Beli Deckel Maho Dmc 635 V bekas (317)

Kondisi: siap digunakan (bekas), Tahun pembuatan: 1999, jam operasional: 14.249 h, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 800 mm, jarak lintasan sumbu Y: 700 mm, jarak gerak sumbu Z: 600 mm, berat benda kerja (maks.): 800 kg, kecepatan spindel (maks.): 12.000 rpm, 1 Bledpfx Ajxcvy Ajbkor

Kondisi: baik (bekas), Tahun pembuatan: 1996, jam operasional: 35.000 h, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 500 mm, jarak lintasan sumbu Y: 380 mm, jarak gerak sumbu Z: 380 mm, kecepatan rotasi (maks.): 18.000 rpm, berat keseluruhan: 4.000 kg, For sale is a 5-axis machining center by DMG MORI, model DMU 50 5. The machine comes from a vocational school, is in good condition, and has been very well maintained. Particularly noteworthy: the spindle has only 2,000 operating hours, 18,000 rpm, and the machine is equipped with a through-spindle coolant system (IKZ). Technical specifications: Year of manufacture: 1996 Operating hours: 35,000 h Spindle replacement at: 33,000 h Spindle hours: 2,000 h Spindle taper: SK 40 Control: Heidenhain Mill Plus Max. spindle speed: 18,000 rpm Travel (X/Y/Z): 500/380/380 mm Rotary table: 500x380 mm Installation dimensions (L/W/H): approx. 4,000/5,200/2,400 mm Weight: approx. 4,000 kg Europe-wide delivery can be arranged upon request for an additional charge. Bsdjry Tn Ejpfx Abkslr All prices are plus VAT. Inspection possible by appointment. Please contact us—our team is happy to assist you. Trade-in or exchange possible! Machinery purchase/sale BUYING / SELLING OF PRODUCTION & METALWORKING MACHINES AND MORE. Are you looking for a high-quality yet affordable metalworking machine for your production? Or would you like to sell your machine? For further information or to get in touch, please visit our website.

Kondisi: bekas, Palet dengan slot T, cocok untuk DMG DMC 100 H dan DMG DMC 100 U. Beberapa palet masih tersedia. Bodpfoqx Uh Njx Abkolr

Kondisi: bekas, Tahun pembuatan: 2008, X-axis travel: 800 mm Y-axis travel: 700 mm Z-axis travel: 600 mm Control: SINUMERIK 840D Powerline Spindle speeds – infinitely variable: 1 – 8,000 rpm Drive power at 40% duty cycle: 28.00 kW Spindle diameter at front bearing: 80.00 mm Spindle taper: HSK-A100 B-axis: 187° Feed rate X/Y/Z axis: 15,000 mm/min Rapid traverse X/Y/Z: 50.00 m/min Feed force X/Y/Z axis: 10,000 N B-axis rapid traverse: 11.20 rpm Pallet size: 800 x 630 mm Table load capacity: 0.80 t C-axis: 360.000 x 0.001° Bedpfx Abew Df A Sokjlr Table speed range: 1 – 500 rpm Tool magazine: chain magazine for 120 tools Tool diameter: 100 mm Tool diameter with 2 free adjacent spaces: 160 mm Max. tool length: 350 mm Max. tool weight: 10.00 kg Total connected load: 60.00 kW Machine weight approx.: 13.00 t Installation dimensions approx.: 7.40 x 5.30 x H3.50 m Equipped with Siemens SINUMERIK 840D control, tool taper cleaning, tool breakage monitoring, coolant system with 2 pressure stages (40 bar / 80 bar), chip conveyor, operation mode 4, extraction system.

Kondisi: baik (bekas), Tahun pembuatan: 1997, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 570035, jarak pergerakan sumbu X: 710 mm, jarak lintasan sumbu Y: 520 mm, jarak gerak sumbu Z: 520 mm, gerak cepat sumbu X: 30 m/menit, pergeseran cepat sumbu Y: 30 m/menit, pergerakan cepat sumbu Z: 30 m/menit, kecepatan pemakanan sumbu X: 10 m/menit, laju pemakanan gandar Y: 10 m/menit, laju pemakanan sumbu Z: 10 m/menit, tinggi total: 3.300 mm, panjang total: 4.600 mm, lebar total: 5.500 mm, lebar meja: 500 mm, panjang meja: 700 mm, berat keseluruhan: 6.000 kg, kecepatan spindel (min.): 20 rpm, kecepatan spindel (maks.): 12.000 rpm, daya motor spindle: 25.000 W, tegangan masuk: 400 V, jenis arus masuk: tiga fasa, Perlengkapan: dokumentasi / manual, 5-axis machining center, Manufacturer: DECKEL MAHO, Model: DMU 70 V, Year of manufacture: 1996, Serial no.: 570035, Travel (X/Y/Z): 710/520/520 mm, Control: HEIDENHAIN, max. spindle speed: 12,000 rpm, 60-position tool changer, compact filter system INTERLIT SUK200/900, year of manufacture: 1997, fill capacity: 900 l, filter area: 0.2 m³, chip conveyor, internal coolant supply Blodpfxjrkz A Io Abkjr Note: 1 tool changer defective

Kondisi: hampir baru (bekas), Tahun pembuatan: 2009, jam operasional: 47.443 h, jarak pergerakan sumbu X: 800 mm, jarak lintasan sumbu Y: 800 mm, jarak gerak sumbu Z: 800 mm, gerak cepat sumbu X: 60 m/menit, pergeseran cepat sumbu Y: 60 m/menit, pergerakan cepat sumbu Z: 60 m/menit, panjang pemakanan sumbu X: 800 mm, panjang umpan sumbu Y: 800 mm, panjang umpan sumbu Z: 800 mm, kecepatan pemakanan sumbu X: 60 m/menit, laju pemakanan gandar Y: 60 m/menit, laju pemakanan sumbu Z: 60 m/menit, torsi: 980 Nm, produsen pengendali: Siemens, model controller: 840D-Powerline, tinggi total: 2.900 mm, panjang total: 4.950 mm, lebar total: 5.060 mm, lebar meja: 800 mm, panjang meja: 630 mm, beban meja: 1.000 kg, kecepatan rotasi (maks.): 8.000 rpm, berat keseluruhan: 14.000 kg, kecepatan spindel (maks.): 10.000 rpm, jam operasional spindle: 22.963 h, pasokan pendingin: 40 batang, daya motor spindle: 32.000 W, jumlah slot dalam magazin alat: 180, CNC control: Siemens 840D Powerline Axes Travel X-axis mm: 800 Travel Y-axis mm: 800 Travel Z-axis mm: 800 C-axis indexing degrees: 360º (0.001) B-axis indexing degrees: 0-190º Feed rate m/min: 60 Rapid traverse m/min: 60 NC Milling/Turning Table: Number of pallets: 2 Pallet dimensions mm: Ø800x630 Max. workpiece weight kg: 1000 Table rotation speed rpm: 8000 Max. torque Nm: 980 Spindle Max. spindle speed rpm: 10000 Spindle drive power kW: 44/32 (40%ED/continuous) Spindle torque Nm: 288/187 Cooling Coolant supply through spindle bar: 40 Tank capacity liters: 980 Bjdpfx Aboui Np Rekolr Tool system Tool holder: HSK-A 100 Number of tools in magazine: 180 Chip-to-chip time sec.: 4.5 Equipment Electronic handwheel Chip conveyor Infrared probe Rinsing gun Operating mode 4 Selectable air blast through spindle center via M-function Signal light 3D quickSET Machine interface for FASTEMS system Paper band filter Machine run time: Power-on hours: 47,443 Spindle operating hours: 22,963 Basic machine: Dimensions/weight Length mm: 4956 Width mm: 5064 Height mm: 2900 Weight kg: 14,000

Kondisi: bekas, Tahun pembuatan: 2001, DECKEL MAHO CNC Vertikales Bearbeitungszentrum Typ DMC 63 V Baujahr 2001, Seriennr. 288500177xx _____ Arbeitsbereich: Längsverfahrweg X-Achse: 630 mm Quer-Verfahrweg Y-Achse: 500 mm Vertikal-Verfahrweg Z-Achse: 500 mm Aufspannfläche: 800 x 500 mm Maximale Tischbelastung: 500 kg Abstand Tisch – Spindel, min./max.: 150 / 650 mm Werkzeugaufnahme: SK 40 Stufenlose Spindeldrehzahlen: 8.000 U/min Vorschübe X/Y/Z-Achse: 0 - 30.000 mm/min Spindelantriebsleistung: 9 / 13 kW Gesamtanschlussleistung ca.: 17 kW, 400 V, 50 Hz Gewicht ca.: 4.500 kg Zubehör / Sonderausstattung: • SIEMENS 810 D CNC-Steuerung in 3 Achsen mit ShopMill Bedien- und Programmier-Software; enthält alle gängigen Optionen, Zyklen und Unterprogramme, inklusive grafischer Werkstattprogrammierung • Mobiles elektronisches Handrad • 24-fach Werkzeug-Tellermagazin, max. Werkzeugdurchmesser 80/140 mm x max. Länge 300 mm • Innere Kühlmittelzuführung durch die Spindel, 15 bar mit entsprechender Filtereinrichtung an der Kühlmittelanlage • Vollständige Arbeitsraum-Umhausung mit Schiebetüren, VISIPORT Klarsicht-Drehfenster, Ölnebelabsaugung, komplette Kühlmittelfilteranlage mit Späneförderer Nur 3.216 Betriebsstunden, die Maschine war ausschließlich im Ausbildungszentrum im Einsatz! Bledpfx Abet Ii Iwjkjr Zustand: sehr gut, aus Ausbildungswerkstatt Weitere Informationen/Videolink: geiger-germany.com/images/videos/DMG-DMC63V/DMC63V-1.mp4 Lieferung: ab Lager, sofort verfügbar, FCA Metzingen Zahlung: rein netto – nach Rechnungserhalt Laufend Auswahl an CNC-Bearbeitungszentren am Lager – bitte fragen Sie auch nach Alternativen!

Kondisi: sangat baik (bekas), Tahun pembuatan: 2004,

Tahun pembuatan: 2006, Kondisi: siap digunakan (bekas), Travel paths X/Y/Z: 885mm/600mm/600mm, rotary axes B/C: -10° to 110°/360°, rapid traverse X/Y/Z: 90m/min, spindle speed: 28,000 rpm. Table dimensions X/Y: 950mm/650mm, control: iTNC 530, operating hours: 90,711 h, spindle hours: 19,457 h. Includes workpiece touch probe, tool changer with 100 positions. Blsdeta H S Sjpfx Abkor

Kondisi: bekas, Deckel Maho DMC 104V linear Bjdpfxew Rtd Nj Abkolr

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2001, Allgemeine Daten Maschinengewicht: 6.500 kg Steuerung Hersteller: SIEMENS Modell: Sinumerik 840D Hauptantrieb Drehzahlbereich der Spindel: 18.000 U/min Leistung des Spindelmotors: 35 kW Bljdjwct Aqopfx Abkjr Anzahl der Achsen: 3 Verfahrwege X-Achse: 560 mm Y-Achse: 560 mm Z-Achse: 510 mm Dieses 4-Achsen horizontale Bearbeitungszentrum DECKEL MAHO DMC 50 H wurde 2001 gebaut. Es eignet sich ideal für Präzisionsbearbeitung und überzeugt durch seine robuste Bauweise sowie zuverlässige Leistung. Für weitere Informationen zu dieser Maschine kontaktieren Sie uns bitte. Anwendungsbereiche Fräsen

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2006, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 760 mm, jarak lintasan sumbu Y: 560 mm, jarak gerak sumbu Z: 560 mm, kecepatan spindel (maks.): 12.000 rpm, jumlah slot dalam magazin alat: 60, 5-axis machining center with rotary table (C-axis) and swiveling head (B-axis) Bjdpswvitxofx Abkolr The machine comes from a large production facility and has been maintained preventively. TECHNICAL DETAILS Travel X-axis: 760 mm Travel Y-axis: 560 mm Travel Z-axis: 560 mm Control system: Siemens 840 D Powerline Tool holder: SK 40 Number of tool magazine stations: 60 Spindle speed: 0–12,000 rpm Pallet size: 630 x 500 mm Feed rate: 20–15,000 mm/min Rapid traverse: 50 m/min MACHINE DETAILS Total connected load: 64.2 kVA Total power requirement: 26 kW Machine weight: 12 t Space requirement: 5.2 x 4.5 x 2.45 m Spindle hours: 20,844 h On-time: 58,437 h Dimensions and Weight Machine body (LxWxH): 3,450 x 2,400 x 2,650 mm Machine body weight: approx. 6.50 t Tool magazine (LxWxH): 2,600 x 1,000 x 2,000 mm Tool magazine weight: approx. 0.50 t Coolant unit (LxWxH): 1,850 x 1,750 x 1,500 mm Coolant unit weight: approx. 0.50 t Chip conveyor (LxWxH): 3,200 x 1,000 x 1,700 mm Chip conveyor weight: approx. 0.50 t EQUIPMENT - Pallet changer with 2 pallets - Tool changer with 60 positions

Kondisi: bekas, Tahun pembuatan: 1995, Travel X: 600 mm Travel Y: 560 mm Travel Z: 560 mm Control: SIEMENS 840 C Total power requirement: 12 kW Machine weight approx. 10,000 kg Space requirements approx. m DECKEL MAHO Horizontal 4-axis CNC machining center with pallet changer Model: DMC 60 H Year of manufacture: 1995 Serial No. 102 (6004 50 019602 00) ----- Working area: Cross travel (X-axis): 600 mm Vertical travel (Y-axis): 560 mm Longitudinal travel (Z-axis): 560 mm Rotary table as B-axis: 360,000° Pallet size: 500 x 400 mm Max. table load: 400 kg Max. table rotation speed: 25 m/min Tool holder: SK40 Spindle speed, stepless: 20 – 15,000 rpm Feed rates / rapid traverse max.: 20 m/min / 40 m/min AC main drive approx.: 12/20 kW (?)* Total drive approx.: 40 kW – 400 V – 50 Hz Weight approx.: 10,000 kg Accessories / Special equipment: • SIEMENS 4-axis path control type 840 C with monitor and appropriate subprograms • Automatic workpiece pallet changer with separating plate between work area and setup station with two rotary doors on the front, two pallets on the machine, possibly one separate pallet additionally • RENISHAW workpiece measuring device, but without probe Bledpfxot Hw R Re Abkjr • BLUM drill breakage control mounted laterally on the table • CNC-controlled B-axis for the worktable with 360,000° resolution, rotation speed 25/min • Automatic tool changer with 40 tool positions mounted on the left side, for tools up to diameter Ø 100 mm, max. length 315 mm, weight approx. 8 kg • Free-standing coolant unit (IKZ) by KNOLL, type RF 200/1100, with cyclone filter and belt filter in conjunction with a hinged belt chip conveyor with submersible pump • Modern round machine enclosure with sliding door opening and ROTO Clear window, etc. Condition: good – demonstration available soon Delivery: immediately ex stock Payment: strictly net – upon receipt of invoice * Original text notes uncertainty on main drive power (12/20 kW).

Kondisi: sangat baik (bekas), Tahun pembuatan: 2000,

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2002, Verfahrweg_XYZ_630mm_630mm_560mm_Toolholder_HSK-63A_HU Bsdpfx Abew Nq Rqekelr

Kondisi: sangat baik (bekas), Tahun pembuatan: 1999, Fungsionalitas: berfungsi sepenuhnya, Vertical Machining Center / Manufacturer: DECKEL MAHO / Model: DMC 63V / Year of manufacture: 1999 The machine can be inspected under power and cutting operation by appointment. Well-maintained, very well-preserved, fully operational condition. Spindle replacement: 18.03.2022 Spindle hours (as of 13.03.2025): 51,206 h The machine is equipped with a Lehmann A-axis and counter bearing (as new). TECHNICAL DATA: Working area: - X-axis: 630 mm - Y-axis: 500 mm - Z-axis: 500 mm Bljdpfx Aev Nxbyobkor Feed drive/axis motors: - Feed force X, Y, Z (100% duty cycle): 6,000 N - Feed speed: 0 - 30,000 mm/min - Rapid traverse X, Y, Z: 30 m/min - Ball screw diameter/pitch (X, Y, Z): 40/20 mm Positioning accuracy: - Pmax on X, Y, Z-axis according to VDI/DGQ 3441: 0.015/0.010 mm (indirect/direct measuring system) Measuring system: - Input increment: 0.001 mm Work spindle: - Drive output (40/100% duty cycle): 13/9 kW - Torque (40/100% duty cycle): 83/57 Nm - Speed range: 1 - 10,000 rpm - Tool holder DIN 69 871-A: SK40 - Tool clamping force: 12,000 N Tool magazine/changer: - Tool change system: Pick-up - Number of magazine stations: 24 positions - Max. tool diameter with adjacent free stations: 80/140 mm - Max. tool length: 300 mm - Max. tool weight: 7 kg - Chip-to-chip time: 6.5 sec - Magazine rotation speed: 47 rpm - Max. magazine load (24 x 3 kg): 72 kg Machine table: - Clamping surface with T-slots DIN 650-14: 800 x 500 mm - Table load (setup weight): 500 kg - Loading height: 850 mm - Max. workpiece height (with max. tool length): 240 mm EQUIPMENT: - CNC control: Siemens 810D powerline - Lehmann A-axis and counter bearing (as new) - Direct measuring system - Through-spindle coolant, 15 bar - Coolant unit (emulsion) - Electronic handwheel - Chip conveyor - Documentation - CE certification No guarantee for completeness and correctness of technical data and equipment. - Subject to prior sale -

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2005, Main Drive Number of axis 5 Blsdpfx Abjwmg T Doksr Media Chip conveyor Yes Diese DMG DECKEL MAHO DMC 60T wurde im Jahr 2005 hergestellt. Als Universal-Bearbeitungszentrum bietet sie eine robuste Bauweise und zuverlässige Leistung für Präzisionsbearbeitungen. Nutzen Sie die Gelegenheit, dieses DMG DECKEL MAHO DMC 60T Universal-Bearbeitungszentrum zu erwerben. Kontaktieren Sie uns gerne für weitere Informationen. Anwendungsbereiche Fräsen

Kondisi: baik (bekas), Tahun pembuatan: 2005, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 1148000080, jarak pergerakan sumbu X: 1.000 mm, jarak lintasan sumbu Y: 1.000 mm, jarak gerak sumbu Z: 1.000 mm, kecepatan rotasi (maks.): 12.000 rpm, jumlah slot dalam magazin alat: 60, sudut putar poros C (maks.): 360 °, TECHNICAL DETAILS X-axis travel: 1,000 mm Y-axis travel: 1,000 mm Z-axis travel: 1,000 mm C-axis: 360° CNC control: MillPlus IT Heidenhain Tool Magazine Capacity: 60 slots Spindle Max. spindle speed: 12,000 rpm Spindle taper: SK50 DIN 69871 Table Clamping area: 1,000 mm x 800 mm Blsdpfxevrfnfe Abker MACHINE DETAILS Total power requirement: 65 kVA Machine weight: approx. 24.5 t Required space: approx. 6.50 m x 5.20 m x 3.50 m EQUIPMENT - Pallet changer - Electronic handwheel HR410 - 4th mode of operation - BLUM laser tool measurement - Vibration sensor - High-pressure coolant unit, 40 and 80 bar - Rotoclear Air filtration system Coolant system 980 l Chip conveyor

Kondisi: siap digunakan (bekas), Tahun pembuatan: 1999, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 600 mm, jarak lintasan sumbu Y: 560 mm, jarak gerak sumbu Z: 560 mm, berat benda kerja (maks.): 600 kg, sudut putar poros C (maks.): 360 °, Perlengkapan: dokumentasi / manual, TECHNICAL SPECIFICATIONS X-axis: 600 mm Y-axis: 560 mm Bodpfx Aewtq S Rsbkslr Z-axis: 560 mm C-axis: 360° Control system: Siemens Number of pallets: 2 Pallet size: 400 x 500 mm Permissible pallet load: 600 kg MACHINE DETAILS Weight: 10,500 kg

Kondisi: baik (bekas), Tahun pembuatan: 2000,

Kondisi: bekas, Tahun pembuatan: 1994, Technical details: X-axis travel: 700 mm Y-axis travel: 550 mm Z-axis travel: 500 mm Tool holder: SK40 Max. spindle speed: 12,000 rpm Bedpfjvap Sqsx Abkolr Tool changer: 30 positions Electronic handwheel Chip conveyor

Kondisi: bekas, Tahun pembuatan: 2012, X-axis travel 630 mm Y-axis travel 800 mm Z-axis travel 750 mm Control SIN 840D sl Siemens B-axis 360 x 0.001° A-axis -200 to +25 x 0.001° Spindle speed – infinitely variable 20 - 18,000 rpm Drive power 100% duty cycle 28.00 kW Drive power 40% duty cycle 34.00 kW Torque at 40% / 100% duty cycle 110 / 84 Nm Tool holder HSK 63 Feed rate X/Y/Z axis 1 - 100,000 mm/min Rapid traverse X/Y/Z 100.00 m/min Feed force X/Y/Z 9 / 6 / 9 kN Feed rate B axis 1 - 14,400°/min Feed rate A axis 1 - 7,200°/min Bljdpfx Abevxwxvokjr Pallet size 2x 500 x 500 mm Max. workpiece weight 400 kg Max. workpiece diameter 800 mm Max. workpiece height 800 mm Tool magazine with 63 positions Max. tool diameter 280 mm Max. tool length 550 mm Max. tool weight 15.00 kg Total power requirement 65.00 kW Machine weight approx. 14.00 t Space required approx. 5.50 x 3.50 x H3.20 m 5-axis machining center with SIEMENS SINUMERIK 840D sl control, mechanical tool breakage monitoring, emulsion mist extractor. Machine was operated in a production line, therefore supplied without chip conveyor and without coolant system.

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2000, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 800 mm, jarak lintasan sumbu Y: 700 mm, jarak gerak sumbu Z: 600 mm, kecepatan spindel (maks.): 12.000 rpm, New spindle in 2023 Blsdewtq Swspfx Abksr TECHNICAL DETAILS X-axis travel: 800 mm Y-axis travel: 700 mm Z-axis travel: 600 mm Table size: 800 x 635 mm Control: Heidenhain Spindle speed: 0 - 12,000 rpm Spindle drive power: 10.0 kW Tool holder: ISO 40 MACHINE DETAILS Approx. machine weight: 11 tons Connected load: 44 kVA Maximum current: 64 A

Tahun pembuatan: 2002, Kondisi: bekas, Fungsionalitas: berfungsi sepenuhnya, Horizontal machining center with double chain magazine. TECHNICAL DETAILS X-travel: 600 mm Y-travel: 560 mm Z-travel: 560 mm Control: Siemens Sinumerik 840D B-axis: 360 x 0.001° Spindle speed – stepless: 8,000 rpm Feed rate X/Y/Z-axis: 1 – 60,000 mm/min Bedpfsnh Rn Asx Abkslr Feed rate B-axis: 9,250 °/min Rapid traverse X/Y/Z: 60.00 m/min Feed force X/Z: 9,600 N Feed force Y: 8,000 N Drive power 40% duty cycle: 20.00 kW Drive power 100% duty cycle: 13.00 kW Tool holder: SK40 Torque at 40% / 100% duty cycle: 191 / 124 Nm Pallet size: 2x 400 x 500 mm Workpiece weight: max. 600 kg Tool magazine: 180 Tool diameter: 90 mm Tool diameter with 2 free adjacent slots: 160 mm Tool length: max. 350 mm Tool weight: max. 3.50 / 12.00 kg MACHINE DETAILS Total power requirement: 65.00 kW Machine weight: approx. 16.00 t Space requirement: approx. 9.00 x 4.50 x 3.50 m EQUIPMENT Coolant system with through-spindle coolant (IKZ) Double chain magazine with 180 stations Chip conveyor BLUM tool laser measurement Electronic handwheel

Kondisi: sangat baik (bekas), Tahun pembuatan: 1999,