We have established a quality management system based on ISO 9001. We have also established a system to reflect customer feedback and that enables us to conduct continuous improvement activities. We are confident that we can provide products and services with quality that will fully satisfy our customers.
Quality system and plant certifications
ISO 9001 (Quality Management System) certification (pressure vessels, general welded structures, environmental products, and industrial machinery products such as forging presses and manipulators, cold forming presses and ring rolling mills) certification
JIS Q 9100 (Quality Management System) certification (machining)
Acquired ASME S, U, U2, U3 stamps ※ASME= American Society of Mechanical Engineers
Approval as a factory for manufacturing boilers and Class I pressure vessels (ClassNK)
Maintenance of certification by various classification societies (NK, AB, LR, BV, NV) for welding procedures
Maintenance of welding procedure legal conformance under the Electricity Business Act
Specific Construction Business License in Japan Governor of Nagasaki Prefecture License (Special-3) No. 5759 Types: civil engineering works, electrical engineering works, piping works, steel structure construction, machinery and equipment installation, and water supply facility construction
Measurement Certification Business (vibration acceleration level)
Ring rolling mill in-house testing machine
We have installed a ring rolling mill manufactured by our company in our plant as a ring rolling test machine. This allows us to conduct not only research on ring rolling mill development, but also trial rolling at your request using this facility. A handling manipulator made by our company is also located next to the ring production line, which allows visitors to visualize an actual ring production line.
Product weight
Max 500kg
Product height
Max 400mm
Product outer diameter
Min 350mm ～ Max 1000mm
Material outer diameter
Min 300mm
Material inner diameter
Min 110mm
Material height
Max 410mm
Rolling force
Horizontal
Max 120kN
Vertical
Max 80kN
Pressure testing room
We have pumps capable of generating the 1,000 MPa required for autofrettage and pressure testing of high-pressure equipment, as well as engineers who specialize in super-high pressure, to comply with various grade standards such as the High Pressure Gas Safety Act and ASME. We are also a certified holder of ASME S, U, and U2. In 2021 we also got ourselves certified for U3.
Inspection, analysis, and quality control
We have a Quantovac analyzer and various inspection equipment, and have established an inspection system that satisfies the quality requirements of our customers.
Quantovac analyzers can quickly perform qualitative and quantitative analysis of solid metals without complex pretreatment. They are used in all aspects of steel, casting, and nonferrous metal analysis, from research and development to manufacturing sites, quality control, and assurance.
