Company Information

Who we are

HQ : Sanuki city, Kagawa (Workplace: Toshima-ku, Tokyo)
Established : 1948
Employees : 84 (71 males, 13 females)

■Company Highlights
Our company specializes in the manufacturing of weighing systems for various industries such as agriculture, construction, and industry. We take pride in being the nationwide leader in market share for automatic hopper scales for agricultural facilities and batcher scales for ready-mix concrete plants. Our range includes large-scale weighing machines and weighing systems with advanced features, including those for rice and weat in particular, contributing to automation and labor-saving across different industries. While we are recognized as a leading weighing machine manufacturer, we also meet the needs of customers in various plant designs. Adhering to our motto, “Delivering good products across Japan,” our commitment to innovative and high-quality product creation remains unchanged, walking hand in hand with the community.

■Message from President and CEO, Toshimasa Shirai
With the passage of time, from general weighing instruments to current large industrial scales and weighing systems utilizing electronics, and further into the plant sector, the SANKO brand has been making significant leaps both domestically and internationally. It can be said that our position today has been established through our commitment to research and development in mechatronics and electronics technology while tackling unique themes. Where there are dreams, technology is born, and new technology, in turn, nurtures new dreams. We will continue to transform dreams into technology while fully recognizing our social responsibility, making extraordinary efforts towards the healthy development of our business and contributing to society, which we believe is our mission.

■Product Line
Industrial scales, Construction scales, Agricultural scales, Specialized scales, Filling machines, System development, Software development, Various plants, Various industrial equipment, Hardware development, Graphic panels, Various automatic control panels, Operating panels

Our vision

Management Philosophy

Customer First Principle
We regard our customers’ joy as our own and commit to work with the same empathy as our customers. This principle of putting our customers first is the foundation of our endeavor to be recognized as a valuable corporation by customers worldwide. We are committed to consistently providing value to our customers.

・Employee Satisfaction
We cherish an environment where every employee can experience the joy of self-actualization through their work. Our company is composed solely of employees who have a vigorous spirit to boldly challenge the future and possess an independent mindset.

・Honesty and Courage
We humbly understand the essence in our customers’ voices and actively listen to that essence with an “honest heart”. We cultivate the “courage” to act proactively and capture the best value for our customers without being constrained by conventional wisdom, customs, or precedents.

We create outstanding valuable technologies and pursue innovation that surpasses them. Our company is always eager for new challenges and uncharted worlds.

Our services/products

List of Products and Services (English)

Job Description

Details of the job

■Electric design
You will work on the electrical side of systems controlling large machines, handling tasks from wiring to circuit board design. Your role involves designing and coding systems for various machinery types, including large industrial machines and precision equipment. You’ll also troubleshoot electrical issues and provide support for control-related maintenance and after-sales follow-up.


Mandatory skills

Preferred skills

Required skills details

We prioritize personality over skills and knowledge.

・Experience in electrical circuit design
・Interest and knowledge in software

・Experience in electrical design using PLC (Programmable Logic Controller)
・PLC experience using ladder logic
・PLC Software: SIMATIC (SIEMENS), Allen-Bradley (Rockwell Automation)


  • Those who actively communicates with others around them.
  • Those who do not hesitate to seek advice from others instead of trying to solve everything alone.
  • Those who can approach challenges with curiosity and interest.
  • Those who consistently strives for improvement.
  • Those who are conscious of the team and can sense the needs of those around them.
  • Those who has an interest in Japanese culture and genuinely likes Japan.
  • Those who has a clear and thoughtful reason for wanting to work in Japan.

Career path

1st year

You will learn about the job through training.

3rd year

Start working on design independently.

5th year

Go on business trips and make your field debut.

Workplace Environment

Our team/corporate culture

Technical Headquarters, Instrumentation Design Team
Our Instrumentation Design Team values independence and originality, viewing individual growth as our most important task. The head office has been converted from a warehouse into a workspace that prioritizes private space, and the Tokyo office also offers an environment conducive to concentration. Communication with sales and operations staff is always accessible, as conversation is considered an essential element for individual growth. Moreover, teleworking is encouraged, and we have arranged an environment that facilitates working from travel destinations or home.

Typical daily work schedule

Work hours are basically from 8:30 to 17:30.
1 hour within this period is designated as a break time.
How you spend the time outside of breaks is up to you, and you are responsible for planning and executing your work efficiently, excluding time spent in meetings with clients or internal company meetings.
If you complete your day’s work early, you are generally allowed to leave the company early.
If you’re unable to concentrate, you’re allowed to work from a nearby café, just be sure to maintain the security of any company-issued tools.

Post-employment and on-the-job training

Upon joining, you will undergo a two-month training and probation period. In the first month, you will receive training at the head office along with your peers, covering industry and product knowledge as well as essential professional skills. This includes learning about the company’s internal rules. The following month will be dedicated to on-the-job training (OJT) and practical training using actual sites and test environments. This will be an opportunity for you to fully engage, address any questions, and solve challenges.

Are there any senior non-Japanese nationals, or English-speaking employees?

Yes, within the company there is one employee from India. Additionally, under our diversity policy, we also have employees from China and the Philippines.

Message from our employees from abroad

I am EZHILARASAN, from India. It has been a year and a half since I joined M/s Sanko Kogyo. Currently, I am primarily responsible for mechanical design. Let’s collaborate on innovative projects together. I’m look forward to work with you!

Why you should work at our company

Benefits highlights

Our company offers a supportive environment even for foreign nationals not yet accustomed to living in Japan. We have a housing allowance system that covers 50% of rented accommodation costs, reducing personal expenses. We also boast over 120 days of leave annually, plus a flexible holiday system that allows for 5 days of leave at your discretion. Additionally, every quarter, teams have the opportunity for interaction and recreation, with each individual receiving a 2,000 yen subsidy for these activities. This encourages communication and helps new employees acclimate to the company culture quickly.

Housing support

Rented company housing
50% rent subsidy (up to 45,000 JPY) for 10 years after joining the company

Leisure facilities at work & activities outside of work

As part of our health management initiatives and commitment to Sustainable Development Goals (SDGs), we offer various internal recreational activities and events. These include local cleanup activities near the office, health promotion events, and regular health checkups. Additionally, we offer free influenza and COVID-19 vaccinations. We prioritize our employees’ health and encourage active participation in the diverse events we organize.

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