Mitsubishi Electric GX-F

Brilliant Cut is Mitsubishi Electric's dynamic beam shaping system, which adjusts the spatial energy distribution of the laser beam at the cutting front in real time. In a fixed-beam-profile fiber laser, the same Gaussian or flat-top beam profile is used regardless of material thickness — which is a compromise that favors either thin or thick cutting. Brilliant Cut modifies the beam's intensity distribution as material thickness changes: for thin sheet, a concentrated Gaussian profile maximizes cutting speed; for thick plate, a shaped profile with more energy at the beam periphery maintains cut quality by directing heat more effectively at the thicker material's kerf walls. The result is consistent edge quality across a wider thickness range without separate cutting programs.

Large plate — especially thin plate in long format — can distort as heat from the cutting process causes differential thermal expansion. The GX-F's support table uses a slat design with adjustable anti-deflection support to minimize plate bow during cutting. For thin plate (1-4 mm) in long format, the AI Assist Gas system's power modulation reduces total heat input. For heavy plate, thermal distortion is less critical because the material's mass prevents movement during the cut. Mitsubishi Electric's applications team can advise on fixturing and cutting sequence strategies for particularly distortion-sensitive plate types.

At 20 mm mild steel with nitrogen assist (oxygen-free cutting), the GX-F produces edges in the ISO 9013 roughness grade Rz 50-100 um range — adequate for most structural fabrication welding. With oxygen assist at 25-40 mm, slag attachment increases and edges typically require secondary treatment before welding. For higher edge quality at 20-40 mm, nitrogen assist at higher pressure with optimized speed is preferred but significantly increases assist gas consumption and cost. Applications requiring cosmetic or precision edge quality above 20 mm in stainless or 30 mm in mild steel should be validated on the GX-F with production-representative samples before committing to a specification.

The GX-F supports automation appropriate to its larger scale: extended sheet loading towers handling 5-15 plate capacity, pallet shuttle systems for continuous operation on standard sheet sizes, and overhead crane-interface loading for very large or heavy plates that exceed tower capacity. The automation systems are configurable for the specific plate size range and production shift pattern. Large-plate automation for the GX-F is more complex and costly than eX-F automation — budget appropriately when specifying. For fabricators with crane access and adequate floor space, crane loading with pallet shuttle for unloading is often the most practical automation approach at this scale.

Lead time for a new GX-F is typically 8-16 months from order, depending on configuration, power level, and Mitsubishi Electric's production schedule. Installation takes 2-4 weeks for the machine itself; facility preparation (floor leveling, electrical, gas lines, crane pad if needed) should be planned as a parallel workstream starting well before machine delivery. The total project timeline from order to production-ready machine is typically 12-20 months when facility preparation and operator training are included. Engage Mitsubishi Electric's installation team early in the process to align the facility preparation schedule with machine delivery.