NPR-RIKEN HEAT TECHNO’s Strengths

As a major manufacturer of electric heating wires, we have accumulated thermal control technology over the course of 50 years and continued to provide heating elements and industrial furnaces to industry. Our unique PYROMAX heating elements and industrial furnaces that incorporate PYROMAX are an amalgamation of this technology, and are used by many customers for their exceptional energy-saving design. On the base of our many years of experience and our proven track record, we support our customers to ensure their needs are fulfilled and their concerns are resolved.

  • More than 50 years of history
    as a specialized thermal engineering
    manufacturer

  • Heating elements "PYROMAX" and ceramic heating elements "PYROMAX SUPER"

  • Handles a wide temperature range of 400℃ to 1,800℃

  • From material selection and processing to industrial furnace manufacturing and maintenance

  • Contribution to
    SDGs and
    a decarbonized society

Power1 More than 50 years of history as a specialized thermal engineering manufacturer

We have been researching and developing thermal control technologies for over 50 years, and our innovative, original technologies are utilized across a wide range of industries, including semiconductors, steel, glass, chemicals, and automobiles.
Industrial furnaces and module products (thermal equipment) are essential for the development of new materials and heat treatment in various industries.
We have developed a range of furnaces that include general heat treatment furnaces as well as hydrogen gas-fired heating furnaces, vacuum furnaces, continuous ceramic sintering furnaces, and ultra-high temperature furnaces, and providing strong support for the technical frontier of many industries.
Our lineup includes molten metal heating elements with excellent heat resistance for use up to 1,400°C, powder metallurgy heating elements "PYROMAX" offering outstanding resistance to high-temperature deformation and oxidation with a maximum operating temperature of 1,420°C, and ceramic heating elements "PYROMAX SUPER" with exceptional heat resistance for use up to 1,800°C. These products cover a broad range of applications that extend to the ultra-high temperature domain.
With our advanced thermal engineering technology, we support a range of industries as society accelerates towards decarbonization.

NPR-RIKEN HEAT TECHNO Business Structure

NPR-RIKEN HEAT TECHNO’s heat-related businesses

  • PYRORIK

    • Industrial furnaces • Test furnaces

  • Maintenance

    ・Thermal assessment of existing industrial furnaces ・Repairs and modifications

  • PYROMAX

    ・Metal heating elements
    (molten metal materials/powder metallurgy materials)     ・Ceramic heating elements

  • Module Products

    ・Heater units ・Radiants
    Tube heaters     ・ Immersion tube heaters

  • Refractory products

    ・Crucibles and immersion tubes ・Refractory products for non-ferrous molten metal ・Refractory products for electric heating applications ・General-purpose refractory products

Power2 Heating Elements "PYROMAX" and
Ceramic Heating Elements "PYROMAX SUPER"

"Pyromax" and "Pyromax Super" which are a series of high-temperature heating elements that meet the needs of a wide range of industries are original brands developed by consolidating our company's technology.
Please leave everything from material selection to processing methods to us.

Power3 Handles a wide range of temperatures from 400℃ to 1800℃

We offer a range of materials that can handle everything from low temperatures of 400℃ up to high temperatures of 1,800℃. Starting with materials, we can offer proposals tailored to your needs and the challenges you face.
Our operations extend to furnace manufacturing, and so we can offer comprehensive proposals and support.

400度から1,800度の図

We can accommodate applications related to heat treatment in various industries such as automotive, steelmaking, glass, ceramics, semiconductors, and aluminum.

Power4 From material selection to processing, industrial furnace manufacturing and maintenance

Our strength is that we can handle everything from selecting the material for the heating element to processing and manufacturing the industrial furnace incorporating the heating element in accordance with the customer's request.
As one of Japan's leading manufacturers of heating elements, we provide comprehensive support.

Power5 Contribution to SDGs and a decarbonized societyET2 (Eco Thermal Technology) proposals

ET2（Eco Thermal Technology）is a collective term for the technologies that NPR-RIKEN HEAT TECHNO can provide to contribute to the achievement of a low-carbon society.
In ET2 , for resistance heating, the latest analysis technologies are used to optimize the matching between heaters and workpieces, improving thermal efficiency. This enables us to offer solutions that surpass conventional resistance furnaces in terms of energy savings, carbon reduction, and compact design.

STEP1 Thermal efficiency improvement

Problems with conventional electric furnaces

Depending on the combination of the workpiece and the heating element, thermal efficiency may not improve due to factors such as the workpiece’s heat reflection.

It is essential to fully understand the characteristics of the heating element, the core component of an electric furnace, when designing the furnace. Based on a comprehensive database of heater materials cultivated over many years, we are able to propose the optimal heater materials tailored to each application.

STEP2 Simulation

Problems with combustion furnaces

Due to structural requirements such as an exhaust port, a larger heat output is necessary compared to electric furnaces, resulting in lower effective heat. Designing the heat fluid dynamics is also challenging, and this makes it impossible to achieve the same thermal efficiency as electric furnaces.

When designing our electric furnaces, we utilize simulation technology that takes into account the purpose of use and environment, and conduct simulations from every angle, from selecting the heating element to analyzing the thermal fluid, before delivering the optimal industrial furnace.

Verification with compact test furnaces

※The table can be scrolled horizontally

Verification with small test furnaces
① Heating Materials ② Verification with test furnace

・Heating Materials with excellent strength against high temperatures

・Superior properties over competitors

・Proposals that are optimal for the customer's usage environment

・Heater lifespan verification with small test furnace