GF Mikron MILL P 800 U

The GF Mikron MILL P 800 U is the flagship of GF Machining Solutions' 5-axis milling range, combining the largest work envelope in the P U series with the performance-class thermal stability and precision that define the P line. At 800 x 800 x 550 mm (31.5 x 31.5 x 21.7 in) of X/Y/Z travel, this machine handles substantially larger 5-axis components than any other Mikron 5-axis platform — large mold cavities, aerospace structural parts, and complex production components that demand both generous travel and ±4 µm accuracy.

The spindle delivers 20,000 RPM through an HSK-A63 interface with 36 kW of power and 120 Nm of torque. That's enough to rough titanium aggressively and then finish to precision specs in the same setup. The polymer granite base provides the vibration damping that keeps heavy 5-axis cutting stable, and the active thermal management system compensates for the heat generated during extended roughing and finishing cycles.

The trunnion table comes in multiple configurations: a standard version with T-slot tables (Ø 630/500 mm), Delphin pallet systems, and System 3R options. Table load capacity reaches 500 to 1,000 kg depending on configuration, with the standard trunnion handling 500 kg and the S version supporting up to 1,000 kg. Rapid traverse hits 45 m/min (1,772 ipm) standard with a 61 m/min (2,402 ipm) dynamic option.

The Heidenhain TNC 7 control delivers the 5-axis processing power these large programs demand, and the tool magazine scales from 30 to 215 pockets with the tool tower system. An ST (Super Trunnion) variant is available with 50 RPM swivel speed for high-volume production applications where rotary axis speed impacts cycle time.

New MILL P 800 U machines price between $450,000 and $650,000. The P 800 U competes with the Hermle C 400, DMG Mori DMU 80P, and Mazak Variaxis i-700 in the large precision 5-axis machining segment.