{"id":"grob-g320","model_id":"G320","name":"GROB G320","summary":"The GROB G320 is a two-spindle machining center in the GROB G-series. Two parallel motorized spindles machine two parts simultaneously, and an optional pallet changer lets dissimilar part types be machined in parallel without change-over times. It is intended for manufacturing lines in the automotive sector.","study_notes":["Max. speeds are 95/60/120 m/min in X/Y/Z; positioning accuracy is 0.006 mm in X/Y/Z.","Chip-to-chip time t1 is 2.0 s according to VDI 2852, relative to spindle speed.","Distance between spindles is 700 mm; interference diameter is 2 x 698 mm.","Total weight is 20,000 kg without pallet changer and 27,000 kg with pallet changer.","Table load is 2 x 350 kg without pallet and 2 x 275 kg with pallet on A-/B-axis.","Motorized spindle options: HSK-A63 at 47 Nm / 12,000 rpm or 18,000 rpm; HSK-A63 at 83 Nm / 12,000 rpm or 86 Nm / 17,000 rpm; HSK-A100 at 185.5 Nm / 12,000 rpm, 340 Nm / 6,000 rpm, 344 Nm / 6,000 rpm, or 340 Nm / 10,000 rpm.","Typical machining example for a control arm in aluminium alloy uses a motorized spindle at 18,000 rpm with 29 kW / 34.6 Nm.","Tool magazine options: single-disk, double-disk and triple-disk magazines.","Control options: SIEMENS as standard or FANUC as option; no specific controller model is named.","GROB Spindle Diagnostics (GSD) monitors motorized spindle condition; GROB Chip-in-Spindle Detection System (SiS) detects chip-related clamping faults from 10 μm between the plain surface and spindle nose.","Top loading options include agile loading gantry, Cartesian linear gantry and Cartesian linear gantry with telescope; front loading options include automatic sliding changer and swiveling changer.","The G-series uses motion axes divided into tool side and part side to improve dynamics and rigidity."],"safety_notes":[],"sources":[{"url":"https://www.grobgroup.com/en/products/product-range/machining-technology/g-modules/g320/","title":"Machining center G320","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":6,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"cnc_mill","manufacturer":"grob","controllers":[],"travel_x_mm":650,"travel_y_mm":850,"travel_z_mm":870,"rapid_traverse_m_min":120,"spindles":2,"joints":[],"protocols":[],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/grob-g320","license":"https://creativecommons.org/licenses/by/4.0/"}