Used Horizontal Rotary Table for sale (50,505)

Condition: used, Year of construction: 2006, Technical details: table load: 2,2 t table diameter: 2500 mm Total power requirement: 9,6 kW max. table load: 22.000 daN / 2200kg table rotating: links/rechts Grad table - inclinable: 0 - 120 Grad table height: 1700 mm machine weight approx.: 12000 kg connected load: ca. 5,0 kVA dimensions LxWxH: ca. 4,5 x 2,5 x 2,3 m Ijdpsu Nkx Iefx Aabjtn Welding positioning turn-tilt table developed and manufactured by Müller Opladen ARC KON EWeding GmbH. Machine frame solid, welded steel construction with ball-bearing tilting device Table with centering grooves and T-slots for M24 according to DIN 650. Infinitely variable rotary drive from 0.05 - 1.0 rpm. Height to center of swivel axis 1700 mm hydr. tilt adjustment, infinitely variable from 0 - 120° Drive is designed for a torque of approx. 40,000 Nm at the turntable Accessories: 1x 2-row foot switch 1x remote control 1x working platform *

Condition: good (used), Year of construction: 2004, Engel INSERT 200H/40 Control: CC100 Condition: fully funtional Itedetrhv Sepfx Aabjn Clamping force: 400 kN Opening stroke: 300 mm Ejector force: 20 kN Ejector travel: 100 mm Opening max. : 570 Opening min. : 270 Platen size: 590x340 mm Screw: 25 mm Screw length: 140 mm Injection volume: 69 cm3 Injection pressure: 2090 bar Weight: 5400 kg Pump drive power: 15 kW

Condition: good (used), Year of construction: 2001, Robot with aggregates, rotary table and housing Please contact us if you are interested ! Ijdep E Db Tepfx Aabstn

Condition: ready for operation (used), Positioning table, welding rotator, rotary work table, Used machine Itedpfxew Havfj Aaben Manufacturer: Weiss GMBH Type: TC 700 T Overall dimensions: Width: 870 mm Depth: 900 mm Height: 820 mm Weight: 871 kg Electrical specifications: 400V; 6.8A; 3.4 kW Table diameter: 700 mm

Condition: good (used), Reversible clamp, 4th axis, rotary table, rotary dividing table, controlled rotary table, dividing attachment, dividing head, rotary indexing table rotary coupling -Manufacturer: Fibro, Fibroplan rotary table with drive -Type: NC1.03.0340.1.1.04.04 -Table diameter: 340 m -Clamping: hydraulic -Drive: Indramat servo motor type 112B-0-LD-4-C/180-A-0/Wi533LX/S011 -Number: 2x round table available (1 x with base plate) -Price per piece -Dimensions: 660/640/H550 mm (with base) Itodpfx Aehvtcbjaben -Weight: 420 kg (with base plate) /pc.

Condition: excellent (used), REF: MM6190 1 x Lazy susan / rotary packing table with poly-top and on height-adjustable feet. Iedpfx Ajxf D Rboabotn Technical specification ⚙️ ✅ Diameter - 1500mm.  ✅ Fixed speed.  ✅ Electrical requirements - 1 phase.

Condition: used, Year of construction: 2007, table length 3000 mm table width 2000 mm table load 25 t longitudinal adjustment 1500 mm rapid traverse 6 m/min total power requirement 12 kW weight of the machine ca. 16 t Iodsw Rrbtopfx Aabetn dimensions of the machine ca. 4 x 3 x 1,2 m Table has hydrostatic guideways and SPS (Siemens) control.

Condition: excellent (used), Year of construction: 2006, functionality: fully functional, machine/vehicle number: 702283, total height: 273 mm, total length: 515 mm, rotary table diameter: 200 mm, EXACT NCT-200 Rotary table (Taiwan) Year : 2006 Itodpfxownwx Ho Aabjn Turntable ⌀ : 200mm Through Hole : ⌀40 Fanuc motors Weight : 75kg

Condition: new, Year of construction: 2025, Premade pouches packaging/filling and closing machine, rotary operation with 8 working positions. Suitable for flat pouces and doypack style pouches with/without zipper or spout. Easy operation through touch screen and SIEMENS PLC, frequency conversioin for speed adjustment, no-pouch- (or no open pouch) no-filling/seal function. Motorized bag width adjustment, oil free plastic bearings, all product or bag contacting parts are made of stainless steel (SS304). Can be used with all kinds of infeed/dosing modules (optional) to pack granulate like products, liquids, pastes, powdes, etc. Suitable for a wide range of film materials like compound/monolayer PE, PP, paper, etc. (please ask for details). Bag infeed vertically with hopper (for flat bags), optionally: horizontally infeed, especially for zipper or spout bags. Sucking unit to open all kind of bags with thinner film material. Suitable for the following bag dimensions: L(200-450)xW200-300)mm. - Technical specifications: max. speed of the machine in neutral: 30 cycles/minute; power: 380V, 4.0kW; compressed air: 0.6m³, 6bar; machine dimensions: L2500xW1800xH1800mm; weight: 1400kg. That machine/system is available in different versions for different packaging sizes and with different packaging speeds. Iodpfx Asv Nlmveabetn Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: excellent (used), Rotary indexing table Turntable Rotary drive Welding turntable Positioning table Clamping plate Grid plate EXPERT TÜNKERS TYPE: EDH1370/0010/flex Itjdpfovawk Ijx Aaben Rotary indexing table / positioning table with control cabinet including frequency inverter and Pilz PLC control. Load capacity: 25 tons Table diameter: 112 cm Overall height: approx. 420 mm Dynamic drive torque: 25,000 Nm Static axial load: 220,000 Nm Static radial load: 100,000 Nm Static tilting moment: 50,000 Nm Weight: approx. 1,700 kg One additional EXPERT TÜNKERS rotary drive unit is available. Additionally, 4 WEISS CR700 rotary drives with matching control cabinet, frequency inverter and PLC control are available. The Weiss turntables can optionally be supplied with a hexagonal clamping plate, 2500 mm x 2500 mm, thickness approx. 52 mm (see last pictures). The offer price does not include the clamping plate. For further details or enquiries regarding the purchase of multiple rotary drives: please contact us. Condition: see pictures and item description. Collection is possible. All dimensions are approximate. All information provided to the best of our knowledge but without guarantee. Subject to prior sale. Shipping costs are indicative and may vary depending on distance and unloading options. The items can be collected in person or shipped at the buyer's expense. The listed sale price is net, plus VAT. Warranty basis: Due to wear and tear of used parts, items are generally sold as defective—for spare parts only, to traders/commercial customers. By submitting an offer, the buyer accepts this as the basis of the sales contract.

Condition: used, Welding turntable - tilting turntable with hydraulic tilting motion Welding positioner with faceplate PROTARC - ZAAR & Co. Model PF-DF 3000 Serial No. 3620 Year of manufacture: 1985 Itjdpepy Uz Defx Aaben Load capacity: 3,000 kg Faceplate size: Ø 1100 mm (950 x 950 mm) Faceplate rotation speed: 0.05 - 1.25 rpm Minimum speed: 1 revolution in 10 minutes (tested) Maximum speed: 1.25 revolutions in 1 minute (tested) Table tilt range: 0 - 110° Table height vertical: 1,180 mm Table height horizontal: 940 mm Welding current transmission: 800 Amp. Table drive motor power: 2.2 kW Hydraulic motor power: 1.1 kW Power supply: 380 Volt, 50 Hz - Manual control switch for faceplate rotation direction and table speed - Foot switch for clockwise/counter-clockwise rotation and stop - Hydraulic tilting function with 2 hydraulic cylinders - Speed control via frequency inverter Required space (L x W x H): 1,700 x 1,400 x 1,180 mm Weight: 1,600 kg Very good condition

Condition: new, Year of construction: 2025, Filling and capping machine for filling liquids and pastes into stand-up pouches (doypacks) with spout. Suitable for premade doypacks with a corner spout or a spout on top. The rotary machine has filling units equipped with two filling heads each for liquid filling and two heads each for positioning and closing the spout lids. Additional equipment: feeding lift for the spout caps, external module for CIP cleaning, air cleaning system for inner area of the machine. Relevant electronic components from Schneider and Omron, PLC and touch screen from SIEMENS, pneumatic components from AIRTAC. - Specifications: Filling range: max. 3000ml; number of filling heads: 6; max. number of machine cycles in neutral: 26 cycles/min; current: 220/380V, 2.5kW; air pressure and consumption: 5-7bar, 0.7m³; machine dimensions LxWxH: 2600x1630x1900mm; weight: 1600kg. Itedjv Nlngepfx Aaben Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: used, Rotary indexing table, rotary indexing table with 16 stations Rotary indexing machine + TOX hydraulic press Special rotary indexing machine with multiple assembly stations Production and assembly line with rotary indexing system From special machinery manufacturer "AKE-technologies GmbH" Serial number: Order number: 11111 Itjdjgd D U Espfx Aabsn Year of manufacture: 2012 - large rotary indexing table WEISS type TC500, with 16 stations - pressing station with TOX power pack - vibratory feeder - conveyor belts - testing stations - some stations still visible in the photos but already dismantled Required space L x W x H approx. 3500 x 2750 x 2300 mm Net weight approx. 3000 kg All in as-new condition – the system was never used in series production.

Condition: new, Year of construction: 2025, Premade pouches packaging/filling and closing machine, rotary operation with 6 working positions. Suitable for flat pouches and doypack style pouches. Easy operation through touch screen and SIEMENS PLC, frequency conversioin for speed adjustment, no-pouch- (or no open pouch) no-filling/seal function. Motorized bag width adjustment, oil free plastic bearings, all product or bag contacting parts are made of stainless steel (SS304). Can be used with all kinds of infeed/dosing modules (optional) to pack granulate like products, liquids, pastes, powdes, etc. Suitable for a wide range of film materials like compound/monolayer PE, PP, paper, etc. (please ask for details). Bag infeed vertically with hopper (for flat bags), optionally: horizontally infeed. Sucking unit to open all kind of bags with thinner film material. Suitable for the following bag dimensions: L(100-350)xW(100-210)mm. - Technical specifications: max. speed of the machine in neutral: 45 cycles/minute; power: 380V, 2.5kW; compressed air: 0.6m³, 6bar; machine dimensions: L2214xW1850xH1640mm; weight: 1000kg. Itedsv Nlmcopfx Aabon That machine/system is available in different versions for different packaging sizes and with different packaging speeds. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: used, Univ. swivel-tilt-rotary table Add-on table for Univ. tool milling machine Itjdsgp T D Nepfx Aabon table size 630 x 250 mm Groove width 14 mm Rotatable and tiltable +/- 30 Swiveling +/-45 - 4x T-slot Weight approx. 120 kg

Year of construction: 2025, condition: new, Premade pouches packaging/filling and closing machine, rotary operation with 6 working positions. Suitable for flat pouches and doypack style pouches. Easy operation through touch screen and SIEMENS PLC, frequency conversioin for speed adjustment, no-pouch- (or no open pouch) no-filling/seal function. Motorized bag width adjustment, oil free plastic bearings, all product or bag contacting parts are made of stainless steel (SS304). Can be used with all kinds of infeed/dosing modules (optional) to pack granulate like products, liquids, pastes, powdes, etc. Suitable for a wide range of film materials like compound/monolayer PE, PP, paper, etc. (please ask for details). Bag infeed vertically with hopper (for flat bags), optionally: horizontally infeed. Sucking unit to open all kind of bags with thinner film material. Suitable for the following bag dimensions: L(200-450)xW(200-300)mm. - Technical specifications: max. speed of the machine in neutral: 30 cycles/minute; power: 380V, 3.5kW; compressed air: 0.6m³, 6bar; machine dimensions: L2500xW1800xH1800mm; weight: 1200kg. That machine/system is available in different versions for different packaging sizes and with different packaging speeds. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty. Itsdpjv Nlmijfx Aabjn

Condition: used, Cross table with mounted rotary table and stepper motor drive Rotary table, dividing attachment Precision positioning systems UHL Cross table UHL type KT5-NSOC Serial no.: 0008002 Table size: 145 x 145 mm Construction height: 62 mm Travel: 50 mm per axis Straightness/flatness: 5 μm - Drive per axis by 2-phase hybrid stepper motor, type ZSS 33.200.1,2 - Manual adjustment Ijdow E Nw Ajpfx Aabotn Dimensions (cross table) L x W x H: 200 x 200 x 62 mm Very good condition Rotary table UHL type B80 DT as dividing head Serial no.: 00080002 Rotary table: Ø 74 mm Construction height: 40 mm - Drive by 2-phase hybrid stepper motor, type ZSS 33.200.1,2 - Manual adjustment Dimensions (rotary table) L x W x H: 92 x 80 x 40 mm Dimensions with mounted rotary table L x W x H: 200 x 200 x 102 mm Weight: approx. 3 kg Very good condition

Condition: new, Year of construction: 2025, Filling and capping machine for filling liquids and pastes into stand-up pouches (doypacks) with spout. The rotary machine is especially used for filling all kinds of liquids such as water, juices, sauces such as soy sauce, salad dressings, tomato sauce or liquids with high viscosity such as barbecue sauces/BBQ sauces, honey, up to pasty products such as peanut butter, fruit jam, nut nougat cream etc. The filling and capping machine is equipped with six filling heads for liquid filling and with six heads each for positioning and capping the spout lids. The production process is fully automated from bag feeding, filling, cleaning of the nozzles, feeding the spout lids via lift and capping them, to the output of the final products. To ensure the exact filling volume, the liquid level is constantly monitored. PLC control, touch screen operating monitor (menu available in different languages e.g. English, German etc.). Suitable for premade doypacks with a corner spout or a spout on top. - Specifications: Filling range: max. 150ml (can be customized); number of filling heads: 6; max. number of machine cycles in neutral: 18 cycles/min (corresponds to max. 108 bags/min); current: 220/380V, 3P, 1.5kW; air pressure and consumption: 5-7bar, 0.65m³; liquid contact parts are made of AISI 316 stainless steel, non-contact parts are made of AISI 304 stainless steel; machine dimensions LxWxH: 1800x1150x1950mm; weight: 1000kg. Itodpfsv Nlm Nex Aabjn Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: used, Factory-refurbished Surface Grinding Machine GEIBEL & HOTZ Type FS 60 AC Machine No. 2012190398 Year of manufacture: 1998 - 2025 Completely overhauled by Stange Werkzeugmaschinen in 2025 Electromagnetic clamping plate 600 x 400 mm Table clamping surface 960/620 x 400 mm Table longitudinal travel max. 660 mm Grinding width 400 mm Cross travel max. 430 mm Distance spindle center to magnetic plate max. 425 mm Table speed 2 - 28 m/min stepless Grinding wheel dimensions Ø 300 x 50 x 76 mm Manual vertical infeed 1 graduation = 0.002 mm Manual cross feed 1 graduation = 0.01 mm Power connection 400 Volt, 50 Hz - Electromagnetic clamping plate GEIBEL & HOTZ, type HPM 600 x 400, overall height 99 mm - Automatic depth infeed for planar and plunge grinding with actual value digital display - Depth feed setting via decade switch - Cross infeed for surface grinding, motorized or manual via handwheel - Hydraulic longitudinal table movement - Central lubrication for table longitudinal, Y+Z axis movements, and feed screws - Mounted grinding wheel Ø 300 mm (actual Ø 290 mm) Itedpfxew Hhbce Aabjn - Separate electrical control cabinet - Hydraulic unit integrated in machine base - Coolant system with paper band filter - Machine mounted for transport on transport pallet Required floor space (L x W x H) 2850 x 2250 x 2500 mm Alternative floor space (L x W x H) 3000 x 2400 x 2500 mm Weight approx. 2 tons (complete) Very good condition – fully overhauled by Stange Werkzeugmaschinen

Condition: new, Year of construction: 2025, Filling and capping machine for filling liquids and pastes into stand-up pouches (doypacks) with spout. The rotary machine is especially used for filling all kinds of liquids such as water, juices, sauces such as soy sauce, salad dressings, tomato sauce or liquids with high viscosity such as barbecue sauces/BBQ sauces, honey, up to pasty products such as peanut butter, fruit jam, nut nougat cream etc. The filling and capping machine is equipped with six filling heads for liquid filling and with six heads each for positioning and capping the spout caps. The production process is fully automated from bag feeding, filling, cleaning the spouts, feeding the spout caps via lift and capping them, to the output of the final products. To ensure the exact filling volume, the liquid level is constantly monitored. PLC control, touch screen operating monitor (menu available in different languages e.g. English, German etc.). CIP system and UV sterilization lamp included. Suitable for pre-made doypacks with corner spout or spout on top. - Specifications: Spout design: double ring spout; filling range: 50 - 500ml (adjustable); number of filling heads: 6; max. number of machine cycles in neutral: 16 cycles/min (corresponds to max. 100 bags/min); current: 220/380V, 3-phase, 2.5kW; air pressure and consumption: 6-7bar, 0.7m³/min; liquid contact parts are made of SUS 316 stainless steel, non-contact parts are made of SUS 304 stainless steel; machine dimensions without bag feeding belt: L2600xW1830xH2050mm; bag feeding belt dimensions: L2000xW400xH1500mm; weight: 1700kg. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty. Itedpfov Nlnaex Aabon

Condition: used, Orbital riveting machine Double riveting automatic with rotary indexing table DUNKES type DN 4 with SIEMENS control Machine No. P 81 - 5458 Year of construction 1982 / 2009 Rivet shank diameter max. 12 mm Tool shank diameter 16 mm Throat depth 190 mm Rivet head stroke per riveting unit approx. 60 mm Rivet spindle speed approx. 1400 rpm Mounting height tool - counter tool max. 80 mm Compressed air requirement 6 bar Motor power per riveting unit 1.1 kW Power supply 380 Volt, 50 Hz - Rotary indexing table with servo drive, step size programmable via Siemens PLC control - Double riveting unit adjustable in the machine frame towards rotary table - Table diameter Ø 295 mm for accommodating round workpieces - Pneumatic riveting stroke movement - Riveting unit adjustment via geared motor with leadscrew, positioning via adjustable microswitch - Control system modernized and rotary table drive converted to servo in 2009 - New electrical control cabinet with Siemens Simatic Panel - year 2009 - Riveting time infinitely programmable - Riveting pressure continuously adjustable via pressure gauge - Micrometer stop for stroke limitation of the opposing riveting units 0-60 mm Itedsdzp T Nspfx Aaben Space requirement L x W x H 3200 x 1250 x 2400 mm Weight approx. 2500 kg Good condition The machine was used for riveting segment saw blades from Ø 400 to Ø 2000 mm. The segments were manually placed onto the carrier disc and fixed with straight rivets. The opposing riveting units rivet the pins simultaneously from both sides. The controlled table automatically rotates to the next working position. Ideal for saw blade manufacturers and repair shops. Or for constructing a custom special-purpose machine.

Year of construction: 2025, condition: new, Premade pouches packaging/filling and closing machine, rotary operation with 8 working positions. Suitable for flat pouches and doypack style pouches with/without zipper or spout. Easy operation through touch screen and SIEMENS PLC, frequency conversioin for speed adjustment, no-pouch- (or no open pouch) no-filling/seal function. Motorized bag width adjustment, oil free plastic bearings, all product or bag contacting parts are made of stainless steel (SS304). Can be used with all kinds of infeed/dosing modules (optional) to pack granulate like products, liquids, pastes, powdes, etc. Suitable for a wide range of film materials like compound/monolayer PE, PP, paper, etc. (please ask for details). Bag infeed vertically with hopper (for flat bags), optionally: horizontally infeed, especially for zipper or spout bags. Sucking unit to open all kind of bags with thinner film material. Suitable for the following bag dimensions: L(100-350)xW100-210)mm. - Technical specifications: max. speed of the machine in neutral: 45 cycles/minute; power: 380V, 3.0kW; compressed air: 0.6m³, 6bar; machine dimensions: L2500xW1800xH1800mm; weight: 1100kg. Iodpfxjv Nlmpo Aabotn That machine/system is available in different versions for different packaging sizes and with different packaging speeds. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: used, Single-column hydraulic press SCHÖN type FES / C 7 Machine no. No. 4281 Year of construction 1995 Pressure force 7 ton. throat 170 mm Projection round cycle station 60 mm Table size 310 x 200 mm Rotary indexing table Ø 400 mm, with 12 indexing stations Plunger surface approx. Ø 100 mm Plunger plate 315 x 200 x 35 mm Ram stroke 100 mm Installation height rotary table - ram plate max. 130 mm Table height above floor 890 mm Ram speed rapid traverse downwards approx. 300 mm/sec. Ram speed rapid traverse upwards approx. 300 mm/sec. Ijder I E Itepfx Aabetn Ram speed Working speed approx. 30 mm/sec. Drive power 1.5 kW Mains connection 380 Volt, 50 Hz Tank capacity approx. 50 liters hydraulic oil - Rotary indexing control via SIEMENS S7- 1200 - GECHTER pneumatic rotary indexing table with 12 indexing stations - Mechanically adjustable fixed stop - Adjustable pressure holding time in the UT - electrical 2- manual operation Space requirement L x W x H 1450 x 850 x 1900 mm weight 700 kg good condition

Year of construction: 2025, condition: new, Filling and capping machine for filling liquids and pastes into stand-up pouches (doypacks) with spout. Suitable for premade doypacks with a corner spout or a spout on top. The rotary machine has two filling heads for liquid filling and two heads each for positioning and closing the spout lids. Additional equipment: feeding lift for the spout caps, external module for CIP cleaning, air cleaning system for inner area of the machine. Relevant electronic components from Schneider and Omron, PLC and touch screen from SIEMENS, pneumatic components from AIRTAC. - Specifications: Filling range: max. 500ml; number of filling heads: 2; max. number of machine cycles in neutral: 16 cycles/min (corresponds to max. 33 bags/min); current: 220V, 1.5kW; air pressure and consumption: 5-7bar, 0.65m³; machine dimensions LxWxH: 1990x1300x1980mm; weight: 1500kg. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty. Itsdsv Nlm Aepfx Aabsn

Condition: used, Rotary table, 180° index table, rotary table with aluminium plate Positioning table, round table, 180° indexing round table Assembly table, tilting table Rotary plate: Ø 1080 mm Construction height to top of rotary plate: 630 mm - Rotary plate made of 25.5 mm thick aluminium sheet with various bores - Very stably mounted rotary table, manually rotatable - 2 indexing positions at 180°, manually unlockable via foot pedal - Stop dampers under the rotary plate for positioning - Very sturdy steel subframe - Steel subframe flange plate L x W x H = 600 x 600 x 20 mm Required space Ø x H: 1080 x 630 mm Weight: 210 kg Good condition 2 pieces available, price per piece Itjdpfjr Dg Rdex Aabsn