OUR BUSINESS

We produce thermal technology to create a better future--: Tounetsu is a manufacturer doing research and development of aluminum casting furnace, heat treat furnace and vacuum furnace etc.
We handle a wide range of products from the metal and machinery industries to energy and agriculture.

FEATURES: We are developing, designing, and manufacturing the equipment from melting to supplying such as Melting Furnaces, Submerged Melting Furnaces, Melting and Holding Furnaces, Molten AL Distribution Systems, Holding Furnaces and propose total solutions. Our products are highly evaluated such as horizontal immersion type holding furnace” ALUNDER”, Two chamber furnace that greatly advances productivity and low defect rate in low pressure die casting, and ALST three chamber furnace which improved molten metal quality based on the two-chamber furnace.
Recently, Submerged Melting Furnaces have been well received for decarbonization and high metal quality.
BUSINESS PROCESS

FEATURES: We are developing, designing, and manufacturing various types of atmosphere furnaces and industrial furnaces.
Industrial furnaces, which perform variety of heat treatments on steel and aluminum products, are the basis of metal and machinery industries. So, there are various customers with the various kinds of requirements. Most of our products are custom-made to meet each request. If you have any questions about heat treatment, please feel free to contact us.
BUSINESS PROCESS

FEATURES: We are developing, designing, and manufacturing vacuum furnaces and vacuum equipment.
Vacuum furnaces, which enable heat treatment and surface treatment in a vacuum atmosphere, are equipment of great relevance to the aerospace and aircraft industries and the medical equipment industry, where higher precision metal heat treatment is required.
Our vacuum furnace products, such as the vertical vacuum and pressure sintering furnace (CAVAC), which enables continuous processing (dewaxing, and sintering) of cemented carbides, various metal, fine ceramics, etc., with less energy consumption, have been well received by customers in various industries.
BUSINESS PROCESS

FEATURES: We are engaged in the development of agriculture-related equipment, research into agricultural production methods and food processing methods, and the production and sale of agricultural products.
Food is a basic element of life, and agriculture supports food. In modern culture, the technology to control temperature and create an appropriate environment for crops is very important.
We will proactively address to this issue.
BUSINESS PROCESS

PATENTS

2 chamber holding furnace for low-pressure die casting(Patent No.4519806,Patent No.5989266)
Immersion type heater(Patent No.5371784)
Molten metal distribution method of casting holding furnace(Patent No.5237752)
1 chamber type of vacuum furnace(Patent No.5265475)
Holding furnace(Patent No.6644776, Patent No.6842215, Patent No.7577368)
Heater protection tube for holding furnace(Patent No.6539343, Patent No.6836283)
Under burner and under burner furnace(Patent No.6623325)
Melting and holding furnace(YUKAI)(Patent No.6638158)
Metal melting device(Patent No.6855084, Patent No.6861442)
Screen plate for metal melting and metal melting method(Patent No.6829491)
Metal melting furnace(Patent No.6918377, Patent No.7084061, Patent No.7312499)
Molten metal mixing system(Patent No.7011862)
Molten metal holding furnace for low-pressure casting(Patent No.7333625)
Immersion type heating heater(Patent No.7250388)

Holding furnace for molten metal dosing(KR No.101132930)
Immersion type heater(US No.8422871, CN No.200980103393.6)
2 chamber holding furnace for low-pressure die casting(US No.9636743, CN No.201480043088.3, MX No.374279, KR No.101813684, TH No.79596, ID No.000067968, VN No.29044)
Holding furnace(US No.10462851, CN No.201580076022.9, MX No.370940, DE No.112015006539B4)
Heater protection tube for holding furnace(US No.10356850, CN No.201580078234.0, MX No.397380, IN No.112015006538B4)
Under burner and under burner furnace(cN No.202080061068.4)
Melting and holding furnace(YUKAI)(US No.11415368, CN PP No.201920163424.8, TH No.99381, ID No.000089255)
Metal melting device, Screen plate for metal melting and metal melting method(CN No.202080061068.4)
Metal melting furnace(US No.11850658, CN PP No.202121124178.9, CN PP No.202223204414.5, DE No.602020004726.3, UK No.3904806, CZ No.3904806, PL No.3904806)

Under burner and under burner furnace(TH pub.1901001597A)
Melting and holding furnace(YUKAI)(EU pub.3868490A1)
Metal melting device, Screen plate for metal melting and metal melting method(US pub.2022/0307768A1, CN pub.116900291A, CN pub.116900292A, EU pub.4006471A1)
Metal melting furnace(US pub.2024/0019212A1, CN pub.114599927A, CN pub.115121784A, CN pub.117928223A, MX pub.2022007358A, MX pub.2023007475A, ID pub.202317035798, PCTpubm2024/089904)
Molten metal mixing system(US pub.2023/0272504A1)