中日本炉工業 List of Products and Services

We would like to introduce the features of "CVD (three-layer) coating" conducted by Chūnihon Rōkōgyō Co., Ltd. It is suitable for fields that require resistance to seizure, wear, and corrosion, as well as for molds that operate at high temperatures and for stainless steel press processing. Additionally, in the case of TiC-coated products, it contributes to the improvement of the lifespan of cold forging and press molds that require high hardness and wear resistance. 【Inspection Equipment (Partial)】 ■ Micro Vickers hardness tester ■ Shore hardness tester Rockwell hardness tester ■ Inverted metallurgical microscope ■ Desktop microscope + Energy dispersive X-ray analyzer ■ Microscope *For more details, please refer to the related links or feel free to contact us.

• Processing Contract

The term "CVD method" is an abbreviation for Chemical Vapor Deposition, which refers to chemical vapor deposition. This technology involves heating a mixed gas to approximately 1000°C and causing a chemical reaction on the surface of the substrate to deposit materials such as titanium carbide (TiC), titanium carbonitride (TiCN), and titanium nitride (TiN). Even outside the scheduled dates, we have established a system for implementing CVD (three-layer)/TiC treatment, so we look forward to your inquiries. 【Inspection Equipment (Partial)】 ■ Micro Vickers hardness tester ■ Shore hardness tester, Rockwell hardness tester ■ Inverted metallurgical microscope ■ Desktop microscope + energy-dispersive X-ray analyzer ■ Microscope *For more details, please refer to the related links or feel free to contact us.

• Processing Contract

We would like to introduce the equipment owned by Chūnippōn Rōkōgyō Co., Ltd. We have a "horizontal vacuum heat treatment furnace" suitable for small lot products and mold components, a "three-chamber continuous vacuum heat treatment furnace" for mass production parts, an "oil-cooled vacuum heat treatment furnace" for oil-cooled steel, a "vacuum replacement vacuum heat treatment furnace" dedicated to tempering, a "thermal CVD device" with a TiC three-layer structure, a sub-zero device for preventing aging changes, and a "vacuum degreasing cleaning device" for degreasing cleaning, among others. Please feel free to contact us when you need our services. 【Equipment Owned (Partial)】 ■ Horizontal Vacuum Heat Treatment Furnace - NVF-30P - NVF-50P - NVF-50PC - NVF-200PC - NVF-500P *For more details, please refer to the related links or feel free to contact us.

• Industrial Furnace

The heat treatment at Chūnippon Ro Kōgyō Co., Ltd. is conducted entirely using our own furnaces. We possess a "large vacuum furnace" capable of uniform heating, a "small vacuum furnace" that has all the functions of vacuum furnace processing despite its compact size, and a "three-chamber continuous vacuum heat treatment furnace" that excels in production efficiency. Additionally, we have a "large CVD device" that ensures effective dimensions to meet customer needs and can achieve uniform deposition on large press molds, ceramic substrates, and SUS mesh through mass flow gas control. 【Equipment Owned】 ■ Large vacuum furnace ■ Small vacuum furnace ■ Three-chamber continuous vacuum heat treatment furnace ■ Large CVD device *For more details, please refer to the related links or feel free to contact us.

• Industrial Furnace

At Chūnihon Ro Kōgyō Co., Ltd., heat treatment specialists are in charge of the processing. We use our own small furnaces, enabling efficient processing tailored to size. We have received strong support from many customers and do not disappoint their expectations. We perform high-speed, annealing, and sub-zero treatments every day, so customers do not have to wait. Additionally, we actively encourage obtaining heat treatment specialist qualifications not only in the heat treatment technology department but also in other departments. [Qualifications Obtained] ■ Special Grade Specialist: 2 ■ Grade 1 Specialist: 14 ■ Grade 2 Specialist: 41 ■ Vocational Training Instructor: 3 *For more details, please refer to the related links or feel free to contact us.

• Industrial Furnace

We would like to introduce the 4th factory of Chūnippon Ro Kōgyō Co., Ltd. We possess equipment such as tapping drill presses, TIG welding machines, and grinders. Each unit undergoes rigorous testing and inspection, and we continually strive to improve quality. Our technology has been recognized, and we supply it to major domestic companies, starting with Nippon Steel. Furthermore, we also export to overseas markets including China, Taiwan, South Korea, Thailand, Indonesia, Vietnam, the Philippines, Malaysia, India, and Myanmar. 【Equipment Owned】 ■ Tapping Drill Press ■ Precision Metal Cutting Machine ■ TIG Welding Machine ■ Grinder *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

We would like to introduce the third factory of Chūnippon Loco Co., Ltd. We possess various equipment, including a 2.8-ton overhead crane, precision metal cutting machines, and large CVD systems. Additionally, we are equipped with testing machines such as Vickers hardness testers, inverted metal microscopes, and microscopes. Please feel free to contact us if you have any inquiries. 【Equipment Owned (Partial)】 ■ 2.8-ton overhead crane ■ 4.8-ton overhead crane ■ Precision metal cutting machine ■ Rockwell hardness tester ■ Vickers hardness tester *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

We would like to introduce the second factory of Chūnihon Rōkōgyō Co., Ltd. We have a wide variety of equipment, including traveling cranes, hydraulic presses, shearing machines, and drill presses. Our company has the capability to manufacture vacuum furnaces, electric furnaces, and combustion furnaces, and we are fully equipped in the manufacturing department. We can provide complete after-sales service. Please feel free to consult us when needed. 【Equipment Owned】 ■ Traveling Crane ■ Hydraulic Press ■ Shearing Machine ■ Drill Press ■ TIG Welder ■ Arc Welder *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

We would like to introduce the No. 1 Factory of Chūnippon Loco Co., Ltd. We possess various equipment including vacuum heat treatment furnaces and ASP, as well as testing machines such as nano indenters, automatic polishing machines, and resin embedding machines. At our company, we conduct rigorous testing and inspections for each unit, constantly striving to improve quality. Our technology has been recognized, and we supply it to major domestic companies, starting with Nippon Steel. 【Equipment Owned】 ■ Vacuum Heat Treatment Furnace ■ ASP ■ Nano Indenter ■ Cutting Machine ■ Automatic Polishing Machine ■ Resin Embedding Machine *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

We would like to introduce the types of steel materials. In addition to SKD series such as DC11 and DC53 made by Daido Steel, and SVERKE21 and ORVER made by Uddeholm, there are also matrix series and SKH series such as SKH51 and H51 and KMX made by Nippon Steel & Sumitomo Metal Corporation. For those considering a heat treatment furnace, you can choose a suitable furnace based on the steel materials. 【Types of Steel Materials】 ■SKD series ■SKH series ■SUS series ■SK series ■SCM series ■SC series *For more details, please download the PDF or feel free to contact us.

• Other metal materials

The "low-temperature heat treatment furnace" is suitable for heat treatment up to 300°C and can achieve uniform heating by circulating hot air with a stirring fan. Additionally, it supports various options and can also be used for low-temperature tempering after vacuum heat treatment. Our company caters to a wide range of needs, from small to large machines, both domestically and internationally, and offers fully customized solutions, including "creating and delivering, as well as after-sales maintenance." Please feel free to contact us when you need assistance. 【Various Furnaces】 ■ Small Gas Carburizing Furnace ■ Batch Annealing Furnace ■ Low-Temperature Heat Treatment Furnace ■ Surface Modification Equipment *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

This furnace automatically loads and unloads to multiple heating furnaces via a traversing system, and transports and retrieves to the slow cooling chamber fully automatically. It is suitable for processing mass-produced items such as cold-forged parts. Additionally, since we conduct heat treatment using our own furnaces, we have abundant know-how in heat treatment and provide support to ensure that even beginners can easily perform heat treatment. 【Various Furnaces】 ■ Small Gas Carburizing Furnace ■ Batch Annealing Furnace ■ Low-Temperature Heat Treatment Furnace ■ Surface Modification Device *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "small gas carburizing furnace" is a compact version of the conventional carburizing furnace, suitable for carburizing a variety of small parts in small quantities. It is actively used in a wide range of applications, including quenching and tempering of tool steels such as die steel and high-speed steel, solution treatment of austenitic stainless steel, precipitation hardening of precipitation hardening stainless steel, annealing of various steel types including titanium alloys, magnetic annealing, vacuum brazing, and various other heat treatments. Please feel free to contact us when you need our services. 【Various Furnaces】 ■ Small Gas Carburizing Furnace ■ Batch Annealing Furnace ■ Low-Temperature Heat Treatment Furnace ■ Surface Modification Equipment *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-S type" is a vacuum furnace specialized for sintering, capable of raising the maximum temperature to 1600°C. It can be used by switching between a pre-sintering furnace and a main sintering furnace with a single power supply unit, temperature control system, and vacuum exhaust system. Additionally, our company caters to various needs, from small to large machines, both domestically and internationally, providing fully customized solutions, including "creation to delivery and after-sales maintenance." [Heat Treatment Capabilities] ■ Sintering *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-T type" is a vacuum furnace specialized for the tempering temperature range, where the heating capacity is generally difficult to stabilize in conventional vacuum furnaces. It aims to improve temperature distribution uniformity and energy efficiency. It is also versatile in various applications, including quenching and tempering of tool steels such as die steel and high-speed steel, solution treatment of austenitic stainless steel, aging treatment of precipitation hardening stainless steel, annealing of various steels including titanium alloys, magnetic annealing, and vacuum brazing, among other heat treatments. 【Processable Steel Materials】 ■ Molds ■ General parts steel *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-OQ type" is a vacuum furnace divided into two chambers: a heating chamber and a quenching oil tank (gas cooling chamber), and it is capable of handling oil-quenched steel, enabling versatile heat treatment. It is a long-standing product that embodies the technology of Chūnichi Furnace Industry, accommodating sizes from small to large. Additionally, since we conduct heat treatment using our own furnaces, we have abundant know-how in heat treatment and provide support to ensure that even beginners can easily perform heat treatment. 【Processable Steel Materials】 ■ SKD ■ SKS ■ SUJ ■ SCM435 *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-V Type" is a vertical vacuum furnace that reduces distortion by heat treating long materials in an upright position. It is a long-standing product that showcases the technology of Chūnichi Furnace Industry, accommodating sizes from small to large. It is widely used for various applications, including quenching and tempering of tool steels such as die steel and high-speed steel, solution treatment of austenitic stainless steel, aging treatment of precipitation hardening stainless steel, annealing of various steel types including titanium alloys, magnetic annealing, and vacuum brazing. Please feel free to contact us for inquiries. 【Processable Steel Materials】 ■SKD11 ■SKD61 ■SUS304 *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-B type" is a vacuum brazing furnace that allows for the prevention of filler metal evaporation and improvement of joint quality by introducing partial gas during heating. Due to its special specifications, the furnace adopts a metal reflector and metal heater system in its internal structure, enabling brazing in a clean environment. It is a long-standing product that incorporates the best of Chūnippon Furnace Industry's technology and accommodates both small and large sizes. Please feel free to contact us when you need assistance. 【Processable Steel Materials】 ■ Filler Metals → Gold Filler ■ Silver Filler ■ Copper Filler ■ Nickel Filler * For other filler metals, please consult us. * For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The "NVF-C type" is a vacuum heat treatment furnace with convection heating that improves uniform heating by incorporating a stirring fan inside the furnace. By enhancing uniformity, it is possible to stabilize quality, reduce hardness variations, and shorten processing time. From small to large machines, we cater to various needs both domestically and internationally, providing fully customized solutions, from "creation to delivery, including after-sales maintenance." 【Processable Steel Materials】 ■ SKD11 ■ SKD61 ■ SUS304, etc. *For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

The pressure cooling vacuum heat treatment furnace "NVF-P type" is a long-standing product that embodies the essence of Chubu Nippon Furnace Industry's technology. It is actively used in a wide range of applications, including quenching and tempering of tool steels such as die steel and high-speed steel, solution treatment of austenitic stainless steel, aging treatment of precipitation hardening stainless steel, annealing of various steel types including titanium alloys, magnetic annealing, and vacuum brazing, making it suitable for various heat treatment processes. Please feel free to contact us when you need assistance. 【Processable Steel Materials】 ■ SKD11 ■ SKD61 ■ SUS304 * For more details, please download the PDF or feel free to contact us.

• Industrial Furnace

<Strengths of Chūnippō Ro Kōgyō> 1. Capable of meeting all needs, from small to large machines. 2. Full custom-made service from "creation to delivery, including after-sales maintenance." 3. We also accept heat treatment using our own furnaces and possess expertise in heat treatment. We provide support to ensure that even beginners in heat treatment can easily perform it! First-time considerations for heat treatment are also welcome! ■ Heat Treatment Methods Quenching / Tempering / Brazing / Oil Quenching / Sintering / Carburizing ■ Materials High-speed steel (HSS) / Die steel / Stainless steel / Carbide, etc. ■ Fields Medical / Metal products / Transportation equipment (automobiles, motorcycles, aviation) Steel / Molds / Machine tools / Light metals Information devices / 3D printers / Watches / Glasses / Springs

• Industrial Furnace

"DiMA" is a heat treatment recipe generation system that utilizes AI. It databases the know-how of skilled workers and is recommended for small-lot, diverse production. Customization of images for various industries is possible, and options such as sharing know-how with remote locations and multilingual voice guidance are also available. 【Features】 ■ Utilizes AI ■ Databases the know-how of skilled workers ■ Recommended for small-lot, diverse production ■ Customizable images for various industries ■ Accumulation of work results (work instructions) is possible *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

If you have any of the following concerns, please let us know! ■ I want to shorten the delivery time - With less distortion, the preceding and following processes can be shortened. - Heat treatment can be performed at your preferred timing. ■ I want to reduce costs - Processing costs are reduced due to fewer preceding and following processing steps. ■ I want to improve quality - Quality is improved and stabilized with your unique heat pattern. - By processing in-house, knowledge of heat treatment is accumulated. 【Pressure Cooling Vacuum Heat Treatment Furnace NVF-P Type】 A long-selling product that gathers the technology of Chubu Nippon Furnace Industry. Not just small! We also handle medium and large furnaces! 【Vacuum Heat Treatment Furnace NVF/NVF-C Type】 Excellent cost performance and capable of accommodating a variety of variations. We will create a vacuum furnace that matches your needs! 【Vacuum Brazing Furnace NVF-B Type】 A brazing-specific furnace that maximizes the characteristics of vacuum furnaces. Capable of handling a wide variety of brazed products. 【Vertical Vacuum Furnace NVF-V Type】 Ideal for long materials. Reduces distortion by standing them upright! Other products are also listed! For more details, please download the catalog or contact us.

• Electric furnace
• Industrial Furnace

A plasma nitriding device capable of avoiding modification non-uniformity caused by material shape (edge effect, hollow cathode effect).

• Other processing machines

Despite its small size, it is equipped with all the functions of a vacuum heat treatment furnace and demonstrates excellent performance in the heat treatment of various small quantities of parts.

• Heating device

It automatically detects processed items coming from the previous operation and enables smooth transportation to the next operation even after heat treatment.

• Other processing machines

Soldering of small items, sintering, and burning pure materials is often done using hydrogen atmosphere. The device is designed to be compact and has a rapid heating capability. A muffle is placed inside the furnace to avoid contact between the heater and gas.

• Other processing machines

The support frame for the processed material rotates inside the furnace, ensuring a uniform temperature regardless of shape. Additionally, the upper circulation fan creates a uniform temperature distribution.

• Heating device

A large cart-type heat treatment furnace that allows for easy entry and exit even with large processed products by using cranes and other equipment.

• Heating device

This is an introduction to the large drying furnace handled by Chūnippon Ro Kōgyō Co., Ltd.

• Drying Equipment

This is an introduction to the CVD coating equipment handled by Chūnippon Ro Kōgyō Co., Ltd.

• CVD Equipment

A vacuum cleaning device that uses petroleum-based solvents and enables more effective cleaning through reduced pressure steam cleaning.

• Other cleaning machines

A tray-type straight-through continuous heat treatment furnace that can fully automate the entire process from loading to unloading using a series of equipment including a burnout furnace, quenching furnace, oil tank, cleaning tank, and tempering furnace.

• Heating device

This is an introduction to the retort rotary furnace handled by Chūnihon Rōkōgyō Co., Ltd.

• Other processing machines

A compact design vacuum sintering furnace with minimized installation area.

• Heating device

Vacuum heat treatment furnace ideal for a wide range of medium and small parts.

• Heating device

Small precision parts, small lots, diversification, processing, cost reduction, and improved production efficiency, small vacuum heat treatment furnace.

• Heating device

This is an introduction to the pressurized cooling vacuum heat treatment furnace handled by Chūnippon Ro Kōgyō Co., Ltd.

• Heating device

This is an introduction to the vacuum degassing furnace handled by Chūnippon Ro Kōgyō Co., Ltd.

• Other physicochemical equipment

Batch-type carburizing furnace, vacuum cleaning machine, bright annealing furnace, loading and unloading equipment, and a series of facilities in the stockyard have been automated with FA technology, resulting in a frameless gas carburizing furnace that operates completely unmanned.

• Other physicochemical equipment

A rigid vacuum heat treatment furnace that can process long materials upright with minimal distortion and requires only a small installation space.

• Vacuum forming machine
• Heating device

A versatile vacuum furnace capable of temperature control, ideal for heat treatment of small components.

• Heating device

Completely sealed by a gate valve, a vacuum oil quenching furnace unaffected by oil.

• Heating device
• Granulating Equipment

A vacuum replacement tempering furnace that allows for effective heating of the treated material by stirring the atmosphere gas with a fan installed in the insulated chamber.

• Heating device
• Granulating Equipment

This is an introduction to the large vacuum heat treatment furnace handled by Chūnihon Rōkōgyō Co., Ltd.

• Heating device