Used 5 Axis Milling Center for sale (70,719)

Condition: good (used), Year of construction: 2010, Ref. -No.: 10287 Manufacturer: DMG Type: DMC 210 FD Year of construction: 2010 Type of control: CNC Control: Heidenhain Mill Plus Storage location: Halberstadt Country of origin: Deutschland X-Travel: 2100 mm Y-Travel: 2100 mm Z-Travel: 1250 mm Machine length: 11.000 mm Machine width: 5.000 mm Machine Height: 3.500 mm Max. Workpiece diameter: 2500 mm Hjdpfsym I U Isx Ahvoi Max. Workpiece Weight: 6.000 kg Max. rotary table diameter: 1.850 O Table speed range: 250 min/-1 Tool Taper: HSK-A100 Tool Piece Magazine With: 183 Pcs./pcs. Spindle Speed: 12.000 RPM Max. Torque On The Boring Spindle: 288 Nm Max. Torque: 2.000 Nm Feed Speeds X/Y/Z Axis: 30.000 mm / min Max. Workpiece height: 1.460 mm axes: 5 Further information: Turning and milling center incl. pallet changing system Gear spindle Coolant treatment system, with belt filter, 710 x 50mm 1 Knoll 600S2 chip conveyor 2 Losma oil mist extraction units 1 steel platform (storage space for clamping device): 5,300 x 2,900 mm - Axes renewed 11.2024 - New encoder, electrical components renewed - Geometry protocols available Machine is still in production and under power. The machine can be viewed at any time by appointment.

Condition: used, Year of construction: 2016, x-travel 450 mm y-travel 600 mm z-travel 330 mm Hsdpfx Aoym D D Ejhvji a-axis +/-135 0 c-axis 360 0 control Siemens 840 D SL weight of the machine ca. 9000 kg

Year of construction: 2012, condition: like new (used), Parts shown by hand not come. With machine come tool holders SK 40. Hodelpcdwepfx Ahvji

Condition: used, Year of construction: 2010, travel -x axis 1.000 mm travel -y axis 510 mm Hjdpfx Ahsx R U Rxevji travel -z axis 480 mm travel of - x axis (rotary-tilting table) 420 mm travel - x axis (fixed machine table) 450 mm control HEIDENHAIN iTNC 530 turning speed range 50 - 12.000 U/min numbers of positions in the tool changer 20 tool taper SK40 table surface area 650 x 510 mm workpiece weight 300 kg Clamping surface of rotary-tilting table 420 mm workpiece weight 200 kg speeds of rotary table 30 U/min 5-axis machining center | HEDELIUS - RS505 K IC 40/530/450/420/12, equipped with tool changer, ITC, zero-point clamping system and chip conveyor. In addition, the machine features a full enclosure and an extraction system with filter unit. With only 9,787 spindle hours, the unit shows low operating time. The machine is in a well-maintained condition and can be inspected at any time under power. A machine video can be provided on request. Please refer to the offer attachment for further technical details. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: RS505 K IC 40 | RS-505 | RS 505

Condition: used, Year of construction: 2006, functionality: fully functional, machine/vehicle number: 127728, Okuma MULTUS B300 5-Axis CNC Turning and Milling Center (2006) Hedpfjx Ap A Dex Ahvsi Okuma OSP-P200L controls Renishaw Probe Chip Auger Under maintenance / parts missing Sublocation - Building 3

Condition: used, CNC 5-Axis HMC – Horizontal Machining Center, Milling Center, Manufacturing Center Manufacturer: LICON Model: Liflex 1266 PC B1 Year of construction: 2016, Commissioned: 2017 Equipped with SIEMENS 840D SL (Solution Line) CNC path control, with 5 simultaneously controlled axes Travel paths X: 1200 mm, Y: 660 mm, Z: 650 mm A-axis as swivel bridge +/– 135° (270°) B-axis 360° continuous Axis acceleration X + Y-axis 6 m/s² Axis acceleration Z-axis 9 m/s² Feed force X + Y-axis 7500 N Feed force Z-axis 10000 N Positioning tolerance (X/Y/Z) 0.008 mm A-axis swivel speed 180° rotation in 4 sec. Interference diameter on the swivel bridge max. 1400 mm Transport load on the swivel bridge max. 700 kg Tool holder HSK 63 Spindle speed max. 12,000 rpm, stepless Spindle power 37kW at 40% duty cycle Spindle torque at 40% duty cycle 85 Nm Maximum spindle torque 100 Nm Tool change time (chip-to-chip) approx. 3.7 sec. Tool diameter with adjacent slots occupied Ø 140 mm Tool diameter with adjacent slots free Ø 250 mm Maximum tool length 400 mm Maximum tool weight 20 kg Power supply 400 Volt, 50 Hz Connected load 80 kVA Compressed air connection 5-8 bar - LIFLEX MSP 80/63/85/12,000 motor spindle (output 37kW/40% duty cycle) with liquid cooling and recooling unit - 2-axis rotary tilting table LICON as B- and C-axis, with hydraulic axis clamping - Zero-point clamping system on the swivel axis turntable - Dual pallet changer, without pallets (these need to be newly sourced) Hsdpfx Aot Ac Efehvsi - Media transfer of 5 single-action pressure lines for oil or air, for workpiece clamping on the pallets Hydraulic functions from 30-150 bar, with pressure monitoring (controllable via M-functions) - Tool changer with 30 tool positions, disc turret type - Machine designed for dry machining with minimal quantity lubrication (MQL) system - MQL-TSC, internal MQL lubrication supply through the spindle - Scraper belt chip conveyor, discharge height 1150 mm - Licon ECO-Mode (energy-efficient aggregate operation) - Direct linear measurement system on all axes - Operating hours (control voltage on) ≈ 7,500 h Space required for operation L x W x H 9,000 x 5,000 x 3,800 mm Space required for transport L x W x H 6,100 x 4,400 x 3,600 mm Base machine weight approx. 21 tons Total weight: approx. 24 tons Very good condition

Condition: good (used), Year of construction: 2008, 5-axis CNC machining centre Manufacturer: Willemin Model: W 408 MT Hsdpfx Ahexdmw Uevji Year of manufacture: 2008 Operating hours: approx. 93,500 h Control: Fanuc Series 16i MB Max. workpiece diameter: 32 mm Spindle speed: max. 30,000 rpm Spindle interface: HSK-E40 48-position tool changer 5 axes + gripper Travel paths: X 250 / Y 200 / Z 300 mm + Bar feeder LNS Hydrobar Express 332 + Coolant filtration system + Oil cooling / spindle cooling + High-pressure internal coolant (IKZ) Since 2017, approximately EUR 30,000 has been invested in repair and maintenance.

Condition: excellent (used), Year of construction: 2016, x-travel 950 mm y-travel 850 mm z-travel 650 mm Control HEIDENHAIN TNC 640 spindle turning speed range 20000 U/min tool taper HSK-A 63 coolant IKZ 40 bar swivable table: 850 x 750 mm c-axis 360° tool change unit 60 Pos. weight of the machine ca. 14 t This DMG DMU 95 monoBLOCK is in very good condition and is available immediately: ACCESSORIES included: - 75 HSK-A63 chucks - Tool trolley Hjdjvwgrpjpfx Ahvei - SCHUNK zero point system with: 1 base plate 4 interchangeable tables (plates) 1 vice plate 16 columns Technical data: Clamping surface table C-axis: 850 x 750 mm Clamping surface rigid table: 1,000 x 750 mm Control: 3D control HEIDENHAIN TNC 640 Spindle speed: 20,000 rpm Spindle power: 35 kW (40% ED) / 25 kW (100% ED) Tool holder: HSK-A 63 according to DIN 69893 Tool changing device: Double gripper Magazine slots: 60 (chain magazine) Connected load: 50 kVA Coolant system IKZ: 40 bar / 23 l/min through spindle centre (AD) External coolant supply: 4 bar / 40 l/min EQUIPMENT and DESCRIPTION - MPC Machine Protection Control chip tray with integrated coolant tank 500 l - Scraper belt chip conveyor with coolant system 600 litres, paper belt filter - Infrared measuring probe HEIDENHAIN TS 649 - 3D quickSET extension package - Coolant ring nozzle for vertical headstock, 15 water nozzles, 5 air nozzles - Flushing gun with pump 2 bar / 40 l/min - Cooling device Blast air through spindle centre, selectable via M function - Operating mode 4 - Manual intervention with open work area doors - Documentation

Condition: used, Year of construction: 2009, x-travel 500 mm y-travel 250 mm z-travel 400 mm CNC-control Mitsubishi M70 Table dimensions Ø 250 mm max. table load 60 kg spindle taper HSK 63 spindle turning speed range 20 - 12.000 U/min spindle motor 7,5 kW feed range max. 10.000 mm/min rapid traverse 48 / 60 / 72 m/min tool change unit 24 Pos. coolant IKZ voltage 400 V c-axis 360 0 b-axis ° total power requirement 25 kW weight of the machine ca. 5,0 t Hedpfx Ahexq Hgievoi dimensions of the machine ca. 1,90 x 2,70 x 2,85 m chip conveyor 2,00 x 0,60 x 1,65 m coolant tank 1,60 x 1,20 x 0,60 m - Serial No.: RM10090 Axis CNC-Control (5-side machining with single clamping) – Internal coolant through spindle TSC – electronic hand wheel – Spindel oil chiller – working light – Central lubrication

Condition: used, Year of construction: 2017, x-travel 620 mm y-travel 520 mm z-travel 460 mm CNC-control iTNC 640 HEIDENHAIN Table dimensions Ø 650 mm max. table load 300 kg spindle taper SK 40 spindle turning speed range 12.000 U/min feed range 1 - 20.000 mm/min rapid traverse 36 m/min coolant IKZ 30 bar voltage 400 V total power requirement 25 kW weight of the machine ca. 9,2 t dimensions of the machine ca. 2,35 x 4,15 x 2,95 m chip conveyor 2,60 x 1,65 x 1,20 m Oil cooler 0,50 x 0,70 x 1,45 m Hedpfx Ahep S Db Ssvji water cooling unit 0,70 x 0,70 x 0,80 m - Serial-No.: 6LUD00185 - Control ON: 10.918 h - Spindle ON: 2.725 h - Control: HEIDENHAIN iTNC 640 - 3-D touch probe HEIDENHAIN TS 740 - Travel distance B-Axis 50º/+110º,C-Axis 360º - Internal coolant supply through spindle 30 bar - Electr. handwheel - Laser tool measurement - chip conveyor - suction

Condition: used, Year of construction: 2018, x-travel 620 mm y-travel 520 mm z-travel 460 mm c-axis 360 ° b-axis -50 / +110 ° distance spindle nose and table 170 - 630 mm CNC-control iTNC 640 HEIDENHAIN Table dimensions Ø 650 mm max. table load 500 kg spindle turning speed range 12.000 U/min drive capacity - spindle motor 15,5 / 33,0 kW rapid traverse 48 m/min tool change unit 48 Pos. SK 40 coolant IKZ 30 bar voltage 400 V total power requirement 35 kW weight of the machine ca. 10,0 t dimensions of the machine ca. 4,00 x 2,46 x 2,85 m chip conveyor 2,90 x 0,50 x 1,30 m coolant tank 2,30 x 1,70 x 0,45 m coolant pump 0,60 x 0,50 x 0,90 m Oil cooler 0,55 x 0,60 x 1,10 m Hodpoxap Eaefx Ahvoi 5-axis simultaneous machining center - Serial-No.: 9496-117 - Control ON: 10,137 h - Spindle ON: 3,380 h - Control: HEIDENHAIN iTNC 640 - electr. handwheel - IKZ 30 bar - chip conveyor

Condition: excellent (used), Year of construction: 2007, operating hours: 36,900 h, functionality: fully functional, travel distance X-axis: 650 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, controller manufacturer: Heidenhain, controller model: 530, spindle speed (max.): 28,000 rpm, 5-axis machining center Manufacturer: Hermle Model: C30U Year of manufacture: 2007 Control: Heidenhain iTNC-530 Power-on hours: approx. 36,900 h Operating hours: approx. 10,760 h S/N: XXXXX Technical parameters: ----- • Travel X-Y-Z: 650 x 600 x 500 mm • C-axis: 360° • A-axis: +/-115° • Tilting rotary table Ø280 mm • 6x rotary union • Spindle: 28,000 rpm • Tool magazine: 32x HSK-A63 • Standard coolant system • 3D probe Renishaw • Option: Air blast through spindle • Option: Glass scales with purge air • Option: Electronic thermal compensation • Chip tray • Weight: 9,500 kg Accessories: ----- Hodpfx Ahoynb S Nsvoi • Documentation • Rinsing gun • Handwheel • Holder package: 20x HSK-A63 tool holders

Condition: excellent (used), Year of construction: 2011, operating hours: 25,870 h, functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 500 mm, travel distance Z-axis: 500 mm, controller manufacturer: Heidenhain, controller model: 530, spindle speed (max.): 18,000 rpm, 5-Axis Machining Centre Hedpfx Ahjynb Spsvoi Manufacturer: DMG Model: DMU-60 Evo Control: Heidenhain iTNC-530 Year of manufacture: 2011 Operating hours: 25,870 h Spindle hours: 7,250 h S/N: 154XXXXX Technical Data: ----- • Travels X-Y-Z: 600 / 500 / 500 mm • Rotary table: 600 x 500 mm • Spindle: 20 - 18,000 rpm (130 Nm) • Tool magazine: 30x HSK-A63 • Option: 3D probe TS-641 • Option: Laser bridge for tool measurement • Option: Chip conveyor • Weight: 10,000 kg Accessories: ----- • Manuals • Rinsing gun • HSK-A63 holder package (20 pcs.) • 3D Quickset

Condition: excellent (used), Year of construction: 1998, operating hours: 54,400 h, functionality: fully functional, travel distance X-axis: 500 mm, travel distance Y-axis: 380 mm, travel distance Z-axis: 400 mm, controller manufacturer: Heidenhain, controller model: 426, spindle speed (max.): 30,000 rpm, 5-axis machining center Manufacturer: DMG Model: DMU-50V Year of manufacture: 1998 Control: Heidenhain TNC-426 Power-on hours: approx. 54,400 h Spindle hours: approx. 12,900 h S/N: XXXXX Technical data: ----- - Travel X-Y-Z: 500 x 380 x 400 mm - NC rotary/swivel table 360° / 500 x 380 mm Hedsynb Iqepfx Ahvei - Spindle: 30,000 rpm - Tool holder: HSK-50 - Tool magazine: 24 stations - Coolant system - Chip conveyor: no - Automatic tool measurement - Connected load: 26 kVA - Weight: approx. 4.0 t Accessories: ----- - Manuals - Electronic handwheel - 20x HSK-50 tool holders

Condition: good (used), Year of construction: 2009, Ref. -No.: 10625 Manufacturer: DMG Type: DMC 125 FD duoblock Year of construction: 2009 Type of control: CNC Control: Siemens Sinumerik 840 D Storage location: Halberstadt Country of origin: Germany Machine-No.: 1166XXXXX X-Travel: 1250 mm Y-Travel: 1250 mm Z-Travel: 1000 mm Hjdpfjym Nglsx Ahvoi B-Axis: 360 ° C-Axis: 360 ° Spindle Taper: HSK-A100 Max. Workpiece diameter: 1250 mm Max. Workpiece Weight: 2000 kg Max. Tool Length: 500 mm Max. Tool Diameter: 400 mm Table speed range: 800 min/-1 Tool Piece Magazine With: 180 Pcs./pcs. Spindle Turning Speed - Stepless: 10000 RPM Max. Workpiece height: 1600 mm Rapid Travel X/Y/Z: 60000 mm / min Further information: - Pallet system with 6 pallets + 1 pallet (spare pallet – new – packaged) The machine can be inspected under power.

Condition: good (used), Year of construction: 2008, Ref. -No.: 10581 Manufacturer: HEDELIUS Type: RS 80 Magnum Year of construction: 2008 Type of control: CNC Control: HEIDENHAIN iTNC 530 Storage location: Halberstadt Country of origin: Germany X-Travel: 945 mm Y-Travel: 800 mm Z-Travel: 600 mm Hodsym Nc Tspfx Ahvsi C-Axis: 360.000 x 0,001 ° Spindle Taper: ISO 40 Table Load: 600 kg Tool changer: 30 fach Spindle Speed: 10 - 8000 RPM Drive Capacity - Spindle Motor: 27 kW Total Power Requirement: 55 kW Weight Of The Machine Ca.: 16 t A-axis (swivel axis): ° Table clamping area: 800 x 630 mm Further information: - Pendulum machining with swivel rotary table and fixed machine table - Coolant system, chip conveyor - Complete housing The machine can be viewed under power by arrangement.

Condition: good (used), Year of construction: 2010, Ref. -No.: 10530 Hedpfxsym Ncto Ahvji Manufacturer: DöRRIES - SCHARMANN Type: Alpha 1000 Year of construction: 2010 Type of control: CNC Control: Siemens SINUMERIK 840 D Storage location: Halberstadt Country of origin: Deutschland X-Travel: 2000 mm Y-Travel: 2000 mm Z-Travel: 2000 mm A-Axis: 0 - 90 x 0,001 ° B-Axis: 360 x 0,001 ° Number of T-slots: 1 + 8 Max. Workpiece Weight: 5000 kg T - groove width: 22 mm T - slot spacing: 100 mm T-Slots: DIN 650 mm Tool Taper: HSK - A 100 Tool Piece Magazine With: 207 + 10 Pcs./pcs. Max. Torque: 1250 Nm Feed Speeds X/Y/Z Axis: 1 - 30000 mm / min Rapid Travel X/Y/Z: 30,00 mm / min Drive Capacity - Spindle Motor: 45 kW Total Power Requirement: 100 kW Dimensions Of The Machine Ca.: 13 x 8 x 4,5 m Size Of Pallet: 2 x 1000 x 1000 mm Spindle speed gear stage 1: 1 - 1096 1 / min Spindle speed gear stage 2: 1096 - 6000 1 / min Further information: - Measuring probe - Chip conveyor - Coolant system - Coolant through the spindle - Pallets with 5-way media connection and clamping hydraulics - Extraction system - Swivel spindle A-axis 0 - 90 - NC rotary table B-axis

Condition: good (used), Year of construction: 2000, Ref. -No.: 10468 Manufacturer: DECKEL MAHO Type: DMU 80 Year of construction: 2000 Control: Heidenhain Millplus Storage location: Halberstadt Country of origin: Japan Machine-No.: 111xxxxx X-Travel: 800 mm Y-Travel: 700 mm Z-Travel: 600 mm Number of T-slots: 9 / 14 Clamping Area: Ø 900 x 630 mm T - slot spacing: 63 mm Tool Taper: SK 40 Tool changer: 30 Spindle Speed: 12.000 RPM Max. Torque: 2659 Nm Operating hours: 67.452 H Center hole: Ø 50 mm Holding torque: 4500 Nm Max. rotation of the table top: 10,7 rpm Feed: 3600 °/min. Hodpeym Nb Aefx Ahvoi Resolution of the measuring system: 0,001 ° NC rotary table: 800 kg NC swivel rotary table: 600 kg Further information: - Clamping table 900 x 630 mm - Chip conveyor, sheet metal technology - Belt filter system, manufacturer Interlit - Type SK 200-760 - Oil mist separator - Set of tool holders, - Workbenches - 2x 6 drawers - Vise - Jaw width 125 mm - Roller shutter cabinet with 1 door The machine can be viewed under power by arrangement.

Condition: good (used), Year of construction: 2002, 5-axis CNC machining center Manufacturer: AXA Machine Model: VPC 50 U Control: Siemens Year of manufacture: 2002 Number of controlled axes: 5 Gantry design TECHNICAL DATA Travel ranges Hedpfx Ahjymw Tgsvji - X-axis: (mm) 2,300 - Y-axis: (mm) 1,200 - Z-axis: (mm) 700 Spindle: Swiveling spindle - Swivel range (degrees): 90 (0.001) - Speed range (rpm): 30–7,500 Tool magazine - Tool holder: SK50 Machine table - Table size, fixed table L x W: (mm) 1,100 x 1,100 - Diameter of built-in rotary table: (mm) 1,100 x 1,100 Technical data and information subject to change and errors excepted.

Condition: good (used), Complete specifications are shown in the photos of the listing. CNC HEIDENHAIN 426 Machine in good working condition, videos available upon request. Hedpfeymgd Iex Ahvei

Condition: excellent (used), Year of construction: 2021, machine/vehicle number: NC 1487, functionality: fully functional, travel distance X-axis: 4,850 mm, travel distance Y-axis: 1,970 mm, travel distance Z-axis: 880 mm, workpiece length (max.): 4,200 mm, workpiece width (max.): 1,600 mm, workpiece height (max.): 500 mm, number of axes: 5, number of slots in tool magazine: 24, controller manufacturer: OSAI, table length: 4,000 mm, table width: 1,500 mm, Equipment: CE marking, documentation/manual, We are offering this very well-maintained COSMEC 515 Conquest 5-axis machining center, year of manufacture: 2021. Manufacturer: COSMEC Model: 515 Conquest Year: 2021 Condition: Very good Machine type: 5-axis machining center Vacuum grid table Vacuum pump: 250 m³/h 5-axis fork head, spindle 18 kW, liquid cooling, HSK63F C-axis: +/- 360 degrees Tilting axis: +/- 110 degrees Speed: 500–24,000 rpm NC-controlled extraction hood 2 units of 12-position tool changers traveling in X and Y axes Automatic tool length measurement Bumper safety system Compressed air requirement: 7 bar Control cabinet with air conditioning unit Mobile control panel Central lubrication Hodpfxoynhn De Ahvsi If you have any questions or require further information, please feel free to send us a message or give us a call.

Condition: used, CNC 3+2 axis vertical machining center DECKEL MAHO type DMU 35 M CNC control SIEMENS 810D with ShopMill Manufacturer no. 11065353554 Year of manufacture 2001 Travel paths: X: 350 mm, Y: 240 mm, Z: 340 mm Table movements: C-axis: 360° Swivel range: +105° / -15° Universal swivel - rotary table: 400 x 290 mm, center hole 30H6 Table load: max. 100 kg Distance spindle nose - table: min. 145 mm to max. 485 mm Hjdpfovt D D Usx Ahvei Feed rate: 5,000 mm/min Rapid traverse (X / Y / Z): 5 m/min Input resolution: 0.01 mm Total power requirement: 15 kVA Speed range - main spindle: 20 - 6,300 min/-1 Drive power - main spindle: 6.3 / 10 kW (100% / 40% ED) Torque: max. 55 / 80 Nm Tool holder: SK 40 DIN 69871 Pull bolt: DIN 69872 or ISO 7388/2 Type B Interface: Serial RS232C, LAN (RJ45) Power connection: 400 volts, 50 Hz, 15 kVA Compressed air connection: 6 bar - CNC control Siemens Sinumerik 810D with ShopMill V05.03.22, NCU 03.03.34-CCU1E, MMC103 - 3-axis controlled (X, Y and Z axis) - Manual swivel rotary table, C axis = table rotation 360°, B-axis = swivel range +105°/ -15° - direct path measuring system for all 5 axes - electronic handwheel - spindle drive via servo motor with toothed belt and 2 gear stages - fully protected cabin with sliding door - swiveling control panel - coolant nozzles on the vertical head - chip tray with coolant container and cooling lubricant pump - work area lighting - documentation available space requirement L x W x H 2000 x 2000 x 2100 mm weight 1750 kg good condition

Condition: good (used), Year of construction: 2008, X/Y/Z 600/770/805mm, spindle 12,000 rpm / HSK 63, ATC 40, swivel table unit (A'-axis), rotary table with T-slots (B'-axis) through spindle cooling, all machines with coolant tank, Chip conveyor and belt filter system, CNC Heidenhain iTNC 530; Control: CNC Heidenhain iTNC 530 Hjdpoh Hlmcofx Ahvei

Condition: excellent (used), Year of construction: 2022, functionality: fully functional, operating hours: 3,100 h, travel distance X-axis: 15,600 mm, 5-axis machining center X-axis stroke 15600 mm Y-axis stroke 1400 mm Z-axis stroke 700 mm A+C axis (HS 300 milling head) HSK 11 kW electrospindle 12-position tool magazine 450 mm diameter blade magazine 12 independent automatic vices Cut and separate option Hjdpfov S Iubox Ahvoi

Condition: excellent (used), functionality: fully functional, Working area: 4840 mm x 1500 mm Electrospindle: 12 kW, ISO 30 Automatic tool changer: 8 positions Blade diameter: 250 mm Pendulum machining Number of vacuum pumps: 2, capacity: 300 m³/h Hodpoyinp Njfx Ahvoi