Our Heater and Welding Machine

Introduce 5 of our Heater and Welding Machine brands to you.

1. Chuo Seisakusho

Chuo Seisakusho, listed on the second section of the Nagoya Stock Exchange, manufactures power supplies, surface finishing equipment, electric resistance welding machines, electro-chemical deburring machines, and environmental equipment that are required in various industries.

The company develops, designs, and manufactures original and creative products to meet customer needs.

Chuo Seisakusho has been manufacturing power supplies and exploring the power electronics area for 70 years. Chuo Seisakusho was established in 1936 to produce Bertolo rectifiers (transformer-rectifier assembly). A number of rectifiers have been applied to plating, and we are accordingly manufacturing plating equipment to meet customer needs. Related electric welding machines have been also developed. Our mechanical technologies, developed through experience to meet customer needs, have become our core strength. Chuo Seisakusho has been advancing research and development of chemical products in order to get a step ahead in the electrolytic plating field. Seventy-five percent of our products are customer-made. Chuo Seisakusho provides customers with solutions by flexibly combining our traditional power electronics technologies, mechanical technologies, and chemical technologies.


2. Spotron

Specialized in design, development, production and sales of barcode reader, welding camera for arc welding and measuring equipments (Force gauge, Current meter, Condition monitor, etc.) for spot welding.


3. Avio

Incorporated as merged company of NEC Corporation and Hughes Aircraft Company under the trade name of Nippon Aviotronics Co., Ltd. 2018 Changed the trade name of NEC San-ei Instruments, Ltd. to NEC Avio Infrared Technologies Co., Ltd. and infrared business of Nippon Avionics Co., Ltd. was transferred to NEC Avio Infrared Technologies Co., Ltd.

Development, design and sales of data processing systems, Manufacture and sales of electric equipment such as data processing equipment, aviation equipment, communication equipment, image processing equipment, manufacturing equipment, medical equipment, electric measuring equipment, etc., Manufacture and sales of electronic devices and hybrids IC’s etc., Production and sales of software related to data processing systems and electronic computers. Design, superintendence and contract of electric power, implementation and electric telecommunication implementation. Manufacture and sales of various equipment and parts related to and/or associated with those referred to in the preceding paragraphs.


4. Yajima giken

Yajima Giken, Inc. was split off from Yajima Kogyo, Inc in September 1986. Since then, we have been satisfying the needs of our customers as a specialist in the field of automatic labor saving equipment. Thanks to the support by our customers, our customers have favored “Yajima method nut feeders” for thirty years from its launch from customers in Japan and all over the world. We would like to express our deep gratitude to our customers, who have always supported and given advice to us.

We, Yajima Giken, Inc. have the head office in Nagoya and have a base for the western Japan in Okayama. Thus, we are expanding our business all over Japan in the fields of various made-to-order assemblies or welding related automatic or labor saving equipment as well as products according to our specification such as nut feeder.

We are paying more and more attention to overseas customers too. We can provide seamless services from consulting until proposal, quotation, production, shipping, installation, adjustment and maintenance.

From now on, we would like to call upon a great amount of expertise to the development of new products or technologies in automatic supply equipment for small parts. At the same time, we will try to expand our automatic or labor saving equipment business in quality and quantity and expand overseas business in order to a flexible engineering company which can contribute to customers.
Each of our staff will try to provide services to our customers both in hardware and software. Therefore, we hope we get more and more encouragement from our customers.


5. Edogawa metals

Our company has been in existence for about 70 years and has established its reputation as the manufacture specialized in producing the precipitation hardening type conductor alloys, as the result of putting our energies into various developments and improvements of the products with both of better conductivity as well as durability.

Our company has made every effort in giving effect to our customers’ request for the shape reduction in prices of conductor materials with high quality and succeeded in providing with new products and new materials.

Our company is the only manufacturer specialized of the special copper alloys for conductor material, which has the through from melting to finishing. We are with the thought of trying hard in improvements in the level of our technical know-how in order to meet our customers’ requirements.


The Best Welding Machine in Asia

There are lots of Welding Machine brands in asia. For instance, Amanda Miyachi and Avio in Japan,UW Laser in China, and Ideal Link in Taiwan.

Amada Miyachi

Amada Miyachi is a leading manufacturer of equipment and systems for resistance welding, laser welding, laser marking, laser cutting, laser micromachining, and hot bar bonding. The company provides products to a wide range of markets, including the medical device, battery, electric vehicle and solar industries, as well as the global electronics, automotive and general industrial markets.


Avio is a comprehensive manufacturer of electronic equipment and other civilian equipment, as well as medical, office equipment, manufacturing equipment, defense systems, and avionics. Special electronic technology and system technology integrate sensing, machinery, optoelectronics, communication and other technologies to provide users with high-density semiconductors, high-performance and systematic products and machines. The company provides Precision welding equipment,packaging machines, and Thermal imaging camera.

UW Laser

UW Laser is a national high-tech enterprise specializing in R&D, production and sales of precision laser welding machines and complete sets of laser welding equipment. At present, Lianying Laser has subsidiaries such as Jiangsu Lianying, Huizhou Lianying Technology, and Japan UWJAPAN. Products include lasers and laser welding machines, workbenches and complete sets of laser welding automation equipment.

Ideal Link

Ideal Link provides customers with the most specialized welding technology, the company regularly grants business personnel the latest industry information and technology, and hires professional consultants from Japan to bring first-hand professional information and explanations of related processes on the operation to provide customers instant, specialized and correct professional consultation. The main products include laser welding machine, laser engraving machine and resistance welding machine。

Joining quality of stranded wire is desired to be improved

Challenge: Welding quality of stranded wires is desired to be improved, and loosening of wires is desired to be eliminated.

Basic Configuration of Pulse Heat Unit (Hot Bar Bonder) and Role of Each Part

The object to be joined is held down and the electric current is flown while the pressure is being applied, and heat is generated by resistance heating.

What’s Laser Brazing

Using the filler metal with a lower melting point than the base metal, heating the filler metal to a melting point higher than filler metal but lower than the melting temperature of the base metal. Then the liquid filler metal fills the gaps.

Fundamentals of Laser Scanner Welding

Laser scanner welding combines the advantages of the remote welding, the scanner and the robot, with professional graphics processing software, which can achieve 3D instantaneous multi-track welding.

Quality control for Spot Welding

Spot Welding is a fusion welding process with heat generation at the joint by the resistance of the work to the flow of electricity. Force is applied before, during, and after the application of current and melting occurs at the faying surfaces during welding.

Basic Configuration of Resistance Welder and Role of Each Part

Resistance welder sandwiches an object to be welded by the welding electrodes, andapplies electric current while applying pressure.

Fundamentals of Laser Welding

Laser welding is a high-precision laser welding method with laser beam of high energy density as a heat source. It has the advantages of high welding speed, high strength, narrow weld, small heat affected zone, small workpiece deformation, etc.