Used Dmg Universal Machine Center for sale (70,592)

Condition: ready for operation (used), Year of construction: 2018, Universal Machine Center 5 axis simultaneous DMG DMU 50 Year 2018 Travel X500 Y450 Z400mm Heidehhain iTNC530 Swivel Rotary Table Ø630x500mm NC B axis -5 to 110 degree NC C axis 360 degree x 0.001 Nwjdpfx Abszvlglsgok Spindle 18,000 rpm ATC 16, SK40 taper Direct Measuring X,Y & Z axis Electronic Handwheel

Condition: good (used), Year of construction: 2025, Universal machining center Machine type: DMG Mori DMX 60 U Control: Siemens Sinumerik One mit Celos X Year: 2025 SPECIFICATIONS Amount of controlled axes: 3+2 X-Axis: 600 mm Y-Axis: 600 mm Z-Axis: 510 mm B-Axes: -15°/+110° C-Axis: 360° Rapid motion: (X/Y/Z): 42 m/min. Spindle speeds: 20 -15.000 rpm Spindle power: 20 / 14,5 kW Torque: 121 Nm Tool: SK 40 Tool capacity: 60 NC-panning and rotary Table Table size: 630 x 500 mm Equipment Nodpfx Abszu R D Tegowk Chip conveyor Production Package Internal cooling: 40 bar Cooling tank: 600 l paper band filter Electronical handwheel Direct linear scales Preparation for Hydraulic and Pneumatic Connections Air blow Oil mist separator Caliper: Renishaw PP40 3D-Touch probe: 3d quickSET Working mode: 4

Condition: excellent (used), Year of construction: 2022, functionality: fully functional, travel distance X-axis: 3,600 mm, travel distance Y-axis: 1,100 mm, travel distance Z-axis: 900 mm, controller model: HEIDENHAIN TNC 640 CELOS, rotational speed (min.): 20 rpm, rotational speed (max.): 10,000 rpm, DMG MORI DMF 360|11 linear – Traveling Column Milling Machine For sale is a DMG MORI DMF 360|11 linear with extensive equipment and a HEIDENHAIN TNC 640 / CELOS control system. Technical data Travel ranges X-axis: 3,600 mm Y-axis: 1,100 mm Z-axis: 900 mm Rapid traverse rate X/Y/Z: 80 / 60 / 60 m/min Linear drive in the X-axis Milling head / Spindle NC swivel milling head, B-axis Spindle speed: 20 – 10,000 rpm Spindle power: 44 / 32 kW Torque: 288 / 187 Nm Tool holder: SK50 / DIN ISO 7388-1-A50 Tool magazine 120 tool positions Chain magazine with dual gripper Mechanical setup aid for tool loading Work table Fixed table with integrated rotary table Rotary table: Ø 1,050 mm Rotary table arranged on the left side Max. load capacity of rotary table: 1,200 kg Hydraulic clamping Control system HEIDENHAIN TNC 640 CELOS 21.5" ERGOline® Control Multi-touch screen Equipment / Options Internal coolant supply 40 bar / 980 l Paper band filter Chip conveyor HEIDENHAIN TS 460 infrared measuring probe Preparation and software option for 3D quickSET MPC – Machine Protection Control Compressed air through the spindle center Oil and emulsion mist extraction system, 2 × 1,600 m³/h 2 rotating viewing windows Purge air for linear measuring systems Direct measuring systems Active cooling for main spindle and linear motor Automatic door drive Electronic handwheel IoTconnector Nwedpozv Egljfx Abgok Machine Data Connector (OPC UA / MTConnect / MQTT) NETservice Machine can be inspected by arrangement. Further information, photos and videos available on request.

Condition: used, Year of construction: 2022, functionality: fully functional, DMG MORI DMF 360/11 linear – Universal machining center, year of manufacture 2022, in excellent condition, always maintained on schedule, available for inspection at any time. Key technical data: Control system: Heidenhain TNC 640 Celos, 5 controlled axes Travel ranges: X 3,600 mm / Y 1,100 mm / Z 900 mm Rapid traverse rate X/Y/Z: 80/60/60 m/min Nwjdezv U N Nepfx Abgjk Spindle: 20–10,000 rpm, 44/32 kW, 288/187 Nm, SK 50 NC rotary table: 4,200 x 1,100 mm, max. table load 1,200 kg Tool magazine: 120 positions Equipment: Internal cooling 40 bar, chip conveyor, measuring probe Heidenhain TS 460, automatic doors

Condition: good (used), Year of construction: 2022, Universal machining center Machine type: DMG DMF 360 / 11 linear Control: Heidenhain TNC 640 Celos Year: 2022 Nwsdpfszizcijx Abgek SPECIFICATIONS Travel X-Axis: 3.600 mm Y-Axis: 1.100 mm Z-Axis: 900 mm B-Axes C-Axis Amount of controlled axes: 5 Dynamikpaket für DMF 360 linear (Y1100) Rapid motion: (X/Y/Z): 80 / 60 / 60 m/min. Spindle speeds: 20 - 10.000 rpm Spindle power: 44 / 32 kW Torque: 288 / 187 Nm Tool: SK 50 Toolchanger Tool capacity: 120 NC rotary table Table size: 4.200 x 1.100 mm Max. Table Load: 1.200 kg Equipment Internal cooling: 40 bar Cooling tank: 980 l Chip conveyor Chip rinsing pistol Oil mist separator Air blow Caliper: Heidenhain TS 460 Vorbereitung für den Einsatz 3D quickSet Automatic doors Electronical handwheel

Condition: reconditioned (used), Year of construction: 2007, operating hours: 16,000 h, functionality: fully functional, travel distance X-axis: 750 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 520 mm, rapid traverse X-axis: 24 m/min, rapid traverse Y-axis: 24 m/min, rapid traverse Z-axis: 24 m/min, controller manufacturer: Siemens, controller model: 840D, rotary table diameter: 800 mm, spindle speed (max.): 14,000 rpm, coolant supply: 20 bar, input voltage: 400 V, DMU 70 3+2 axes The machine is currently being overhauled. New spindle New Y & Z axis guides Bellows Inspection windows Measured with BallBar incl. protocol Siemens 840D with Shopmill - handwheel 14,000 rpm SK40 spindle 30-position tool changer Internal coolant 20 bar Tank system with band filter 600 l Chip conveyor Nodpfx Aoyx Am Rsbgewk Cabin roof Measuring probe Rinse gun Operating mode 4 Documentation Available from 04/2026

Condition: used, Year of construction: 2012, total height: 4,500 mm, total length: 8,000 mm, total width: 6,000 mm, overall weight: 50,000 kg, Machine No.: 11720001123 Control Heidenhain iTNC 530 HSCI (3D path control) Travel Paths X: 1,850 mm Y: 2,100 mm Z: 1,250 mm B-axis: controlled universal swivel milling head C-axis: NC rotary table Ø 1,700 mm 5-axis simultaneous machining Spindle Motor spindle SK50 Speed: 20–12,000 min⁻¹ Power: 44 kW (40% duty cycle) / 32 kW (100% duty cycle) Torque: 288 / 187 Nm Nsdpjzv A Aksfx Abgjwk Tool holder: SK50 according to DIN 69871 Tool Changer 60-fold chain magazine Double gripper Equipment IKZ 40 bar Chip conveyor Tool measurement system Blum Laser NT Hybrid Heidenhain TS 640 infrared probe Electronic handwheel Minimum quantity lubrication (MQL) Oil/emulsion mist separator Coolant through spindle Coolant tank 980 l Rotating viewing window 3D quickSET Machine Protection Control (MPC) Adaptive Feed Control (AFC) ATC (Application Tuning Cycle) DMG MORI NetService DMG MORI SMARTkey Documentation and electrical schematic (German) Travel X-axis: 1850 - mm Dimensions (LxWxH) approx.: 8000 x 6000 x 4500 mm Travel Y-axis: 2100 - mm Weight approx.: 50,000 kg Travel Z-axis: 1250 - mm Year of construction: 2,012 Condition: in working order Terms of payment: 100% prepayment before pick-up Terms of delivery: EXW EX Works under power: Yes

Condition: excellent (used), Year of construction: 2014, HEIDENHAIN iTNC 530 control with A + C axis Working travels 200 x 200 x 280 mm Table swivelling -10°/+130° Table rotating 360° Spindle taper HSK E-32 Spindle speeds -42'000 rpm tool changer 60 pos. Cooling through spindle 3D measuring tracer Laser tool setting system Nodpfx Abjzbrl Hsgewk Tool breakage control system Zero point clamping system System 3R Misc. accessories MARCELS MASCHINEN CH

Condition: good (used), Year of construction: 2013, Traverses X Y Z; 500 x 450 x 400mm, table size 630 x 500mm, table load 200 kgs, B axis -5/+110 degrees, C axis 360 (0.001 degrees), spindle speed 12,000rpm, Njdpfxezicmpe Abgjwk spindle taper Iso 40, 30 station ATC, Siemens 840D control, swarf conveyor.

Condition: excellent (used), Year of construction: 2014, operating hours: 11,440 h, DMG 5 axis Simultaneous HSC 30 Linear Year 2014 Heidenhian TNC640 Control Travel X320 / Y 300 / Z280mm B axis +/- 120 degree C axis 360 x 0.001 degree HSK-E40, 40,000rpm Swivel rotary table Touch Probe BLUM Tool Measuring system 3D Quick Set Application Tuning Cycle Air Blast through spindle Super Fine filter system c/w tooling Nsdpfxew Hxiwo Abgewk ----- Clearance Sales -----

Condition: like new (used), Year of construction: 2012, functionality: fully functional, travel distance X-axis: 2,600 mm, travel distance Y-axis: 1,100 mm, travel distance Z-axis: 900 mm, total height: 3,300 mm, total length: 9,000 mm, total width: 6,000 mm, overall weight: 28,000 kg, number of slots in tool magazine: 60, Equipment: chip conveyor, 5-axis machining centre DMG DMF 260-11 Year of manuf. 2012 Control Heidenhain iTNC 530 Speed [rpm] 10000 Movement X/Y/Z [mm] 2600/1100/900 Tool holder SK50 Spindle Speed 10.000 U/min Power 44 kW Njdpfozucm Hjx Abgowk Torque 288 Nm Taper SK 50 Media feed-through Blast air, Coolant 4. NC-Axis Technologie NC-Swicel head Stroke +/- 100° Clamping Hydraulic 5.NC-Axis Technolgie NC-Round table Stroke 360° Diamenter 1.050 mm Clamping Hydraulic Load capaity 1.200 kg Tool magazin 60 stations Rapid travers 40 m/min Chip managment Chip conveyor Coolant mangament Coolant through spindle, 80 bar Positioning sensor Direct scale in all Axis Workpiece measurment Touch probe, Heidenhein TS 649 Oil mist seperator: Media feed-through spindle Blast air, Coolant Process observation Operation mode 4

Condition: good (used), Year of construction: 2007, Universal machining center Machine type: DMG DMC 60 T RS 3 Control: Siemens 840 D Year: 2007 new spindle: 2025 Neue B-Achslager Geometrieprotokoll vorhanden Neue Scheibe Neuer Klemmring SPECIFICATIONS 5-axis-simultaneous Travel X-Axis: 780 mm Y-Axis: 560 mm Z-Axis: 560 mm B-Axes: ° C-Axis Panning head Nwodpezi Dy Rjfx Abgjk Spindle speeds: 12.000 rpm Tool: SK 40 Toolchanger: Kettenmagazin / chain magazine Tool capacity: 180 Tool lenght: 315 mm NC rotary table Palett size: 630 x 500 mm Palett system Amount of paletts: 5 Equipment Chip conveyor cooling system Internal cooling: 40 bar Air blow Roto Clear

Condition: good (used), DMG Mori Sauer Lasertec 65 Shape Year of manufacture: 2014 X-axis travel: 650 mm Y-axis travel: 650 mm Z-axis travel: 560 mm Control system: Siemens 840D sl Main spindle: Speed range – main spindle: 20 - 10,000 min/-1 Drive power – main spindle: 13 / 9 kW Max. torque: 83 / 57 Nm Tool interface: HSKA63 DIN 69893 NC rotary table: Nodpfx Abezqddxsgowk Table clamping surface: 800 x 650 mm Max. table load: Swiveling range: +/- 120° Rotary range: 360° T-slots: 600 Max. workpiece dimensions: 650 (840) x 500 mm Tool magazine: Number of tool positions: 30 Max. tool weight: 6 kg Max. tool diameter: 80 mm Max. tool diameter with free adjacent tool pocket: 160 mm Max. workpiece length: 315 mm Tool change time (tool to tool): 1.6 sec Chip-to-chip time: 8.0 sec Feed rates: Rapid traverse: 40 m/min Feed force: 7/13/10 kN Feed rate: 1 - 40,000 mm/min Total power consumption: 24 kVA Machine weight (approx.): 11.5 t Space requirement (approx.): 4.5 x 3.5 x 2.3 m Documentation Coolant system Electric handwheel Laser head: 100 watts Laser hour meter: 6177 h / 2802 h Machine hour meter: 18703 h / 4738 h

Condition: good (used), Year of construction: 2005, Universal machining center Nedpjzi Dzhsfx Abgswk Machine type: DMG DMU 50 Evo linear Control: Heidenhain iTNC 530 Year: 2005 SPECIFICATIONS 5-axis-simultaneous Travel X-Axis: 500 mm Y-Axis: 450 mm Z-Axis: 400 mm B-Axes: 108° C-Axis: 360° Rapid motion: (X/Y/Z): 80 / 50 / 50 m/min. Amount of controlled axes: 5 Spindle speeds: 18.000 rpm Tool: SK 40 Toolchanger Tool capacity: 30 NC-panning and rotary Table Table size: 500 x 380 mm Power consumption: 52 kVA KW Machine weight: 6,5 kg Req. space (LxBxH): 5,4 x 6,5 m Equipment No cooling through spindle No chip conveyor: Spänewanne Caliper Working mode: 4

Condition: ready for operation (used), Year of construction: 2006, functionality: fully functional, Universal Machining Center DMG DMU 80 U, 5-Axis Simultaneous Travel (X/Y/Z): 800/700/600 mm Spindle speed: 12,000 rpm Nwjdoypaqmspfx Abgok Tool holder: SK 40 • B-axis: automatically swiveling milling head • C-axis: NC rotary table 900 x 630 mm • Tool magazine: 120 positions • Heidenhain control: 530 iT Additional equipment: • Double pallet changer • Coolant temperature control system • Chip conveyor • Internal coolant supply 40 bar • Paper band filter • Rotatable inspection window • Cleaning gun • Total power requirement: 59 kW ° Addition: 4th pallet ° Machine weight: approx. 14,000 kg

Condition: excellent (used), Year of construction: 1997, Heidenhain Mill-Plus control system Travel ranges X/Y/Z: 500 x 380 x 380 mm Nwjdpfx Aszfx Ubebgek Clamping surface: 500 x 400 mm Tool magazine for 24 tools, SK 40 Spindle speed: 8,000 rpm NC rotary and tilting table Chip conveyor

Condition: used, Year of construction: 2011, total height: 3,000 mm, total length: 5,000 mm, total width: 3,000 mm, overall weight: 12,700 kg, spindle motor power: 18,000 W, DMG DECKEL MAHO DMF 180 travelling column machining center,equipped with Heidenhain iTNC 530 control.Machine equipped with 40 bar through-spindle coolant (IKZ), 60-position tool magazine (chain type with double gripper), chip conveyor, electronic handwheel, air blast through spindle, M&H infrared probe and full enclosure.Table size approx. 2,100 x 700 mm.Operating hours: control ON approx. 63,700 h, machine ON approx. 22,500 h, cutting time approx. 7,750 h Spindle performance: 18 kW Control: Heidenhain iTNC 530 ShopMill Travel Y-axis: 700 - mm Tool Changer: Yes Dimensions (LxWxH) approx.: 5000 x 3000 x 3000 mm Tool holder type: SK 40 Travel Z-axis: 700 - mm Weight approx.: 12,700 kg Travel X-axis: 1800 - mm Grinding spindle speed: 14000 - rpm Year of construction: 2,011 Condition: good Terms of payment: 100% prepayment before pick-up Terms of delivery: From foundation Nwedpfoy Tkdgsx Abgok under power: Yes

Condition: excellent (used), Year of construction: 2009, x-travel 500 mm y-travel 450 mm z-travel 400 mm control Siemens 840 D tool adaptor SK 40 spindle turning speed - stepless 2 U/min feed speeds mm/min Nwodpfszawmaox Abgok tool change unit 16 surface area 700 x 500 mm workpiece weight max. 500 kg weight of the machine ca. 4,4 t Overall size 2,8 x 2,6 x 2,5 mm Full coverhing/ housing cooling device, handwheel only about 1.500 h

Condition: good (used), Year of construction: 2002, Universal machining center Machine type: DMG DMU 200 P Control: Heidenhain TNC 430 M Year: 2002 SPECIFICATIONS Nsdpfx Abezizansgowk Travel X-Axis: 1.800 mm Y-Axis: 2.000 mm Z-Axis: 1.100 mm B-Axes: 0,001° C-Axis: 0,001° Amount of controlled axes: 5 Spindle speeds: 20 - 10.000 rpm Spindle power: 44 / 32 kW Torque: 288 / 187 Nm Tool: SK 50 Toolchanger Tool capacity: 60 NC rotary table Table size: 1.700 x 1.400 mm Max. Table Load: 5.000 kg Equipment Chip conveyor Internal cooling: 40 bar Caliper Electronical handwheel Oil mist separator Tool measurement: Blum Laser Attachment spindle, 42,000 rpm, HSK 32 (optional)

Condition: good (used), Year of construction: 2023, functionality: fully functional, DMG Mori M2 Pro, Year of manufacture 2023 / Commissioned in 2024, Control system Siemens Sinumerik ONE, Travel range X/Y/Z 1100/550/510 mm, Table size 1400 x 600 mm, Tool changer with 24 positions, Linear axes X/Y/Z 24 m/min Tool holder SK 40, Spindle speed up to 12,000 rpm, Chip conveyor Renishaw probing system kit Coolant spray gun Enclosure roof Internal high-pressure cooling 20 bar, Bed flushing via M-function Job Shop package for SIEMENS SINUMERIK ONE, Mechanical preparation for oil mist separator, Ø 150 mm, 4th axis package, -Rotary table Lehmann, type: EA-510.L NE with indirect measuring system, Electrical and pneumatic preparation Software preparation for Rotary table machining lRACYL software for surface machining Tilting cycle (Cycle 800) Holding torque spindle clamping: 800 Nm Max. speed: 65 rpm, Center height 150 mm, Rotary table positioned along the X-axis on the right side of the work table, Manual chuck (three-jaw), diameter 160 mm, Tailstock, manual, for NC rotary table, stroke: 40 mm, center height 150 mm, Tropical package, Active cooling unit for control cabinet, Compressed air, external and internal (through spindle center), can be activated via M-function, External electronic handwheel, Njdpfxoza Aluj Abgjwk Software option - DXF import, Machine with 1800 spindle hours.

Condition: good (used), Year of construction: 2002, Universal machining center Nodpfx Abeziy Uwegjwk Machine type: DMG DMC 340 U Control: Heidenhain iTNC 530 Year: 2002 SPECIFICATIONS Travel X-Axis: 2.800 mm Y-Axis: 3.400 mm Z-Axis: 1.600 mm B-Axes C-Axis Rapid motion: (X/Y/Z): 60 / 30 / 40 m/min. Panning head Spindle speeds: 10.000 rpm Spindle power: 44/32 kW Torque: 288 Nm Tool: HSK 100 Tool capacity: 120 Tool diameter: 130 / 250 mm Tool lenght: 650 mm Tool weight: 30 kg NC rotary table: 2500 x 2000 Palett system Amount of paletts: 2 Palett size: 2.500 x 2.000 mm Rotary table plate: D. 2.800 Equipment Internal cooling: bar Cooling tank: l Chip conveyor Electronical handwheel Chip rinsing pistol

Condition: used, Year of construction: 1987, Technical details: x-travel: 700 mm y-travel: 500 mm Nwjdpfju Idbyjx Abgek z-travel: 600 mm table swivelling +/-: A-Achse: 20° / 60° Grad table rotating: B-Achse: 360° Grad control: Maho 432 (3-D Bahnsteuerung) Max. Milling-capacity: ST: 60 und GG: 22 mm tool changer with: 24 Plätze number of spindle speeds: 20 - 6300 U/min. max. table load: 200 kg spindle taper MT: ISO 40 (hydr. Spannung) spindle head swivable left - right: 90° (manuell) ° quill stroke: 80 mm feed range: X/Z: 1 - 3000 und Y: 1 - 4000 und B: 0,1 - 3000°/min. mm/min rapid traverse:: X/Z: 10 und Y: 8 und B: 20 U/min. m/min control voltage: 110/220 V total power requirement: ca. 20 kVA Weight approx.: 5,5 t dimension machine xH: 3,0 x 2,4 x 2,25 m space requirements of the machine approx.: 5,2 x 5,0 x H: 2,3 m NC rotary table Ø 520 mm with A and B axes Adjustable three-phase motor with 4-stage reduction gear Working spindle can be swiveled out for horizontal spindle Equipment: -manual control unit -coolant device -machine ilumination *

Condition: excellent (used), Year of construction: 2022, functionality: fully functional, We offer you: CNC bed milling machine Manufacturer: DMG MORI Type: CMX 70 U Year of manufacture: 2022 Control system: Celos with Siemens 840D sl Operate Technical data: Travel distances: X-axis: 750 mm Y-axis: 600 mm Z-axis: 520 mm B-axis: -10 to +95° C-axis: 360° Main spindle: Tool interface: SK 40 Speed range - main spindle: 20 - 15,000 rpm Drive power - main spindle (40/100%): 20 / 14.5 kW Torque - main spindle (40/100%): 121 / 84 Nm Work table: Table size: D 800 x 620 mm Tool changer: Number of tool positions: 30 Max. tool diameter: 80 / 130 mm Max. tool length: 300 mm Max. tool weight: 8 kg Max. magazine load: 120 kg Feed rates: Rapid traverse (x/y/z): 30 m/min Operating hours: approx. 5,300 h Nwedpfezcy I Sox Abgjk Spindle hours: approx. 3,010 h Technical features & accessories: - Direct linear measuring system in x, y, and z, incl. air purging - Compressed air switching via M function - Chip disposal package, includes: - Chip conveyor, tank 300 l - Spray gun - Signal light, 4-color - Tropical package, includes: - Active control cabinet cooling - Additional cooler on the control panel - Hydraulic oil temperature sensor - Cooling unit 3.3 kW for the main drive - Preparation for oil mist separator - Measuring probe kit, manufacturer Heidenhain, includes: - TS460 workpiece measuring probe - Measuring cycles - Tool length/diameter kit, manufacturer Heidenhain, includes: - TT160 for tool measurement - Measuring cycles, incl. tool breakage monitoring - Automation package, includes: - Loading and unloading via automatic magazine door - Automatic closing of the tool magazine - Cabin roof - Electronic handwheel - ATC (Application Tuning Cycle) - Preparation for 3D quickSET Accessories, tools and clamping devices shown in the pictures are only included in the scope of delivery if this is stated in the additional information. Subject to changes and errors in technical data and specifications, as well as prior sale!

Condition: good (used), Year of construction: 2017, Main spindle changed 2025. Nwedey S U Tcspfx Abgsk Technical details shown on photo. Parts shown by hand not come.

Condition: excellent (used), Year of construction: 2009, operating hours: 8,000 h, functionality: fully functional, travel distance X-axis: 730 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 560 mm, controller manufacturer: Heidenhain, controller model: iTNC 530, rotational speed (max.): 12,000 rpm, spindle motor power: 12,000 W, number of slots in tool magazine: 60, Equipment: chip conveyor, documentation/manual, Available: End of October/Beginning of November Nwedpfxozwx Aie Abgjk Manufacturer: DECKEL MAHO (DMG MORI) Model: DMU 60 monoBLOCK Year of manufacture: 2009 Operating hours: approx. 30,000 h Spindle hours only: approx. 8,000 h Control system: HEIDENHAIN iTNC 530 Axes: 5-axis simultaneous machining Technical data & spindle: Travels: X = 730 mm | Y = 560 mm | Z = 560 mm 4th axis (B-axis – swivel head): +30° to -120° (NC swivel milling head with hydraulic clamping) 5th axis (C-axis – rotary table): 360° (endlessly rotatable NC rotary table, resolution 0.001°) Main spindle: max. 12,000 rpm (high-torque version) Tool interface: SK 40 Tool changer: 60-position chain magazine (large expansion stage) Equipment & accessories: Cooling: Internal coolant supply (IKZ) including paper band filter system Chip conveyor Measuring probe available - DMG TS 649 Documentation and key available Videos available