GROB G1050

The GROB G1050 is GROB's largest 5-axis universal machining center, a heavy-duty machine designed for the most demanding large-part aerospace, defense, and energy applications where no standard 5-axis machine provides sufficient work envelope. With X/Y/Z axis travels of 1,500 x 1,600 x 1,250 mm and a maximum workpiece weight of 2,500 kg, the G1050 operates at a scale that competes with portal-style gantry machines while maintaining the full 5-axis simultaneous contouring capability associated with GROB's universal machining center line. It is among the largest 5-axis horizontal-spindle machining centers available from any manufacturer.

The horizontal spindle principle that defines GROB's architecture becomes even more critical at the G1050's scale. Large structural aerospace parts machined on this machine — fuselage frames, wing-to-body fittings, main landing gear links, engine mounts — generate enormous quantities of chips during roughing. Titanium alloy chips from a 1,200 kg structural part can easily total 300-400 kg of material removal, and chip management during that process determines whether the cutting zone stays cool, clean, and geometrically stable. GROB's horizontal spindle orientation puts gravity to work, continuously clearing chips from deep pockets and complex internal geometries without relying solely on coolant pressure. The result is more consistent tool life, better hole quality, and fewer scrapped parts on parts that cost tens of thousands of dollars each.

The G1050's HSK-A100 spindle reaches 10,000 rpm as standard, with a 15,000 rpm option available for aluminum structural work. Spindle power is 80 kW (107 hp) continuous, and peak torque exceeds 900 Nm — specifications that reflect the machine's primary mission of heavy roughing in titanium, Inconel, and high-strength steel. The A-axis swivels through its full range while the B-axis provides full 360° continuous rotation, maintaining true 5-axis simultaneous capability despite the enormous work envelope. The 1,000 x 1,000 mm pallet interface is the largest in GROB's standard line, and the pallet system integrates with GROB's automated storage solutions.

Structurally, the G1050 uses GROB's thermally symmetric cast iron construction scaled to accommodate the machine's weight — approximately 60,000 kg fully equipped. Foundation requirements are substantial, with most installations requiring a purpose-engineered reinforced concrete foundation to distribute the machine's weight and isolate it from building vibration. Active thermal compensation through the Siemens Sinumerik 840D sl control continuously corrects for thermal drift measured by distributed temperature sensors. The standard tool magazine holds 120 tools in HSK-A100 format, expandable to 200 positions to support the diverse tooling inventory needed for complex large-part programs that may use 60 or more distinct tools in a single operation.

Pricing for the G1050 typically falls between $1,500,000 and $2,500,000 depending on spindle configuration, automation level, and installation requirements including foundation engineering. At this investment level, customers are almost exclusively Tier 1 aerospace manufacturers, prime defense contractors, and large energy OEMs. The G1050 competes in a thin market segment where Starrag, Forest-Liné, and MAG's large gantry machines are sometimes alternatives, but those are portal-style machines with different kinematic limitations. The G1050's universal 5-axis capability in this work envelope is a genuine differentiator for shops that need both the envelope and full 5-axis contouring.