{"id":"index-traub-tnk40-8","model_id":"TNK40-8","name":"INDEX-TRAUB TRAUB TNK40-8","summary":"The TRAUB TNK40-8 is a production turning machine with two identical motor work spindles and two tool turrets, each carrying X, Z and Y axes. The main spindle takes bar stock up to 40 mm diameter and reaches 8,000 rpm with a maximum torque of 35 Nm. Driven tools in the turrets run at up to 12,000 rpm for milling and drilling in the same setup.","study_notes":["Spindle power 9.9 kW at 100% duty and 13.6 kW at 40% duty, 18.3 kW maximum; torque 19 Nm at 100%, 26 Nm at 40%, 35 Nm maximum.","C axis resolution 0.001 degree on both work spindles.","Chuck diameter 115 mm; turning length 220 mm.","Upper turret: compact shank tooling, 8 stations, driven tools 12,000 rpm, 1.0/2.8 kW, slide travel X 235.5 mm, Z 258 mm, rapid traverse X 24 m/min, Z 25 m/min.","Lower turret: compact shank tooling, 8 stations, driven tools 12,000 rpm, 1.5/4.1 kW, slide travel X 120 mm, Y ±50.8 mm, Z 254 mm, rapid traverse X 22.5 m/min, Y 25 m/min, Z 25 m/min.","Optional single drives available for tool stations; machine can carry up to three tool carriers and one back working unit.","Control TRAUB TX8i-s V8 with 19-inch touch screen.","Connecting power 40 kW (47 kVA); weight 5,300 kg depending on equipment; dimensions per installation plan."],"safety_notes":[],"sources":[{"url":"https://www.index-group.com/en/products/production-turning-machines/traub-tnk40","title":"Production turning machine TRAUB TNK40","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":9,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"cnc_lathe","manufacturer":"index-traub","controllers":[],"weight_kg":5300,"spindle_max_rpm":8000,"spindle_power_kw":18.3,"max_turning_length_mm":220,"bar_capacity_mm":40,"spindle_torque_nm":35,"spindles":2,"turrets":2,"joints":[],"protocols":[],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/index-traub-tnk40-8","license":"https://creativecommons.org/licenses/by/4.0/"}