1700°C High-Purity MoSi₂ Heating Element

Custom Size U-Shaped MoSi2 Heating Element

1700°C High-Purity MoSi₂ Heating Element for Dental Sintering Furnaces

The 1700°C High-Purity MoSi₂ Heating Element from ZYLAB is specially designed for use in dental sintering furnaces, including furnaces for zirconia crown sintering and ceramic dental restoration processing. Manufactured with premium molybdenum disilicide (MoSi₂), this element delivers stable performance under high temperatures, outstanding oxidation resistance, and long service life.

Description

ZYLAB MoSi₂ Heating Element for Dental Sintering Furnaces

Introduction

Its compact design and high purity level ensure safe, efficient, and uniform heating in small dental furnaces with limited chamber space.

Available Models & Customization

Structure Diagram of U-Shaped MoSi₂ Heating Element

Model: U-shaped MoSi₂ Heating Element
Standard Diameters: 3/6, 4/9, 5/10, 6/12, 7/14, 9/18, 10/18, 12/24 mm
Voltage: 220V–380V (customizable)
Custom Specs Example: φc/φd = 6/12 mm, Le = 350 mm, Lu = 300 mm, a = 60 mm

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ZYLAB also offers a full range of accessories for MoSi₂ heating elements to ensure safe and efficient installation.

Applications of MoSi₂ Heating Element for Dental Sintering Furnaces

Dental Zirconia Crown Sintering
Ceramic Restoration Firing
High-Temperature Dental Laboratory Furnaces
Zirconia Block Preheating and Annealing
Small-Scale Precision Sintering Equipment

Features & Benefits

Rated for 1700°C Continuous Operation
Ideal for dental zirconia sintering and high-temperature ceramic processing.
Made from High-Purity MoSi₂ Material
Ensures strong resistance to oxidation and chemical corrosion in air atmospheres.
Fast Heating & Stable Output
Rapid ramp-up speed and consistent electrical performance at high temperatures.
Compact Size for Dental Furnace Chambers
Tailored for small chamber volumes typically used in dental labs.
Extended Service Life
Forms a protective SiO₂ layer in oxidizing environments, reducing degradation.
Custom Dimensions Available
Support for OEM/ODM furnace models—length, diameter, and resistance value can be tailored.

Physical & Chemical Properties

Density	5.6–5.8 g/cm³
Bending Strength	≥15 kg/mm²
Max Working Temperature	1700°C
Surface Load	5–15 W/cm²
Water Absorption	≤0.2%
Thermal Elongation	~4%

Oxidation Resistance:
At high temperatures, a dense quartz (SiO₂) layer forms on the surface, preventing further oxidation. If the temperature exceeds 1700°C, the SiO₂ layer melts (m.p. ≈1710°C), but reforms once cooled, maintaining protection.

Avoid prolonged use between 400–700°C, as severe low-temperature oxidation may cause element degradation.

MoSi₂ Heating Element Installation Guidelines

Because MoSi₂ elements are brittle at room temperature and ductile at high temperature, careful handling is required:

General Recommendations:

Always use vertical mounting for U-type elements. If horizontal mounting is needed, use high-temperature insulating supports.
The cone ends must extend into the furnace chamber.
Do not overtighten the power connectors initially. Tighten again when heated to avoid breakage.
Use matching ceramic spacers to separate the shanks.

Installation Steps:

Remove the wooden block from between the shanks.
Insert the element through the ceramic spacer into the mounting hole.
Push the element in until it touches the wooden block inside the furnace.
Fill any gaps with alumina fiber.
Install the ceramic fixture, aligning all screws in one direction.
Once all elements are in place, install the power tracks, ensuring they do not contact the fixture to prevent short circuits.