Ott Tornado nakup rabljenega (76)

Stanje: zelo dobro (rabljeno), Leto izdelave: 2007, Edge thickness: 0.2 - 12 mm Workpiece thickness: 8 - 52 mm Minimum workpiece width: 70 mm Minimum workpiece length: 150 mm Automatic edge magazine Jointing milling unit: 2 x 1.5 kW, controlled feed End trimming unit: 2 x 0.3 kW Flush milling unit: 2 x 0.7 kW, one-sided tracing Fine milling unit: 2 x 0.35 kW, tiltable at 15/30/45 degrees Fine milling unit: 2 x 0.3 kW, R=2, double-sided tracing Corner copying unit: 2 x 0.3 kW Scraper unit, automatically controlled Surface scraper unit with fine adjustment feature Buffing unit: 2 x 0.2 kW, oscillating 5-way spraying system (2 x separating agent, 1 x lubricant, 2 x cleaning agent) Color touch screen control OTT C3 Motorized height adjustment Feed speed: 10 - 14 m/min Infinitely variable feed speed COMBI MELT gluing unit for EVA/PUR, hopper volume 1.5 l Isdpfxslc Ewie Ah Aotr CE marking Total connected load: 12.6 kW Dimensions (L x W x H) approx.: 6120 x 840 x 1500 mm Weight approx.: 2,900 kg

Stanje: generalkompletno obnovljen (rabljeno), Leto izdelave: 2007, Funkcionalnost: popolnoma funkcionalen, OTT Tornado Top Edge Banding Machine – Excellent Condition PU glue pot with separating agent system, also suitable for EVA adhesives. In September 2024, we had the entire machine recalibrated and the gluing unit renewed. The result is flawless with transparent adhesive and outstanding with white glue on white panels. The machine runs perfectly and without disruptions. Technical Data: • Edge thickness: 0.4 – 8 mm • Panel thickness: 8 – 40 mm • Minimum panel length: 150 mm • Minimum panel width: 70 mm • Feed speed: 14 m/min • Pre-milling unit: 2 HF motors, 2.3 kW, 12,000 rpm • End trimming unit: 2 HF motors, 0.3 kW, 12,000 rpm • Flush trimming unit: 2 HF motors, 0.7 kW, 12,000 rpm • Fine trimming unit: 2 HF motors, 0.3 kW, 12,000 rpm • Corner copying unit • Scraper unit Itodev Sm Hcepfx Ah Aer • Buffing unit • Triple spray system • Total power: 17.5 kW Dimensions: • Length: 6,180 mm • Width: 1,770 mm • Weight: 3,100 kg - Immediately available -

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2008, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: T/41242, višina obdelovanca (maks.): 52 mm, največja debelina roba: 12 mm, delovna višina: 880 mm, lastna masa: 3.000 kg, hitrost prepustnosti: 233 mm/s, TECHNICAL DETAILS Operation: One-sided, right-hand execution Edge thickness: 0.2 - 12 mm Workpiece dimensions Minimum width: 70 mm Minimum height: 8 mm Maximum height: 52 mm Minimum length: 150 mm Feed rate: 10 - 14 m/min Working height: 880 mm Iodpextfchefx Ah Aotr MACHINE DETAILS Processing units Jointing unit with 2 HF motors, 1.5 kW Double end trimming unit with 2 HF motors, 0.3 kW Flush milling unit with 2 HF motors, 0.7 kW Fine bevel milling unit (FASE) with 2 HF motors, 0.3 kW Fine radius milling unit with 2 HF motors, 0.3 kW Corner rounding unit with 2 motors, 0.35 kW Scraper unit for plastic edges Dimensions & Weight Machine dimensions (L x W x H): 6,120 x 840 x 1,385 mm Machine weight: 3,000 kg Operating voltage: 400 V, 50 Hz Total connected load: 12 kW Electrical connection: 3 x 400 V, 5 x 6 mm², fuse 35 A EQUIPMENT Double roller top pressure with electronic positioning Automatic roll magazine for rolls up to 800 mm diameter with pneumatic cutting device for thicknesses up to 3 mm Automatic edge magazine with optical monitoring for fixed-length edge strips Infeed fence with automatic positioning upon entering the jointing value CM - CombiMelt - modular bonding system Control system via 7-inch TFT touch color display 100 work programs freely storable alphanumerically PLC for high-resolution track control Individual frequency inverters for separate activation of the processing motors Hole detection for exclusion of CNC machining Network capability for integration into a data network

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2008, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: T/41242, višina obdelovanca (maks.): 52 mm, največja debelina roba: 12 mm, delovna višina: 880 mm, lastna masa: 3.000 kg, hitrost prepustnosti: 233 mm/s, No reserve price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Operation: Single-sided, right-hand execution Edge thickness: 0.2 – 12 mm Workpiece dimensions Minimum width: 70 mm Minimum height: 8 mm Maximum height: 52 mm Minimum length: 150 mm Feed speed: 10 – 14 m/min Working height: 880 mm MACHINE DETAILS Processing units Jointing section with 2 HF motors, 1.5 kW Double end trimming unit with 2 HF motors, 0.3 kW Flush trimming unit with 2 HF motors, 0.7 kW Fine chamfer trimming unit with 2 HF motors, 0.3 kW Fine radius trimming unit with 2 HF motors, 0.3 kW Corner rounding unit with 2 motors, 0.35 kW Scraper unit for plastic edges Dimensions & Weight Machine dimensions (L x W x H): 6,120 x 840 x 1,385 mm Machine weight: 3,000 kg Operating voltage: 400 V, 50 Hz Total connected load: 12 kW Electrical connection: 3 x 400 V, 5 x 6 mm², fuse 35 A EQUIPMENT Double roller top pressure with electronic positioning Itedpsxa Acrjfx Ah Aor Automatic roll magazine for rolls up to 800 mm diameter with pneumatic cutoff device for edging up to 3 mm thickness Automatic edge magazine with optical monitoring for fixed-length edge strips Infeed fence with automatic positioning based on jointing value input CM - CombiMelt - modular gluing system Control system via 7-inch TFT color touchscreen display Up to 100 work programs can be saved with any alphanumeric naming PLC for high-resolution feed control Individual frequency converters for separate activation of processing motors Hole detection for bypassing CNC operations Network capability for integration into a data network

Stanje: rabljeno, OTT Tornado - TOP Krmilnik preko 15-palčnega barvnega zaslona na dotik za popolno avtomatizacijo in najvišje udobje pri upravljanju CM-CombiMelt lepilni sistem, primeren za uporabo EVA in PUR talilnih lepil ter vseh običajnih čistilnih granul Enota za lepljenje za dodajanje iverk Avtomatski rolni magazin Avtomatski magazin za robove Dvojni kapalni agregat z avtomatskim obračanjem 0° / 3° Poravnalno rezkalno orodje - za poravnavo do 12 mm Fina rezkalna enota - RADIUS - radiusno rezkanje - profilni nož R2 - R5 Avtomatizirano kopirno rezkanje - zaobljeni vogali Kombinirano strgalo za robove - radius - posnetje Ploskovno strgalo Naprava za brizganje drsnega sredstva - PU Komplet za čiščenje z enoto za fino poliranje Zelo stabilna delovna površina z valjčnimi progami - SPREDAJ z izvlečnim škarjastim podstavkom Kompletno orodje vključeno Stroj je KOT NOV v IZJEMNO DOBRO OHRANJENEM STANJU Itsdpexy Iw Uefx Ah Asr Prva uporaba leta 2009, zelo malo delovnih ur, približno 1600 Stroj iz leasing vračila / možnost leasinga na zalogi v Liebochu

Stanje: rabljeno, Leto izdelave: 2008, Used machine Year of manufacture: 2008 Features and technical data: - Round pot glue applicator unit Itsdpfx Aoxdpm Soh Aer - Feed unit with automatic edge band magazine - Pressure zone with multiple pressure rollers - End trimming: 2 motorized saw units for front/end cap trimming - Top/bottom trimming units: 2 milling units with copying wheels for radius or bevel processing - Radius scraper: pneumatically controlled for reworking radii - Flat scraper: for smoothing the edge surfaces - Buffing unit: 2 polishing wheels with motors for final finishing - Riepe spray system - Control: PLC with operator panel - Feed frequency inverter replaced by Ott in 2022 - Feed speed approx. 10–12 m/min - Workpiece thickness up to 52 mm - Edge thickness 0.3 – 12 mm - Power supply 3x 400 V AC, 50 Hz - Rated power 12.7 kW - Rated current 30.5 A - Control voltage 24 V DC - Maximum fuse 35 A (5x 6 mm² connection cable) Machine dimensions: approx. 6120 x 840 x 1385 mm Machine weight: approx. 3,000 kg Availability: short-term / immediate Location: Bavaria

Stanje: zelo dobro (rabljeno), Leto izdelave: 2002, Edge thickness: 0.2 – 12 mm Workpiece dimensions: Minimum width: 70 mm Minimum/maximum height: 8 / 42 mm Minimum length: 160 mm (for strip edges) Minimum length: 60 mm (for coil material) Feed speed: 12 m/min Glue application roller Working height: 880 mm Compressed air: 6 bar, 1/4 inch Extraction port: 160 mm diameter Machine dimensions (L x W x H): 5600 x 950 x 1300 mm Weight: approx. 2200 kg Connected load: approx. 11.5 kW, 400 V, 50 Hz Equipment: - Double top pressure with electronic height adjustment - Automatic magazine for coiled edges up to 800 mm diameter Itodpfx Ahshy Tlrs Aer - Pneumatic guillotine shear for strip edges up to 3 mm - Automatic infeed fence Pre-milling unit with 2 high-frequency motors, 1.5 kW, 12,000 rpm Double end trim saw - 2 high-frequency motors, 0.2 kW, 12,000 rpm 2 automatic positions = 0 + 3 degrees Flush trimming unit with 2 high-frequency motors, 0.7 kW, 12,000 rpm Radius milling unit - with 2 high-frequency motors, 0.3 kW, 12,000 rpm Surface scraper Note on used machines: • Errors in technical details and prior sale excepted. • Stated prices are ex-works – free loading! • The machine has been cleaned and function tested. • All machines are sold as inspected, without any warranty. Buyers are free to inspect the equipment at the location. • Special agreements are only valid if made in writing. (We only respond to inquiries including your address and telephone number!)

Stanje: rabljeno, Leto izdelave: 1985, Rabljeni stroj Letnik izdelave 1991 Velikost plošče 2200 x 1100 mm z Busse aluminijastimi varčevalnimi ploščami (madeži, vidni na slikah, so zgolj optične narave; plošče so brezhibne) Itedpfx Asx Enp Roh Aer Skupni pritisk stiskanja 80 t Tlačni valji 4 x 90 mm Odpiralna širina 400 mm Teža pribl. 3100 kg Skupna dolžina 2610 mm Skupna širina 1240 mm Skupna višina 1890 mm Moč motorja 1,1 kW Priključna moč vsake električne grelne plošče cca 6,6 kW Razpoložljivost: takoj Lokacija: Röllbach

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 1996, Glavni pogon Pritiskalna sila: 686 kN Ta stiskalnica za furnir OTT ST 1611/60 je bila izdelana leta 1996. Največja pritiskalna sila je 70 ton, pritiskalne plošče merijo 1300x1611 mm, moč stroja pa je 10,1 kW. Plošče so električno ogrevane, kar povečuje učinkovitost. Izkoristite priložnost za nakup te stiskalnice za furnir OTT ST 1611/60. Za več informacij nas kontaktirajte. Tipi uporabe: Stiskanje / Laminiranje Iodjx D D Nnopfx Ah Aetr

Stanje: rabljeno, Leto izdelave: 1968, 1 kos furnirske stiskalnice OTT JU 60-S 380V, 12kW, skladno s slikami in ogledom Barva: zelena Leto izdelave: 1968 Stanje: rabljeno Način plačila: predplačilo po bančnem nakazilu Lokacija skladiščenja: delavnica Dostava: samo osebni prevzem – dostava za ta artikel ni možna! Itsdpfex Ifpmox Ah Ajr

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 1994, Ott 2513 Stabil stiskalnica za furnir 4 cilindri Površina za pritisk 2500 x 1300 mm Električno ogrevanje Itjdpfex Dzvxex Ah Aer Odpiranje-zapiranje električno Pritisk 90 ton Letnik 1994 Cena 7500.-

Stanje: rabljeno, Leto izdelave: 1978, Nombre de bandas: 2 bandas Ancho máximo de trabajo: 1100 mm Altura mínima de trabajo: 3 mm Altura máxima de trabajo: 160 mm 1ª banda: rodillo calibrador Diámetro del primer rodillo: 260 mm Ejecución del primer rodillo: rodillo de goma ranurado Longitud de la banda de lijado, 1º grupo: 1900 mm Ancho de la banda de lijado, 1º grupo: 1100 mm Velocidad de la banda de lijado, 1º grupo: 25 m/seg Potencia del motor del 1º grupo: 20 kW 2ª banda: grupo de almohadilla Zapato lijador del 2º grupo: neumático Longitud de la banda de lijado, 2º grupo: 1900 mm Ancho de la banda de lijado, 2º grupo: 1100 mm Velocidad de la banda de lijado, 2º grupo: 25 m/seg Potencia del motor del 2º grupo: 13,5 kW Cepillos de limpieza: Sí Velocidad de avance: 7 m/min., 14 m/min. (dos posiciones) Control: panel de control manual Oscilación eléctrica/neumática de la banda: Sí Elevación de la mesa: electro-motorizada Indicación de altura de la mesa: indicador numérico mecánico Presión de funcionamiento: 6 bar Número de máquina: 185 Peso aprox.: 2500 kg Ijdpfx Ahsxta H Io Aetr Dimensiones: 1800 x 2000 x 1900 mm Diámetro de la boca de aspiración: 2 x 200 mm Ubicación: Nattheim

Stanje: zelo dobro (rabljeno), Edge cutting device Working height: 800 mm Dimensions (L x W x H) approx.: 1,060 x 720 x 930 mm Itedjwiwnqspfx Ah Aer Compressed air connection: 6 bar Weight approx.: 120 kg Cutter included

Leto izdelave: 1994, Stanje: dober (rabljeno), Finishing unit, buffing unit, modular unit system, profiling unit, double-end tenoner, edge processing machine, cleaning unit - Manufacturer: Paul OTT, finishing unit from edge banding machine U 206 - Type: KEO-04 - Motor: 0.3 kW Itedpfx Ahou N Sgge Asr - Speed: 1450 rpm - Lateral adjustment: yes - Height adjustment: yes - Quantity: 2 units available - Price: per piece - Dimensions: 400/280/H660 mm / 480/290/H660 mm - Weight: 35 kg / 36 kg

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 1996, Glavni pogon Pritiskalna sila: 135 kN Itodsx D E Avjpfx Ah Aor Ta stiskalnica za furnir OTT 300-K-D0 je bila izdelana leta 1996. Gre za robustno stiskalnico za furnir z dimenzijami plošče 2550 x 1350 mm in ogrevanjem s toplo vodo. Vključuje 6 tlačnih valjev s skupno pritiskalno silo 135 ton. Izkoristite priložnost za nakup te stiskalnice za furnir OTT 300-K-D0. Za več informacij o stroju nas kontaktirajte. Vrste uporabe Stiskanje / Laminacija

Stanje: rabljeno, 1 kos kombiniranega širokotračnega brusilnega stroja OTT COMET-1 z brusnimi trakovi, maks. delovna širina 1100mm, maks. debelina obdelovanca 160mm, min. debelina obdelovanca 3mm, v skladu s slikami in ogledom, samostojna demontaža Barva: zelena Iedpfx Aex Ifd Dsh Astr Stanje: rabljeno Način plačila: predplačilo z bančnim nakazilom Lokacija blaga: mizarna/hala 2 Dostava: le osebni prevzem – Za to postavko dostava ni možna!

Stanje: rabljeno, Leto izdelave: 1990, Rabljeni stroj Leto izdelave: 1990 Oprema in tehnični podatki: Ijdowxh Duepfx Ah Aotr maks. delovna širina: 1100 mm min / maks. debelina obdelovanca: 3 / 160 mm dimenzija brusilnega traku: 2150 x 1120 mm hitrost brusilnega traku: 18 m/s hitrost pomika: 4 + 8 m/min moč motorja brusilne enote: 15 kW moč motorja pomikalnega traku: 1,1 / 1,8 kW delovni tlak: 6 bar poraba zraka: 20 l/min odsesovalni priključki: 2 x 150 + 1 x 120 mm dimenzije: 2690x1800x2100 mm teža: pribl. 3500 kg Pozor: Stroj ni pripravljen za uporabo (manjka pomikalni trak) Lokacija skladišča: Flörsheim Razpoložljivost: po dogovoru

Stanje: rabljeno, Leto izdelave: 1996, Tiskovna mera: 2550 x 1350 mm. Plošče: zlato eloksirane. Skupen tlak tiska: 80 t. Specifičen tiskovni tlak: 2,8 - 4,0 kg/cm². Hidravlični cilindri: 4 x 90 mm. Odpiralna višina in hod tiska: 400 mm. Varnostna vrvica. Varnostni okvir. Upravljanje s tipko. Skupna priključna moč: 19,3 kW. Skladišče: pri dobavitelju. Isdpfx Ajxy Tl Reh Ajtr

Stanje: zelo dobro (rabljeno), Leto izdelave: 1993, max. edgebanding thickness 0.2 - 15 mm Feed speed 12/18 m/min Heating-up time approx. 6 min Automatic magazine (strip magazine) Roll magazine Machine converted for ABS edges Quick heat-up granulate glue pot End trimming shear: 0.2 - 3.0 mm Flush milling unit Radius milling unit Operation via selector switch / pushbuttons Extendable roller support table Acoustic enclosure Machine length 3800 mm Used Machinery Information: Iedpfx Ahofbr S Re Aetr • Technical data subject to errors and prior sale. • Stated prices are ex-location, loaded free of charge. • The machine has been cleaned and function-tested. • All machines are purchased as seen, with no warranty or guarantee whatsoever. Buyers are welcome to inspect the machines at the site. • Special agreements are only valid in written form. (We only respond to enquiries that include your full address and telephone number!)

Stanje: rabljeno, Leto izdelave: 1990, No. 04502 Veneer Press Ott JU 2511/70 Used, year of manufacture: 1990 Electrohydraulic, approx. 15 kW Aluminium heating plates 2550 x 1100 mm (L x W) Electrical heating 4 hydraulic cylinders, each 80 mm diameter Total pressing force: 70 tons Specific pressing force: 2.5 – 3.5 kg/cm² Opening width: 400 mm Push-button control for open – close – stop Pressure monitoring with automatic adjustment Adjustable limit switch for specified opening width HAWE pump Safety pull cord Includes electrical cable and 32 A plug Includes electrical diagrams, operating manual as PDF file Transport dimensions approx. 2900 x 1400 x 2000 mm (L x W x H) Weight approx. 3000 kg To avoid possible misunderstandings, an on-site inspection by appointment is possible and recommended Ijdpfx Ahsxwp S Ij Aotr Sale in as-is condition Technical specifications, condition description, year of manufacture, and scope of delivery according to manufacturer’s brochure and/or previous owner, without guarantee Subject to prior sale No warranty is given for used machines, sale is strictly “as inspected” Payment terms: Prices plus statutory VAT, payment before collection or shipping Delivery terms: ex stock

Stanje: rabljeno, Leto izdelave: 2000,

Stanje: rabljeno, Leto izdelave: 1997, Number of belts: 2-belt Max. working width: 1100 mm Min. working height: 3 mm Max. working height: 160 mm 1st belt: calibration drum Diameter of 1st drum: 150 mm Design of 1st drum: grooved rubber drum, 90 Shore Abrasive belt length, 1st unit: 1900 mm Abrasive belt width, 1st unit: 1120 mm Abrasive belt speed, 1st unit: 18 m/sec Drive unit 1: 11 kW 2nd belt: sanding unit with pad Sanding pad, 2nd unit: electronic segmented pads, 45 mm segment width Abrasive belt length, 2nd unit: 1900 mm Itjdjxq Aptepfx Ah Aer Abrasive belt width, 2nd unit: 1120 mm Abrasive belt speed, 2nd unit: 18 m/sec Drive for both units: shared motor with 1st unit, rigid sanding pad for solid wood and frame sanding Lacquer sanding possible: No Feed speed, fixed: 5 / 10 m/min Control: manual control panel Electr./pneu. belt oscillation: Yes Table lift: motorized Table display: digital Operating pressure: 6 bar Machine number: E / 79191 Dimensions: 1930 x 1700 x 1980 mm Motor power: 12 kW Extraction connection: 2 x 150 mm Location: Nattheim

Stanje: zelo dobro (rabljeno), Pressing area: 2500 x 1300 mm Number of press cylinders: 4 Total pressing force: 90 t Operating voltage: 3 x 400 V + N, 50 Hz Total connected load approx. 20.3 kW Space requirements (L x W x H) approx.: 2900 x 1350 x 1900 mm Weight: approx. 3600 kg Hydraulic heated platen press Underpiston design ELKOM electric heating plates Pressing pressure can be continuously adjusted via pressure switch device Two-stage hydraulic pump with automatic switching valve from low to high pressure Central control panel with all controls Analog temperature display for both heating plates Safety pull cord Rack and pinion compensation Main switch CE certified Itodpfx Aerivrwsh Aer NEW ALUMINUM COVER PLATES Note on used machines: • Errors in technical specifications and prior sale excepted. • The stated prices are ex location – free loading. • The machines have been cleaned and function tested. • All machines are bought as inspected, with no warranty claims whatsoever. The buyer is free to inspect the machines at the location. • Special agreements are only possible in written form. (We respond to inquiries only when providing your address and telephone number!)

Stanje: rabljeno, Leto izdelave: 2001, Hrúbka hrany: 0,2 - 6 mm Rozmery obrobku: - Minimálna šírka: 70 mm - Minimálna/maximálna výška: 8 / 42 mm - Minimálna dĺžka pri pásových hranách: 150 mm Posuvná rýchlosť: 12 m/min Valec na nanášanie lepidla Rozmery stroja (d x š x v): 3500 x 900 - 1300 x 1250 mm Hmotnosť: cca 1130 kg Prípojný výkon: cca 6,0 kW, 400 V, 50 Hz Vybavenie: - Dvojité horné pritláčanie s manuálnym nastavením výšky Ijdpevvkfqefx Ah Aotr - Automatický zásobník na rolkové hrany do 800 mm priemeru - Rýchloohrevná lepiaca vaňa s nanášacím valcom v súhlasnom aj protibežnom smere - Pneumatické zapínanie a vypínanie všetkých pracovných jednotiek - Pneumatické kapovacie nožnice pre pásové hrany do 3 mm - Manuálne nastaviteľné vodiacie pravítko - Dvojitá kapovacia píla s 2 vysokofrekvenčnými motormi, 0,2 kW, 12 000 ot./min, 2 automatické pozície (0° + 3°) - Orezávacia/zrovnávacia frézovacia jednotka s 2 vysokofrekvenčnými motormi, 0,43 kW, 12 000 ot./min, obojstranné snímanie, s 2 vysokofrekvenčnými hlavami s otočnými nožmi - Rádiusová stieracia čepeľ, automatické podávanie - Plochá stieracia čepeľ, automatické podávanie Miesto skladovania: Nattheim

Stanje: zelo dobro (rabljeno), Leto izdelave: 1993, OTT model JU 2513 Hidravlična furnirska stiskalnica z elektro grelnimi ploščami Izvedba s podbatnicami BUSSE elektro grelne plošče Centralna nadzorna plošča z vsemi upravljalnimi elementi Analogni prikaz temperature za obe grelni plošči Iodpfx Ahsxgpaqo Ajtr Pritisk stiskanja brezstopenjsko nastavljiv s tlačnim stikalom Glavno stikalo dvostopenjska hidravlična črpalka z avtomatskim preklopnim ventilom iz nizkega v visok tlak Varnostna vlečna vrvica Izravnava z zobato letvijo Omejevanje hoda CE Stisna površina: 2500 x 1300 mm Število stiskalnih valjev: 4 Skupna stiskalna sila: 70 t Obratovalna napetost: 3 x 400 V + N, 50 Hz. Skupna priključna moč: pribl. 20,3 kW Potreben prostor (D x Š x V) pribl.: 2900 x 1250 x 1900 mm Teža: pribl. 3200 kg