Used Deckel Dmc 80 H Duoblock for sale (66,077)

Condition: good (used), Year of construction: 1998, Deckel Maho 5 axis vertical machining center in good condition with only ca 8600 spindle hours. Fully simultaneous 5 axis machining, controlled with CAM system. Heidenhain TNC426 control, 12000 rpm spindle speed and 30 positions in tool (SK40) magazine Crjdpjz Hbn Rjfx Apboh READY FOR IMMEDIATE DELIVERY. Travel X 800mm Travel Y 700mm Travel Z 600mm Max spindle speed 12000 rpm Tool changer/magazine SK40 Working spindle SK Places in tool magazine 30 Control Heidenhain TNC426 Rapid traverse X, Y and Z axis 24 m/min Spindel hours 8400 Please note: The information on this page has been obtained to the best of our ability and belief. This information is provided in good faith, but its accuracy is not guaranteed. Accordingly, this information is not binding and does not constitute a contractual condition. We recommend that you check all essential details during an inspection of the machine. To save unnecessary travel costs for our customers, in most cases we recommend organizing a live video inspection.

Condition: used, Year of construction: 2009, x-travel . mm y-travel . mm z-travel . mm control SIemens type 840 D ECOLINE Shopmill Tool changer 30 Fach dimensions of the machine ca. . m Workpiece width: Max. 550 mm Workpiece length: Max. 1300 mm Workpiece height: Max. 600 mm The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. Crodpfezdu Tdsx Apbsh About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: good (used), Year of construction: 2001, functionality: fully functional, operating hours: 4,550 h, Controller SIEMENS SINUMERIK 810/840D Table size 800 x 500 mm Table load 500 kg X travel 630 mm Y travel 500 mm Z travel 500 mm Spindle speed 8000 rpm Tool holder type SK40 ATC magazin 24-fold Repid speed 30 m/min Weight 4500 kgs Csdpfx Asy T I Ayepberh Dimensions LxWxH = 3100 x 2100 x 2400 mm Accessories - Coolant tank - Manuals The machine was used barely. Good condition.

Condition: repair required (used), Year of construction: 2002, operating hours: 20,300 h, For sale: Credpfx Aez E Hwbepbsh Manufacturer/Type: Deckel Maho, DMU 60 P hi-dyn, 5-axis machining center Year of manufacture: 2002 Information: Tool changer for 60 SK 40 tool holders, Mill Plus control system Current condition: The Y-axis travels out of round by 0.03 mm; the machine is currently not functioning because the hard drive needs to be replaced. Availability: Immediate Accessories: 3D measuring probe, machine manual

Condition: reconditioned (used), Year of construction: 2002, functionality: fully functional, CNC Universal – Milling and Drilling Machine DECKEL MAHO DMU 80 T With Heidenhain iTNC 530 path control Year of manufacture: 2002 Travel ranges: X 880 Y 630 Z 630 Spindle speed range: 0 – 18,000 rpm, stepless (SK 40) Csdpfx Apoz Dwd Aobjrh With the following accessories: NC rotary table, 700 mm, integrated into a fixed angular table, 1250 mm x 700 mm Clamping surface Vertical tool changer with 32 magazine slots (SK 40) Full enclosure with sliding doors and interior lighting Electronic handwheel Operating modes 3 + 4 Spiralscrew conveyor Coolant system 3-piece adjustable machine feet Spindle oil cooler Control cabinet cooler (Rittal) Operating manuals

Condition: ready for operation (used), Year of construction: 1990, functionality: fully functional, overall weight: 2,000 kg, The machine is running without any problems and will now be idle for a period of time as it is no longer needed. Travel ranges: X: approx. 485–500 mm Y: approx. 385–400 mm Z: approx. 380–400 mm Spindle: SK 40 DECKEL Dialog 2 / Contour 2 control system Crsdpezquftsfx Apbjh Table: universal, swiveling and rotating

Condition: used, functionality: fully functional, Manufacturer: TOS Codpozwmrfofx Apbjrh Type: H 80 Spindle diameter: 80 mm Spindle travel: 700 mm Spindle taper: Morse taper 5 (MT5) Table size: 1100 x 890 mm / 1120 x 900 mm (X / Y / Z): 1000 mm, 1000 mm, travel: 1100 mm

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, travel distance X-axis: 1,110 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 600 mm, rapid traverse X-axis: 90 m/min, rapid traverse Y-axis: 90 m/min, rapid traverse Z-axis: 90 m/min, controller manufacturer: HEIDENHAIN, controller model: iTNC 530, rotational speed (max.): 28,000 rpm, overall weight: 14,000 kg, spindle speed (max.): 28,000 rpm, operating hours of spindle: 10,000 h, number of slots in tool magazine: 30, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, 5-axis continuous machining center Linear motors 28,000 rpm spindle with HSK 63A, recently replaced Crodpfx Apezmxmtsboh Rotary table, 950mm diameter Wireless workpiece probe MH Laser presetter for tool inspection Optical scales Remote handwheel Chip conveyor NO coolant supply through the spindle Complete with manuals Disconnection scheduled for August 25th Removal scheduled for August 26th

Condition: used, functionality: fully functional, Year of construction: 2008, operating hours: 2,567 h, load capacity: 8,000 kg, lifting height: 3,450 mm, fuel type: diesel, mast type: simplex, construction height: 2,880 mm, fork carriage width: 1,800 mm, empty load weight: 12,340 kg, total length: 3,450 mm, drive type: Diesel, construction width: 2,250 mm, Diesel forklift Crjdpfoz Htimjx Apbsh Load center: 600 ISO class: FEM 4 A Mast type: Standard Transmission: Hydrostatic Technical condition: good Front tire type: Superelastic Front tire size: 4 x 8.25-15 Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire size: 2 x 300-15 Rear tire condition: 80 - 100% Battery year of manufacture: 2008 Additional single hydraulic circuit, exhaust cleaner, 3rd valve to fork carriage + 4th valve, full cab with heater, 2x work lights in the front, 1x work light in the rear.

Condition: used, Year of construction: 1996, x-travel 600 mm y-travel 560 mm z-travel 560 mm Control Siemens size of pallet 400x500 mm Table load 300 kg feed 40.000 m/min spindle speed: 20-8000 U/min spindle taper ISO 40 Spindle capacity 13/20 KW Torque 191 Nm 4-axis horizontal machining center. Dual pallet changer. B-axis table indexing 0.001°. Crjdpfx Asyutu Ajpbjh B-axis rapid traverse 40 rpm. KNOLL coolant system with filter and chip conveyor. 40 bar coolant supply via collar. Good condition. The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: excellent (used), Year of construction: 2002, CNC Machining Center DECKEL MAHO DMU 80 T Year of manufacture: 2002 Control: Heidenhain iTNC 530 Spindle: replaced on 14.11.2018, approx. 17,000 hours Technical data: Travel paths: X: 880 mm Y: 630 mm Z: 630 mm Cedpfxsylk Sys Apbsrh Controlled B-axis in milling head: -15° to 90° Spindle speed: 12,000 rpm Tool changer capacity: 32 positions Tool holder: SK 40 Coolant system: available

Condition: ready for operation (used), Year of construction: 2009, - USED - 3-AXIS VERTICAL MACHINING CENTRE   X-AXIS TRAVEL: 635 mm Y-AXIS TRAVEL: 510 mm Z-AXIS TRAVEL: 460 mm RAPID FEEDS X-Y-Z: 30 m/min SPINDLE: 10000 rpm; 9 - 13 kW; 57 - 83 Nm; SK-40 TABLE SIZE: 790 x 560 mm MAX ADMITTED LOAD: 600 Kg TOOL MAGAZINE: BASKET-TYPE ; 20 POS MAX TOOL DIAMETER: 80 (130) mm MAX TOOL LENGHT: 300 mm MAX TOOL WEIGHT: 6 Kg CONTROL UNIT: HEIDENHAIN iTNC 530 Cedpfx Apozlu S Nsbsrh WEIGHT: 3650 Kg OVERALL DIMENSIONS: 3375 x 2440 x 2665 mm ACCESSORIES: SWARF CONVEYOR ; PORTABLE HANDWHEEL

Condition: used, Year of construction: 2004, x-travel 1040 mm y-travel 600 mm z-travel 500 mm feed 30 m/min control Siemens type 840 D table surface area 1250x600 mm table load 800 kg Tool changer 30 Fach spindle taper ISO SK 40 turning speeds 12000 U/min total power requirement 24 kvA weight of the machine ca. 8,8 t Crodpfxezdcb Rs Apbjh dimensions of the machine ca. . m Chip Conveyor Quick-Clamping System The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 2009, x-travel 835 mm y-travel 510 mm z-travel 510 mm CNC-control iTNC530 HEIDENHAIN table-size 1000 x 560 mm max. table load 800 kg spindle taper SK 40 spindle turning speed range 20 - 14.000 U/min feed stepless 1 - 20.000 mm/min rapid traverse 20 m/min drive capacity - spindle motor 13 / 9 kW tool change unit 32 Pos coolant IKZ 25 bar voltage 400 V total power requirement 30 kVA weight of the machine ca. 4,5 t dimensions of the machine ca. 2,25 x 3,20 x 2,30 m chip conveyor 3,50 x 0,85 x 1,55 m coolant equipment 1,40 x 1,60 x 1,80 m spindle oil cooler 0,40 x 0,50 x 1,00 m - Serial-No.: 15415041384 - Machine ON: 72,882 h - Program Run: 25.267 h - control: HEIDENHAIN iTNC 530 - Linear scales in all 3 axis - electr. handwheel - Tool changer 30 pos. with double gripper - Chip conveyor Cedpfx Apjy Ty A Sebsrh - TSC with belt filter system - Coolant unit - new ball screw incl. bearings (X-Axis)

Condition: ready for operation (used), Year of construction: 2004, spindle speed (max.): 15,000 rpm, total height: 2,720 mm, total width: 2,630 mm, overall weight: 10,000 kg, table width: 630 mm, table length: 500 mm, travel distance X-axis: 600 mm, travel distance Y-axis: 700 mm, travel distance Z-axis: 600 mm, controller manufacturer: HEIDENHAIN, controller model: iTNC 530, product length (max.): 4,500 mm, table load: 600 kg, number of slots in tool magazine: 60, swivel angle B-axis (max.): 180 °, swivel angle C-axis (max.): 360 °, number of axes: 5, This 5-axis DECKEL MAHO DMC 60U was manufactured in 2004. It features a spindle speed of 12,000 rpm and a tool magazine with 60 positions, enhancing its versatility for various machining tasks. The Y-axis was replaced in 2023, ensuring improved performance. If you are looking to get high-quality machining capabilities, consider the DECKEL MAHO DMC 60U universal machining centre we have for sale. Contact us for further details. • Spindle taper: SK40 (replacement spindle, max ~2,500 operating hours) • Y-axis replaced in 2023 • Kinematics measured and within specification • Tool magazine: 60 stations • On-machine 3D probe: Hexagon • Year of manufacture: 2004 Additional equipment Credpfx Apozcqlusbeh • Tooling, chuck, vises (details to follow; see attached PDF and Excel) • No robots/automation/chip conveyor/bar feeder information provided in the text above Technical Specification Taper Size SK 40 Through-spindle Coolant Yes

Condition: ready for operation (used), Year of construction: 2005, operating hours: 42,900 h, General Data Machine weight 6800 Cedpjx Stl Dsfx Apbsrh Main Drive Spindle speed range 12000 Movement X-Axis Movement 640 mm Y-Axis Movement 600 mm Z-Axis Movement 500 mm Table Outer length 850 mm Outer width 600 mm This 3-axis DMG DECKEL MAHO DMC 64V linear was manufactured in 2005. Ideal for precision machining, this vertical machining center offers robust performance and reliability. Consider the opportunity to buy this DMG DECKEL MAHO DMC 64V linear vertical machining center. Contact us for more information. Application Types Milling

Condition: used, Year of construction: 2004, travel distance X-axis: 1,800 mm, travel distance Y-axis: 2,000 mm, travel distance Z-axis: 1,100 mm, total height: 4,375 mm, total length: 12,300 mm, total width: 11,200 mm, table length: 1,600 mm, table width: 1,400 mm, table load: 3,500 kg, Equipment: documentation/manual, 5-axis CNC Universal Machining centre, simultaneous Control: Heidenhain iTNC 530 Table size: 1600x1400 mm Table load: 3500 kg Number of pallets: 2 x Maximum workpiece diameterxheight: 1950x1100 mm Movement X-axis: 1800 mm Movement Y-axis: 2000 mm Movement Z-axis: 1100 mm C-Axis table rotation: 360 ° B-Axis travel: -7 / 187 ° Spindle Speed: 18000 1/min Spindle taper: HSK-A63 Spindle motor: 28/19 kW Magazin capacity: 120 Required floor space: 11200x12300 mm Height: 4375 mm Weight: 58000 kg Cedpfx Aszauxgspborh If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail.

Condition: used, Year of construction: 2007, reus 8000 min-1 U/min Weight 5500 kg Year 2007 Control Siemens 840D Dimensions (L/W/H) 3600 x 2800 x 2400 mm travel -x axis 1035 mm Codpfjwm Rqaex Apberh travel -y axis 560 mm travel -z axis 510 mm

Condition: ready for operation (used), Year of construction: 1997, operating hours: 19,831 h, travel distance X-axis: 630 mm, travel distance Y-axis: 500 mm, travel distance Z-axis: 500 mm, controller manufacturer: SIEMENS, controller model: Sinumerik 840D, total height: 2,700 mm, total width: 2,800 mm, table load: 500 kg, overall weight: 4,500 kg, spindle speed (max.): 8,000 rpm, number of slots in tool magazine: 24, product length (max.): 3,300 mm, number of axes: 3, This 3-axis DECKEL MAHO DMC 63V vertical machining centre was manufactured in 1997. It features an X-axis travel of 630 mm, Y-axis travel of 500 mm, and Z-axis travel of 500 mm. The machine is equipped with a tool magazine capacity of 24 tools and a maximum spindle speed of 8000 rpm. If you are looking to get high-quality machining capabilities, consider the DECKEL MAHO DMC 63V machine we have for sale. Contact us for further details. Crsdpfx Apeyw Rmvjbsh • Table: • Size: 800 × 500 mm • Operating hours: 19,831 h (actual counter from control) • Condition: Powered, connected, and fully operational • Note: Control upgrade from Sinumerik 810D to 840D Technical Specification Taper Size SK 40

Condition: excellent (used), Year of construction: 2012, machine/vehicle number: 11920000463, functionality: fully functional, travel distance X-axis: 1,000 mm, travel distance Y-axis: 1,000 mm, travel distance Z-axis: 1,000 mm, number of slots in tool magazine: 60, table length: 8,000 mm, table width: 1,000 mm, spindle motor power: 35,000 W, rapid traverse Z-axis: 60 m/min, rapid traverse X-axis: 60 m/min, rapid traverse Y-axis: 60 m/min, spindle nose: HSK-63, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, ACCESSORIES Chip conveyor Oil mist collector Csdpfx Apor Npvlebjrh 60 positions in tool changer 980 liter high pressure coolant through the spindle system with paper band filter Infrared measuring sensor Tool measurement with BLUM Laser 3D Quick Set preparation Cooling unit Air blast through the spindle

Condition: used, Year of construction: 2001, x-travel 600 mm y-travel 560 mm z-travel 560 mm table surface area 500x400 mm control Siemens type 840 D spindle taper ISO 40 spindle turning speed range 8000 U/min Codpfx Apjyt Rw Sjborh type of pallet-changer 2 Rotary table 360 ° Tool changer 40 weight of the machine ca. 11,5 t The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 2008, x-travel 1035 mm y-travel 560 mm z-travel 510 mm Control Heidenhain type iTNC 530 table surface area 1400x650 mm workpiece weight 1000 kg Tool changer . spindle taper ISO SK40 Spindle capacity 10 KW turning speeds 8000 U/min total power requirement 20 kVA weight of the machine ca. . t Codjyqvh Rspfx Apbjrh dimensions of the machine ca. . m Serial number: 15425033554 Chip conveyor 2 hydraulic vises Operating hours: 53005 Spindle hours: 12233 The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: excellent (used), Year of construction: 2010, operating hours: 13,362 h, functionality: fully functional, travel distance X-axis: 1,035 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 510 mm, rapid traverse X-axis: 30 m/min, rapid traverse Y-axis: 30 m/min, rapid traverse Z-axis: 30 m/min, feed length X-axis: 1,035 mm, feed length Y-axis: 560 mm, feed length Z-axis: 510 mm, nominal power (apparent): 17 kVA, torque: 83 Nm, controller manufacturer: Siemens 810D, total height: 2,758 mm, total length: 3,137 mm, total width: 3,355 mm, table width: 560 mm, table length: 1,200 mm, table load: 1,000 kg, overall weight: 4,250 kg, spindle speed (min.): 20 rpm, spindle speed (max.): 8,000 rpm, operating hours of spindle: 13,362 h, number of slots in tool magazine: 20, tool length: 300 mm, tool diameter: 80 mm, tool weight: 6,000 g, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, - Year of manufacture: 2010 - Condition: good, used - Control: Siemens 810D - Table: 1200 x 560 mm - Travels: 1,035 x 560 x 510 mm - Spindle speeds: 20 - 8,000 rpm Cedpeyf Hymofx Apbjrh

Condition: used, Year of construction: 2005, x-travel 750 mm y-travel 560 mm z-travel 600 mm Control HEIDENHAIN iTNC 530 total power requirement 70 kW weight of the machine ca. 11.000 kg dimensions of the machine ca. m D E C K E L M A H O (Germany) Vertical CNC Machining Centre with high speed linear drives in 3 Axis and in double column design for high precision work Model DMC 75 V LINEAR Year 2005 _____ Working range: Longitudinal stroke X Axis 750 mm Vertical stroke Z Axis 600 mm Cross stroke Y Axis 560 mm Table clamping size 950 x 650 mm Max. Table load 1.000 kg Max. height of workpiece 600 mm Tool holder Cone HSK 63 Spindle (KESSLER) speeds 18,000 rpm Torque, max. 86/130 Nm Spindle run-up time / stop time 3.2 sec Feeds / Quickfeeds, X, Y and Z Axes max. 90,000 mm/min Feed force 11.000/9.500 N Axis acceleration, X / Y / Z Axes 15 / 12 / 18 m/s Spindle drive 25/35 kW Total electrical load, approx. 75 kW - 400 V - 50 Hz Weight, approx. 11.000 kg Accessories / Special Features: This machine is very interesting because of the very stable double Column Portal Design and with the modern linear technology for fast and powerful high precision work. * HEIDENHAIN modern CNC Control System Model iTNC 530 in 3 axes, with all the usual options, cycles and sub programmes. * Table moves only in x axis and allows a comfortable loading of heavy workpieces * 30-position disktype tool magazine for max. tool Ø 100, 140 and 200 mm x max. length 300 mm. Max. weight 10 kg. Cut-to-cut time 6 sec. Pick-Up by main spindle. * BLUM tool-breakage control, Blum Receiver for RENISHAW –Head, no head available. * Double linear motors ensure very fast feed motions and strong feed power, equipped with own cooling system. * KESSLER Milling Spindle, Liquid-cooled, steplessly programmable up to 18.000 rpm * Completely covered working area with 2 sliding doors, one with spin-type bull-eye. * KNOLL Coolant device with scraper-type chip conveyor and pressure pomp. * Spindle working hours approx. 23.000 h Condition : Very good. Machine can soon be inspected under power. Crodpfxet Hw Tre Apbsh Delivery : Ex stock, as inspected. Payment : Net, after conclusion of contract.

Condition: ready for operation (used), Year of construction: 2007, operating hours: 11,421 h, functionality: fully functional, machine/vehicle number: 29100009074, travel distance X-axis: 640 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, workpiece diameter (max.): 140 mm, spindle speed (max.): 16,000 rpm, number of slots in tool magazine: 30, TECHNICAL DETAILS Travel range X-axis: 640 mm Travel range Y-axis: 600 mm Travel range Z-axis: 500 mm Clamping area length: 850 mm Clamping area width: 600 mm T-slots: DIN 650-14 Loading height, top edge of table: 850 mm Table load max.: 600 kg Spindle manufacturer: Franz Kessler GmbH Speed: 1,600 - 4,700 / 4,700 - 16,000 rpm Number of magazine slots: 30 Slot coding: Fixed slot coding Load weight max.: 90 kg Chip-to-chip time without free travel logic t3/t2: 6.8 s Chip-to-chip time without free travel logic t1 (30): 7.9 s Chip-to-chip time with free travel logic t3/t2: 8.3 s Chip-to-chip time with free travel logic t1 (30): 9.3 s TOOLS AND TOOL MAGAZINE Diameter, standard tool max.: 100 mm Diameter, special tool with free neighboring slots max.: 140 mm Tool length max.: 300 mm Tool weight max.: 6 kg FEED Feed force X, Y, and Z axes: 7,000 N Feed rate X, Y, and Z axes max.: 40 m/min Rapid traverse speed Y and Z axes: 40 m/min Rapid traverse speed X axis: 70 m/min Ball screw diameter/pitch: 40/15 mm POSITIONING SYSTEMS Positioning accuracy, direct measuring system X-axis: 0.008 mm Positioning accuracy, indirect measuring system Y and Z axes: 0.020 mm Positioning accuracy, direct measuring system (option): 0.010 mm Csdpfx Apszpxqdeborh Resolution: 0.001 mm Input fineness X, Y, and Z axes: 0.001 mm MACHINE DETAILS Operating hours: 11,421 h Power-on time: 32,054 h Connected power: 33 kVA Nominal current max.: 58 A Fuse rating: 63 A Mains voltage: 400 V Mains frequency: 50/60 Hz Control voltage: 230 V Control voltage: 24 V COOLANT AND CHIP MANAGEMENT Chip box container capacity: 150 l Pump capacity, external coolant supply: 50 l/min Pressure, external coolant supply: 2.0 bar Pump capacity, chip flushing: 90 l/min Pressure, chip flushing: 1.9 bar Pump capacity, flushing gun: 50 l/min Pressure, flushing gun: 2.0 bar