Valjčni Skupščine nakup rabljenega (1.216)

Stanje: rabljeno, Leto izdelave: 1989, število ravnalnih valjev: 21, premer ravnalnega valja: 80 mm, najv. debelina jeklene pločevine: 10 mm, največja širina izdelka: 1.250 mm, Širina pločevine: 1250 mm Debelina pločevine: 10 mm Število valjev: 21 kosov Premer valja: 80 mm Hitrost traku: 12 m/min Poravnavani prečni prerez: 5700 mm² Skupna potrebna moč: 60 kW Oprema: Smer dela: z leve proti desni Vhod traku: na levi Ndsdpfx Ajyykyhsl Dob Regulacija hitrosti traku: trifazni motor Merilna naprava: digitalni prikazovalnik Nastavitev stojala valjev: motorizirana Pozicijski nadzor: TWIN-Control Hitromenjalna naprava: hidravlična

Leto izdelave: 2009, stanje: rabljeno, Powered roller conveyor with PVC-coated transport rollers for conveying workpieces. Power transmission via flat belt over transmission shaft. Exceptionally smooth operation even at high feed rates, with frequency-controlled feed. Technical specifications: - Year of manufacture: 2009 - Conveyor length: 2,500 mm Ndjdpfszf N E Dex Al Deb - Usable working width: 1,300 mm - Roller length: 1,450 mm - Working height: 900 ±20 mm - Roller diameter: 64 mm - Roller pitch: 125 mm - Feed rate adjustable (manual): 3–15 m/min - Installed power: 0.37 kW

Stanje: rabljeno, Leto izdelave: 2025, Funkcionalnost: popolnoma funkcionalen, premer valja: 50 mm, širina valja: 600 mm, kotalkanje nagibanje: 60 mm, skupna širina: 685 mm, skupna višina: 160 mm, skupna dolžina: 1.250 mm, transportna dolžina: 1.250 mm, skupna masa: 70 kg, Proizvajalec: TAF Leto izdelave: 2025 Skupne mere (DxŠxV) v mm: 1.250 x 685 x 160 Širina z robom v mm: 685 Višina roba v mm: 140 Dolžina transporterja v mm: 1.250 Nsdpfjzd Eazex Al Dodb Širina transporterja v mm: 600 Višina transportiranja v mm: min 160 do 1.100 Delitev valjev v mm: 60 Tip osi nosilnega valja: jeklo Premer nosilnega valja v mm: 50 Nosilni valji na os: 1 Material nosilnega valja: jeklo Pogonski prenos: Poly-v jermen Tip motorja: 24V motorna valjčna enota Podatki o motorju: Kyowa Pulseroller Hitrost transporta v m/s: 0,6 Neto teža v kg: 70 Posebnosti: poševna valjčna proga 80° Stanje: rabljeno / popolnoma delujoče Funkcijski preizkus: OK

Stanje: dober (rabljeno), Leto izdelave: 2006, vrsta upravljanja: CNC krmiljenje, vrsta aktuacije: hidravlični, proizvajalec krmilnikov: PC 300 TOUCH, število valjev: 3, premer gredi: 105 mm, skupna masa: 2.200 kg, skupna dolžina: 1.850 mm, skupna širina: 1.600 mm, skupna višina: 1.400 mm, Profilna upogibna stroj PBT - PBT 35 MACH-ID 9661 Proizvajalec: PBT Tip: PBT 35 Krmiljenje: PC 300 TOUCH Leto izdelave: 2006 Sprednji valji brezstopenjsko nastavljivi: 360 – 1100 mm Moč: 11 kW na pogon Pritisna sila na X-osi: 35.000 kg Nodszguqnspfx Al Djdb Hidravlični variomatski pogon Zmogljivosti obdelave: UNP profil: 200 × 1200 mm T-profil: 100 × 100 × 10 × 1200 mm Kvadratno železo: 80 × 80 × 1400 mm Cev: Ø 180 × 2000 mm Horizontalno in vertikalno: vertikalno Premer osi: 105 mm Število valjev: 3 Hod X-os: 390 mm Upogibni moment: 3000 NmCM³ Delovna hitrost: 1 - 16 U/min mm/min. Dolžina: 1850 mm Širina: 1600 mm Višina: 1400 mm Teža: 2200 kg Prosimo, upoštevajte: Informacije na tej strani so bile zbrane po naših najboljših močeh, kjer je bilo mogoče, od proizvajalca. Informacije so podane v dobri veri, vendar pa za njihovo točnost ne moremo jamčiti. Zato ne predstavljajo pogodbenih pogojev ali zagotovil. Priporočamo, da preverite vse pomembne podatke.

Stanje: rabljeno, Leto izdelave: 1995, Transnorm Rollenbahn 3620-600-555 RA2492 Fabrikat: Transnorm Rollenbreite (RB): 550 mm Nennbreite/Außenbreite (NB): 600 mm Länge: 3620 mm Rollendurchmesser: 50 mm Abstand der Rollen: 76 mm Antriebsmotor: SEW Getriebemotor Eletrische Daten: 380 V, 0,37 kW Höhe Rahmen: 140 mm einschließlich Motor: 300 mm Fördergeschwindigkeit: bitte kontaktieren Sie uns Optional erhältlich: Unterstützt Seitenführungen Ndjdpfx Aey Nf Npol Deb Frequenzumrichter für Stufenlose Geschwindigkeitsregelung Preise netto zzgl. MwSt. ab Zentrallager Dr. Sonntag GmbH & Co KG, 97076 Würzburg, Deutschland Für eine individuelle, fachmännische Beratung setzten Sie sich einfach mit uns in Verbindung. Kontaktieren Sie uns einfach telefonisch oder per Mail. Wir helfen Ihnen gerne bei der Planung und Umsetzung Ihrer Projekte. Wir freuen uns darauf von Ihnen zu hören. Mit freundlichen Grüßen Ihr Team der Dr. Sonntag GmbH & Co. KG Ihr Spezialist und Ansprechpartner für Intralogistik

Stanje: rabljeno, Rollenbahn 1500/2500/3000-740-700 RA2294 Hersteller: Blume Rollenbreite (RB): 700 mm Nenn-/Außenbreite (NB): 740 mm Längen: 1500/2500/3000 mm Rollendurchmesser: 50 mm Rollenabstand: 100 mm Rollenbahnmotor: kein Motor Rahmenbauhöhe: 60 mm Lieferumfang: ohne Stützen Optional erhältlich: - Stützen - Seitenführung einseitig und beidseitig Preis: zzgl. MwSt. ab Zentrallager Dr. Sonntag GmbH & Co. KG, 97076 Würzburg Nedeyhikyopfx Al Dodb Für eine individuelle, fachmännische Beratung setzen Sie sich einfach mit uns in Verbindung. Kontaktieren Sie uns telefonisch oder per E-Mail. Wir helfen Ihnen gerne bei der Planung und Umsetzung Ihrer Projekte. Wir freuen uns darauf, von Ihnen zu hören. Mit freundlichen Grüßen Ihr Team der Dr. Sonntag GmbH & Co. KG Ihr Spezialist und Ansprechpartner für Intralogistik

Stanje: zelo dobro (rabljeno), Ležaji z valjčki, kroglični ležaji, ležaji SKF, SKF, nihajni ležaji, valjčni ležaji, iglični ležaji, aksialni valjčni ležaji, valjčna podložka, aksialni iglični venec, valjčni venec -Proizvajalec: INA, aksialni valjčni ležaj, aksialni iglični venec, 5 kosov neuporabljeno v originalni embalaži -Tip: AXK 150190 A -Zunanji premer: 190 mm -Notranji premer: 150 mm -Mera: Ø 190 x 5 mm -Cena na pakiranje (5 kosov): 200 evrov -Zaloga: 4 pakiranja in 2 posamezna kosa Ndodpfx Alsv Sprnj Djb -Teža: 0,2 kg/kos

Stanje: novo, FAS Conveyor System Roller Conveyors Roller Conveyor 2000/3000-510-450 RA2402 Further Information Manufacturer: FAS Type: Roller Conveyor Year of manufacture: unknown Condition: Good (used) Available conveyor lengths (FL): 3,000 mm, 5,000 mm, 6,000 mm, 7,000 mm, 8,000 mm, 9,000 mm, 10,000 mm, 11,000 mm, 12,000 mm, 13,000 mm, 14,000 mm, 15,000 mm, 16,000 mm, 17,000 mm, 18,000 mm, 19,000 mm, 20,000 mm, 21,000 mm Roller width (RB): 450 mm Overall/External width (NB): 510 mm Roller pitch: 62.5–125 mm (variable) Drive type: Center drive Conveyable load weight: up to 30 kg Optionally available, e.g.: Ndedpswf I Tcjfx Al Deb - Frequency inverter for stepless speed control - Supports - Side guides Price: Net, plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg For tailored, professional advice, simply get in touch with us. Contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Best regards, Your Dr. Sonntag GmbH & Co. KG Team Your specialist and contact for intralogistics

Stanje: novo, FAS Conveyor System Roller Conveyors 2000/3000-510-450 RA2402 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: Unknown Condition: Good (used) Available Conveyor Lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller Width (RW): 450 mm Nominal/Overall Width (NW): 510 mm Roller Pitch: 62.5-125 mm adjustable Drive Type: Center Drive Nodpfx Ajwf I Tpel Dedb Conveyed Goods Weight: up to 30 kg Available options include, for example: - Frequency inverter for stepless speed control - Supports - Side guides Price: Net plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg For personalized, professional advice feel free to contact us. You can reach us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Best regards, Your Dr. Sonntag GmbH & Co. KG Team Your specialist and contact partner for intralogistics

Stanje: novo, FAS Conveyor System Roller Conveyors Roller Conveyor 2000/3000-510-450 RA2402 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: Unknown Condition: Good (used) Available Conveyor Lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller Width (RW): 450 mm Nominal/External Width (NW): 510 mm Roller Pitch: 62.5–125 mm (variable) Drive Types: Centre Drive Conveyed Load Weight: up to 30 kg Optionally available e.g.: Frequency inverter for stepless speed control Supports Side guides Price: Net, plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For tailored, professional advice simply contact us. Get in touch with us by phone or email. We are happy to assist you with the planning and realisation of your projects. We look forward to hearing from you. Best regards, Ndjdpewf I Utsfx Al Dob Your Dr. Sonntag GmbH & Co. KG Team Your specialist and contact for intralogistics

Stanje: novo, FAS Conveyor System Roller Conveyors Roller Conveyor 2000/3000-510-450 RA2402 Nedjwf I Uyjpfx Al Dedb Further Information Manufacturer: FAS Type: Roller conveyor Year of manufacture: unknown Condition: good (used) Available conveyor lengths (FL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller width (RW): 450 mm Nominal/external width (NW): 510 mm Roller pitch: 62.5-125 mm, adjustable Drive types: centre drive Conveyable load weight: up to 30 kg Optional extras available, e.g.: Frequency inverter for stepless speed adjustment Support stands Side guides Price: Net, plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg For individual, professional advice, simply get in touch with us. Contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Best regards, Your team at Dr. Sonntag GmbH & Co. KG Your specialist and point of contact for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors / Roller Conveyors 2000/3000-510-450 RA2402 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: unknown Condition: good (used) Available conveyor lengths (CL): 3,000 mm, 5,000 mm, 6,000 mm, 7,000 mm, 8,000 mm, 9,000 mm, 10,000 mm, 11,000 mm, 12,000 mm, 13,000 mm, 14,000 mm, 15,000 mm, 16,000 mm, 17,000 mm, 18,000 mm, 19,000 mm, 20,000 mm, 21,000 mm Roller width (RW): 450 mm Nominal / External width (NW): 510 mm Roll pitch: 62.5–125 mm, variable Drive type: Centre drive Conveyed goods weight: up to 30 kg Optional extras available, e.g.: - Frequency inverter for stepless speed control - Supports - Side guides Price: Net plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg Nedpfx Aowf Ncfol Djdb For personalised, professional advice, simply get in touch with us. Contact us by phone or email. We are happy to assist you with planning and implementing your projects. We look forward to hearing from you. Best regards, Your team at Dr. Sonntag GmbH & Co. KG Your specialist and contact for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors Roller Conveyor 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller conveyor Year of manufacture: unknown Condition: good (used) Available conveyor lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller width (RW): 650 mm Nominal/External width (NW): 710 mm Roller pitch: 62.5–125 mm (variable) Drive type: Center drive Load capacity: up to 30 kg Optionally available, for example: - Frequency inverter for infinitely variable speed control - Supports - Side guides Price: Net plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg Njdpfewf Nftex Al Dedb For individual, expert advice, simply get in touch with us. Contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Best regards, Your team at Dr. Sonntag GmbH & Co. KG Your specialist and point of contact for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Construction: unknown Condition: good (used) Available Conveyor Lengths (FL): 3,000 mm, 5,000 mm, 6,000 mm, 7,000 mm, 8,000 mm, 9,000 mm, 10,000 mm, 11,000 mm, 12,000 mm, 13,000 mm, 14,000 mm, 15,000 mm, 16,000 mm, 17,000 mm, 18,000 mm, 19,000 mm, 20,000 mm, 21,000 mm Roller Width (RB): 650 mm Nominal/Outer Width (NB): 710 mm Roller Pitch: 62.5–125 mm, adjustable Drive Type: Center Drive Nsdpfewf Ngwex Al Dsdb Conveyed Goods Weight: up to 30 kg Optional accessories available, e.g.: - Frequency inverter for stepless speed regulation - Supports - Side guides Price: Net plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, professional advice, simply contact us. You can reach us by phone or email. We are happy to assist you with the planning and realization of your projects. We look forward to hearing from you. Best regards, Your team at Dr. Sonntag GmbH & Co. KG Your specialist and partner for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller Conveyor Year of manufacture: unknown Condition: good (used) Ndodpfowf Ng Dox Al Dob Available conveyor lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller width (RW): 650 mm Nominal/external width (NW): 710 mm Roll pitch: 62.5–125 mm (adjustable) Drive types: Center Drive Conveyable load weight: up to 30 kg Optional features available, e.g.: • Frequency inverter for stepless speed control • Supports • Side guides Price: Net plus VAT ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, professional consultation, simply get in touch with us. You can contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Best regards, Your Dr. Sonntag GmbH & Co. KG Team Your specialist and contact partner for intralogistics.

Stanje: rabljeno, FAS Conveyor System Roller Conveyors, Roller Conveyor 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: Unknown Condition: Good (used) Available Conveyor Lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller Width (RW): 650 mm Nominal/Outer Width (NW): 710 mm Nedswf Ng Rjpfx Al Djdb Roller Pitch: 62.5–125 mm (adjustable) Drive Types: Center Drive Conveyable Item Weight: up to 30 kg Available Options, e.g.: • Frequency inverter for stepless speed control • Support stands • Side guides Price: Net plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg For individualized, professional advice, please do not hesitate to contact us. Simply give us a call or send us an email. We are happy to support you in the planning and realization of your projects. We look forward to hearing from you. Best regards, Your Dr. Sonntag GmbH & Co. KG Team Your specialist and contact for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors Roller Conveyor 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: unknown Condition: good (used) Available conveyor lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller width (RW): 650 mm Nominal/External width (NW): 710 mm Roller pitch: 62.5-125 mm, adjustable Drive system: centre drive Maximum load capacity: up to 30 kg Optionally available, e.g.: Frequency inverter for stepless speed adjustment Supports Side guides Price: Net plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG, 97076 Würzburg For individual, professional advice, simply get in touch with us. Contact us by phone or email. We are happy to assist you in planning and implementing your projects. We look forward to hearing from you. With kind regards, Your team at Dr. Sonntag GmbH & Co. KG Nodpfxjwf Nhhs Al Dodb Your specialist and contact for intralogistics

Stanje: rabljeno, FAS Conveyor System Roller Conveyors 3000-710-650 RA2403 Further Information Manufacturer: FAS Type: Roller Conveyor Year of Manufacture: unknown Condition: good (used) Available Conveyor Lengths (CL): 3000 mm, 5000 mm, 6000 mm, 7000 mm, 8000 mm, 9000 mm, 10000 mm, 11000 mm, 12000 mm, 13000 mm, 14000 mm, 15000 mm, 16000 mm, 17000 mm, 18000 mm, 19000 mm, 20000 mm, 21000 mm Roller Width (RW): 650 mm Nominal/Outer Width (NW): 710 mm Roller Pitch: 62.5–125 mm (variable) Drive Types: Center Drive Conveyable Load Weight: up to 30 kg Available options include: – Frequency inverter for stepless speed control – Supports – Side guides Price: Net plus VAT, ex central warehouse Dr. Sonntag GmbH & Co. KG 97076 Würzburg For individual, expert advice, please feel free to contact us. Contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you! Best regards, Your team at Dr. Sonntag GmbH & Co. KG Your specialist and partner for intralogistics. Ndsdpfx Ajwf Nhuol Dsb

Stanje: rabljeno, Roller conveyor, conveyor lane, roller conveyor belt, roller track Ndedpsu Uww Eefx Al Dob - Roller conveyor: non-driven - Roller width: 1150 mm - Rollers: Ø 82 mm - Roller pitch: variably adjustable - Dimensions: 2300/1350/H200 mm - Weight: 231 kg

Stanje: dober (rabljeno), roller conveyor, conveyor track, roller conveyor belt, roller track - Roller conveyor: with transport belt, driven - Speed: 11 m/min Ndsdpjvcltpsfx Al Dob - Conveyor belt: 1375 x 400 mm - Drive: Nord 0.55 kW - Overall dimensions: 1640/1060/H260 mm - Weight: 168 kg

Stanje: rabljeno, Leto izdelave: 1989, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: Syst.no. 105, Used roller conveyor by manufacturer Mannesmann Demag. 3 m straight sections, originating from a two-level transport system. 1 piece, 3 m in length. Negotiable price for larger purchase quantities! Other components available upon request – please contact us for details. Ndedjwliuzjpfx Al Dsb

Stanje: rabljeno, Leto izdelave: 2022, Knapp Roller Conveyor Accumulation Conveyor 12720-510-450 RA2379 Manufacturer: Knapp Running direction: bidirectional Roller width (RW): 450 mm Nominal/Outer width (NW): 510 mm Length: 12,720 mm in 7 segments Roller diameter: 50 mm Accumulation zone size: 540 mm Roller pitch: 60 mm Conveyor drive: 30 mm belt Frame height: 90 mm Conveying speed: 0.5 m/s Scope of delivery: without supports, includes light barrier Optionally available: - Supports - Side guides Prices are net, plus VAT, ex central warehouse Dr. Sonntag GmbH & Co KG, 97076 Würzburg For individual and professional consultation, simply get in touch with us. Contact us by phone or email. We are happy to assist you with the planning and implementation of your projects. We look forward to hearing from you. Nedpfx Aov I Hqmsl Dsdb Kind regards, Your Team at Dr. Sonntag GmbH & Co. KG Your specialist and partner for intralogistics

Stanje: dober (rabljeno), Saw roller support, sawing roller stand, saw horse, roller conveyor stand, roller stand - Roller stand: support stand with rollers for hacksaws, bandsaws, cold circular saws, etc. - Roller height: 445 to 565 mm - Roller: Ø 55 x 270 mm Ndjdpfxewvfmbe Al Deb - Dimensions: 370/315/H445 mm - Weight: 22 kg

Stanje: dober (rabljeno), Roller conveyor, roller track, powered roller conveyor, roller path - Roller conveyor: powered, with sensor switch / without control system Ndjdpfx Alev Haq Ro Dsb - Drive motor: 0.37 kW - Speed: 18 m/min - Roller width: 700 mm - Roller diameter: 64 mm - Axle spacing: 200 mm / adjustable - Conveyor length: max. approx. 2730 mm - Overall dimensions: 2800/775/H515 mm - Weight: 201 kg

Stanje: dober (rabljeno), Container turning device, welding positioner, roller stand - Roller stand: Rollers Ø 125 x 35 mm Ndjdev A Sztjpfx Al Djb - Roller spacing: 140 mm - Quantity: 1 piece available - Dimensions: 350/80/H170 mm - Weight: 6.6 kg