Shigiya Grinding Machines

Shigiya grinders serve aerospace and defense, automotive, medical device manufacturing, general industrial, toolroom and mold/die, and energy sectors. Their micron-level accuracy, rigid construction, and automation compatibility make them well-suited for any precision manufacturing environment where tight dimensional tolerances and consistent surface finishes are critical.

Yes. Most Shigiya CNC models — including the GPL, GPC, GPH, and GP series — feature open CNC architectures designed for seamless integration with robotic loaders, part conveyors, and in-line inspection systems. This enables lights-out and high-volume automated manufacturing environments with minimal operator intervention.

Shigiya CNC grinders (e.g., GPL-30B, GP-45D) feature servo-driven axes, programmable multi-step cycles, and automation integration for high-precision, high-volume production. Hydraulic models (e.g., G-30B, G-40B, G-45D) use manual hydraulic table drives, offering a shorter learning curve, tactile operator control, and cost-effective precision for toolroom, job shop, and lower-volume applications.

Shigiya grinders cover an exceptionally wide range: compact models like the GPC-20 handle components with 100 mm between centers and 20 kg capacity, while heavy-duty machines like the GP-65D and GP-85D accommodate workpieces up to 3,000 kg and 6,000 mm (approximately 236 inches) between centers — making the lineup suitable from small precision pins to large industrial shafts and rolls.

Yes. Select Shigiya models, including the GDP-20-43, are explicitly designed for CBN (Cubic Boron Nitride) wheel compatibility. CBN wheels enable faster material removal, extended wheel life, and reduced heat generation, making them ideal for high-production grinding of hardened steels and difficult-to-machine alloys where conventional abrasive wheels would wear prematurely.

All Shigiya grinding machines are priced on request due to the variety of configurations, center distance options, and application-specific requirements. You can submit a product inquiry through the A.W. Miller website contact form or call any of the technical center locations. An application engineer will follow up to discuss your specifications, production requirements, and provide a tailored quote.