Used Desoutter Pt040-T6000-S10S for sale (79)

Condition: used, Cheese Vat, Open Type, Stainless Steel, 6,000 L capacity. Complete stainless steel vat with agitation equipment. Insulated. Very good working condition, last used two months ago. Dodox R U Htopfx Anzokr

Year of construction: 2018, condition: good (used), EKRA Material Storage System S10 Select Year of manufacture: 2018 Consumables such as solder paste and adhesives can be stored in accordance with product specifications and in a production-optional manner Traceability Temperature control (4-12°C) Dedpfx Anoxxk Elszjkr 8 tiers Material dispensing via lift system Handheld scanner

Condition: used, Year of construction: 2018, mileage: 88,863 km, power: 170 kW (231.14 HP), first registration: 06/2018, overall weight: 15,000 kg, fuel type: diesel, color: white, axle configuration: 2 axles, next inspection (TÜV): 08/2028, gearing type: mechanical, emission class: euro6, loading space volume: 6 m³, Equipment: ABS, air conditioning, Internal vehicle number: G400141 Available immediately at our yard in Kaufungen More information at: Dodpfey I Hfpsx Anzekr * Golec Nutzfahrzeuge GmbH (German, English, Bulgarian, Russian) * Viktoria Sologubova (Polish, Russian, Ukrainian, English) Type: Atego 1323 Body type: Sweeper truck First registration: 07.06.2018 Color: white Engine capacity ccm / power kW: 5,132 / 170 Engine type: Diesel Manual transmission, 8 gears Unladen weight: 9,150 kg Permissible total weight: 15,000 kg Length/Width/Height according to vehicle registration certificate: 6400/2550/3300 mm Seats/Doors: 2/2 Next MOT: 07/2026 (new upon purchase) SP due date: 01/2027 Mileage: 88,641 Tires: 10 R 22.5 141/142 G (1st axle Aeolus, 13 mm // 2nd axle Pirelli, left outer and inner 7 mm, right inner and outer 11 mm) on steel rims 1 previous owner Technical data of the road cleaning superstructure: Manufacturer: Bucher Municipal AG Type/Trade name: Cityfant 6000 Serial No.: SEQ8869 Year of manufacture: 07.06.2018 Chassis equipment: Lane keeping assistant L5 38A, right-hand drive, front axle 5.3t (BM 730.076/7), rear differential lock, 10 R 22.5, parabolic suspension front 5.1t, manual gearbox, OM 934 LA ..23 170kW, 1-layer solid paint, from 0039091, driver's air-suspended seat, air conditioning, additional thermal insulation, electric windows, sun visor, Fleetboard vehicle computer, radio, FHS short Classic Space, reversing warning system, Active-Brake-Assist, cruise control, ESP, daytime running lights, pre-equipment for external body electrical system, rotating beacons, exterior mirrors, exterior mirrors electrically adjustable, engine brake, speed limiter, shortened wheelbase Road cleaning superstructure equipment: JCB superstructure engine 55 kW, hydraulic fan drive, fuel tank for superstructure engine separate 150 l, exhaust routing through container superstructure, engine speed control continuously variable, sweeping material container 6.0 cubic meters, stainless steel sweeping material container, container tilting angle approx. 55 degrees, stainless steel dirt chute, observation flaps left and right, dirty water drain 4 inches, air shut-off on suction hose, A-coupling air routing screen, multi-stage safety support, pneumatically operated, standard roller and disc brushes, hydraulically driven, steel suction nozzle coated, suction hose diameter 250 mm, trailing wheels swiveling, automatic lifting of the sweeping unit when reversing, work lights for sweeping unit, standard control panel, BUCHER Minicipal instrument panel with 7-inch color display, multi-display, cable remote control, stainless steel water tank 1,900 liters with water level indicator, sweeping material drainage, warning lights Financing example: * Internal number: G400141 * Purchase price: 79,900.00 € * Down payment: 10% * Term: 60 * Monthly rate: 1,227.02 € Residual value: 14,380.00 € If you are interested in this offer or would like to customize it to your needs, please contact us (Mr. Enchev). We look forward to your call. Errors and omissions excepted. We will gladly accept your used vehicle in part exchange. Financing directly with us is possible. GOLEC NUTZFAHRZEUGE GMBH We speak: German, English, Spanish, Polish, Ukrainian, Russian, Bulgarian.

Condition: used, mileage: 115,280 km, power: 130 kW (176.75 HP), first registration: 07/2012, overall weight: 15,000 kg, fuel type: diesel, color: orange, axle configuration: 2 axles, gearing type: mechanical, emission class: euro5, total width: 2,550 mm, total height: 3,300 mm, Equipment: ABS, air conditioning, electronic stability program (ESP), * Blaupunkt radio * Rear-view camera system * BURY hands-free system * On-board computer * Air conditioning ----* 8-speed manual transmission * Leaf/air suspension * Engine brake ----* Bucher Schörling CityFant 6000 * Large TFT display with control panel * Bucher Smart control unit Dodpfx Aozah S Tjnzekr * Washing system * Large suction nozzle at the rear ----* Front tire dimension: 10R22.5 * Rear tire dimension: 10R22.5 * Fuel tank: 180 liters * Technical gross vehicle weight: 15000 kg * Unladen weight: 9550 kg * Overall length: 6500 mm ----Vehicle number: 11599----Errors and prior sale excepted----Advertisements and various lettering have been digitally removed. We are happy to assist you with all formalities that arise when purchasing a vehicle. Simply let us know your wishes and suggestions, and we will take care of them. Among other things, we can offer you the following services for an additional fee:----Trade-in of your old vehicle, TÜV/SP inspection, complete export processing, arrangement of financing, application for export license plates, vehicle transportation, and vehicle registration, as well as recovery and vehicle transport services.

Condition: good (used), Touch screen, control panel, display, operator panel, PLC, Simatic Panel PC, touch screen, touch panel, touch screen panel, Simatic Multi Panel, touch multi panel, touch screen -Manufacturer: Inovance, Touchscreen Panel -Type: IT6000 IT6070E -Voltage: 24VDC Dodpfsyxmahjx Anzekr -Dimensions: 200/55/H145 mm -Weight: 0.7 kg

Condition: used, Year of construction: 1999, For inquiries regarding the attachment, please contact Mr. Herden (at the phone number provided). Lehnhoff MS10 adapter plate / MS10 screw adapter / Year of manufacture: 1999 / in stock & immediately available Price: €1,390.00 net / €1,654.10 gross Own weight (kg): 210 Please refer to the attached images for precise hole dimensions. In our warehouse, we have a very large selection of various attachments that are immediately available! Mr. Herden (phone number provided) will be happy to assist you. Upon request, we will also gladly provide you with a financing offer. We are an official Magni telescopic handler sales and service partner. We are an official Holp sales and service partner. We are an official Gierking GMT sales and service partner. We are an official OilQuick sales and service partner. We are an official Weber MT sales and service partner. We are an official Westtech sales and service partner. We are an official DMS sales and service partner. We are an official Seppi M. sales and service partner. We are an official JCB construction machinery sales and service partner. We are an official Mercedes-Benz sales and service partner. We are an official Iveco sales and service partner. Dkjdpezlmv Tofx Anzor In addition, with 800 used vehicles, we are one of the largest commercial vehicle dealers in Germany. Errors and prior sale excepted! Internal ID: 000299 = Further information = Intended use: Construction Unladen weight: 210 kg Please contact Marius Herden for further information.

Condition: used, Year of construction: 2002, BE trailer field houses Capacity 6000 kg Dedpszcu Rujfx Anzekr Bj 2002

Condition: used, empty load weight: 1,650 kg, maximum load weight: 4,350 kg, first registration: 10/2016, next inspection (TÜV): 01/2026, total width: 25,500 mm, suspension: steel, tire size: 205 / 65 R 17.5 / 10mm, front tire size: 205 / 65 R 17.5 / 10mm, operation weight: 6,000 kg,

Year of construction: 2002, condition: excellent (used), Welding positioner, Mecome, 6 tons 6000 kg load capacity with hand and foot remote control Speed and inclination continuously adjustable 0.02 RPM to 1.1 RPM Dkedped S Hfijfx Anzor Diameter 1500 mm Height to center when tilted 1000 mm Height in horizontal position 1180 mm Length 2000 mm Width 1500 mm Condition: optically and technically flawless, runs very quietly.

Condition: used, mileage: 31,954 km, power: 213 kW (289.60 HP), first registration: 09/2021, overall weight: 16,000 kg, fuel type: diesel, axle configuration: 2 axles, next inspection (TÜV): 12/2026, gearing type: automatic, emission class: euro6, 07.12.2023 Operating hours: 1,249 Rotating beacons CityFant 6000 SH Double-sided sweepings pickup High pressure 100bar, Hydrostat, roller brush 400mm Disc brush 700mm 7" camera system, semi-hydrostat for double-sided operation, Dksdsq Nxwrepfx Anzer

Condition: ready for operation (used), Year of construction: 2010, operating hours: 55,000 h, travel distance X-axis: 10,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 1,000 mm, spindle speed (max.): 6,000 rpm, spindle motor power: 36,000 W, controller manufacturer: SIEMENS, controller model: Sinumerik 840 D, number of axes: 3, This 3-axis Unisign uniport 6000 gantry milling machine was manufactured in 2010. It features an impressive X-axis travel of 10,000 mm, Y-axis travel of 1,500 mm, and Z-axis travel of 1,000 mm. The machine is equipped with a powerful 36 kW main drive and a 30-pocket automatic tool changer. If you are looking to get high-quality milling capabilities, consider the Unisign uniport 6000 gantry milling machine we have for sale. Contact us for further details. • Space requirement: approx. 12 x 11 m • Passage: height 1,000 mm / width 1,500 mm • Max torque: 720 Nm • Gearbox: 2-stage, ratio 1:4 • Machining capacities (C45): drilling 120 mm dia / tapping M55 / milling 100 cm³/min • Construction: Gantry design with movable portal bridge and stationary clamping table • Table configuration: Clamping bars in transverse direction with 750 mm spacing (standard plate fields omitted) Djdpfx Anjy A Ifmozjkr • Tool changer: Automatic tool change; 30-pocket chain magazine on the portal column (capable of tool change into the angular head) • Operation mode: Pendulum machining capability • Cooling: Machine cooling unit; water-air heat exchanger integrated into the control cabinet • Coolant system: Operated dry; pre-fitted/ready for coolant use • Maintenance status: Tool magazine and X1/X2 ball screws completely overhauled in 2023; last manufacturer maintenance in 2023 • Installation: Machine recessed and anchored in a foundation pit Additional equipment • Angle boring and milling head, 1 unit, 4,000 rpm, SK50, with Hirth coupling for high accuracy and stability; plus 1 spare unit • Probing: RWP20.50-M probe; plus 1 spare Hexagon RWP 20.50-M probe • Hydraulic clamping device with clamping bridges for axis machining, including hydraulic unit • 1x T-slot clamping field (2500 x 1200 mm) as an alternative to the hydraulic fixture • Chip conveyor: Hinged belt type • Safety fence with Sick light grids • Makrolon curtains on both sides of the bridge (motorized height adjustment) • Separation wall with viewing window • Setup and leveling elements • Diverse spare parts • Documentation included Technical Specification Taper Size SK 50

Condition: new, 16000 kg length 6000 mm width 2500 mm loading area height 700 mm Heavy-duty trailer - industrial trailer - Made in Germany Dkedpfx Anshrrp Rezer - Available immediately from stock Frame: - Frame made of stable profile steel - Platform made of impregnated softwood - Protected all around with a steel edge, statically designed - 6 lashing rings welded on Steering: - The steering takes place via 2 axles with Ackermann steering - the steering drawbar is removable and can be hooked in on both sides - Steering angle approx. 42° - all rotating parts are with maintenance-free slide bearings (lubricated for life) Equipped with ball bearings - Towing eye: 40 mm Ø with wear ring - Fork support height adjustment for better coupling to the towing vehicle Wheels - the trailer is equipped with 4 heavy-duty wheels with elastic rubber covering Ø425mm, total width 300mm and ball bearings.

Condition: new, 10000 kg length 6000 mm width 2000 mm loading area height 650 mm Heavy-duty trailers - industrial trailers, available immediately from stock Frame: - Frame made of stable profile steel - Platform made of impregnated softwood - Protected all around with a steel edge, statically designed - 6 lashing rings welded on Steering: - The steering takes place via 2 axles with Ackermann steering - the steering drawbar is removable and can be hooked in on both sides - Steering angle approx. 42° - all rotating parts are with maintenance-free slide bearings (lubricated for life) Equipped with ball bearings - Towing eye: 40 mm Ø with wear ring - Fork support height adjustment for better coupling to the towing vehicle Dedpst Dqv Uefx Anzjkr Wheels - the trailer is equipped with 4 heavy-duty wheels with elastic rubber covering Ø415mm, total width 200mm and ball bearings.

Condition: like new (used), TOOL FOR ROAD BARRIERS Dksdpfxshylzrj Anzsr LENGHT 6000mm

Condition: good (used), Year of construction: 2010, functionality: fully functional, Unisign Uniport 6000 Year of manufacture: 2010 / Commissioned: 2011 Control: Siemens 840 D Travel ranges: X = 10,000 mm, Y = 1,500 mm Enlarged spindle ram stroke: Z = 1,000 mm Enlarged clearance height: 1,000 mm Clearance width: 1,500 mm Main drive: 36 kW, n = 6,000 rpm, 720 Nm Dsdpfx Asymb Eajnzekr 2-speed gearbox, 1:4 Taper: SK 50 Machining capacity in C45: - Solid drilling D=120mm - Tapping M55 - Milling 100 cm³/min Gantry design with traversing portal bridge and stationary clamping table. Clamping table equipped with transverse clamping beams at 750 mm intervals; standard plate sections eliminated. Hydraulic clamping device with clamping bridges for axle machining, including hydraulic unit Angle drilling and milling head, n = 4,000 rpm, SK 50 High accuracy and stability thanks to Hirth coupling Automatic tool change into the angle head Measuring probe RWP20.50-M Pendulum operation Safety fence with light curtains, Sick brand Clamping table with transverse clamping beams at 750 mm spacing Tool chain magazine on portal column with 30 stations Machine cooling unit Water-air heat exchanger integrated in the control cabinet Unisign remote diagnostics for Siemens Sinumerik 840 D Makrolon curtains on both sides of the portal bridge, motorized height adjustment Partition wall with viewing window Chip conveyor with hinged belt design Mounting and alignment elements included

Condition: used, Size max 470 x 320 mm Weight 520 kg (approx.) Speed max 18.000 c/h Equipment • - special: post code identification Dkodpfx Ansdrhpfozsr

Condition: good (used), Year of construction: 2003, machine/vehicle number: 271537, functionality: fully functional, power: 14 kW (19.03 HP), input voltage: 400 V, input current: 24 A, input frequency: 50 Hz, Equipment: documentation/manual, This machine was previously used in the Aptiv manufacturing plant. It has been professionally decommissioned, carefully disassembled, and securely packed in a wooden crate for safe transportation and storage. Dkedpfx Aezi U Npsnzjr

Condition: new, Year of construction: 2024, operating hours: 50 h, machine/vehicle number: 305, Available: February 2023 Control: Osai X-axis: approx. 3,100 mm Y-axis: approx. 2,100 mm Z-axis: approx. 1,000 mm A-axis: ± 115° Dkedpfx Aewwq Hcenzjr C-axis: ± 360° Clamping table Clamping surface: approx. 3,100 x 2,100 x 213 mm Aluminum with T-slots across every 250 mm Max load: 1000kg distributed over the entire surface 2-axis milling head ST7 Spindle power: 10 kW Spindle speed: max. 24,000 min-1 Torque: 15.3 Nm Tool holder: HSK 63F Tool clamping: pneumatic Blowing air / MMS: outside Drives linear axes Feed speed X and Y axes: up to 50 m/min Z-axis feed rate: up to 30 m/min Color Housing, portal, control cabinet: light gray Z-slider and milling head: orange Additional equipment - 15-way tool changer - Control in a separate, rollable desk

Condition: good (used), Year of construction: 2005, OMGA opti cut IDC000080 - Manufacturer: OMGA - Year of production: 2005 Dkodpfx Ast D Dukjnzer - including table before and after - Control cabinet - Working condition

Condition: new, functionality: fully functional, Year of construction: 2026, control type: CNC control, degree of automation: semi-automatic, actuation type: electric, laser type: fiber laser, Entry-level fiber laser metal sheet&tube cutting machine One machine with two uses. AT series cuts both metal sheets and metal tubes. The modular cutting machine table with stiffeners saves time for disassambly and improves convenience and rigidity. Cutting machine clamping becomes convenient, easy and fast, with 3 seconds at the soonest to clamp and high repeat precision Fast air cutting efficiency increases by 37% when cutting carbon steel. Fiber laser heads are able to detect jutting obstacles to effectively reduce the damage rate and save the maintenance cost of a laser cutter. Angle steel and channel steel cutting are standard with no need for additional installation. Condition: New Djdsh Hd Ddspfx Anzskr Laser Type: Fiber Laser Laser Power: 1000W, 1500W, 2000W, 3000W Cutting Area: 3048*1524mm Cutting Speed: 0-100m/min Positioning accuracy: ±0.03mm Repositioning accuracy: ±0.02mm Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT CNC or Not: Yes Cooling Mode: WATER COOLING

Condition: used, This listing is for the Grant Bio PMS1000 Microplate Shaker The unit is in full working condition and is ready for immediate use Overview of the Grant bio PMS‑1000i Microplate Shaker Applications Ideal for mixing, incubation, and cultivation of biological or chemical samples in disciplines like microbiology, immunology, molecular biology, and biotechnology. Common uses include immunoassays, high-throughput screening, colorimetric testing, and binding assays involving magnetic beads. Improves reproducibility by ensuring proper resuspension of PCR products, aiding in consistent optical density readings and better plasmid DNA yields. Key Features Shaking mechanism: Driven by a brushless, direct-drive motor, providing smooth and reliable motion. Speed range: Adjustable from 150 rpm to 1200 rpm, suitable for both gentle mixing and vigorous agitation. Plate capacity: Supplied with a platform for 2 microplates (standard-depth 96-well or 384-well), with an optional accessory (MPP‑4) for supporting 4 plates. Controls and display: Features a simple dial for speed adjustment, a 4-digit LED display indicating rpm and remaining time, plus a built-in electronic timer (1 min to 24 hours) with automatic shut-off. Secure plate fitting: Uses screw fittings to firmly hold plates in place, minimizing slippage during shaking. Technical Specifications Orbit diameter: 2 mm Dimensions: 90 mm (H) × 205 mm (D) × 220 mm (W) Dkedpfx Aexhfntonzsr Operating temperature: 4 °C to 40 °C Power and consumption: External power supply (AC 120–230 V to DC 12 V), approximately 3.4 W (0.28 A)

Condition: used, This listing is for Nikon Eclipse TS100 Inverted Routine Microscope The unit is in full working condition and ready for immediate use This inverted routine microscope is a high-quality lab instrument manufactured by Nikon (Model: Eclipse TS100). Renowned for its crisp optics and ergonomic design, making it a standard for cell culture inspection and routine lab tasks. It has been sourced directly from a working facility, offering premium performance and dependability for standard laboratory applications while ensuring a cost-effective alternative to purchasing brand new equipment. Transparency Report and Technical Audit: Dsdpfx Anjzqf Irozjkr Software and Media Disclosure: As a Direct-from-Lab asset, any original software media or accessories found with the unit are included as a courtesy. Licensing Notice: We do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory. Source Pedigree: Biotech / Research Facility Condition: Direct-from-Bench (Decontaminated/Original) Integrity: 100% Original Parts (Non-Refurbished)

Condition: used, total height: 2,200 mm, total width: 2,300 mm, total length: 5,400 mm, Colour: Grey Empty weight: 12.000 kg Price: On request What are Presale Items at Second Owner? Presale items are machines that we sell in their current condition ("as-is"). We have purchased these machines based solely on photos and sell them with the information provided in the advertisement. Unfortunately, we do not have additional details, such as exact dimensions or machine specifications. Additionally, these machines are often not yet in stock and have not been inspected by us. These machines are offered at competitive prices, which means the prices are lower than usual, but the risk lies entirely with the buyer. Please carefully review the information in the advertisement before making a purchase. If you have any questions, feel free to contact us! - Documentation available: No Dodjzk Hyiopfx Anzskr - CE certificate present: No - Drive system: Conventional - Number of axes [pcs]: 3 - X-axis travel [mm]: 3300 - Y-axis travel [mm]: 1200 - Z-axis travel [mm]: 1200 - B-axis rotation [°]: 360 - C-axis rotation [°]: 360 - Table length [mm]: 5000 - Table width [mm]: 1200 - Tool holder: ISO50 - Options: Digital readout - Transport dimensions: 5400mm x 2300mm x 2200mm (l x w x h) - Transport weight [kg]: 12000kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: used, total height: 2,200 mm, total width: 2,300 mm, total length: 6,400 mm, Colour: Grey Empty weight: 15.000 kg Price: On request What are Presale Items at Second Owner? Presale items are machines that we sell in their current condition ("as-is"). We have purchased these machines based solely on photos and sell them with the information provided in the advertisement. Unfortunately, we do not have additional details, such as exact dimensions or machine specifications. Additionally, these machines are often not yet in stock and have not been inspected by us. These machines are offered at competitive prices, which means the prices are lower than usual, but the risk lies entirely with the buyer. Please carefully review the information in the advertisement before making a purchase. Dkedpfezkqvnex Anzor If you have any questions, feel free to contact us! - Documentation available: Yes - CE certificate present: No - Drive system: Conventional - Bed milling machine model: Movable column - Number of axes [pcs]: 3 - X-axis travel [mm]: 4300 - Y-axis travel [mm]: 1200 - Z-axis travel [mm]: 1200 - B-axis rotation [°]: 360 - C-axis rotation [°]: 360 - Table length [mm]: 6000 - Table width [mm]: 1200 - Tool holder: ISO50 - Min. spindle speed [rpm]: 10 - Options: Digital readout - Transport dimensions: 6400mm x 2300mm x 2200mm (l x w x h) - Transport weight [kg]: 15000kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Year of construction: 2026, condition: ready for operation (used), travel distance X-axis: 2,500 mm, travel distance Y-axis: 1,210 mm, travel distance Z-axis: 1,200 mm, controller manufacturer: HEIDENHAIN, controller model: TNC 640 HSCI, spindle motor power: 20,500 W, spindle speed (max.): 5,000 rpm, table load: 3,000 kg, number of axes: 5, This 5-axis SACHMAN TS10 bed type milling machine is manufactured in 2026 and brand new. It features an impressive X-axis travel of 2,500 mm, Y-axis travel of 1,210 mm, and Z-axis travel of 1,200 mm. The machine includes a robust table size of 2,700 x 800 mm and a maximum table load capacity of 3,000 kg. If you are looking to get high-quality milling capabilities, consider the SACHMAN TS10 machine we have for sale. Contact us for further details. • machine is brand new • Gooseneck: 1,000 mm • Axis speed (rapid): 25 m/min • Table size: 2,700 x 800 mm • Handwheel: Portable HR 510 • Milling head: KOSMO3 Universal • Spindle taper: SK50 BIG PLUS • Indexing: B/A 0.02°/0.02° (Hirth coupling) Dksdpoyxpmqsfx Anzor • Tool magazine: MRT24 (24 positions), vertical change position • Enclosure: Standard housing (no roof) • Training: 2-day operator course at customer site • Delivery time: Approx. 4 months from order • Warranty: 12 months Additional equipment • Chip management: 2 x screw conveyors along X-axis + additional belt conveyor in Y-direction • Internal cooling: 15 bar through-spindle coolant with bag filter • External blow-out air