Consolidate processes of turning, welding, and grinding. Shorten lead time for multi-process parts.

Equipped with lathes, 5-axis machining, welding, and surface grinding in-house. Eliminating movement loss between processes, we deliver complex large composite parts (φ1,600) in a short lead time.

"Lathe work is done by Company A, welding by Company B, and finishing grinding by Company C..." Are you struggling to manage multiple subcontractors for a single part, dealing with the transportation costs and delays that arise each time? For large parts that require a variety of processes, Iwai Koki's "process-integrated production" demonstrates its power. We complete everything from large lathe machining to high-strength welding and final surface grinding in our own factory. This completely eliminates "waiting time" and "transportation risks" between processes, achieving an overwhelming reduction in total lead time. In particular, precise machining that considers thermal distortion after welding is an area that requires years of experience. With us, our manufacturing and welding departments work closely together to finish with the optimal processing sequence, making it possible to handle large brackets and motor bases with strict geometric tolerances. Additionally, we own our own transportation (1t to 4t vehicles), allowing us to safely and reliably deliver to nearby areas in Chiba, Ibaraki, Kanagawa, and Tokyo immediately after processing is completed. By consolidating your points of contact with us, your manufacturing managers and purchasing personnel will be freed from the complexities of progress management. We will smoothly complete "large and cumbersome jobs that require multiple processes" with our equipment capabilities and teamwork.

Processing Contract