Used Cnc Cycle-Controlled Lathe for sale (53,930)

Condition: good (used), Year of construction: 1991, Machine type Lathe - cycle-controlled Manufacturer WEILER Type E30 year of construction 1991 Control Weiler Country of origin Germany Additional information Cycle-controlled lathe WEILER - E30 Technical details Turning diameter max. 330 mm Turning length 750 mm Weiler control Center height 165 mm Swing diameter over bed 330 mm Max. turning diameter over facing slide 160 mm Face slide travel 180 mm Longitudinal bed slide travel 395 mm Main spindle: Speed range - main spindle 1 - 4,500 min/-1 Drive power - main spindle 9 / 11 kW Max. Torque 165 Nm Spindle head DIN 55027 / 5 Spindle diameter in front bearing 70 mm Spindle bore 40 mm Usable bar diameter ( - ) mm Tool holder: Type MultiFix Turning tool shank cross-section 20 x 20 mm Tailstock: Quill stroke 110 mm Quill diameter 50 mm Tailstock holder MK 3 Gkedpfer Dvqzox Aivec Feed rates: Rapid traverse max. 10 m/min Feed force 6 / 3 kN Feed range 0 - 20 mm/-1 Thread cutting: metric 0.1 - 400 mm Inch 1/4 - 56 G/1" Module 0.125 - 28 mm.II DP 1 - 224 G/".II Number of threads max. 50 Total power requirement 10 kVA Machine weight approx. 1.5 t Space requirement approx. 2.8 x 2.0 x 2.0 m

Condition: used, Year of construction: 2003, turning diameter 1010 mm turning length 6000 mm control Siemens type Sinumerik 840D turning diameter over slide rest 650 mm 3-jaw chuck Schunk Rota Plus 3-jaw-chuck diameter 500 mm bed width 750 mm steady 450 mm Rotating speeds 1100 U/min Gsdpfxjyqv Tyo Aivekc length of gap 500 mm steady 450 mm spindle passage 104 mm workpiece weight 7000 kg main drive 52 kW turning speeds 5-900 U/min total power requirement . kW weight of the machine ca. . t dimensions of the machine ca. . m Serial number: 262/01 Machine number: Quick-change tool post Coolant system Monitor Chip conveyor The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 2000, machine/vehicle number: 990101, total length: 6,400 mm, total width: 2,200 mm, total height: 2,300 mm, overall weight: 18,500 kg, Heavy Duty Lathe Seiger SLZ 1200 x 3000 with Siemens Sinumerik 810D Cycle Control (Teach-In) The heavy duty lathe Seiger SLZ 1200 x 3000 is equipped with a Siemens Sinumerik 810D cycle control (Teach-In). The machine was most recently used as a faceplate and frontal lathe and therefore operated without a tailstock and without steady rests. However, the machine can still be structurally equipped with appropriate steady rests or a tailstock and used for classic center work. Configuration with AC main drive, large faceplate, hydraulic unit, separate control cabinet, and 2 chip conveyors. Working Area Distance between centers: 3,000 mm Swing diameter over bed: 1,200 mm Swing diameter over cross slide: 850 mm Cross slide travel: 620 mm Bed width: 750 mm Spindle Spindle nose: DIN 55027 size 11 Spindle diameter front bearing: 190 mm Spindle bore: 104 mm Speed range: 5 – 900 min⁻¹ Max. torque: 6,000 Nm Main Drive Drive power: 37 / 52 kW (100% / 60% duty cycle) Feed X-axis feed force: 24,000 N Z-axis feed force: 16,000 N Gedpozdd E Rofx Aivokc Rapid traverse X: 7 m/min Rapid traverse Z: 4 m/min Tool Holder Turning tool cross-section: 40 × 40 mm Electrical Data Supply voltage: 400 V Frequency: 50 Hz Max. current consumption: 200 A Workpiece Weights (Manufacturer specifications for standard configuration) Between centers without steady rest: 5,000 kg Between centers with 1 steady rest: 6,000 kg Between centers with 2 steady rests: 7,000 kg Flying in faceplate: 1,800 kg Chip Conveyor 2 x AME Chip Conveyors Manufacturer: AME GmbH, Emsdetten Type: S8 300 Tlg. 63 Year of manufacture: 05/2016 Not Included: Tailstock Steady rests Note The machine was most recently used as a faceplate or frontal lathe. Therefore, neither a tailstock nor steady rests are currently available. The machine is particularly suitable for machining large disc, ring, and flange workpieces. A later retrofit for use between centers is fundamentally possible. Serial number: 990101 Tip width: 3000 - mm Turning diameter max.: 850 mm Control: • Siemens Sinumerik 810D Weight approx.: 18,500 kg Dimensions (LxWxH) approx.: 6400 x 2200 x 2300 mm Year of construction: 2,000 Condition: in working order Terms of payment: 100% prepayment before pick-up Terms of delivery: From foundation under power: No

Condition: used, turning diameter 720 mm turning length 4000 mm control Siemens 805 turn - diameter over facing slide 360 mm spindle diameter 100 mm spindle passage 100 mm 3-jaw-chuck diameter 400 mm 4-jaw-chuck diameter 250 mm steady 360 mm Gjdpfx Ajyqupgeivskc total power requirement 22 kW Included: 4-jaw turrets and coolant. The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 2001, - Fagor 8055 CNC control - Operating modes: manual/cycle-controlled - 8-fold tool turret VDI30 - Overhauled 2023 - Year of construction 2001 Technical data Capacity: Gkjdpfx Aiovf I Dijvec - Center height: 200 mm - Center width: 1000 mm - Permissible Ø over guide bed: 400 mm - Permissible Ø over longitudinal slide: 370 mm - Permissible Ø over cross slide: 210 mm - Bed width: 300 mm Headstock: - Bore of main spindle: 65 mm - Main spindle nose: Camlock-n°6 / DIN 55027-n°6 - Morse taper of the main spindle: MK5 - Spindle speeds: 2 - Constant cutting speed: 0-750 / 750-3000 rpm Feed rates: - Working feed Z/X: 0 - 7000 mm/min - Rapid traverse Z/X: 10 m/min Tailstock: - Tailstock shank Ø: 58 mm - Tailstock shank travel: 155 mm - Morse taper tailstock: 4 Motors: - Main motor power: 7.5 kW - DC motor Z-axis power: 6.8 Nm - DC motor X-axis power: 3.4 Nm - Motor pump power: 0.57 kW Dimensions: - Machine weight: approx. 2300 kg - Dimensions WxHxD: 2980 x 1730 x 1610 mm

Condition: used, Year of construction: 1995, turning diameter 720 mm turning length 3000 mm control Siemens 805 turning diameter over slide 430 mm turning speeds 1800 U/min tailstock quill taper MT 6 steady 3 Stück main drive motor 36 kW z-axis 3050 mm x-axis 410 mm swing diameter over slide rest 430 mm spindle motor 28 kW workpiece weight 3000 kg spindle passage 106 mm 3-jaw-chuck diameter 305 mm total power requirement . kW weight of the machine ca. 6 t dimensions of the machine ca. 4x2,4x2 m Gkedpoyqvbdsfx Aivec Steady rest 1: Diameter: 120-300 mm Steady rest 2: Diameter: 220-400 mm Steady rest 3: Diameter: 350-500 mm Chuck: Diameter: 315 mm Maximum workpiece weight: 3 t (with steady rest) The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: good (used), Year of construction: 2000, functionality: fully functional, turning diameter 570 mm Gedpfx Aozxpxqoivekc turning length 2000 mm control Heidenhain TURN PLUS centre height 265 mm rapid travel - longitudinal/face 10/7 m/min spindle turning speed range 1-2500 U/min weight of the machine ca. 3,6 t dimensions of the machine ca. 5,5 x 2 x 2 m Additional information Equipment: Heidenhain TURN PLUS CNC control 3-jaw manual chuck Multifix tool holder 3 steady rests

Condition: used, CNC turning machine MONFORTS, type RNC 300 MultiTurn with driven tools and Y-axis Year of manufacture 2005 Gsdjzfau Aepfx Aivskc CNC control system FANUC Series 18i-TB Maximum turning diameter over the bed cover 380 mm Spindle bore 67 mm Spindle speed 25 - 5000 rpm Tool turret 12 stations Tool holder, cylindrical VDI 30 mm Motor power, spindle drive 23 kW Total power consumption 41 kVA Mains connection 400 volts, 50 Hz, 63 amps - with tailstock, chuck and collet chuck system - 3-jaw chuck SCHUNK ROTA NCD Ø 165 mm with a large number of chuck jaws - Collet chuck system HAINBUCH 65, without collets (only one collet as a sample) - 25 tool holders VDI 30 - 4 driven tools with collet ER 25 - Chip conveyor with integrated coolant system - approx. 20,000 operating hours Machine footprint with chip conveyor L x W x H approx. 4100 x 2600 x 2100 mm Footprint of the base machine L x W x H 3000 x 2400 x 2100 mm Weight approx. 6 tons very good condition

Condition: new, Maximum distance between centers: 700 mm Swinging diameter over bed: 390 mm Swinging diameter over carriage: 200 mm Gkjdpfx Aiezrluhsvjc Spindle mount: DIN 55026 Spindle bore diameter: 54 mm Maximum spindle speed: 4,000 rpm Drive power: 11/22 kW Machine weight: 2,000 kg

Condition: excellent (used), Year of construction: 2004, Technical data: Maximum turning height: 300 mm Maximum turning diameter over bed: 600 mm Maximum diameter over slide: 500 mm Distance between centers: 1500 mm CNC control: FANUC 21i-TB Revolutions: 16 – 4,000 RPM Gksdpfx Ajy Ub Ufjivoc Spindle motor power: 18.5 / 30 kW 3-jaw chuck: 315 mm Tool changer: 12 stations CE marking Dimensions (length x width x height): approx. 6000 x 2300 x 2100 mm Weight: approx. 7.5 tons Accessories: 12-position tool turret Numerous tools Numerous driven tools Hydraulic chuck with additional jaws Tailstock W+W filter system Chip conveyor The seller is not liable for typographical or data transmission errors. The machine’s appearance, technical condition, and wear are consistent with its age; used machines are sold without any warranty.

Year of construction: 1986, condition: ready for operation (used), Turning diameter over bed/face slide: 360mm/160mm, center distance: 800mm, travel X/Z: 205mm/810mm, speed: 3150rpm, spindle bore: 60mm, tool positions: 8, rapid traverse X/Z: 10m/min. Machine dimensions X/Y/Z: approx. 3300mm/1800mm/1800mm, weight: approx. 3300kg, control: Traub System TX-8. An on-site inspection is possible. Gjdpfx Aewmqx Dsivskc

Condition: used, Year of construction: 2001, turning diameter 320 mm turning length . mm Gjdpfx Ajyqtdioivjkc control Siemens type . CCUO turning diameter over slide rest . mm cross movement . mm spindle passage . mm turning speeds . U/min transmission ratio . quill stroke . mm rapid traverse . m/min main drive motor . kW 3-jaw-chuck diameter . mm total power requirement . kW weight of the machine ca. . t dimensions of the machine ca. . m The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Year of construction: 1998, turning diameter 650 mm turning length 2000 mm control MTC K turning diameter over slide rest 360 mm turning speeds 1800 U/min Gkedpfxjyutrho Aivoc 3-jaw chuck 315 mm The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: excellent (used), For sale is a Weiler C30 x 750 DJ02 lathe from 2008 in very good, well-maintained condition. The machine comes from a training environment and has been used accordingly with care. It is in very good technical and optical condition and has its original paint. Technical data / Equipment: * Manufacturer: WEILER * Model: C30 x 750 DJ02 * Year of construction: 2008 * Type: Conventional lathe * Application: Training / Workshop * Very good, well-maintained condition * Original paint Accessories / Scope of delivery: * New collet quick-change system * 3-jaw chuck * Multifix B quick-change tool holder * Technical documentation Due to its very good condition, the machine is ideal for training companies, workshops, locksmiths, mechanical production, and general workshop use. Inspection possible by arrangement. WORK AREA Center height 165 mm Swinging diameter over bed 330 mm Swinging diameter over cross slide 160 mm Distance between centers 750 mm Gjdpfx Aoz Aitpoivskc SPINDLE Spindle head DIN 55027/DIN ISO 702-3 Size 5 Spindle bore 43 mm Spindle diameter in the front bearing 70 mm MAIN DRIVE Drive power 60 %/100 % ED 9/7 kW Speed range 1 – 4,500 min-1 Number of speeds stepless FEED RANGE Number stepless Longitudinal 0.001 – 10 mm/rev Cross 0.001 – 10 mm/rev Feed force longitudinal 6,000 N Feed force cross 3,000 N Max. rapid traverse speed longitudinal/cross 6/3 m/min THREADING RANGE Metric threads 0.1 – 400 mm Inch threads 56 – 1/4 Gg./inch TAILSTOCK Arbor diameter 50 mm Arbor stroke 110 mm Internal taper DIN 228 MK 3

Condition: good (used), Year of construction: 2006, Parts shown by hand not come. Toolholders will come without cutting tools. Technical data are shown on pictures. Gjdpoz Eiv Tofx Aivskc

Year of construction: 1997, condition: ready for operation (used), Center height: 195mm, center width: 1250mm, turning diameter over bed/faceplate/in bed gap area: 400mm/245mm/585mm, spindle bore: 54mm, speed: 2500rpm, power: 7.5kW, rapid traverse face pull/longitudinal pull: 1.5m/3m/min, quill: MK5. Machine dimensions X/Y/Z: approx. 2600mm/1500mm/1600mm, weight: approx. 1800kg, control: GE Fanuc. Documentation available. On-site inspection is possible. Gkjdpfx Ajua E Txjivjc

Year of construction: 1996, condition: ready for operation (used), A cycle-controlled CNC lathe Gildemeister is available. Center distance: 1500mm, max. turning length: 1500mm, swing diameter over bed/cross slide: 500mm/290mm, speed: 2800rpm, spindle bore: 70mm, spindle torque: 1050Nm, travel X/Z: 260mm/1600mm, rapid traverse X/Z: 6m/8m/min, feed rate: 5m/min, feed force: 5kN, tailstock quill stroke: 180mm, tailstock quill diameter: 80mm. Machine dimensions X/Y/Z: approx. 3200mm/1800mm/1900mm, weight: approx. 3100kg, operating hours: 79727h. Documentation available. On-site inspection is possible. Gkedpfx Aijx Uq Uhovjc

Condition: ready for operation (used), Year of construction: 2004, functionality: fully functional, spindle speed (max.): 6,000 rpm, bar passage: 65 mm, Equipment: bar feeder, chip conveyor, TECHNICAL DETAILS Tool turret Number of turrets: 3 Tool holder: VDI 25 W-gear Main and counter spindle Main and counter spindle speed: up to 6,000 rpm Bar diameter: 65 mm Gjdsz Ibf Eopfx Aivekc MACHINE DETAILS Coolant tank: 600 l Coolant pressure: 8 / 18 bar EQUIPMENT Gantry removal device Hainbuch HS Axzug / GS Axfix Chip conveyor Coolant tank with strainer basket Coolant pump Coolant cooling unit FMB Turbo 10-65, 3-meter bar feeder

Condition: new, neu ca. 4 Monate ab Auftragse Bulgarien 79430 € 1501.23 € 600 mm 1500 mm 300 mm 80 mm 400 mm 400 mm 8 90 MK 3 20 - 100, 80 - 400, 400 - U/Min max. 8 m/min max. 8 m/min 290 mm 90 mm 5 MK 225 mm Gkjdpfjwirn Sjx Aivec 11 kW 3,5 / 22 kW/Nm 1,75 / 11 kW/Nm 120 Nm 1250 daN 1050 daN Fast and simple communication between the operator and the lathe. Simple workpieces are machined in the same way as on the universal lathe, but more efficient. Complicated workpieces are machined in the same way as on the universal lathe, but faster. Complicated workpieces are machined in the same way as on the CNC lathe, but easier. Based on the controller Schneider Magelis the intelligent, self-developed ZMM Sliven software leads the operator also without programming skills simple and fast to the finished workpiece. The interface is simple and with large icons, which is convenient in a specific work environment. The intuitive menu facilitates the transition to next screens and operations. Well visualized and structured cyclic operations,threads and steps. Possibility to set up the feeds, threads, etc. both mechanically and digitally (via the display). The manual, automatic and combined mode allows more precise operation compared to universal lathe. Easy transition from manual to automatic operation mode. ACCESSORIES: Siemens motor with Siemens Inverter (3 gear steps) CNC control Schneider Magelis Quick change tool post Amestra Multifix Typ C inkl. 4 Halter (3x Rechteck, 1 Rund) 3-jaw chuck Bison 3204/DIN6350, Ø 250 mm, max. 2500 r/min Spindle dead center Ball screw spindles for longitudinal and cross axes Coolant equipment Full length rear splash guard Spindle protection Splash guard for the chuck Levelling bols and shims Quick release tailstock Machine lamp Operating manual Machine according to "CE“ FURTHER TURNING LENGTHS: 1000 mm € 78 030,00 mm € 81030,00 mm € 84130,00 mm € 87330,00 mm € 90630,00

Condition: used, Year of construction: 2008, bar material dia. 65 mm turning speeds 5.000 min-1 Number of working hours 34979 h spindle hours 72260 h control FANUC 310 i weight of the machine ca. 8800 kg dimensions of the machine ca. 4500x1990x2300 mm Number of controlled spindles (C axes): 2 Number of controlled axes: 8 Number of channels: 3 Max. bar diameter: 65 mm Bore in tie rod: 75 mm Chuck diameter: 175 mm Spindle nose: 140 mm Max. speed: 5,000 rpm Nominal torque: 191 Nm Nominal power: 20 kW DATA FOR THE W2 AXIS OF THE COUNTER SPINDLE Stroke: 690 mm Rapid traverse: 30 m/min Max. acceleration: 5 m/s² Nominal force: 2,400 N X1 AXIS DATA Stroke: 165 mm Rapid traverse: 40 m/min Max. acceleration: 10 m/s² Nominal force: 2,400 N Z1 AXIS DATA Stroke: 678 mm Rapid traverse: 30 mm Max. acceleration: 5 m/s² Nominal force: 5,000 N Y1 AXIS DATA Stroke: 80(+50/-30) mm Rapid traverse: 30 m/min Max. acceleration: 5 m/s² Nominal force: 5,000 N X2 AXIS DATA Stroke: 165 mm Rapid traverse: 30 m/min Max. acceleration: 5 m/s² Nominal force: 5,000 N Gkjdeyat Hvspfx Aivsc Number of tool stations: 12 Tool holder diameter: 30 mm Driven stations: 12 mm Max. speed of driven tools: 4,000 rpm Translated with (free version)

Condition: used, Year of construction: 1998, Technical details: turning diameter over bed: 600 mm turning diameter over support: 400 mm turning length: 2000 mm center height over support: 300 mm centre distance: 1600 mm Gjdsw Rkt Iepfx Aivokc revolution per minute: 3 - 2.500 U/min tailstock taper MT: MK 5 spindle bore of work spindle: 62 mm quill stroke: 190 mm longitudinal feeds:: ca.0,001-10 einstellbar mm/U cross feed: ca. 0,001-5 einstellbar mm/U Rapid feed X axis: bis zu 5000 m/min. total power requirement: 40 KVA weight of the machine ca.: 5,6 t dimension machine xH: 4,0 x 2,0 x 1,9 m incl. accessories see picture *

Condition: used, Year of construction: 2014, Technical details: turning diameter over bed: 660 mm turning dia. over face-slide: 460 mm turning length: 1650 mm centre distance: ca. 2200 mm swing over bed: 660 mm swing diameter over slide rest: 460 mm swing diameter: in Kröpfung: 960 mm centre height: 320 mm control: Siemens 828 D ShopTurn x-axis: ca. 350 (plan) mm spindle bore: Ø 105 mm range of revolution per miute: 26-224 / 225-670 / 671-2.000 stufenlos U/min Gjdpfx Asu Ix Nreivjkc feed continuous: X: 0,5 - 3.000 mm/min feed continuous: Z: 1 - 3.000 rapid traverse x + z axis: 6 m/min tailstock taper MT: MK 6 quill stroke: 300 mm total power requirement: ca. 23 kW dimension machine xH: 4,2 x 2,3 x 2,3 m dimension swarf conveyor LxWxH: 2,3 x 1,7 x 1,3 m Chip conveyor includes cooling water tank with pump 3-speed manual gearbox with electronic gear shifting Tool holder according to/with Silent Tool Technology equipped (Capto C6) Manual control unit Foot switch Control panel Hydraulics automatic door closing (pneumatic) Accessories see comparable in the photo. *

Year of construction: 1993, condition: ready for operation (used), Center height: 280mm, distance between centers: 2000mm, turning diameter over bed/cross slide: 570mm/365mm, spindle bore: 62mm, speed: 2500rpm, max. workpiece weight: 1000kg, bed width: 360mm. Machine dimensions X/Y/Z: approx. 4000mm/2250mm/2000mm, weight: approx. 5500kg, control: Siemens. An on-site inspection is possible. Gjdpjxq Eyujfx Aivekc

Condition: good (used), Year of construction: 2007, cycle controlled lathe Machine type: Weiler E 120 x 3.000 Control: Weiler D3 Year: 2007 Power on time: ca. 41.000 h SPECIFICATIONS Max. turning length: 3.000 mm Turningdiameter: 830 mm Max. swing over bed: 1.200 mm Bettbreite 600 mm Spindle bore: 165 mm Spindelkopf DIN55027 Gr 15 Collets: Forkardt 3KS 800mm Spindle speeds: 1 - 280 / 4 - 900 rpm Transmission ratio: 2 Torque: 8.000 Nm Gksdjzizd Topfx Aivoc Amount of turrets: 1 Sauter 4-Fach Kopfrevolver für 140mm Aufnahmen Tailstock Quill diameter: 140 mm quill range: 400 mm Equipment Electronical handwheel Hydraulisches Kraftspannfutter Forkardt 3KS 800mm Chip conveyor

Condition: excellent (used), Year of construction: 1986, Heavy-duty lathe, cycle-controlled lathe, lathe, center- and feed-screw lathe, center- and feed-screw lathe, CNC lathe -Control: Monforts Control System MTC K -Machine bed: hardened Gsdpfew E Nkiox Aivokc -Turning length: 1100 mm -Turning Ø over bed: 560 mm -Turning Ø over support: 300 mm -Spindle bore: Ø 60 mm -Spindle speeds: 2 - 2800 rpm -Key bar chuck: Schunk Ø 250 mm -Tailstock mount: MK5 -Drive: 16 kW -Accessories: Multifix tool holder, tools see photos -Dimensions: 1600/2860/H1830 mm -Weight: 3300 kg