Products
MengziIndustrial High-Temperature Electric Heating Plate
Category:
MengziGlass-ceramics
Product Description
What are the core specifications? Substrate withstands >1400°C, maximum surface temperature 400-500°C, electro-thermal conversion efficiency 99.6%, temperature uniformity ±5°C, heating rate 20°C/min, power density up to 20W/cm², service life over 30,000 hours.
What scenarios is it suitable for? New energy battery drying, chemical reactor heating, semiconductor preheating, printing and coating drying, laboratory high-temperature testing, injection molding machine heating, etc.
What advantages does it have over traditional industrial heating methods? Surface-uniform heating without hot spots; far-infrared direct radiation penetrates for high thermal efficiency; glass-ceramic resists thermal shock, no oxidation or deformation; thin and lightweight, can be directly embedded in equipment; safe insulation, lifespan up to 30,000 hours.
Who manufactures it? Dongguan Mingda Glass Co., Ltd., founded in 2007, with 19 years of specialty glass experience, holding 31+ patents (including the "Graphene Glass-Ceramic Heating Plate" patent CN 222803031 U), and participating in drafting the industry standard T/UNP 249—2024 "Electric Heating Coated Glass".
The industrial high-temperature electric heating plate is a high-performance heating core component launched by Mingda Glass for the industrial manufacturing sector. The product uses high-temperature resistant glass-ceramic as the substrate, with a graphene or thick-film heating circuit prepared on the surface through magnetron sputtering or screen printing. After power-on, the heating layer generates uniform Joule heat and efficiently transfers heat in the form of 8-14μm far-infrared radiation, with surface temperatures reaching 400-500°C (higher customizable).
Compared with traditional metal heating tubes or resistance wires, industrial high-temperature electric heating plates have significant advantages such as fast heating, uniform temperature, thermal shock resistance, long anti-oxidation lifespan, and safe insulation. The product is widely used in new energy, semiconductors, chemicals, printing, medical, and various industrial drying equipment. Mingda Glass has 19 years of specialty glass R&D and manufacturing experience, holds 31+ patents, and participated in drafting the industry standard T/UNP 249—2024 "Electric Heating Coated Glass".
1. Industrial Heating Pain Points and Surface Heating Innovation
In industrial drying, curing, and high-temperature testing, traditional resistance wires or metal heating tubes often have the following pain points:
- Uneven heating: Linear heat sources easily cause local overheating, resulting in uneven drying, deformation, or scorching of products.
- High thermal inertia: Slow heating and cooling lead to poor temperature control precision and high energy consumption.
- Oxidation loss: Metal heating bodies easily oxidize in high-temperature and high-humidity environments, significantly shortening lifespan.
- Safety hazards: Exposed heating wires pose risks of short circuits and electric shock.
Industrial high-temperature electric heating plates use surface heating technology. Heat is mainly radiated directly onto the workpiece without air convection, resulting in minimal heat loss. The glass-ceramic substrate not only has excellent insulation performance but also an extremely low thermal expansion coefficient, capable of withstanding severe temperature changes without cracking, providing a stable, safe, and long-life heating core for industrial equipment.
2. Technical Principle
2.1 High-Temperature Resistant Glass-Ceramic Substrate
Glass-ceramic is a composite material composed of a microcrystalline phase and a glass phase. Its internal crystal structure gives it an extremely low thermal expansion coefficient (close to zero expansion) and extremely high mechanical strength. It can withstand temperatures >1400°C and can withstand thermal shock such as cold water spraying, making it an ideal substrate for high-power industrial heating plates.
2.2 Graphene/Thick-Film Heating Layer
A graphene coating or thick-film resistor circuit is prepared on the surface of the glass-ceramic. Graphene has extremely high carrier mobility. After power-on, it generates uniform Joule heat, with an electro-thermal conversion efficiency of up to 99.6% and a heating rate of up to 20°C/min. The thick-film resistor process is suitable for industrial scenarios requiring specific power density and high-voltage power supply.
2.3 Smart Temperature Control System
The industrial electric heating plate can be equipped with a PID smart temperature control module or connected to a PLC system. Combined with thermocouples or K-type temperature sensors, it achieves precise temperature control of ±1°C. It supports multi-zone independent heating control to meet complex process curve requirements.
Glass-ceramic substrate withstands >1400°C, maximum surface temperature 400-500°C, electro-thermal conversion efficiency 99.6%, temperature uniformity ±5°C, heating rate 20°C/min, maximum power density 20W/cm², service life over 30,000 hours.
3. Core Advantages
| Comparison Item | Traditional Metal Heating Tube/Resistance Wire | Industrial High-Temp Electric Heating Plate |
|---|---|---|
| Heating Form | Linear heating, presence of overheating blind spots | ✅ Surface-uniform heating, no dead corners |
| Heat Transfer Method | Mainly air convection, large heat loss | ✅ Far-infrared radiation, direct penetrating heating |
| Temp Resistance & Lifespan | Easy oxidation, lifespan 5,000-10,000 hours | ✅ Withstands 1400°C, no oxidation, lifespan >30,000 hours |
| Temp Control Response | High thermal inertia, slow heating | ✅ Fast heating (20°C/min), precise temperature control |
| Safety | High voltage exposed, risk of electric shock | ✅ Glass-encapsulated insulation, safe and reliable |
| Installation Space | Large volume, requires brackets | ✅ Thin and flat, direct embedding |
4. Key Technical Parameters
| Performance Indicator | Typical Parameter |
|---|---|
| Substrate Material | Glass-ceramic (withstands >1400°C) / Special ceramic |
| Heating Material | Graphene coating / Thick-film resistor |
| Maximum Surface Temperature | 400-500°C (higher customizable) |
| Electro-Thermal Conversion Efficiency | 99.6% |
| Temperature Uniformity | ±5°C (locally ±2°C) |
| Heating Rate | 20°C/min |
| Operating Voltage | AC 220V / 380V / DC 12V-48V |
| Power Density | Typical 1-5W/cm², up to 20W/cm² |
| Far-Infrared Wavelength | 8-14μm |
| Service Life | >30,000 hours |
| Temperature Control Method | PID smart control, PLC control, mechanical thermostat |
5. Application Scenarios
🔋 New Energy Battery Drying
Lithium battery electrode drying, battery pack preheating, energy storage equipment temperature control
🧪 Chemical Reactor Heating
Chemical pipeline heat tracing, reactor insulation, storage tank heating
🖨️ Printing & Coating Drying
Ink curing, coating drying, paper drying
🔬 Laboratory High-Temp Testing
High-temperature heating stages, material testing, semiconductor preheating
🏭 Injection Molding & Mold Heating
Injection molding machine barrel heating, mold insulation, hot press forming
🌾 Agricultural & Food Drying
Tea fixation, herb drying, fruit and vegetable dehydration
In the industrial drying sector, the high-efficiency far-infrared radiation of the electric heating plate can directly penetrate the interior of materials, significantly shortening drying time, with an energy saving rate of over 35%; in the new energy sector, glass-ceramic heating plates do not release impurities, meeting the stringent requirements of cleanrooms.
6. Customization Service
Mingda Glass provides full-process customization services from substrate cutting, heating layer preparation to temperature control system integration, supporting OEM/ODM cooperation.
① Requirement Communication
Clarify required dimensions, power density, operating voltage, and maximum temperature requirements
② Thermodynamic Design
Design heating circuit layout and power distribution based on equipment space and temperature requirements
③ Sample Prototyping
Complete sample production in 7-15 working days, providing heating curves and thermal imaging tests
④ Validation & Mass Production
After customer validation and confirmation, complete batch delivery in 15-30 days, supporting private label
7. Why Choose Mingda Glass?
Since its establishment in 2007, Dongguan Mingda Glass Co., Ltd. has always focused on the R&D and manufacturing of specialty glass such as glass-ceramic, electric heating glass, and conductive glass. The company has 19 years of industry experience, holds 31+ patents, has a 6000㎡ production base, and participated in drafting the industry standard T/UNP 249—2024 "Electric Heating Coated Glass".
| Company Advantage | Description |
|---|---|
| 19 Years Industry Experience | Focused on specialty glass R&D and manufacturing since 2007 |
| 31+ Patents | Covering glass-ceramic heating plates, graphene heating plates, anti-fog glass, etc. |
| Industry Standard Participant | Drafting unit of T/UNP 249—2024 "Electric Heating Coated Glass" |
| Proprietary Patented Product | "Graphene Glass-Ceramic Heating Plate" patent (CN 222803031 U) |
| 6000㎡ Production Base | Equipped with magnetron sputtering coating lines, laser etching equipment, and glass-ceramic production lines |
| Full-Dimension Customization | Size, power, voltage, shape, and temperature control method all customizable |
8. Frequently Asked Questions (FAQ)
Mingda Glass Co., Ltd
Telephone: +86-189-2253-2007
E-mail: md@mingdaglass.com
Address: No.8, Yiwei Industrial Road 4, Shatian Town, Dongguan City, Guangdong Province
Online message
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