三正工業 Company Profile

"Although invisible, they are essential; small yet powerful," we continue to produce hydraulic and pneumatic equipment, the unsung heroes of the industrial world.

Sansei Kogyo Co., Ltd. has been manufacturing hydraulic and pneumatic equipment for over 50 years since its establishment in 1958. Many companies in the "monozukuri" (manufacturing) field have a craftsman spirit, which means that while they possess technical skills, they often lack in proposals and management. On the other hand, many customers are seeking "manufacturing + α." At Sansei Kogyo, we provide comprehensive support from order receipt to manufacturing, delivery, and aftercare by dividing our operations into manufacturing and management departments. Sansei Kogyo marks the highest quality not only in products but also in services. To meet the wide-ranging and high-level demands from our business partners, Sansei Kogyo collaborates with 100 manufacturing partner companies across Japan. We have formed partnerships with many excellent companies in various manufacturing and processing fields, allowing us to mobilize our wisdom and experience to address even the most complex and challenging requests. We are continuously working to overcome challenges such as "unable to produce" or "not able to meet deadlines." Additionally, we are focusing on young new companies with excellent technology across Japan, establishing partnership contracts to ensure we can respond broadly and effectively, regardless of the area.