Used Stone Crusher for sale (1,686)

Condition: good (used), Haussler Stone Oven Model - INO 2000/4 230 volt power Heavy fire brick baking chamber 122°–608° F temperature range Excellent design Made in Germany Hfodpfx Aevz Dv Tefijn In excellent condition

Condition: like new (used), Year of construction: 2017, caterpillar/verachtert mp318 weight: 1934 kg (complete with jaw and head plate) machine class: 18-25 tons opening time: 1.6 sec closing time: 1 sec Hodpfxjvm Awgs Afisfn complete with c jaw video available neat, well-functioning shears fully checked and tested always large stock of grippers and other attachments if your gripper is not among them, please contact us by mobile, email, whatsapp. price excluding VAT. trade-in/transport possible. we also have a workshop with various welding and turning equipment. we work with the following brands: #verachtert#lehnhoff#smp#eurosteel#GP#oilquick#steelwrist#engcon #beco#kinshoffer#hammer #knikmops#yanmar#kubota#wacker-neuson#houlotte#takeuchi#cat#boma g#atlas#sennebogen#hyundai#iseki#solis#avant#ihi#newholland #gehl#kramer#jcb#weidemann#schaffer#terex#schaeff#manitou#dieci# work ethic#jlg#caterpillar#fuchs#giant#ahlmann#hitachi#komatsu #doosan#kramer#liebherr#volvo#zettelmeyer#merlo#bobcat#snelwisse l#coupler#cw00#cw05#cw10#cw30#cw45#cw55#cw70#kniklader #mobielekraan#wielkraan#excavatorbucket#zijtveld#grabs#grabs#gre iffe r#dehaco#ACDE#vematec#hydraram#pladdet#J&B#overslaggrijper #clamshellbucket#umschlaggreifer#bennes de transbordement##earthmovingmachines #mining #loaders #excavators #frontshovel #surfaceminging #undergroundmining #miningmachinery #goldmine #coalmine #coppermine #ironoremine #diamondmine #mininglife #heavyequipment #miningequipment#recycling #recyclen #recyclage#Kinshofer#recycling#recyclen#recyclage#MultiQuickProz essoren #demolition#demolition #abbruch #démolition#demolition#demolition#abbruch#démolition#demolition #demolition #abbruch #démolition#Combimulti #recycling#recycling#recycling#polypgrab#orangepeelgrab#multiple chalengreifer#GrappinsMultiprises#orange#peel#grab#recycling #demolition#demolition#abbruch#démolition#polypgrab #orangepeelgrab #multiple chalengreifer #GrappinsMultiprises#recycling #recycling #pulverizer #Pulverizers #Pulverisierer #Croyeursfixes#Scrap shears#iron shears#scrapshear#ironshear# Scrap shearing #concrete pulverizer #concrete shear #concretecrusher #concreteshear #Crushers #betonschere #Pincesàbéton#pulverizer#Pulverizers #MultiQuickProcessors #MQP #Multishear #multishear #MultiQuickProzessoren #Combimulti#MultiQuickProcessors#MQP#Multischaar #Scrap shears #iron shears #scrapshear #ironshear #Scrottshearing #Combihydraulique#betonverpulizer#betonschaar #concreteshear#Crushers#betonschere#Pincesàbéton#Pulverisierer#B roye

Condition: new, color: grey, Field of application: Mining Empty weight: 32.000 kg Dimensions (LxBxH): 2200 x 310 x 430 cm Tyre size on axle rear: 225 Tyre tread remainder on axle rear: 100% MOBILE SAND MAKER Feeding Hopper : 10 m3 Crusher Feeding Belt Conveyor 800*9000mm VSI700 Vertical Shaft Impact Crusher 132kw Vibrating Screen 2 Decks 1600x5000mm 11 kw Feedback conveyor 600*8000mm Stockpile Conveyors 600*8000mm Mobile Chassis 2 Axles-Compacible With EU Road Regulations Automation -PLC- with Tablet and PC Controlled Industrıal Paint on 1 Layer Linings-120-140 Micron- Barriers-Ladders-Platfroms Galvanised PLANT DETAIL Production Capacity 40-60 tph 0-5mm Maximum Feeding Size 50mm Feeding Height 3.8 meters Main Configuration VSI Crusher + Vibrating Screen Total Motor Power 165 kW Electric Generator Requirement 350 kVA Weight of the plant 31 Tonnes Sizes of the plant 14(L) x 3 (W) x 4.2(L) meters Chassis Type Single chassis on wheels Production Capacity 100-150 tph Maximum Feeding Size 50mm FEEDER PROPER FOR HEAVY DUTY Dimensions : 900x4100 mm Bunker : 15 m³ Capacity : 150 to 200 tons / hour Grid Length : 1160 mm Main Body Sheet : 20 mm. Weight : 5.5 tons. Number of springs : 111 ea Type of Bypass : Flat grid type (throttle transfer) Grill casting : 16-18 mn. 1,5 cr. Type of Bunker : With flat ramp climbing Anchorage slots : pin click - fit Bypass chute : With rear additional saddle 2-Model : VSI 700 -CR Max Feed : 35 mm. Hard Condition Rotor Diameter : 760 mm. / Off Std. Rotor Rotor Speed : 50-70 m / s. Drive : 132 kW / 1500 rpm. Capacity : 40-60 tons / hour 0-5 sand production at 5-32 mm feed. Total Capacity : 80-120 tons / hour Weight : 8,500 kg Rotor Diamond Inserts (Two-row - 6 pcs Ductile Iron Tungsten Carbide Tipped) Other Wear Parts (2 Molybdenum, 22 Chrome Alloy Castings) Electric Motorized Hydraulic Unit (Used for Belt tensioning and Upper Body Lifting.) One-sided maintenance platform with ladder. Drive pulley for two separate speeds (1400 rpm - 1600 rpm) Vibration sensor switch Maintenance Crane Crusher Feeding Belt conveyor Rated sizes : 800 x 9000 mm Motor power : 7 kw 1500 d/d Power Transmission : Motorized Reducer Drive drum : 273 Vulcanized Rubber Coating Tail drum : Angle process over pipe Body Construction : Sheet Metal Body Hfsdew Hzdqjpfx Afien Rubber Tension System : SNH type sliding bedding Carrier : triplet assembly pedestal Group of turning roll : single hanger system Type of reducer : İ-MAK reducer Band rubber : 5 layers of 10 mm EP-125 eksaş conveyor Drive bearings : UCF type with...

Condition: excellent (used), Technical condition: very good Hodpet Hty Uofx Afiefn Visual appearance: very good Price: On request Please contact Ferdinand Pater for more information

Condition: new, functionality: fully functional, Year of construction: 2025, Aggregate and ballast crusher equipment are used in the crushing and processing of various materials for construction and infrastructure projects. These crushers are designed to break down large rocks, gravel, or stones into smaller pieces, producing aggregates and ballast that are essential components in the construction industry. Here are some key aspects related to aggregate and ballast crusher equipment: 1. Jaw Crusher: - Jaw crushers are commonly used for primary crushing in aggregate and ballast production. They operate by compressing the material between a stationary and a movable jaw. 2. Impact Crusher: - Impact crushers are suitable for shaping and producing fine aggregates. They use impact force to crush the material, making them suitable for various types of rock and ore. 3. Cone Crusher: - Cone crushers are often used for secondary and tertiary crushing in aggregate production. They are efficient for producing well-shaped and finely graded aggregates. 4. Vertical Shaft Impact (VSI) Crusher: - VSI crushers are designed for shaping and producing high-quality artificial sand. They use the "rock-on-rock" crushing principle, where rocks are fed into the rotor to be accelerated and crushed against the stationary anvils. 5. Gyratory Crusher: - Gyratory crushers are primarily used in mining, but they may also be used in the production of aggregates. They have a conical head and a concave surface, which crushes the material between the head and concave. Hsdpfx Aoq Nxrxsfijfn 6. Mobile Crushers: - Mobile crushers, including mobile jaw crushers and mobile impact crushers, provide flexibility and mobility for on-site crushing of aggregates and ballast. They are often used in construction projects where materials need to be processed directly at the job site. 7. Screens and Scalpers: - Screens and scalpers are used to separate different sizes of aggregates after the initial crushing stage. Vibrating screens are commonly employed to classify and separate materials based on size. 8. Conveyors: - Conveyors are crucial for transporting materials between various stages of the crushing process and for stockpiling the final products. They enhance efficiency in material handling. 9. Dust Suppression Systems: - Crushing operations can generate dust, and dust suppression systems are used to minimize environmental and health impacts. These systems may include water sprays or chemical suppressants. 10. Quality Control: - Quality control measures, such as particle size analysis and gradation testing, are essential to ensure that the produced aggregates and ballast meet the required specifications and standards. 11. Environmental Considerations: - Crusher equipment should adhere to environmental regulations, and measures like dust control, noise reduction, and proper waste disposal should be implemented. When selecting aggregate and ballast crusher equipment, factors such as the type of material, required product size, production capacity, and mobility requirements should be taken into consideration. Additionally, adherence to safety and environmental standards is crucial in the operation of crushing equipment.

Condition: used, Year of construction: 2005, operating hours: 7,775 h, 2005 | Kleemann MOBICONE MCO 11 D3 | Used Crusher | 7775 hours 📍Location: France, Brigueuil 🚛 Delivery available to your destination – Use our shipping calculator to estimate transport costs! 💰 Buy Now for EUR 198000 or Make an Offer. Payment at delivery available for an affordable fee (subject to approval)* 👷‍♂️ Inspected by an independent expert 78 inspection points 70 approved ✅ 7 imperfect ℹ️ 1 issues ⚠️ 📌 Inspector's Comment: Hjdpfx Afjxn Iupsijfn Good overall condition of the machine, the wear of the body and paints corresponds to its age but remains very well maintained. The crusher could not be tested due to a hydraulic pump issue. The track assemblies need to be retained. The condition of the conveyors is perfect. The walls of the mix and feed must be planned for replacement. The general condition of the machine is good. 📄 Want to see the full inspection, extra photos, or a video? Tip: The reference "38913 Equippo" is commonly used when looking up more details online. 💡 Why this machine and our service stands out: ✔ Thorough inspection by professionals ✔ Jobsite delivery available ✔ Money-Back Guaranteed ✔ Secure and flexible payment options 🔄 Considering other equipment options? We offer helpful tools and resources for all equipment owners and operators – easily accessible on our platform.

Year of construction: 2013, condition: excellent (used), Robust and compact bridge saw with fixed bridge for cutting stone tiles and slabs up to 800 mm long: Special design of the beam for maximum cutting precision; Hjdpfx Aji Akvvsfiofn Water collection tray with built-in water circulation system for cooling the blade; Robust and compact design. Roller conveyor front Roller conveyor rear Saw blade size: 350 mm Motor power: 2 KW Voltage: 230 Volt Weight: 173 kg Mobile Location: ex stock 54634 Bitburg - immediately available -

Condition: ready for operation (used), Double Roll Crusher AGJ, Roller Pair Used Machine Roller width: 500 mm Roller diameter: 600 mm Engine power: 18,5 kW RPM: 980/min Weight: 3700 kg Hjdpfx Afexnl Hisiofn

Condition: excellent (used), fuel type: diesel, operation weight: 45,500 kg, Year of construction: 2016, operating hours: 6,100 h, Terex Pegson Premiertrak 400 2016 year 6100 hours Inlet 1100x700 mmTerex Pegson Metrotrak 900x600 2016 year 6100 hours Inlet 1100x700 mm Engine Scania DC09 CSS range from 0-65 to 0-150 mm Capacity 150-250 tons per hour depend on material Weight 45 tons Hedpfx Afoxnkkyeisfn Fitted with side conveyor Fitted with overband magnet Fitted with belt scale Machine in great working condition, ready for work like NEW

Condition: used, Please contact ATS Norway for more information Please provide reference number upon request: 19372 Description: Allis Chalmers' cone crusher. Unknown year model. Ready for delivery. Own weight: 1 Hfjdpfxevgx Uhj Afion Model: Chalmers

Condition: new, functionality: fully functional, Year of construction: 2025, For crushing dolomite and phonolite rocks, various types of rock crushing machines can be employed, depending on the characteristics of the rocks and the desired final product specifications. Here are some common types of crushers that may be suitable for processing dolomite and phonolite: 1. Jaw Crusher: - Jaw crushers are commonly used for primary crushing and can handle hard and abrasive materials. They are suitable for both dolomite and phonolite rocks. 2. Impact Crusher: - Impact crushers are versatile and suitable for both primary and secondary crushing. They work by impacting the material with hammers or blow bars, producing a high reduction ratio. Impact crushers can be effective for shaping the final product. 3. Cone Crusher: - Cone crushers are often used for secondary or tertiary crushing. They are suitable for processing harder rocks and can produce well-shaped and fine-grained aggregates. 4. Gyratory Crusher: - Gyratory crushers are used for large-scale primary crushing. They have a conical-shaped head and are well-suited for handling abrasive materials. However, they are less commonly used than jaw or cone crushers. 5. Vertical Shaft Impact (VSI) Crusher: - VSI crushers are suitable for shaping and producing artificial sand. They operate by throwing the material against a set of anvils or impellers to break it down into finer particles. 6. Hammer Crusher: - Hammer crushers are used for crushing softer materials and may be suitable for rocks like phonolite. They operate by applying force to the material, causing it to break along natural fault lines. 7. Roll Crusher: - Roll crushers are used for reducing the size of friable materials. They consist of two counter-rotating rolls that compress the material between them. 8. Screening Equipment: - After the initial crushing stage, screening equipment such as vibrating screens may be used to separate different sizes of crushed material. 9. Dust Suppression Systems: - Crushing operations can generate dust, and dust suppression systems are used to minimize environmental and health impacts. 10. Mobile Crushers: - Mobile crushers, including crawler mobile crushers, offer flexibility and mobility, allowing them to be used directly at the quarry or job site. When selecting a crusher for dolomite and phonolite rocks, consider factors such as the hardness of the material, the desired final product specifications, and the production capacity required. Additionally, it's important to integrate the crushing process into an overall plant design that may include screening, conveying, and washing equipment depending on the specific needs of the application. Hedpfx Afjq Nyuvjijfn

Condition: used, Year of construction: 1968, Serial number: x Please contact ATS Norway for more information Please provide reference number upon request: 20905 Description:Kue-Ken 42x36 jaw crusher from 1968 for sale on behalf of customer.Jaw opening: 1067 x 915 mm.Weight: approx. 24 tons.Sold as is. Own weight: 24000 Model: kjeftknuser Hfedpfx Aswwqd Iefijn

Condition: new, functionality: fully functional, Year of construction: 2025, The VSI (Vertical Shaft Impactor) sand making machine is a type of crusher designed to accelerate the crushing of aggregate and produce cubical-shaped sand. It is widely used in the field of construction, mining, and other similar industries. Here are key features and information about VSI sand making machines: 1. Working Principle: - The VSI sand making machine operates on the principle of stone impacting stone or stone impacting iron. Material is fed into the center of the rotor, which accelerates to high speed to throw the material outward against a wear-resistant lining. 2. Rotor and Crushing Chamber: - The rotor is a crucial part of the VSI machine and is often designed with multiple pockets to facilitate material throwing and crushing. - The crushing chamber is lined with wear-resistant materials to endure the impact and abrasion during the crushing process. 3. Feedstock Control: - The feedstock (material to be crushed) can be controlled using a variable speed control system, allowing for adjustments to achieve the desired particle size. 4. Material Types: Hjdpeq Nd U Hsfx Afisfn - VSI machines are suitable for processing various materials, including hard and abrasive materials such as rocks, ores, and minerals. 5. Cubical Shaping: - One of the significant advantages of VSI machines is their ability to produce cubical-shaped end products, which is desirable for high-quality concrete and asphalt production. 6. Adjustable Discharge: - The machine usually has an adjustable discharge opening, allowing for customization of the final product size. 7. Sand Production: - VSI sand making machines are primarily used to produce manufactured sand (M-sand) and crushed sand, which are essential components in the construction industry. 8. Maintenance: - Regular maintenance is required to ensure optimal performance and extend the machine's lifespan. This includes checking wear parts, lubrication, and addressing any issues promptly. 9. Variations: - Different manufacturers may offer variations of VSI machines with unique features or specifications. Common variations include open rotor and closed rotor designs. 10. Environmental Considerations: - VSI sand making machines are generally considered environmentally friendly as they produce less dust and noise compared to traditional crushers. 11. Manufacturers: - Well-known manufacturers produce VSI sand making machines, and it's crucial to choose a reputable supplier with a track record of providing reliable equipment. When considering a VSI sand making machine, factors such as feed size, capacity, and the desired end product specifications should be taken into account. Additionally, check the reputation of the manufacturer, and consider customer reviews and feedback regarding the specific model you are interested in.

Condition: used, Year of construction: 2006, Please contact ATS Norway for more information Please provide reference number upon request: 20763 Specifications: Approx. 2006-2007 model (stated by owner) Total hours: 13,800 (can increase) Chassis (see pictures) Central grease, some manual points Comes with an extra jaw (recently replaced) Hanging sieve Tape and rolls (see pictures) Main band completely overhauled with new band and side edges Daily operations Video is attached Deutz engine (provided by owner) Ready for delivery Notes: Hsdpfx Afjwvzrajijfn An output psb nd is worn Own weight: 48000 Model: 1208 knuser

Condition: used, Year of construction: 2021, Please contact ATS Norway for more information Please provide reference number upon request: 20858 Model: MAC-S H 28–70 Design: Stationary Chamber: Wear plates in Hardox on bottom and side walls Rotor: Single-shaft with 700 mm diameter and 2800 mm length 140 reversible knives (Bano Formula) – 60 x 60 x 30 mm Variable speed: 140–200 RPM (VFD-controlled) Automatic rotation control with alarm system Reinforced with 600 HB wear protection Self-cleaning bearing system with double roller and thrust bearings Cutting Technology: Precise, progressive cutting for high efficiency 1 row of fixed, adjustable and reversible counter knives Quick access to cutting chamber via hydraulic rear door Hfodpfewvzqpjx Afien Feeding System: Hydraulic pusher for smooth and controlled material flow Fully adjustable via user-friendly touchscreen Discharge System: Replaceable screens (Hardox Ø 50 mm) Easy front access with hydraulic support for fast replacement Drive System: Mechanical transmission with belts and pulleys Electric motor: 315 kW (main) + 7.5 kW (auxiliary) 400V – 50Hz CE-approved control panel with: PLC Touchscreen Customizable software Internet module for remote support Remote control included Weight: Approx. 26,000 kg Description: The MAC-S H 28–70 is a stationary industrial shredder, well suited for metal recycling and waste processing.Manufactured in 2021 and first commissioned in May 2022.It has run 3,328 hours, primarily used for shredding pipes.Electric cabinet is included.

Condition: used, Year of construction: 1980, Please contact ATS Norway for more information Please provide reference number upon request: 21530 Specifications:Manufactured around 1980In operation and fully functionalElectrical cabinetIncludes Svedala 1136 secondary crusherDelivery by agreement Hfjdpoxm Tgnofx Afien Own weight: 111 Model: Årbra 1336 spindelknuser med deleknuser

Condition: used, Year of construction: 2009, Please contact ATS Norway for more information Hfedpfxsv U Sm Ho Afien Please provide reference number upon request: 19928 2009 model Hour unknown King pin, 2 axle chassis   Own weight: 1 Model: Nordberg NW 550 GP

Condition: used, Year of construction: 2008, Please contact ATS Norway for more information Please provide reference number upon request: 19933 2008 model Hour unknown King pin, 3 axle chassis Own weight: 1 Hedpfov U Sq Sex Afijfn Model: Nordberg NW 125

Condition: used, Year of construction: 2019, operating hours: 7,900 h, Serial number: 81180xxxx Please contact ATS Norway for more information Please provide reference number upon request: 18539 Specifications: - 2019 model. - Hours: approx. 7900. - Weight: 47,040 kg. - 3 deck sight and return. - crushing unit: Sandvik CH430. - Webasto with app control. - Raised undercarriage. - Extension of return link with original kit from dealer. - Central grease - Remote control Hsdjvgy Sbjpfx Afiefn - Service history - New main axle and shock cone Description: Keestrack H4e Concrusher with 7900 hours. Overhaul of crusher after 7450 hours. This job is well documented and the distributor of the crusher has supported the delivery and procurement of parts. Ready for delivery. Hours: 7900 Own weight: 47040 Total Weight: 47040 Model: H4E

Condition: used, Please contact ATS Norway for more information Please provide reference number upon request: 15024 Complete crushing plant for sale Metso 125 jaw crusher, 2008 model Metso GP 550 crusher, 2009 model Metso GP 300 crusher, 2012 model Locomotive A 132 coarse gauge, 1991 model Sizer, DP 2016 sight, 2016 model Terex TSH 7203-38 screen, 2013 model Metso FS 353 sieve, 2009 model Hjdpjvg Nk Hefx Afisfn 34 conveyor belts, varying length and width 5 pcs Band weights Control/control room, 1 piece 20-foot container Electrical room/distribution room, 2 20-foot containers The facility is in daily use. See video.   Own weight: 1 Model: m/ matestasjon, sikteverk, transportbånd og kjeftknuse

Condition: used, Year of construction: 2004, Serial number: 3xxxx Please contact ATS Norway for more information Please provide reference number upon request: 20508 Specifications: - 2004 model - C145 jaw crusher - Overhauled - Line drilled - All bearings replaced - Pendulum is assembled - New thrust bearings Hfjdpfewph E Hsx Afion - New cylinder for opening jaw - New press sleeves - New starter cabinet - Crushing plates can be included if desired for an additional price - Ready to deliver Description: We have a 2004 Metso c145 Crusher (overhauled) for sale. Everything has been replaced and there are new bushings, bearings and new control cabinet and cylinders. Everything works as it should but needs to be assembled. Ready to deliver

Condition: used, Year of construction: 1987, Please contact ATS Norway for more information Please provide reference number upon request: 20513 Specifications: - 1987 model - Number of hours unknown - Gearbox in need of overhaul - Feed box - Conveyor belt - Flywheel - Jaws can be included for an additional charge - Starts and runs - Faults and defects occur - Ready for delivery Description: Hfjdpowphlmefx Afien We have a 1987 Haahjem ctc 110 Jaw crusher for sale. Gearbox in need of overhaul. Crushing jaws can also be included for an additional charge. Services are performed by the owner on an ongoing basis. Faults and defects occur and some additional costs must be expected. Ready for delivery

Condition: used, Year of construction: 2005, operating hours: 8,500 h, Please contact ATS Norway for more information Hedpfx Afswdvcveijfn Please provide reference number upon request: 20211 Specifications: Model year: 2005 Operating hours: approx. 8,500 Engine replaced at approximately 4,000 hours Chassis: See pictures Additional equipment: Includes extra cloths, straps and spare parts Ready for delivery Description:Haahjem 1208 crusher from 2005 with a total operating time of approx. 8,500 hours. Engine was replaced at approx. 4,000 hours. The machine has been in use somewhat this winter and, according to the owner, should function well. The crusher is sold with various accessories, including cloths, belts and casings. The machine is ready for delivery. Hours: 8500 Own weight: 1 Model: 1208S

Condition: used, Year of construction: 2016, operating hours: 7,635 h, Serial number: CB00xxxx Please contact ATS Norway for more information Please provide reference number upon request: 20363 Specifications: - 2016 model - 7635 Hours - 67600 kg - Good with crushing plates again - Side conveyor - Rubber in feeder - Central lubrication - Volvo engine - 315 kW - Magnet - Feed box - New batteries - Ready for delivery Description: We have a 2016 Sandvik UJ440i crusher w/ side conveyor and magnet for sale. Maintenance and services have been taken continuously. Everything works as it should according to the owner. Errors and defects may be found. Ready for delivery Hours: 7635 Hfedpowi Rp Usfx Afisn Own weight: 67600 Total Weight: 67600 Model: UJ440I

Condition: used, Year of construction: 2019, operating hours: 11,169 h, Serial number: 18xxxx Please contact ATS Norway for more information Please provide reference number upon request: 18852 Specifications: Hjdpsvg A D Tsfx Afiefn Year: 2019 Hours: approx. 11,200 Weight: ~49,000 kg Power: 310 kW Full service history (Pon Equipment) Fine cone crusher Integrated screening unit Includes screen meshes Output fractions: 0–4 mm, 4–8 mm, 8–16 mm Large feed hopper with conveyor Lights Ready for delivery Description:High-capacity Metso LT220D cone crusher with integrated screen.Compact, mobile and easy to set up – takes approx. 30 minutes after transport.Can handle: 0–160 mm material through the screen 32–160 mm material directly into the crusher Well-maintained through service agreement with Pon.Includes several screen meshes and spare parts.Ready for immediate delivery. Hours: 11169 Own weight: 49000 Total Weight: 49000 Kw: 310 Model: Lokotrack LT220D Finknuser m/ sikt, matekasse og transportbånd