{"id":"grob-g720","model_id":"G720","name":"GROB G720","summary":"The GROB G720 is a modular two-spindle machining center for large-scale production. It can machine two components simultaneously and is assembled from modules to suit specific requirements. Working travels are 690/920/1,160 mm in X/Y/Z, total weight is 30,000 kg, and table load is up to 2,000 kg.","study_notes":["Max. speeds in X/Y/Z axes are 50/38/60 m/min.","Chip-to-chip time t1 is 6.0 s according to VDI 2852, relative to spindle speed.","Positioning accuracy in X/Y/Z axes is 0.006 mm.","Distance between spindles is 450–520 mm, with special solutions possible.","Interference diameter is 1,350 mm.","Motorized spindle versions listed are HSK-A100, 340 Nm at 6,000 rpm and HSK-A100, 340 Nm at 10,000 rpm.","A crankcase machining example lists a motorized spindle at 18,000 rpm and power/torque of 29 kW/34.6 Nm.","GROB Spindle Diagnostics (GSD) automatically monitors motorized spindle condition.","GROB Chip-in-Spindle Detection System (SiS) detects tool clamping faults caused by chips from 10 μm.","The document lists SIEMENS as a CNC control option; no specific SIEMENS controller model is given.","Tilting rotary tables use torque motor technology.","Loading options include top loading with agile loading gantry, Cartesian linear gantry, or Cartesian linear gantry with telescope, and front loading with automatic sliding changer or swiveling changer."],"safety_notes":[],"sources":[{"url":"https://www.grobgroup.com/en/products/product-range/machining-technology/g-modules/g720/","title":"Machining center G720","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":7,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"cnc_mill","manufacturer":"grob","controllers":[],"weight_kg":30000,"travel_x_mm":690,"travel_y_mm":920,"travel_z_mm":1160,"spindle_taper":"HSK-A100","table_load_kg":2000,"joints":[],"protocols":[],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/grob-g720","license":"https://creativecommons.org/licenses/by/4.0/"}