Used Deep Hole Drilling And Milling Machine for sale (71,313)

Condition: excellent (used), Year of construction: 2018, functionality: fully functional, drilling depth: 1,600 mm, feed length X-axis: 3,000 mm, feed length Y-axis: 2,100 mm, feed length Z-axis: 1,500 mm, overall weight: 50,000 kg, feed rate X-axis: 10,000 m/min, feed rate Y-axis: 10,000 m/min, feed rate Z-axis: 10,000 m/min, spindle speed (max.): 4,500 rpm, drill diameter: 40 mm, table length: 2,100 mm, table width: 1,900 mm, CNC Heidenhain iTNC 640 AXES OF MOVEMENT Maximum drilling depth in a single operation (V axis): mm 1,600 Table travel, horizontal movement (X axis): mm 3,000 Vertical movement (Y axis): mm 2,100 Column approach movement (milling) (Z axis): mm 1,500 Drilling slide tilting (resolution 0.001°) (A axis): +30° / -15° Table rotation (resolution 0.001°) (B axis): 360° Max axis feed rate: mm/min 10,000 DEEP HOLE DRILLING AND MILLING SPINDLE – ISO 50 Solid drilling capacity: mm 5 – 25 Maximum drilling diameter: mm 40 Adjustable spindle speed: rpm 1 – 4,500 Spindle power S1: kW 17 Spindle torque: Nm 324 Standard drilling tool holder: mm Ø 25 x 70 Maximum internal spindle pressure: bar 120 Taper type: ISO 50 DIN 69871/A Coolant system: Yes ROTARY TABLE Rotary table dimensions: mm 1,900 x 2,100 Table rotation (resolution 0.001°) (B axis): 360° Table load capacity in rotation: kg 20,000 T-slots: mm 22 OIL SYSTEM Nsdeywnr Nspfx Akujlb Hydraulic pump motor power: kW 4 – 7.5 Self-regulated oil pressure: bar 15 – 120 Self-regulated oil flow rate: l/min 5 – 80 Oil tank capacity: L 800 – 1,000 Cooled oil temperature: 25 – 32 °C Filtration grade: micron 16 MACHINE DIMENSIONS AND WEIGHT Width x Length x Height: mm 7,000 x 7,900 x4,700h Machine weight: kg 50,000 DRILLING CAPABILITIES WITH GUN DRILLS Maximum depth: mm 1,600 Maximum rotation speed: rpm 4,500 Minimum drilling diameter: mm 6 Maximum drilling diameter: mm 40 THREADING HEAD “IMSASISTEM” WORKING FEATURES Max rotation speed: rpm 4,500 Maximum threading on C40 steel: M36 Machine equipped with: • Remote electronic handwheel Heidenhain • ISO 50 tool changer magazine with 40 positions • Fume extraction system 4,000 m³/hour • Through-spindle air/oil system • M24 threads on table side • Various tools and equipment • Tool rack with assorted gun drills • User and maintenance manual and CE declaration of conformity

Condition: excellent (used), Deep hole drilling machine tools DEGEN - UTB MACH-ID 9188 Make: DEGEN Nlsdpfxex Tp Aho Akujb Type: UTB Year: 2005

Condition: good (used), Year of construction: 2006, feed length X-axis: 1,650 mm, feed length Y-axis: 1,000 mm, Max. drill Ø steel: 5 - 40mm X - Travel: 1650mm Y - Travel: 1000mm W - Travel: 500mm Table size L x W / or ø:1200 x 1500mm Spindle taper: SK40Mk Speeds / ranges: 4200Rpm Length: 6500mm Width: 3800mm Height: 3400mm Weight: 6500kg Nedpewyup Tofx Akuolb

Condition: excellent (used), Year of construction: 2018, drilling depth: 1,250 mm, total length: 8,100 mm, total width: 6,300 mm, total height: 4,300 mm, workpiece weight (max.): 7,000 kg, overall weight: 31,000 kg, travel distance X-axis: 1,600 mm, travel distance Y-axis: 1,250 mm, travel distance Z-axis: 1,100 mm, spindle speed (max.): 6,000 rpm, drill diameter: 36 mm, 4 side complete machining Swivel drilling and milling unit DCM Dynamic Collison Monitoring CAM model QCK (Quick Check Kinematics) Transfer bore cycle (380-382) 90 Bar IKZ Coolant system Extra ATC Tower 24 position (4 x 6) HSK 63 Double ballscrew construction Clear tank 1650 L and Waste tank 1300 L Chip conveyor Max. drill Ø steel: 36mm Drilling depth: 1250mm X - Travel: 1600mm Y - Travel: 1250mm Z - Travel: 1100mm W - Travel: 1600mm Table load: 7000 Table size L x W / or ø:1500 x 1100mm Spindle taper: HSK-63Mk Power on spindle: 23kW Speeds/ranges: 6000rpm Nljdpfxjvn Sv Ue Akujb Length: 8100mm Width: 6300mm Height: 4300mm Weight: 31000kg

Year of construction: 1980, condition: ready for operation (used), A Gebrüder Irle CNC large-format deep-hole drilling machine is available. Drilling capacity steel: 40mm, max. drilling depth: 1600mm, drill spindle adjustment: 350mm, vertical drilling unit adjustment: 700mm, power: 30kW, speed: 2940rpm, field range constant power: 1-3, armature range constant torque: 1-35, max. drill spindle torque: 1500Nm, rated speed: 163rpm, spindle flange diameter: 200mm, quill diameter: 2000mm. Feed: 500mm/min, rapid traverse: 1200mm/min, max. feed force: approx. 34.3kN, display: 0.005mm, vertical adjustment travel: 700mm, longitudinal adjustment travel: 13000mm, transverse adjustment travel: 650mm, swivel: 85°. Clamping plate dimensions X/Y/Z: 12500mm/1000mm, guide bed dimensions X/Y: 3350mm/455mm, controls: Heidenhain TNC 310. Documentation available. An on-site inspection is possible. Nodpey Rtfzefx Akuslb

Condition: used, Special through-hole drilling machine Elind No. 04 drilling units with drill bits max. 350 mm Independent groups, positioned in pairs opposite each other so that the drill bits align Drilling stroke from 0 to 300 mm, electronically controlled No. 04 pneumatic clamps for workpiece clamping Management of the following axes: X – spindle drill 1 Y – spindle drill 2 Z – spindle drill 3 U – spindle drill 4 W – movable guide 1 Nlsdpfx Aksy Sh Hpeueb V – movable guide 2 Programmable control of drilling speed Programmable control of drill bit extraction cycles Programmable minimum piece width 200 mm, maximum 600 mm Programmable minimum piece length 220 mm, maximum 1500 mm Perimeter safety guards 6 drill bits diameter 10 mm, length 350 mm 3 drill bits diameter 12 mm, length 310 mm

Condition: good (used), Year of construction: 1997, TBT ML 200-2-850 deep hole drilling machine TECHNICAL DATA Type: M200-2-850 Number of spindles: 2 Drill carriage stroke: 850 mm Drilling method: Single-lip drilling Drilling depth with: Submersible spindle: 120 mm Sealing housing: 400 mm Sealing housing with bezel: 350 mm Spindle drive Power: 2 / 3.5 / 1.5 kW Nledpfsvca Rcsx Akujb Voltage: 140 / 350 / 350 V Speed: 14 / 11 / 6 / A Feed - own drive Feed speed: 20 - 500 mm/min Rapid traverse speed NC operation: 12 m/min Feed force: 1.5 kN Motor power: 2.2 Nm at 3000 rpm Clamping tailstock Motor power: 0.75 kW at 1000 rpm Spindle speed: 500 rpm Stroke max: 200 mm Main dimensions L x W x H: 4600 x 2500 x 2100 mm Transport weight: 3200 kg Control: Sinumerik 805 M No liability is assumed for the correctness, completeness and up-to-dateness of the information provided

Condition: like new (used), The deep hole drilling machine have 6 spindles and is in very good condition, LIKE NEW! This can be like to inspect under pressure. On request we can send you more pictures. Nedpjb Nacljfx Akujlb Number drill spindle 6 ELB and BTA drilling Min. drilling diameter 3 mm Max. drilling diameter 20 mm Max. drilling depth 1000 mm We see ourselves as a competent partner for downhole drilling, turning, milling and welding in paid labor. We will gladly make you an offer!

Condition: refurbished (used), 2-spindle deep hole drilling machine under retrofit, completely overhauled, like new after conversion. Technical Data Nledpox E U S Ejfx Akuob Drilling system: ELB system Number of drilling spindles: 2 Min. drilling diameter: 1 mm Max. drilling diameter: 8 mm Max. drilling depth: 300 mm Nominal workpiece diameter range: 5–30 mm

Condition: repair required (used), Year of construction: 1990, functionality: not functional, machine/vehicle number: 418.364.077, drilling depth: 800 mm, feed length Z-axis: 1,000 mm, total length: 4,200 mm, total width: 2,100 mm, total height: 2,800 mm, workpiece weight (max.): 500 kg, overall weight: 7,000 kg, travel distance X-axis: 800 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 1,050 mm, spindle speed (max.): 7,000 rpm, drill diameter: 25 mm, type of input current: three-phase, number of spindles: 1, feed length W-axis: 120 mm, TBT - Deep hole drilling machine, single spindle, with CNC cross table, "x/y" axes and "W" positioning slide! Control: EST - Error in CPU rack. Machine is not operational. All actuators/hardware were functional until decommissioning. The rack error occurred during the downtime after decommissioning. Njdpsyz Rd Nsfx Akuolb Power electronics/inverter: Bosch Clamping table and various accessories Dismantling preferably by the buyer; machine components (control cabinet, body, oil tank) can be placed onto machinery skates using the existing hall crane, but loading inside the hall is not possible! Dismantling and loading upon agreement. Transport exclusively by the buyer.

Condition: excellent (used), Year of construction: 2007, • Maximum possible drilling depth: 1200 mm • Maximum hole diameter: 32 mm • Minimum drilling diameter: 6 mm • Longitudinal travel (X-axis) table: 1800 mm • Cross travel (Z-axis) column: 1700 mm • Cross travel (W-axis) drilling head: 1150 mm • Vertical travel (Y-axis) drilling head: 1200 mm • Clamping surface NC table: 1500 x 1000 mm • Maximum table load: 10 t • Rotary axis (B-axis) rotary table: 360° • Rotary axis (A-axis) drilling head: -25°/+15° • Feed rate: 1-15 m/min (Y-axis: 1-10 m/min) • Rapid traverse speed in all axes: 15 m/min (Y-axis: 10 m/min) • Maximum spindle speed: 6000 rpm • Minimum spindle speed: 60 rpm • Tool holder: SK 40 • Tool clamping: OTT • Rated power main drive (100% ED, S1/40% ED, S6): 9/13 kW • Coolant tank capacity: 1000 l • Maximum coolant pressure: 100 bar • Low-pressure external and high-pressure internal coolant supply • Power supply: 3x 400 V; 50 Hz • Required installation space (L x W x H): 6550 x 5350 x 4130 mm • Machine weight: 12,000 kg Deep Hole Drilling Machine Equipment • CNC control: HEIDENHAIN iTNC 530 • Interpolated rotary table with minimal backlash, dimensions 1500 x 1000 mm • Swiveling drilling head +15°/-25° • Shank drilling head • Handwheel HR520 • Fixed supports (2 units) • Tool magazine: ELB tools: 12 pcs (max. diameter: 32 mm / max. length: 1550 mm) Standard tools: 12 pcs (max. diameter: 140 mm / max. length: 400 mm) • Direct measurement and positioning system in X, Y, and Z axes Nedpfx Aksxyf E Noujlb • Collision monitoring system for supports and drill sleeves • Oil cooler • Coolant flow control system • Adjustable coolant nozzles • Cooling unit for electrical cabinet • Enclosed upper cover (roof) • Drip tray for machine and tank facility (tray height 30 mm) • Extraction system • Infrared touch probe • Drilling depth extension 1200 mm (retrofit) • Chip conveyor

Year of construction: 2018, condition: as good as new (ex-display), Number of spindles 1 full drilling 5-40 mm Nlodpod S Ualofx Akueb Drilling depth 1.000 mm

Condition: excellent (used), Year of construction: 2012, operating hours: 79,000 h, functionality: fully functional, machine/vehicle number: 106648-11, Please provide your offer price. Sales only within Europe, including Turkey. Price excluding packaging; delivery condition: FCA (machine location). Available machines: 5 units, identical process. Year of manufacture: 2001 - 2012 ===== For technical data, please refer to the handout. All warranty rights are excluded. We do not guarantee the accuracy of the technical data and year of manufacture, the completeness of accessories and tooling, or compliance with all safety and environmental protection requirements specified in accident prevention regulations. No sale to private individuals. Nsdsxzgraepfx Akuolb

Condition: excellent (used), Year of construction: 2001, functionality: fully functional, machine/vehicle number: 106 155 - 11, (Please tell us your offer price) Sale only within Europe, incl. Turkey Nlodpfxsw Agqho Akujb Price without packaging; delivery condition: FCA (machine location) ===== Technical data see handout. All warranty rights are excluded. For the correctness of the technical data and year of construction, for the completeness of accessories and tool equipment, and for compliance with all safety and environmental protection requirements specified in the accident prevention regulations. No sale to private individuals. Sales only within Europe, incl. Turkey Price without packaging; Delivery condition: FCA (machine location) ===== Technical data please see handout in attachment. German text leading language. Without any guaranty and warranty, including completeness of tools & accessories as well as environmental and safety regulations. No private sales.

Condition: good (used), Year of construction: 2007, functionality: fully functional, drilling depth: 1,150 mm, overall weight: 12,000 kg, drill diameter: 32 mm, Heidenhain iTNC530 cnc control 12-fold tool changer Technische Daten / technical details: Wege: / travels: Nlodpfewcldajx Akueb X-Achse längs (Tisch) / X-axis longitudinal (table) 1800 mm Z-Achse quer (Ständer) / Z-axis cross (column) 1700 mm W-Achse quer (Bohreinheit) / W-axis cross (drilling unit) 1150 mm Y-Achse senkrecht (Bohreinheit) / Y-axis vertical (drilling unit) 1200 mm B-Achse (Rundtisch) / B-axis (rotary table) 360 ° A-Achse (Bohreinheit) / A-axis (drilling unit) -25 - +15 ° Bohrbereich-Tiefbohren (ELB): / drilling area-deep drilling (ELB): Durchmesserbereich / diameter range 6-32 mm max. mögliche Bohrtiefe / max. drilling depth 1150 mm Antriebsleistung / drive capacity 40 kW Gewicht der Maschine ca. / weight ca. 12000 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding. For more technical details please look at the photos

Condition: refurbished (used), Year of construction: 2019, TECHNICAL DETAILS Drilling depth: 1,400 mm Full drilling range: 40 mm Spindle speed: 670 - 3,560 rpm Center height over bed: 380 mm Center height over floor: 1,400 mm Table length: 1,200 mm Table width: 1,200 mm Cross table travel: 2 x 400 mm Center height over table: 250 – 600 mm Z-axis Feed rate: 0-7,000 mm/min W-axis - 400 mm Feed rate: 0-7,000 mm/min X-axis - 800 mm Feed rate: 0-2,000 mm/min Y-axis - 350 mm Feed rate: 0-3,000 mm/min Rapid traverse speed: 3.5 m/min Motor nominal speed: 8,000 rpm Motor rated output: 18.5 kW MACHINE DETAILS Operating voltage: 380 V Frequency: 50 Hz Connected load: 40 kW Total length: 6,500 mm Total width: 3,500 mm Total height: 2,900 mm Weight: 8 t EQUIPMENT Manufacturer: Siemens Sinumerik 840 Dsl Including 1,700 l coolant system 20 solid carbide single-lip drills, diameters 6 mm to 20 mm, lengths 1,200 mm to 1,750 mm Nledew Ekfujpfx Akuob

Condition: ready for operation (used), Drilling diameter: 3-25mm, drilling depth: 1000mm, connected load: 36kW, control: EST, 99 drilling memory positions per program, grinding and coordinate programming, plain text programming via input mask. Accessories: paper band filter, coolant cooling system, 4-door control cabinet, high-pressure pump up to 150bar, oil tank, 1 steady rest for smaller diameters at large drilling depths, direction-adjustable holder for drill bushing holders, various drill bushing holders, long clamping table for 0-height, tailstock stop and base plate for machine vice freely movable on the additional table, matching precision machine vice optionally available. Speed, high pressure, Z-axis (feed), X/Y-axes, and W-axis (approach slide) programmable via control. CPU and card rack defective (fan fault), machine therefore not operational, drives and guideways were fully functional until last operation. An on-site inspection is possible. Nedpfeylbrqox Akuslb

Condition: repair required (used), Year of construction: 1996, For sale is an IXION TL 601 deep hole drilling machine. Unfortunately, the machine is experiencing electrical problems. Constants need to be reset by a technician, and the backup battery needs to be replaced. New LCD display was recently installed. New LED display. Machine No. 950192 Year of manufacture 1996 Manufacturer: Maschinenfabrik IXION Otto Hafner -Travel paths + Quill Tl 601 (Z) 600 mm + Vertical drilling unit (Y) 300 mm + Transverse table (Table surface 1200 mm x 600 mm) (X) 700 mm + In drilling direction (W) 1000 mm Nsdpfeh Dpv Rsx Akujlb -Clamping table + Table surface (standard) 1200 mm x 600 mm + Table load (T1200) 1000 kg -Tool holder + SK 40 holder according to DIN + Pull stud 69871 According to DIN 69872 -AC main spindle drive 3.0 kW + At 100% duty cycle, S1 5.5 kW At 50% duty cycle, S6 7.5 kW +Spindle turning speed Directly programmable 100-4000 rpm Performance: +Drilling capacity in steel 2312 D 32 mm +Tapping M24 -Weight / Dimensions Weight 2500 kg Length approx. 4230 mm Width approx. 1885 mm Height approx. 1870 mm All prices plus VAT We can deliver and commission the machine. All prices plus VAT Machine Purchase / Sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality, yet affordable metalworking machine for your production? Or do you want to sell yours?

Condition: good (used), Year of construction: 2004, IXION AUERBACH IA2 TLF-1200.4 Year of manufacture: 2004 Factory overhauled: 2023 CNC control: HEIDENHAIN 430M Travel X (table, longitudinal): 1,200 mm Travel Y (deep hole drilling-milling unit, vertical): 1,200 mm Travel Z (turret, horizontal): 700 mm Travel W (deep hole drilling-milling unit, horizontal): 1,200 mm A-axis (swivel of deep hole drilling-milling unit): +25°/-15° B-axis (NC rotary table): 360° NC rotary table with 5 T-slots: 1,000 x 1,000 mm Max. workpiece weight: 7,000 kg Rated drive power (S1 / S6): 12 / 18.5 kW Torque: 115 Nm Speed range: 60 - 6,000 rpm Max. drilling depth (in one pass): 1,200 mm (with 2 traveling steady rests) High-pressure coolant system for deep hole drilling oil: 100 bar & 42 l/min Nlodpfx Ajydmuuekuob Tool changer for 24 tools With spindle air blast Max. tool length: 300 mm Max. tool weight: 3.5 kg Tool diameter Without adjacent free space: max. 90.0 mm With adjacent free space: max. 160.0 mm Equipment inside work area: - Fully enclosed working area with roof - Oil mist extraction - Chip conveyor Required floor space: 5,150 x 5,350 x 4,020 mm

Year of construction: 2007, condition: excellent (used), functionality: fully functional, IMSA DEEP HOLE DRILLING MACHINE MODEL MF 1000 BB TRAVELS: Nlodpfx Akeyft Haoueb LONGITUDINAL AXIS: 1250 mm CROSS AXIS (MILLING QUILL): 380 mm CROSS TRAVEL OF HEAD: 500 mm VERTICAL TRAVEL: 1000 mm ROTARY TABLE SIZE: 1000x800 mm TOTAL MACHINE WEIGHT: 20,000 kg

Year of construction: 2013, condition: used, controller manufacturer: Siemens, controller model: 840Dsl, _____ Description: Nledpfx Akox E Ingjusb Year of manuf. : 2013 In general: Drilling-ø (max.):3,5 mm Drilling depth (max.):200 mm Deep drilling module: Technology:Drillingspindle Speed (max.):10.000 rpm Power:3,5 kW Taper:HSK-A40 Equipment/Accessory: Chipmanagement:Chip tray Coolingmanagement:Internal cooling unit with Filter and High-pressure, 140 bar Workpiececlamping:Collet chuck, SMW Autoblok KSZ-MB-040-Z140 Oilmistseparation:Electrostatic extraction, LTA AC 500 Further Accessory:Misc. Single lip driller

Condition: ready for operation (used), Year of construction: 1986, functionality: fully functional, machine/vehicle number: 308-600-1716, drilling depth: 600 mm, spindle speed (min.): 1,423 rpm, drill diameter: 65 mm, center height: 299 mm, TECHNICAL DETAILS Boring Unit Nedpfx Aswx E N Iskujlb Boring system: BTA + Ejector Speed steps: 8 or 16 with gear change Feed range: 0 – 500 mm/min Rapid traverse forwards/backwards: 5,000 mm/min Spindle taper: DIN 55022, size 6 Main Drive Three-phase motor: 37 kW, 1,500 rpm Frequency control: available Spindle Speeds Range I: 16/180 – 200/230 – 290/330 – 370/430 rpm Range II: 550/620 – 740/800 – 990/1,120 – 1,280/1,450 rpm Feed Drive Servo motor: 10 Nm, 3,000 rpm Ball screw: MH 50 × 10 × 14 Coolant System Total power requirement: 73 kW Coolant pump: MSDA 40-R38, SMDA 80-R46 Magnetic filter candles: MFK 400 R Liquid cooler: DKL 7 Gap tube filter: 54 572 71 104 Immersion pump: TB 405/390 Centrifuge: Polar U6 MACHINE DETAILS Dimensions and Weight Machine weight: approx. 6,000 kg Paintwork Color: RAL 6011 EQUIPMENT Clamping fixture with movable drill bushing Clamping fixture with drill bushing carrier Clamping fixture with clamping table Clamping fixture with centering tailstock Clamping fixture with centering clamp ZS2 (HICO) Force measuring system KIMISIT 0 – 30 Hydraulic unit HS04-C807-6-0 Chip conveyor SEW RF 430T71D4 Centrifuge Hanning ZG 52x6K.137 Fans Dietz DR 80a 69 Lubrication pump Vogel DM7 Control unit for main and feed drives

Condition: like new (used), The machine is completely overhauled and therefore as good as new! Technical specifications Nodpfx Ajfgwlbokuelb Drilling method : single-lip drilling Number of spindles 1 Drilling range in steel D= 1-6 mm Drilling depth 420 mm Max. workpiece length 420 mm Manufacturer: TBT / SFT New electrics and new controls!

Condition: ready for operation (used), Year of construction: 2001, functionality: fully functional, drilling depth: 1,500 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,200 mm, travel distance Z-axis: 1,300 mm, rotational speed (max.): 5,600 rpm, TECHNICAL DETAILS Drilling Data Drilling depth: 1,500 mm Axis Data X-axis travel: 3,000 mm Y-axis travel: 1,200 mm Z-axis travel: 1,300 mm X-axis feed rate: 15 m/min Y-axis feed rate: 15 m/min Z-axis feed rate: 15 m/min Feed force: 30,000 N Rapid traverse speed: 15 m/min Spindle Data Nlsdpfsw Izr Asx Akuob Speed: min. 300 rpm Speed: max. 5,600 rpm Table Data Clamping surface: 2,000 mm x 1,250 mm Number of T-slots: 7 Table load capacity: 12,000 kg Tool holder: SK50 MACHINE DETAILS Control: TNC430 Dimensions & Weight Dimensions (L x W x H): 8,400 x 8,300 x 4,500 mm Total weight: 30,000 kg EQUIPMENT Stepless speed adjustment Drill bit grinding machine Note: Dismantling and loading can be offered for €8,000.

Condition: excellent (used), Year of construction: 2008, The deep hole drilling machine is in a very good condition! Deep hole drilling machine type TBM 120-2000 Drilling system BTA Drilling range full drilling 30-130 mm Max. boring 200 mm Max. drilling depth 2000 mm Drill spindle box with two-stage gear, electrically switchable. Optional rotating / stationary tool Main spindle box (tailstock) with two-stage gear, electrically switchable Tailstock with counter-rotation Optionally with or without counter-rotation Hydraulic jaw chuck On request we will be happy to send you more pictures. Nlodpfjhwhx Hjx Akuob