協立製作所 Company Profile

We contribute to society through the manufacturing of hydraulic equipment parts.

Since our establishment in 1954, we have developed a system capable of integrated processing of parts, transitioning from a specialization in grinding. Currently, we have established a comprehensive production line that includes cutting, hardening, grinding, assembly, and testing using NC machine tools. As a specialized manufacturer of hydraulic equipment, we deliver OEM products (private label) such as hydraulic piston pumps and valves, as well as precision components for hydraulic equipment to our customers.