Used Doosan Doosan Dx35Z for sale (307)

Condition: used, color: orange, lifting height: 3,410 mm, Year of manufacture: 2019 Year of construction: 2019 Operating hours: 3.650 Field of application: Construction Empty weight: 3.500 kg Dimensions (LxBxH): 465 x 170 x 252 cm Digging depth: 4.88 m Nsdpfx Aisxqfb Eerown = Additional options and accessories = - Rubber tracks

Condition: used, lifting height: 3,410 mm, Year of construction: 2019 Operating hours: 2.910 Empty weight: 3.500 kg Dimensions (LxBxH): 465 x 170 x 252 cm Nwedpfxeyn En Uj Airsn Digging depth: 4.88 m = Additional options and accessories = - Rubber tracks

Condition: used, Year of construction: 2013, operating hours: 18,899 h, functionality: fully functional, machine/vehicle number: ML0237-000102, spindle speed (max.): 4,500 rpm, spindle bore: 76 mm, travel distance X-axis: 230 mm, travel distance Z-axis: 580 mm, type of input current: AC, total height: 1,700 mm, total length: 2,834 mm, total width: 1,628 mm, overall weight: 3,600 kg, spindle diameter: 110 mm, • CNC turning center from the Doosan PUMA-GT series • Horizontal turning machine for metalworking Node Aft Rnspfx Airswn • M-version with driven tools • Suitable for turning, drilling, and milling operations • Can be used for single parts, small batch production, and series production • Maximum turning diameter: 300 mm • Maximum machining length: 513 mm • Chuck size: 8 inches • Bar capacity: up to 65 mm • Maximum spindle speed: 4,500 rpm

Condition: used, Year of construction: 2023, operating hours: 113 h,

Condition: used, Year of construction: 2023, operating hours: 2 h,

Condition: used, Year of construction: 2013, functionality: fully functional, turning diameter: 370 mm, spindle bore: 76 mm, spindle speed (max.): 3,500 rpm, rotational speed (max.): 712 rpm, Equipment: rotational speed infinitely variable, DOOSAN LYNX300M (32,000 euros) - CNC: FANUC - Chuck diameter: 250 mm - Swing over bed: 651 mm - Max. turning diameter: 370 mm Nwodpfx Ae Ady Htoirsn - Max. turning length: 712 mm - Spindle bore: 76 mm - Spindle speed: 3,500 rpm - C-axis - Main spindle motor: 15 kW - Rapid traverse rates X/Z: 30/24 m/min - BMT 55 turret: 12 positions - Rotating tool speed: 5,000 rpm - Machine weight: 3.6 t - Overall dimensions: 3 x 1.8 x 1.7 m

Condition: excellent (used), Year of construction: 2019, functionality: fully functional, travel distance X-axis: 1,500 mm, travel distance Y-axis: 670 mm, travel distance Z-axis: 625 mm, controller manufacturer: HEIDENHAIN, controller model: TNC-620, workpiece weight (max.): 1,300 kg, total height: 3,100 mm, total length: 4,400 mm, total width: 2,450 mm, table width: 670 mm, table length: 1,600 mm, overall weight: 9,000 kg, spindle speed (min.): 80 rpm, spindle speed (max.): 12,000 rpm, coolant supply: 20 bar, distance table center to spindle nose: 775 mm, spindle nose: ISO 40, number of slots in tool magazine: 40, input voltage: 400 V, type of input current: three-phase, Equipment: chip conveyor, Used 3-axis vertical machining center with Heidenhain TNC-620 CNC Nedpfx Aj Afpq Roirswn

Condition: like new (used), Year of construction: 2022, operating hours: 400 h, functionality: fully functional, turning length: 1,030 mm, turning diameter: 460 mm, spindle bore: 81 mm, spindle speed (max.): 3,500 rpm, travel distance X-axis: 265 mm, travel distance Z-axis: 1,100 mm, Doosan Puma GT2600LM, 2022. Machine with only 400 operating hours. Excellent condition. Fanuc 0i-F Plus iHMI-Touch control with Manual Guide. Max. turning length: 1030 mm Max. turning diameter: 460 mm Chuck: 250 mm Spindle bore: 81 mm Spindle: ASA A2-8 Max. spindle speed: 3500 rpm Motor: 18.5/22 kW 12-tool turret, BMT 55 Axis travels: -X: 265 mm -Z: 1100 mm -C: +-360° Live tooling Renishaw tool probe Tailstock Part catcher Included with the machine: - Chip conveyor with collection tank - High-pressure pump - Documentation Nedpfs Aba D Hsx Airewn - 4 live tooling holders (2 angular, 2 straight)

Condition: excellent (used), Year of construction: 2019, functionality: fully functional, travel distance X-axis: 2,160 mm, travel distance Y-axis: 762 mm, travel distance Z-axis: 650 mm, rapid traverse X-axis: 24 m/min, rapid traverse Y-axis: 24 m/min, rapid traverse Z-axis: 24 m/min, controller manufacturer: FANUC, controller model: FANUC I SERIES, spindle speed (max.): 12,000 rpm, spindle nose: BT40, number of slots in tool magazine: 30, Equipment: chip conveyor, CNC milling machine of medium dimensions, intended for both rough and fine processing. A powerful motor in combination with high rigidity and a high-precision base spindle enable large removals and precision. The machine is a suitable answer to a wide range of requirements in production, especially in toolmaking. The machine is sold as a set with the equipment described in the listing. Machine is is good condition and regularly maintained. -10,4 " display - 12.000 RPM spindle 18,5kW, 118Nm -BT40 -30 tools magazine - 12 bar through the spindle cooling -oil skimmer belt type -ethernet connection -coolant gun -tool load monitoring -tool breakage detection with needle -automatic doors -robot interface -4th axis preparation -GSA CNC-400R rotary table -GSA TSA-320S support -Hydraulic aggregate 200 bar 3 A+B -preparation for rotary table hydraulic 2x(3A+B) -seat air check -level sensor for coolant liquid Nsdo Adp H Aspfx Airjwn -LNS MH500 chip conveyor

Condition: used, Year of construction: 2007, functionality: fully functional, DOOSAN PUMA 240MB 2007 MODEL 8 INCH BAR CAPACITY: 65 MM CAPACITY: 350-550 MM FANUC OITC CONTROL TALAS CONVEYOR Nwedpfe Afpigox Airen THE MACHINE CAN BE VIEWED AT OUR ISTANBUL WAREHOUSE.

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, Equipment: documentation/manual, We are offering a complete, integrated robotic CNC turning cell consisting of two DOOSAN vertical CNC turning centers and one KAWASAKI ZX-165U industrial robot. The machines and robot are exceptionally well preserved, regularly maintained and currently operating in our production facility in a two-shift environment. The robotic cell enables automated workpiece handling, loading and unloading between the CNC machines. This is an opportunity to acquire an existing production automation system rather than sourcing individual machines and commissioning a new integration. 1. Complete cell – Included equipment • 1 × DOOSAN VT450TM-2SP CNC turning center • 1 × DOOSAN VT750TM-2SP CNC turning center • 1 × KAWASAKI ZX-165U industrial robot and robot control cabinet • Installed robot gripper / workpiece handling equipment • Safety fencing and protective enclosure • Robot-to-machine communication interfaces • Associated electrical and pneumatic automation components • Workpiece handling / storage stations and chip conveyors 2. Condition, inspection and advantages Both CNC machines and the Kawasaki robot are fully operational, regularly maintained and currently used in our manufacturing facility in Slovenia. The complete cell can be inspected under power and demonstrated during production by prior appointment. • Complete, existing robotic CNC turning solution • Two heavy-duty Doosan vertical turning centers with FANUC CNC controls • Driven tools and C-axis on both machines • Automated workpiece handling and reduced manual intervention Nwjdpsz Rqqqofx Airsn • Excellent condition; regularly maintained • Live inspection and test run available 3. Typical applications Automated machining of flanges, bearing rings, gear components, housings, brake discs, large rotational components and other medium- to heavy-duty industrial workpieces, including steel and cast-iron parts. 4. Sales information The complete robotic cell is offered for sale as one integrated system. Additional photographs, video and technical information are available upon request. Inspection and test run by appointment

Condition: used, Year of construction: 2007, functionality: fully functional, spindle bore: 52 mm, spindle speed (max.): 6,000 rpm, spindle motor power: 15 W, overall weight: 3,500 kg, For sale: DOOSAN LYNX 220MA CNC turning center, year 2007, equipped with driven tools, C-axis, and FMB SL 80 S automatic short-bar feeder. Technical specifications Manufacturer: DOOSAN Infracore Model: LYNX 220MA Year of manufacture: 2007 CNC control: DOOSAN-FANUC Maximum turning diameter: 250 mm Nwodpj Aay Ntsfx Airsn Maximum turning length: 290 mm Maximum bar capacity: 51 mm Main spindle speed: 6,000 rpm Main spindle motor: 15 / 11 kW Chuck size: 6" Turret: 12 stations Driven tools / live tooling: Yes Maximum live tool speed: 6,000 rpm Live tooling motor: 3.7 kW C-axis: Yes Included equipment FMB SL 80 S automatic short-bar feeder Driven-tool turret C-axis for milling and drilling operations Chip conveyor Tool holders visible in the photographs The machine is suitable for automatic bar machining, including turning, drilling, tapping, and milling operations. Location: Slovenia, EU

Condition: used, Year of construction: 2018, functionality: fully functional, turning length: 760 mm, turning diameter over cross slide: 630 mm, turning diameter: 376 mm, spindle motor power: 33,000 W, spindle speed (max.): 4,000 rpm, spindle bore: 91 mm, travel distance X-axis: 260 mm, travel distance Y-axis: 53 mm, travel distance Z-axis: 830 mm, bar passage: 81 mm, controller manufacturer: Siemens, controller model: 828D, number of tool stations in tool turret 1: 24, number of driven tool stations in tool turret 1: 12, CNC turning machine with counter-spindle, driven tools, and Y-axis. • Max. turning diameter over bed: 780 mm • Max. turning diameter over slide: 630 mm • Max. turning length: 760 mm • Torque of the main spindle: 719 Nm • Spindle mounting (main spindle): a2 #8 • Speed of the counter-spindle: 6000 rpm • Power of the counter-spindle (30 min): 18.2 kW • Torque of the counter-spindle: 220 Nm • Spindle mounting (sub-spindle): a2 #5 • Number of stations: 24 (12 driven) Additional equipment: • Renishaw Equator • Rotary turret magazine • Gantry robot • Gantry loader (Mekiload) The machine can be inspected while powered on. Nwjdpfx Aie Ad U Uxeren

Condition: used, Year of construction: 2018, functionality: fully functional, Equipment: documentation/manual, rotational speed infinitely variable, Doosan Turning Center 2 Axes (X, Z) Model: Puma GT2100B Year: 2018 CNC: Fanuc CE Certification Chip Conveyor: Operational ✅ Documentation: Available ✅ Nwodpfx Aisz St Tqerjn Chuck: Operational ✅

Condition: good (used), Year of construction: 2012, functionality: fully functional, DOOSAN PUMA 2600S – CNC turning center with subspindle, FANUC, year 2012 We offer for sale a DOOSAN PUMA 2600S CNC turning center with subspindle, equipped with a reliable DOOSAN-FANUC i Series control system. The machine is in operation and can be demonstrated and tested upon request. Technical specifications: Manufacturer: Doosan Infracore Model: PUMA 2600S Year of manufacture: 09/2012 Serial number: ML0218-000034 CNC control: DOOSAN-FANUC i Series Configuration: main spindle + subspindle Max. turning diameter: approx. 376 mm Max. turning length: approx. 760 mm Main spindle chuck: approx. 10" Bar capacity through main spindle: approx. 76 mm Max. main spindle speed: approx. 3,500 rpm Main spindle power: approx. 18.5 / 22 kW X-axis travel: approx. 260 mm Z-axis travel: approx. 830 mm Nedpj Acnp Tsfx Airjwn Turret: 12 positions Automatic subspindle for complete part machining Chip conveyor Rated machine power: 40.7 kVA Power supply: 200/220 V, 3 phases, 50/60 Hz Machine weight: 5,400 kg Robust CNC turning center suitable for both series and single-piece production. Thanks to the subspindle, it enables machining of the part from both sides without the need for manual switching between individual operations. The machine is currently powered on and can be demonstrated in operation.

Condition: like new (used), Year of construction: 2022, functionality: fully functional, turning length: 725 mm, turning diameter over cross slide: 590 mm, turning diameter: 376 mm, spindle motor power: 30 W, spindle speed (max.): 2,800 rpm, spindle bore: 115 mm, travel distance X-axis: 280 mm, travel distance Z-axis: 830 mm, rapid traverse X-axis: 24 m/min, rapid traverse Z-axis: 30 m/min, torque: 1,112 Nm, bar passage: 103 mm, bar diameter (max.): 103 mm, quill stroke: 100 mm, quill diameter: 100 mm, quill travel distance: 100 mm, swing diameter over cross slide: 590 mm, spindle nose: A 2-11, swing diameter over bed slide: 720 mm, feed force X-axis: 9,465 N, feed force Z-axis: 17,379 N, Equipment: documentation/manual, rotational speed infinitely variable, As-new machine, only used for commissioning and combined with a Universal BIG 70 LoadAssistant holder. Can also be purchased separately. Nedpfoyud Uaox Airewn

Condition: like new (used), Year of construction: 2023, functionality: fully functional, machine/vehicle number: H2017, overall weight: 68 kg, load capacity: 20 kg, arm reach: 1,700 mm, pivoting range: 360 °, type of input current: three-phase, The Doosan H2017 is an advanced collaborative robot (cobot) that combines high performance with maximum safety and precision. With a lifting capacity of up to 20 kg and a reach of 1,700 mm, the H2017 is ideal for heavy and space-intensive tasks in industry, production, and logistics. The robot is equipped with six integrated high-performance torque sensors, which ensure extremely precise motion control and safe operation in collaboration with humans. This technology makes the H2017 particularly suitable for tasks where both strength and sensitivity are crucial – such as palletizing, machine tending, assembly, and handling of heavy items. Benefits of the Doosan H2017: ✅ High payload of 20 kg – perfect for heavy lifting ✅ Long reach (1,700 mm) – increased flexibility and coverage ✅ Six torque sensors – precise, stable, and safe collaboration ✅ Intuitive programming – quick implementation and startup ✅ Advanced safety features – meets international standards ✅ Robust and reliable design – suitable for industrial environments Ideal for: Palletizing and depalletizing Machine tending Assembly and joining Internal logistics and material handling Automation of manual and ergonomically demanding tasks Nwedpfsz Sxc Rsx Airjn With the Doosan H2017, you get a future-proof cobot that increases productivity, reduces the strain on employees, and delivers consistently high quality – every time. Availability: We have some almost new Doosan H2017 units for sale – still in their original packaging.

Condition: excellent (used), Year of construction: 2017, operating hours: 2,742 h, functionality: fully functional, machine/vehicle number: MV0061-000661, travel distance X-axis: 762 mm, travel distance Y-axis: 516 mm, travel distance Z-axis: 570 mm, controller manufacturer: Fanuc, workpiece length (max.): 800 mm, workpiece width (max.): 550 mm, workpiece height (max.): 460 mm, total height: 2,580 mm, total length: 3,260 mm, total width: 3,130 mm, table width: 570 mm, table height: 880 mm, table length: 860 mm, overall weight: 9,200 kg, distance table center to spindle nose: 720 mm, spindle motor power: 15,000 W, number of slots in tool magazine: 30, input voltage: 380 V, type of input current: AC, Equipment: chip conveyor, documentation/manual, Doosan VC 510 (2017) – Vertical Machining Center with APC High-productivity 40-taper vertical machining center featuring a heavy-duty column-moving design and an integrated 2-pallet automatic pallet changer (APC). Key Specifications: Year: 2017 Control: Fanuc Travels (X / Y / Z): 762 × 516 × 570 mm Pallet Size (×2): 860 × 570 mm (Rotary APC, ~6 sec swap) Max Workpiece Size: 800 × 550 × 460 mm Max Table Load: 350 kg per pallet Spindle Motor (kW): 15(30min)/11(CONT.) Nsdpfxsz Atqrj Airjwn Max. Torque (Nm): 191.1(30min) Tool Changer (ATC): 30 Tools Rapid Traverse (X/Y/Z): 40 / 40 / 32 m/min Guideways: Heavy-duty Roller LM Guides Machine Weight: ~9,200 kg Excellent condition, fully maintained, and built for continuous high-speed production. Contact for inspection and further details.

Condition: used, Year of construction: 2018, travel -x axis 1.300 mm travel -y axis 670 mm travel -z axis 625 mm control HEIDENHAIN - TNC 620 number of spindle speeds 12.000 U/min tool taper SK 40 table dimension (L x W) 1.500 x 670 mm numbers of positions in the tool changer 30 Milling machining centers - vertical | DOOSAN - DNM 6700 equipped with 30-way tool changer, ITC cooling system and chip conveyor. Nwodo Adfluepfx Airjn The machine only has 13.600 spindle hours. The machine is in well-maintained condition, has been used exclusively for machining aluminium and plastics, and is available for inspection under power at any time. The machine video from the production plant will be shared on request. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: DNM5700 | DNM-5700

Condition: excellent (used), Year of construction: 2018, functionality: fully functional, travel distance X-axis: 1,300 mm, travel distance Y-axis: 670 mm, travel distance Z-axis: 625 mm, controller manufacturer: Fanuc, controller model: Fanuc, table width: 670 mm, table length: 1,500 mm, table load: 1,300 kg, spindle speed (min.): 12,000 rpm, number of spindles: 1, Manufacturer: Doosan Model: DNM 6700 Year: 2018 Condition: (Used) Excellent Control: Fanuc Control Accessories: Kitagawa 4th Axis, Renishaw Spindle Probe, Tool Probe, Swarf Conveyor, Mist Extraction Unit & Manuals. LOCATION: COVENTRY, UNITED KINGDOM Nwodpfx Aezwhtksirsn MACHINE SPECIFICATIONS Control: Fanuc Control X Axis Travel: 1300mm Y Axis Travel: 670mm Z Axis Travel: 625mm Max Workpiece Weight: 1300kg Spindle Speed: 12,000rpm Table Size: 1500 x 670mm Tool Change Capacity: 30 ATC Tool Size: BT40

Condition: excellent (used), Year of construction: 2013, functionality: fully functional, travel distance X-axis: 490 mm, travel distance Z-axis: 780 mm, DOOSAN PUMA V550M – CNC Vertical Turning Lathe Manufacturer: DOOSAN Model: PUMA V550M Year: 2013 CNC Control: FANUC i-Series Machine Type: CNC Vertical Turning Lathe with C-Axis and Live Tools Machine Weight: 9,000 kg Machine Dimensions: 1,905 x 3,365 x 3,350 mm Maximum Swing Diameter: 800 mm Maximum Swing Over Carriage: 490 mm Maximum Turning Diameter: 730 mm Maximum Turning Height: 750 mm Maximum Load Capacity on Chuck: 650 kg Chuck Diameter: 390 mm Spindle Nose: ASA A2-11 Spindle Speed: 20 – 2,000 rpm Spindle Motor Power: 30 / 37 kW Automatic Spindle Speed Ranges: 2 C-Axis: ±360° with 0.001° angular positioning and hydraulic clamping X-Axis Travel: 490 mm Z-Axis Travel: 780 mm X-Axis Rapid Traverse: 12,000 mm/min Nedpfjz Albcsx Airewn Z-Axis Rapid Traverse: 16,000 mm/min C-Axis Rapid Speed: 200 rpm Turret: BMT-75 Turret Stations: 12 positions, suitable for live tools Live Tool Speed: 30 – 3,000 rpm Live Tool Motor Power: 3.7 / 5.5 kW Tool Size: 32 x 32 mm / Ø50 mm Live Tool Holders: 4 included, 2 radial and 2 axial Additional Tooling: Various fixed tool holders Automation Preparation: Automatic side door for loading automation Coolant System: Coolant tank with high-pressure pump Chip Removal: Rear chip conveyor Documentation: Manuals, electrical diagrams and EC/CE Declaration

Condition: like new (used), Year of construction: 2026, operating hours: 42 h, functionality: fully functional, overall weight: 9,500 kg, fuel type: diesel, power: 504 kW (685.25 HP), output current: 910 A, output voltage: 400 V, output frequency: 50 Hz, type of output current: AC, nominal power: 504 kW (685.25 HP), nominal power (apparent): 630 kVA, continuous power (apparent): 800 kVA, total length: 5,000 mm, total width: 245 mm, total height: 2,650 mm, rotational speed (max.): 1,500 rpm, motor manufacturer: Doosan, type of cooling: water, fuel: diesel, input voltage: 400 V, input frequency: 50 Hz, rotational speed (min.): 1,500 rpm, type of input current: three-phase, We have the following emergency power generators or grid replacement systems from our series production for sale, with the following technical specifications: Condition: New, 2026 Engine: Doosan DP180LB Rated power: 700 kVA / 560 kW Nodpfx Aswqai Hoirown Speed: 1500 rpm Frequency: 50 Hz Rated voltage: 231/400 V - Includes batteries - Includes diesel tank (1000L) - Includes circuit breaker 4P ABB XT7S - Includes control system (island operation). - Optionally, a control system for grid-parallel operation, load distribution, and peak load management is available at an extra cost. Seamless integration into your energy infrastructure. Complete unit installed as a compact system in a soundproof, weatherproof container. Dimensions: 600x245x270cm (LxWxH) Weight: 10,500 kg Warranty: 24 months or 2000 operating hours. The emergency power generator will be delivered in operational condition, including a logged load test of 60 minutes. Delivery, installation, and commissioning are available at an extra cost. Price: €69,000 net Immediately available.

Condition: ready for operation (used), Year of construction: 2016, functionality: fully functional, travel distance X-axis: 800 mm, travel distance Y-axis: 450 mm, travel distance Z-axis: 510 mm, feed rate X-axis: 36 m/min, feed rate Y-axis: 36 m/min, feed rate Z-axis: 36 m/min, controller manufacturer: FANUC, controller model: i Series + Easy Operation Package, total height: 2,950 mm, total length: 2,160 mm, total width: 2,615 mm, table width: 450 mm, table length: 1,000 mm, table load: 600 kg, overall weight: 5,000 kg, spindle speed (min.): 0 rpm, spindle speed (max.): 8,000 rpm, operating hours of spindle: 5,025 h, coolant supply: 20 bar, spindle motor power: 18,500 W, spindle nose: SK40 (DIN69871), number of spindles: 1, number of slots in tool magazine: 30, Equipment: chip conveyor, documentation/manual, We acquired this machine in working condition directly from the first owner, after it had completed its production cycle. The Doosan DNM 4500 from 2016, equipped with a FANUC control system, is a reliable 3-axis vertical CNC machining center. It is particularly suitable for general milling operations, working with steel/stainless steel/aluminum, and for series production. Nedezzdh Eopfx Airown The machine will be fitted with 2 new original windows (currently on order)! Additional options & accessories: - Internal cooling (20 bar) - Electronic handwheel - DOOSAN Easy Operation Package - Chip conveyor - HAIMER 3D probe - AOF mist extraction system - Oil skimmer - Preparation for a 4th axis - All original documentation.

Condition: good (used), Year of construction: 2015, functionality: fully functional, machine/vehicle number: ML0271-000198, spindle speed (max.): 6,000 rpm, spindle motor power: 15 W, total height: 1,600 mm, total length: 2,325 mm, total width: 1,600 mm, feed rate X-axis: 36 m/min, feed rate Y-axis: 36 m/min, feed rate Z-axis: 36 m/min, type of input current: three-phase, bar passage: 65 mm, Equipment: documentation/manual, We are offering for sale a DOOSAN LYNX 220LSYC CNC lathe with a tailstock, in good condition, manufactured in 2015. It operated for 2 years in medium-volume series production, and since then, it has been used to produce smaller series and custom parts. The machine is equipped with a chip conveyor, tool measuring device, a chuck with collet mounting, and a 3-jaw hydraulic chuck. It has powered tool holders (3 pieces). It includes an LNS bar feeder, capable of handling bars up to 3 meters in length (included in the price). Other features include: workpiece ejector, workpiece catching and delivery system, tool load monitoring, and an oil separator, which extends the coolant's lifespan. It also has a highly rigid cast iron machine bed and a turret with 12 tool positions (24 positions). The dimensions refer only to the lathe itself. Weight: 2900 kg (the weight of the bar feeder is separate). Net price. Nedpfx Aiey Uwgqjrown If you have any questions or require further information, please send us a message.

Condition: good (used), Year of construction: 2013, functionality: fully functional, Technical data, prices, and images can be found in the PDF files attached. Nwedozuddyepfx Airen