the same specification range.
More SiC Heating Elements
Related products
-
This product has multiple variants. The options may be chosen on the product pageEQ1850 Φ9/18 U Type Mosi2 Heating Elements by Same Technology with Kanthal
Price range: $334.92 through $950.56 -
This product has multiple variants. The options may be chosen on the product page
EQ1800 Φ12/24 U Type Mosi2 Heating Elements by Same Technology with Kanthal
Price range: $397.38 through $1,327.21 -
Sale
10 pcs of Φ6/12 280/220/30 U Type Mosi2 Heating Element
Original price was: $3,082.00.$1,860.00Current price is: $1,860.00.