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This occurs during prolonged operation at low temperatures between 400°C and 700°C due to intensified oxidation.

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U-shaped MoSi₂ heating elements are high-temperature heating components named after their U shape. They are usually installed vertically with the U‑bend downward, consisting of two cold ends (twice the of the hot section) and a welded U‑shaped hot zone. The cold ends are aluminum‑metallized for low‑resistance electrical connection.

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In an oxidizing atmosphere, our standard models reach 1700°C, while our ultra-high temperature models can operate at up to 1800°C.

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They are ideal for electronic ceramics, glass manufacturing, metallurgy, and semiconductor processing.

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They should be hung vertically from the furnace top using specialized holders to avoid mechanical stress.

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Yes. Unlike SiC, the resistance of a MoSi2 heating element does not change significantly with application time, allowing for the mixing of old and new elements.

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These elements are brittle at room temperature. Breakage is usually caused by mechanical impact or rigid clamps that prevent thermal expansion.

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We provide a wide range of shapes, including U-shape, W-shape, straight, L-shape, round, and spiral configurations, all customizable to your dimensions.

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Yes, because the electrical resistance of MoSi2 heating elements does not change over time, new and old elements can be used together.

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These elements are brittle at room temperature. Breakage is usually caused by mechanical impact or rigid clamps that prevent thermal expansion.

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Yes. Unlike SiC, the resistance of a MoSi2 heating element does not change significantly with application time, allowing for the mixing of old and new elements.

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Surface load changes with furnace temperature. At 1400 °C, the hot zone should stay at or below 5 W/cm².

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We use high-purity materials and advanced sintering processes to ensure a dense microstructure, and we recommend quickly passing through the 400-700°C range during heating.

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Absolutely, we offers full technical support, including surface load calculations and assistance with selecting the optimal element dimensions for your furnace.

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An element is generally considered to have reached the end of its service life when its electrical resistance increases to four times its initial value.

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Matching resistance within a ±5% deviation ensures uniform heating and prevents individual elements from overloading, which extends the overall lifespan of the set.

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Yes, they can be used in vacuum environments, though the maximum operating temperature may differ from those used in air or inert atmospheres.

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Aging is caused by the gradual oxidation of SiC into SiO₂, which increases the electrical resistance of the element over time.

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SiC upholds its mechanical firmness and avoids drooping or twisting at elevated temperatures, while metal alloys yield and oxidize swiftly.

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It guarantees reduced resistance at the terminals, channeling warmth into the furnace area to conserve power and guard the furnace framework against overheating.

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The end of service life arrives when the electrical resistance climbs to four times its original amount owing to the "aging" procedure.

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Yes, yet with care. Hydrogen may weaken the shielding SiO₂ layer; thus, the working temperature requires precise oversight to halt quicker aging.

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Yes, our technical team aids in figuring out overall power demands, choosing surface loads, and outlining series-parallel wiring sketches for peak efficiency.

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As SiC elements age and their resistance increases, a transformer is needed to boost the voltage to maintain constant heating power.

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It is generally considered at the end of its life when its electrical resistance has increased to four times its initial value.

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Standard models operate at 1400°C, while specialized high-density models can reach up to 1600°C in an oxidizing atmosphere.

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Our unique "cold end" production process ensures a superior resistance ratio between the hot and cold zones, preventing heat loss and protecting the furnace body.

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Jia xin controls the cold-end manufacturing process, maintains a stable recrystallization process, and inspects each batch in accordance with ISO 9001 standards. These steps give steady quality and longer life in use.

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It is generally considered at the end of its life when its electrical resistance has increased to four times its initial value.

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Standard models operate at 1400°C, while specialized high-density models can reach up to 1600°C in an oxidizing atmosphere.

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Our unique "cold end" production process ensures a superior resistance ratio between the hot and cold zones, preventing heat loss and protecting the furnace body.

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This is "aging," caused by oxygen reacting with SiC grains to form a SiO2 film, which impedes current flow.

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It is best to replace it with a rod of similar resistance. If the set is old, replacing the entire group is recommended to maintain temperature uniformity.

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They should be kept in a dry, moisture-proof environment to prevent damage from humidity and avoid contact with acids or alkalis

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Parallel connection is generally superior to series. A common optimal setup is connecting two rods in series as a group, then connecting multiple groups in parallel.

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An element reaches the end of its life when its resistance climbs to four times its first value.

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Matching resistance under a ±5% range ensures each element draws power evenly. This prevents local overheating and delivers uniform temperatures.

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The company offers ED straight rods, U-type rods, W-type rods, and both single and double spiral types.

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They are best for oxidizing atmospheres. They can also be used in other settings; however, the maximum temperature and surface load may need to be changed.

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Slow oxidation at high temperature makes resistance rise bit by bit. Watching the resistance rise helps users plan a replacement before failure.

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Cool the furnace, take out the broken part without touching the rest, and fit a new Jiaxin silicon carbide heating element that matches the old size and resistance.

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Jia xin silicon carbide heating elements go through a high-temperature crystal step. A thin protective film forms on the hot zone and slows oxidation, so the part lasts longer.

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Yes. We provide full customization services, including:
Custom size, power, and temperature range
Furnace structure, control system, and atmosphere interface customization
Private labeling (OEM / ODM) and packaging design support

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All products go through strict raw material inspection, sintering control, electrical testing, and final quality inspection.
Each product has its own test record and tracking number to guarantee stability and reliability.

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Yes, most standard models have no MOQ (MOQ = 10 unit).
We welcome trial orders and small-quantity tests before bulk purchases.

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Standard products: 7–10 days
Customized products: 15–30 days
We also support urgent production and global air or sea shipping.

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We provide flexible international shipping options based on order size and customer preference:
Small-quantity heating elements are usually shipped by air express (DHL, FedEx, UPS, etc.) for fast and reliable delivery.
Large orders or complete furnaces are arranged by sea or air freight, depending on the customer’s location, delivery time, and budget.
We always discuss and confirm the best shipping method with each client before shipment to ensure cost efficiency and timely delivery.

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Our products are exported to over 50 countries worldwide, including Europe, America, Asia, the Middle East, and Africa.
We support EXW, FOB, CIF, and DDP trade terms according to customer requirements.

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Furnace products come with a one-year warranty by default and offer long-term parts support.
We also provide lifetime technical support and fast spare parts supply.
As heating elements are consumable items, the warranty policy is as follows:
Replacement may be requested within 30 days of receipt for manufacturing defects (e.g., internal fractures, dimensional deviations, abnormal resistance).
Normal wear and tear during regular use is not covered under warranty.
We will determine whether the issue stems from production based on actual inspection reports.

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Yes. Our experienced engineers offer:
Furnace design consultation and heating solution matching
Installation guidance and maintenance advice
Failure analysis and long-term technical support
For OEM clients, we can provide full technical documentation and operation manuals.

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Yes. We provide free samples for certain models, and customers only need to cover the shipping cost.
It’s the best way to test performance and compatibility before mass purchasing.

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Email: info@jiaxin-carbide.com
Website: https://jiaxin-carbide.com/
Phone / WhatsApp: +86 15804230746
We reply to all inquiries within 24 hours.

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Absolutely. We welcome global distributors and partners to expand local markets together.
We provide distributor pricing, technical training, and marketing support.

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Our products are widely applied in:
Laboratory heat treatment and materials analysis
Industrial kilns and powder metallurgy
Ceramic sintering and metal annealing
Dental prosthesis processing and debinding
High-temperature insulation and furnace lining systems

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We supply a full range of high-temperature heating products including:
Electric heating elements: Silicon Carbide heating elements, Molybdenum Disilicide heating elements, and heating element accessories
Ceramic fiber products: Ceramic fiber boards, wool, blankets, paper, cloth, fabrics, modules, and custom shapes

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