DOWAサーモテック List of Products and Services

Our company handles cell-type vacuum heat treatment equipment 'V-TKM' and vacuum carburizing furnace 'Z-TKM'. 'V-TKM' is a cell-type vacuum heat treatment equipment that allows independent temperature and atmosphere control for each chamber. 'Z-TKM' is a vacuum carburizing furnace that helps reduce CO2 emissions and contributes to the realization of a carbon-neutral low-carbon society. We are pleased to announce that our products Z-TKM and V-TKM have been selected as eligible equipment for the fiscal year 2024 supplementary budget energy-saving investment promotion and demand structure transformation support project subsidy. This subsidy program supports advanced equipment with high technological capabilities and energy-saving performance. With a high subsidy rate, we can offer low-cost proposals, so please feel free to consult with us. 【Features of Z-TKM】 ■ Safe environment: No smoke or flames ■ Quality compatibility: Equivalent quality to conventional gas carburizing achieved by combining vacuum carburizing and atmospheric quenching ■ Reliability: Stable operation due to the absence of in-furnace drive mechanisms 【Features of V-TKM】 ■ Capable of vacuum carburizing, vacuum sintering, and brazing ■ Improved quality characteristics through small lot production (reduced variation) ■ Reduced logistics costs through in-house processing (reduced work-in-progress inventory) *For more details, please refer to the PDF materials or feel free to contact us.

• Other surface treatment equipment

The "Z-TKM" is a vacuum carburizing furnace that contributes to reducing CO2 emissions and achieving a carbon-neutral low-carbon society. By combining unique technologies, it can cut factory CO2 emissions (SCOPE 1) by 97% compared to conventional equipment (based on our company's comparison). (A small amount of CO2 from carburizing raw material gas is generated.) Additionally, for CO2 from electricity (SCOPE 2), further reductions are possible by utilizing green energy sources such as green electricity, hydrogen, and ammonia. While inheriting the high versatility, economy, and reliability of the best-selling TKM series, it achieves high environmental performance and productivity by adopting new charge loading methods, high-insulation hot wall structures, and rapid uniform heating and cooling mechanisms. **Features of Z-TKM** - Safe environment: No smoke or fire - Quality compatibility: Equivalent quality to conventional gas carburizing through a combination of reduced pressure carburizing and atmospheric quenching - Space compatibility: Fully compatible with the best-selling TKM series - Operability: Easy operation and maintenance through a unique operational support system - Reliability: Stable operation without in-furnace driving mechanisms - Heating source: Standard electric heating (hydrogen burners and utilization of green energy are also possible)

• Other surface treatment equipment

In response to the societal demand for "carbon neutrality," reducing CO2 emissions in the heat treatment process has become an important issue. Various companies, including automotive manufacturers, construction equipment manufacturers, and specialized heat treatment manufacturers, are considering initiatives. Our company adopts a unique business model centered around two main areas in the field of heat treatment: equipment manufacturing and contract processing. Based on our experience in both hardware and software, we propose CO2 reduction solutions for furnaces that incorporate new technological elements. <Proposed Solutions> - Energy-saving technologies (high-efficiency burners/intermittent operation, etc.) - Energy conversion technologies - Waste heat recovery technologies (binary power generation), etc. Additionally, through high-strength controlled nitriding treatment (DNTN), we can improve strength while reducing distortion, energy consumption per unit, and CO2 emissions. Since we have heat treatment equipment in our own factory, we can conduct demonstration evaluations quickly. If you are considering CO2 reduction and energy saving in heat treatment, please feel free to contact us. 【Features】 - Ability to collect operational data with in-house production equipment - Capability to conduct CO2 reduction demonstration evaluations at our own factory - Expansion of heat treatment business and maintenance bases domestically and internationally.

• Industrial Furnace

"DOWA-Low Temperature DLC" is a coating process that forms a DLC film with excellent wear resistance, adhesion resistance, and low friction by using our unique PVD + P-CVD process. By equipping the film deposition device with a high-voltage pulse power supply, we have achieved an improvement in wear resistance while maintaining the smoothness of the DLC film surface. It is particularly suitable for countermeasures against material adhesion in aluminum press processing molds. 【Features】 (1) Further low-temperature treatment (180-250°C) compared to conventional PVD coatings (2) Extremely smooth film surface due to a droplet-free process (3) Low friction with excellent lubricity (4) Widely used in manufacturing, such as press molds and sliding jigs! *For more details, please contact us or refer to the catalog.

• Surface treatment contract service
• Processing Contract

At DOWA Thermotech, we develop our business with a focus on the entire production environment, including our customers' heat treatment processes. In addition to the development and manufacturing of excellent industrial furnaces that meet customer needs, we also design plants and build FA systems, contributing to improvements in production efficiency and safety. Furthermore, to ensure that industrial furnaces can maintain their performance over the long term, we have established a support system that includes after-sales maintenance. While also considering the relationship with our heat treatment business, we cover all aspects of our customers' heat treatment processes, guaranteeing satisfaction with quality and reliable peace of mind. *For more details, please watch the video below.*

• Industrial Furnace

DOWA Thermotech, which actively expands its overseas business, is steadily growing its operations by leveraging its strength in total support that encompasses development, manufacturing, maintenance, and contract processing. 【Improving service to local customers through localization of procurement and sales functions!】 To promote the localization of key functions in equipment and maintenance operations, the "Global Business Department Thailand Office" was established in 2016 for ASEAN countries and India. Along with strengthening the existing engineering base, we are utilizing manufacturing processes in India and sourcing parts locally to achieve a quicker response to our customers' accelerating overseas expansion in recent years.

• Industrial Furnace
• Heating device

The "TKM Series Heat Treatment Furnace" excels in uniform heating, carburizing, and cooling performance, while also considering quality control and maintenance. In addition to traditional brick furnaces, we have developed ceramic furnaces, electric heating furnaces, and gas heating furnaces, broadly responding to the diverse needs of the heat treatment industry both domestically and internationally. 【Features】 ■ Achieves energy savings with high-efficiency regenerative gas burners ■ Reduces CO2 emissions by over 30%, improving environmental performance ■ Shortens total lead time by 20% ■ Significantly reduces surface temperature of the furnace body with a new insulation structure *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• others
• Industrial Furnace

The "S-TKM Series Heat Treatment Furnace" is a compact and slim continuous furnace that significantly improves productivity compared to batch-type atmosphere heat treatment furnaces, while also achieving space-saving design. By adopting high-performance regenerative gas burners and a new insulation structure, it realizes energy savings and enhances environmental performance. 【Features】 ■ Compact and slim design aimed at space-saving ■ Production capacity is approximately three times that of conventional batch furnaces ■ Significant cost reduction in heating energy *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• others
• Industrial Furnace

The "Hybrid Continuous Gas Carburizing Furnace" is a world-standard type of continuous furnace that employs high-performance regenerative gas burners in the heating zone, achieving a significant reduction in energy consumption. By reducing energy consumption and reevaluating the internal structure of the furnace, CO2 emissions have also been reduced by approximately 30% compared to conventional models. Additionally, new technologies have been incorporated into the heating methods, internal transport systems, and body structure, cutting the installation space by about 20%. 【Features】 ■ Approximately 40% reduction in energy costs ■ Approximately 30% reduction in CO2 emissions per unit weight ■ Approximately 10% reduction in internal lead time ■ Space reduction rate of about 20% ■ Hybridization of the tray pressure method and roller hearth method *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Industrial Furnace

The "Ultra Energy-Efficient Continuous Quenching Furnace (U-TGRT)" achieves approximately a 70% reduction in both energy consumption and CO2 emissions compared to our old batch furnace. It contributes to reducing the burden on the global environment. 【Features】 ■ Approximately 70% reduction in energy costs ■ Approximately 70% reduction in CO2 emissions ■ Approximately 30% reduction in lead time within the furnace ■ Approximately 40% reduction in installation area *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Industrial Furnace
• Incinerators and incinerators

The "roller hearth type continuous high-temperature carburizing quenching furnace" minimizes uniform rapid heating and temperature distribution by adopting a large-capacity regenerative gas burner and a high-volume stirring fan. As a result, it shortens the carburizing time and significantly reduces processing costs. The quality is equivalent to or better than conventional carburizing methods. 【Features】 ■ Shortens lead time and reduces processing costs ■ High-concentration carburizing is easy *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Industrial Furnace

The "Gas Heating Type Endothermic Gas Reforming Furnace" employs a regenerative gas burner, achieving improved environmental performance, reduced C2 emissions, and lower energy and maintenance costs with a footprint similar to that of electric heating systems. We also offer electric heating reforming furnaces with the same installation area as gas heating reforming furnaces. 【Features】 ■ Significantly reduces the production cost of reforming gas through the use of a swirling flow regenerative burner ■ Incorporates new mechanisms such as double-pass retort, pulsation-free blower, and special heating systems ■ Reduces CO2 emissions and greatly enhances environmental performance ■ Like conventional electric heating, it is sting-free and almost completely prevents soot generation inside the retort *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Industrial Furnace

The "Plasma Nitriding Furnace" is a plasma nitriding furnace with a built-in heater developed in-house. It has significantly superior features compared to conventional ion nitriding furnaces. It allows for zone control of temperature, resulting in a uniform temperature distribution. It enables large-scale uniform processing and mixed processing of various products. 【Features】 ■ Achieves uniform temperature distribution ■ Built-in heater type ■ Capable of large-scale uniform processing even in large equipment ■ Allows mixed processing of materials with different masses ■ No nitriding unevenness even with complex shapes, ensuring stable quality *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Industrial Furnace

Kunshan Tōwa is not just an equipment manufacturer, but a "comprehensive engineering manufacturer of heat treatment" that supports customers' heat treatment needs from all aspects, including equipment maintenance, after-sales service, contract processing services, and research and development. DOWA Thermotech Co., Ltd. actively develops its heat treatment processing business to extend the lifespan of metal materials and its industrial furnace business, leveraging the know-how accumulated in heat treatment processing. As a pioneer in heat treatment technology, it provides top-class services in both scale and quality. *For more details, please contact us or download the catalog.*

• Industrial Furnace
• Heating device

DOWA Thermotech's local subsidiary in Indonesia offers contract processing for heat treatment of transportation equipment components (four-wheeled and two-wheeled vehicles, construction and industrial machinery) in the Karawang area. 【DOWA's Heat Treatment Technology】 ● High reliability quality that meets international standards 　　~ Improved fatigue strength ◎, wear resistance ◎, low distortion ◎ ● Reliable service ● High production efficiency, capable of mass production ● Skilled staff (support system from Japan) ● Benefits in terms of cost and environment ● Collaboration with equipment manufacturing and sales business (local production and sales of heat treatment furnaces) ● Consulting services for general heat treatment and surface treatment

• Processing Contract

DOWA Thermotech's local subsidiary in China offers contract processing for heat treatment of components for transportation equipment (four-wheeled and two-wheeled vehicles, construction and industrial machinery) in Kunshan, Jiangsu Province, China. DOWA Thermotech, a leading heat treatment company in Japan, established a local subsidiary in Kunshan, Jiangsu Province, adjacent to Shanghai, to support stable production of transportation equipment in China, and began full-scale operations last autumn. 【DOWA's Heat Treatment Technology】 ● Highly reliable quality that meets international standards 　　~ Improved fatigue strength ◎, wear resistance ◎, low distortion ◎ ● Reliable service ● High production efficiency, capable of mass production ● Skilled staff (support system from Japan) ● Benefits in terms of cost and environment ● Collaboration with equipment manufacturing and sales business (local production and sales of heat treatment furnaces) ● Consulting services for heat treatment and surface treatment in general

• Transmission parts
• Engine parts
• gear

The "Vacuum Sintering Furnace - High-Temperature Vacuum and Pressure Sintering Furnace" is a high-temperature vacuum sintering furnace suitable for the sintering of cemented carbide, rare earth magnets, and fine ceramics. Utilizing reduced pressure flow gas, it enables fully automated processing from debinding to pre-sintering, main sintering, and cooling in one batch. It is a vacuum furnace that combines reliability, quality, cost-effectiveness, and productivity. The applicable materials include powder high-speed steel, high-alloy steel, cemented carbide, and fine ceramics, with effective dimensions of 300×300×600, 500×500×1000, and maximum temperatures of 1300°C, 1600°C, and 2200°C, with the heating element made of graphite. For more details, please contact us or refer to the catalog.

• Industrial Furnace

The vacuum sintering furnace (metal furnace) "FINEVAC" with a METAL HOTZONE eliminates carbon contamination by using a METAL HOTZONE. It can operate stably at high temperatures above 1800°C in a vacuum, hydrogen gas, or inert gas atmosphere. It is capable of sintering high-purity fine ceramics. The applicable materials are fine ceramics, with effective dimensions of 300×300×600, 500×500×1000, and maximum temperatures of 1300°C, 1600°C, and 2200°C, with heating elements made of molybdenum and tungsten. For more details, please contact us or refer to the catalog.

• Industrial Furnace

The "V-TKM Series" is a cell-type vacuum heat treatment equipment that allows for independent temperature and atmosphere control in each chamber. It features a carbonless structure that enables burnout, and it employs gas hardening, eliminating the need for post-cleaning. Additionally, its external transport method makes it easy to respond to issues. It achieves improved quality characteristics through small lot production and reduces logistics costs through in-shop processing. 【Features】 ■ Capable of vacuum carburizing, vacuum sintering, and brazing ■ Improved quality characteristics through small lot production (reduced variability) ■ Reduced logistics costs through in-shop processing (reduced work-in-progress inventory) ■ Increased equipment utilization rate in response to demand and production fluctuations ■ High space productivity ■ Equipment that does not rely on human skill *For more details, please refer to the PDF document or feel free to contact us.

• Industrial Furnace

By coating with "Chrome Doppe-N," the 'corrosion resistance,' 'wear resistance,' and 'release properties' are dramatically improved, significantly extending the lifespan of mechanical parts and molds. ★ Due to low-temperature processing, there is almost no dimensional change for precision molds and parts. ★ It is a pollution-free treatment with no generation of harmful substances. 【Application Examples】 - Transmission parts - Press molds - Ferrite forming punches - Resin molding molds - Powder molding molds - Glass molds - Injection molding machine parts - Various semiconductor manufacturing equipment parts

• Other surface treatment equipment

We have commercialized "Sem Ion Plating," which significantly improves upon conventional ion plating technology, and we offer contract processing services. Please take advantage of Sem's cutting-edge technology that achieves "high quality," "long lifespan," and "low cost." 【Features of Sem Ion Plating】 - Significantly upgraded from conventional ion plating coatings. - Fewer droplets, with excellent adhesion, durability, and smoothness. - Creates a robust coating through composite processing with the formation of an intermediate layer. - Fewer droplets that lead to a decline in coating quality. Achieves cost reduction through a significant increase in processing capacity. *If you provide samples, we will conduct test coatings. For more details, please contact us or refer to our catalog.

• Other surface treatment equipment

This is a surface hardening method that generates glow discharge in a dilute mixed gas atmosphere of nitrogen and hydrogen at several hundred pascals, simultaneously heating the workpiece and promoting nitriding due to ion impacts. Plasma nitriding is a processing method that is completely different from conventional nitriding methods, and it is currently being widely used for various mechanical parts, precision components, injection molding machine parts, and various molds, including automotive parts. In particular, our equipment features a built-in heater that allows for separate control of nitriding temperature and discharge conditions, making it a groundbreaking system that ensures uniform and excellent quality even in large capacity processing and large part treatment. - Features of Plasma Nitriding - (1) Nitriding can be performed only on the necessary parts (ensuring reliable anti-nitriding) (2) Minimal thermal distortion (3) A tough compound layer is obtained (4) It is the cleanest manufacturing method.

• Other surface treatment equipment

DOWA Thermotech Co., Ltd. is actively expanding its business in heat treatment processing to use metal materials for a longer time and in industrial furnace operations that leverage the know-how accumulated in heat treatment processing. As a pioneer in heat treatment technology, we provide top-class services in both scale and quality. With a focus on "preventive maintenance" rather than "emergency repairs," we act as the guardian of our customers' production lines. During maintenance periods, we can offer contract processing services using equivalent equipment in our own factory. *For more details, please contact us or download the catalog.*

• Industrial Furnace
• Heating device

DOWA Thermotech Co., Ltd. aims to help our customers understand our technology and support their success. We have recently started offering training services at our factory in Thailand. [Target Participants and Objectives for Each Course] ○ Maintenance All Course (2 days) Target Participants: Operators / All Maintenance Personnel (Training Objectives) - Understand the structure of the furnace and acquire skills for replacing consumable parts. - Acquire skills for creating maintenance plans considering the replacement cycle of maintenance parts. ○ Operation Course (3 days) Target Participants: Operators (Training Objectives) - Acquire skills for safe operation. - Acquire skills to maintain quality. ○ Introduction to Heat Treatment (3 days) Target Participants: Engineers (Training Objectives) - Learn the basics of heat treatment and acquire skills for setting carburizing conditions. - Acquire inspection skills for heat-treated parts. - Acquire skills to solve simple heat treatment troubles.

• Industrial Furnace
• Heating device

We have established an open lab that allows customers to utilize DOWA Thermotech Co., Ltd.'s heat treatment equipment and analytical evaluation devices, and we are advancing research and development together with our customers. With a motto of market-in and product-in for product development, we pursue the evolution and integration of technology from both hard and soft aspects of heat treatment, fulfilling our mission as a comprehensive heat treatment manufacturer. *For more details, please contact us or download the catalog.

• Industrial Furnace
• Heating device

We have developed a plasma nitriding technology called "DC Coat R," which combines traditional PVD treatment. This new technology can shorten processing time compared to other nitriding treatments. Additionally, it significantly improves longevity, stress limits, and fatigue resistance. Moreover, during processing, it is an environmentally friendly surface modification process with no direct carbon dioxide emissions. ■Features ◎Reduction of oxidative wear with Cr-based films (high-temperature oxidation resistance) ◎Low friction coefficient achieved through finishing processes before and after treatment ◎Improved adhesion of CrN films through controlled plasma nitriding treatment ◎Increased compressive strength of the substrate due to controlled plasma nitriding treatment, enhancing resistance to high surface pressure strength ■Specific Product Examples ◎Cold forging dies ◎Press dies (high-tensile steel plates, general SUS materials, drawing dies, etc.) 【Effects】 Fatigue strength, adhesion, wear resistance, heat resistance 【Applicable Steel Types】 Applicable to all iron-based metals *For more details, please request documentation or view the PDF data available for download.

• Processing Contract