About Huadong
Founded in 1986, Yueqing Huadong Instrument Factory has, through nearly 40 years of accumulation and development and the joint efforts of all its employees, become the sole supplier of industrial automation equipment development, production, and sales in the national instrument and meter industry.
  • 150 sets

    It has an annual production capacity of 150 sets of various industrial tooling equipment.

  • 20+ of them

    Our products are distributed to large and medium-sized enterprises in more than 20 provinces and cities across the country.

  • 30+ items

    We have obtained 4 Chinese invention patents and nearly 30 utility model patent certificates.

Quality and Sustainability
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  • Yueqing Huadong Instrument And Meter Factory
  • Yueqing Huadong Instrument And Meter Factory
  • Yueqing Huadong Instrument And Meter Factory
  • Yueqing Huadong Instrument And Meter Factory
  • Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Customized Solutions
Power Station/Power Plant
Power Station/Power Plant Yueqing Huadong Instrument And Meter Factory

The safe and stable operation of power plant units relies heavily on precise and reliable temperature monitoring. From the boiler furnace and superheater to the main steam piping and the turbine itself, every temperature measurement point serves as a "nerve ending" for the unit's operation. However, many thermocouples currently in use across the industry suffer from issues such as rapid high-temperature drift, short service life, susceptibility to wear and corrosion, and poor vibration resistance—limitations stemming from their materials, manufacturing processes, and structural designs. These flaws not only lead to inaccurate readings and reduced combustion efficiency but also frequently trigger unplanned shutdowns, resulting in significant economic losses. Drawing on 40 years of expertise in the R&D and manufacturing of industrial temperature sensing components, our factory has developed a series of highly reliable thermocouples specifically engineered to resolve these issues at the source for the complex operating conditions of power plants.
We offer a comprehensive range of calibration types—including K, N, E, J, T, S, R, B, Pt100, and Pt1000—with electrode materials optimized for specific temperature ranges. Sheath materials are selected based on operating conditions, utilizing options such as 304/316L stainless steel, 310S high-temperature stainless steel, wear-resistant alloy steel, and Hastelloy to effectively withstand harsh environments characterized by high temperatures, abrasion, and corrosion. Critical wear zones undergo surface treatments—such as aluminizing or wear-resistant spray welding—which more than double the surface hardness and extend the service life against erosion and abrasion by three to five times. The protection tubes are manufactured using a seamless, one-piece forming process, eliminating welded joints; the terminal connections feature a dual high-pressure sealing structure capable of withstanding the high-pressure conditions found in power plant piping, thereby eliminating the risk of media leakage. We support various mounting methods—including threaded, flanged, and compression fitting connections—with strict dimensional tolerances to ensure easy installation and replacement, significantly reducing downtime for maintenance. Furthermore, we offer full customization of specifications, including insertion depth, diameter, calibration type, mounting method, wiring configuration, and explosion-proof rating.

Chemical And Petrochemical
Chemical And Petrochemical Yueqing Huadong Instrument And Meter Factory

For the complex and high-risk working conditions in the chemical industry, which are characterized by flammability, explosiveness, strong corrosion, high temperature and pressure, and significant equipment vibration, our factory's explosion-proof thermocouples and thermal resistors can achieve stable and accurate temperature measurement without fear of medium corrosion or equipment vibration, thus eliminating potential safety hazards. The accompanying explosion-proof electric heaters are pressure-resistant and leak-proof, suitable for continuous production. Additionally, we provide a full set of installation accessories and integrated complete solutions, effectively addressing industry challenges such as equipment damage, frequent downtime, and high operation and maintenance costs. These solutions fully meet the safety supervision standards and long-term stable production needs of the hazardous chemical industry.

Injection Molding
Injection Molding Yueqing Huadong Instrument And Meter Factory

Addressing the core issues in the rubber and plastic injection molding industry, such as inaccurate temperature control, fragile components, high energy consumption, and a high rate of defective products, our factory's high-precision thermocouples and thermal resistors exhibit rapid response and precise temperature control, effectively reducing product defects. The accompanying ceramic, cast aluminum, and hot runner heaters provide uniform temperature rise and strong durability, significantly reducing the frequency of downtime for replacement. Additionally, our dedicated electric heating element processing machinery aids rubber and plastic component manufacturers in achieving automated mass production, enhancing product consistency, reducing labor costs, and meeting the rigid production demands across the entire industry.

Iron And Steel Metallurgy
Iron And Steel Metallurgy Yueqing Huadong Instrument And Meter Factory

In view of the production characteristics of the metallurgical heat treatment industry, such as high temperature, dust erosion, severe wear, and harsh working conditions, our high-temperature wear-resistant and shock-resistant thermocouples can withstand temperatures above a thousand degrees Celsius, resist oxidation and erosion, and maintain stable temperature measurement without failure. The specialized industrial furnace electric heating components are resistant to high temperatures, are not prone to deformation and aging, and are suitable for the entire process scenarios including annealing, quenching, and sintering. When paired with a full set of high-temperature specialized accessories, they provide one-stop compatibility for long-term continuous high-temperature operations in industrial furnaces, solving the problems of traditional accessories that are prone to damage, poor compatibility, and insufficient equipment stability.

Hot Runner System
Hot Runner System Yueqing Huadong Instrument And Meter Factory

As a core component of injection molding systems, the performance of a hot runner system directly determines product quality, production efficiency, and overall costs. However, the industry currently faces common challenges such as insufficient temperature control precision, short service lives, high energy consumption, and cumbersome maintenance. Leveraging 40 years of expertise in industrial heating technology, our factory has developed a series of hot runner heaters with superior performance and enhanced reliability to fundamentally resolve these issues.
Our heaters utilize imported high-temperature nickel-chromium alloy for the core heating wire, offering excellent oxidation and creep resistance; the continuous service life exceeds 20,000 hours—four to six times that of standard products. The construction features an inner layer of high-purity magnesium oxide powder for insulation, a middle layer of high-temperature-resistant crystalline magnesium oxide, and an outer sheath of 304 or 316L stainless steel. This design ensures an insulation resistance of ≥100MΩ and high dielectric strength, effectively eliminating the risk of electrical leakage or breakdown. Backed by 40 years of R&D and manufacturing experience, we offer fully customized specifications—including diameter, length, power, voltage, and lead-out configuration. Standard custom orders can be delivered within 3–5 days, with expedited processing available for urgent requests. We provide comprehensive technical support—from initial selection and installation guidance to ongoing maintenance—helping customers optimize their hot runner heating solutions.

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Exhibition
& Events
We regularly participate in global professional exhibitions across Europe, Southeast Asia, the Middle East and North America.
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Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory
Yueqing Huadong Instrument And Meter Factory