Used Deckel Dmu 50 for sale (693)

Condition: ready for operation (used), Year of construction: 1996, operating hours: 12,800 h, number of axes: 5, This 5-axis DECKEL MAHO DMU 50V was manufactured in 1996. It features a Millplus control system with software version DV400, an external hydraulic unit for clamping devices, and a Hainbuch hydraulic vise for BZI32 collet. If you are looking to get high-quality milling capabilities, consider the DECKEL MAHO DMU 50V machine we have for sale. Contact us for more information about this machine. Additional equipment • Hainbuch Hydraulic Vise for BZI32 Collet Machine Benefits Technical Machine Benefits • Machine is operated with a motor encoder due to c-axis encoder currently defective. • Internal cooling: 40 bar • External hydraulic unit for clamping devices • Counterholder on the rotary table • Rotary union on the table • Tool positions: 24 tool positions – 2 partially available (space is broken) Iedpfjx U Tinox Adwoal • Measuring probe: renishaw – prepared Extra Information Machine still under power

Condition: excellent (used), Year of construction: 1999, operating hours: 37,300 h, functionality: fully functional, X-travel 500 mm Y-travel 400 mm Z-travel 400 mm Control: Heidenhain TNC Speed range - main spindle 20 - 9,000 rpm Drive power - main spindle 9 / 13 kW Table diameter 700 x 500 mm Swiveling B: 105° (-10°/+95°) manually Rotatable 360° manually Max. table load 200 kg Number of T-slots: 7 Centering hole 30H7 mm Number of tool positions: 16 positions Tool holder ISO 40 DIN 69871 Max. tool length 290 mm Max. tool weight 6.0 kg Max. total weight 50 kg Max. feed rate 10,000 mm/min Total power requirement 17 kW Machine weight approx. 3.2 t Space requirement approx. 4.0 x 4.0 x 2.5 m Iajdswm Nqrjpfx Adwsl

Condition: used, Year of construction: 2001, operating hours: 7,343 h, travel distance X-axis: 500 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 400 mm, The DECKEL MAHO DMU 50T machining center is a machine that enables the rapid and precise production of complex components using multiple tools. The machine can use multiple tools in a single cycle, automatically fed to the spindle as needed. A single machine can perform operations such as drilling, milling, threading, and reaming. Control of such a machine is entrusted to CNC control systems, the most efficient control system used in machining. Technical data of the DECKEL MAHO DMU 50T machining center : -Year of construction 2001 -Number of working hours: 7343 -Heidenhain TNC 426/430 control -Axis: X500 Y400 Z400 C and B axis -Table 700x500mm Isdpfox Nm Tiex Adwsal -Spindle speed 20 - 9,000 rpm -Tool magazine 16-items -SK40 tool holder

Condition: excellent (used), functionality: fully functional, Equipment: chip conveyor, Universal milling machine Deckel Maho DMU 50T with TNC 426 / 430 control from Heidenhain with chip conveyor Technical data: >> Year of manufacture 2000 >> Heidenhain control TNC 426 / 430 >> Travel paths X500/Y400/Z400 >> C and B axis manual with digital display >> Work spindle: Max. torque 88 Nm Iaedsvyr N Sepfx Adwol Max. spindle speed 20 - 9,000 rpm Tool holder SK40 >> Feed X, Y, Z -10,000 mm/min Rapid traverse X, Y, Z 12 m/min >> Tool magazine: Number of tools 16 >> Table Ø700x500mm >> Swivel range +95° /-10° >> Dimensions and weight: Dimensions 2,200 x 4,000 x 2,450 mm Weight approx. 3,500 kg >> Coolant system >> Power connection 400V kVA 17 About the machine: Offered is a Deckel Maho DMU 50T universal milling machine with a Heidenhain TNC 426/430 control in very good condition. The table can be manually (digitally) adjusted using two additional axes B and C. The machine runs smoothly and precisely. The DMU 50T has a chip conveyor. Take the opportunity to view and try out the machine on site with power on.

Year of construction: 2002, condition: ready for operation (used), Axes: 5, travel X/Y/Z: 500mm/400mm/400mm, speed: 9000rpm, spindle power: 9kW/13kW, tool stations: 16, max. tool length: 290mm, max. tool weight: 6kg, max. table load: 200kg, feed rate: 10m/min, rapid traverse: 12m/min. Machine dimensions X/Y/Z: approx. 4500mm/4000mm/2500mm, weight: approx. 3400kg, control: Heidenhain MillPlus, operating hours: 34724h, spindle hours: 6490h. One operating button of the machine is defective, and the tool is sporadically not ejected. Documentation available. An on-site inspection is possible. This machine was used for training purposes. Iaedpfox Aupiex Adwol

Condition: excellent (used), functionality: fully functional, Universal milling machine Deckel Maho DMU 50M with line control TNC 124 from Heidenhain TOP condition !!! Technical data: >> Year of construction 1998 >> Heidenhain control TNC 124 >> Traverse paths X500/Y400/Z400 >> C and B axis manual with display >> Speed 20- 4500 1/min >> Feed 5000mm/min >> rapid traverse 5m/min >> Tool holder SK 40 >> Table Ø700x500mm >> swivel range +95° /-10° >> electronic handwheel >> Weight 2800Kg Iaodpjr Hbf Tofx Adwjl >> Machine dimensions approx. 4.0 m x 2.5 m height 2.6 m >> Coolant device >> Power connection 400V 32A About the machine : We are offering a Deckel Maho DMU 50M universal milling machine with a Heidenhain TNC 124 line control in very good condition. The table is manually (digitally) adjustable by two additional axes B and C. A very easy to operate control, it can enter and approach positions, deep and thread drilling, drilling patterns, hole circles, hole rows and rectangular pocket milling. Programs can be entered and read out via an interface. The Heidenhain line control makes work easier and even more precise. The milling machine was used in a large company for training purposes. Take the opportunity to inspect and try out the machine under power on site.

Condition: ready for operation (used), Year of construction: 1998, Spindle speed range: 9000rpm, travel X/Y/Z: 500mm/400mm/400mm, feed rate: 10000mm/min, rapid traverse: 12m/min. Table dimensions X/Y: 700mm/500mm, max. table load: 200kg, number of T-slots: 7, distance between T-slots: 63mm. Control: Heidenhain, tool changer: 16-fold, dimensions X/Y/Z: 4000mm/2200mm/2450mm, weight: approx. 3500kg. Iajdpfxew Tc Nyj Adwel

Condition: excellent (used), functionality: fully functional, Universal milling machine Deckel Maho DMU 50M with line control TNC 124 from Heidenhain TOP condition !!! Technical data: >> Year of construction 1998 >> Heidenhain control TNC 124 >> Traverse paths X500/Y400/Z400 >> C and B axis manual with display >> Speed 20- 4500 1/min >> Feed 5000mm/min >> rapid traverse 5m/min >> Tool holder SK 40 >> Table Ø700x500mm Iasdpfxjr Hbf Es Adwjl >> swivel range +95° /-10° >> electronic handwheel >> Weight 2800Kg >> Machine dimensions approx. 4.0 m x 2.5 m height 2.6 m >> Coolant device >> Power connection 400V 32A About the machine : We are offering a Deckel Maho DMU 50M universal milling machine with a Heidenhain TNC 124 line control in very good condition. The table is manually (digitally) adjustable by two additional axes B and C. A very easy to operate control, it can enter and approach positions, deep and thread drilling, drilling patterns, hole circles, hole rows and rectangular pocket milling. Programs can be entered and read out via an interface. The Heidenhain line control makes work easier and even more precise. The milling machine was used in a large company for training purposes. Take the opportunity to inspect and try out the machine under power on site.

Condition: ready for operation (used), Year of construction: 2001, - USED - 5-AXIS VERTICAL MACHINING CENTRE WITH ROTARY AND TILTING TABLE X-AXIS TRAVEL: 500 mm Y-AXIS TRAVEL: 400 mm Z-AXIS TRAVEL: 400 mm SPINDLE: 9000 rpm; 13 kW; HSK 63 B-AXIS: -10° +95 ° Isdpfxjwl R Dqs Adwjal C-AXIS: 360 ° TABLE SIZE: 700 x 500 mm MAX ADMITTED LOAD: 200 Kg TOOL MAGAZINE: CHAIN-TYPE ; 16 POS CONTROL UNIT: HEIDENHAIN WEIGHT: 3000 Kg OVERALL DIMENSIONS: 2000 x 1520 x 2140 mm ACCESSORIES: SWARF CONVEYOR NOTE: MANUAL 5th AXIS

Condition: good (used), Year of construction: 2005, operating hours: 84,564 h, functionality: fully functional, travel distance X-axis: 500 mm, travel distance Y-axis: 450 mm, travel distance Z-axis: 400 mm, rapid traverse X-axis: 12 m/min, rapid traverse Y-axis: 12 m/min, rapid traverse Z-axis: 12 m/min, feed rate X-axis: 10 m/min, feed rate Y-axis: 10 m/min, feed rate Z-axis: 10 m/min, nominal power (apparent): 17 kVA, controller manufacturer: iTNC 530 Heidenhain, controller model: iTNC 530 Heidenhain, total height: 2,500 mm, total length: 3,000 mm, total width: 3,000 mm, table width: 500 mm, table length: 650 mm, table load: 200 kg, spindle speed (min.): 20 rpm, spindle speed (max.): 10,000 rpm, operating hours of spindle: 22,855 h, spindle motor power: 13,000 W, number of slots in tool magazine: 16, tool length: 300 mm, tool diameter: 130 mm, tool weight: 6 g, Equipment: rotational speed infinitely variable, The machine is in good condition. A few things have been redone and freshened up. The following has been overhauled: -Complete X-axis bearing including ball screw and bearing -Various hydraulic components -Tool changer reset and sensors replaced -New door switch installed -New discs installed (unfortunately already got some flying chips again) -New coolant pump -New screen, as it was defective Iedpfx Asvtnm Hsdweal -New handwheel HR410 The machine does not have many spindle hours or switch-on hours. The machine has never seen a series production and has always been operated sensibly. Warm-up programs etc. We are tool and mold makers, so we tend to do more complex contours rather than heavy machining. I am only selling this because I need a simultaneous machine and also more travel paths. Technical data: Year of manufacture 2005 x-travel 500 mm y-travel 450 mm z-travel 400 mm Control iTNC 530 Heidenhain Main spindle Speed range - main spindle 20 - 10,000 rpm Drive power - main spindle 9 / 13 kW Torque 57 / 82 Nm Tool holder SK 40 Rotary table Table clamping area 630 x 500 mm Swivel range -5 / +110 ° Max. table load 200 kg T-slots 14 H7 T-slots - distance 63 mm C-axis +/- 360 ° Feeds: Rapid traverse (X / Y / Z) 12 m/min Feed rate 10,000 mm/min Tool changer: Tool positions 16 pos. Max. tool weight 6 kg Max. tool length 300 mm Max. tool diameter 80 mm Max. tool diameter with free adjacent box 130 mm Tool holder SK 40 Total power requirement 17 kVA Machine weight approx. 3.6 t Space requirement approx. 3.0 x 3.0 x 2.5 m Tool milling machine - Universal DECKEL MAHO - DMU 50 Attention: no chip conveyor and no automatic measuring probe! - 5 axes (3+2) - WITHOUT tools Attached are pictures of the machine. The machine was intentionally not cleaned before taking the pictures, so it is in the "chip" and is used daily. You can also see the hours of the machine there. Kinematics and geometry are OK. for our needs, but could possibly be re-measured. We have never had any crashes etc.

Condition: excellent (used), Year of construction: 2002, functionality: fully functional, travel distance X-axis: 500 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 400 mm, feed rate X-axis: 5 m/min, feed rate Y-axis: 5 m/min, feed rate Z-axis: 5 m/min, spindle speed (max.): 4,500 rpm, Equipment: rotational speed infinitely variable, Dear Sir or Madam, For sale is a 3+2-axis CNC machining center, type Deckel Maho DMU50M. The Heidenhain TNC310 contouring control (also available with Siemens 810D!) makes the DMU a fully-fledged CNC machine for both production and training applications. Due to the absence of a tool changer and the conveniently positioned maintenance doors, the DMU50M requires very little space and can be positioned almost directly against a wall. The machine has been thoroughly tested in our workshop, is therefore in excellent condition, and is ready for immediate use. We look forward to receiving your inquiry! Delivery time: immediately available Machine no. xxxx Year of manufacture: 2002 Control: Heidenhain TNC310 or Siemens 810D (including Shopmill) Table design: Rotary and tilting table Speed: 20-4500 rpm, continuously programmable Iaodpfov Sy Sfjx Adwel Feed rate: 0-5000 mm/min, continuously programmable Travel ranges X/Y/Z: 500/400/400 mm Tool holder: SK40 Tightening system: pneumatic Handwheels: 3-axis electronic / B+C axes mechanical Weight: approx. 2800 kg Further equipment and accessories: upon request Our service promise to you: - We are a certified master machine shop - All machines are thoroughly checked - All lubricants and any worn parts are replaced in advance - Upon request, we can completely or partially overhaul the selected machine - About the paint color of the selected machine You can decide freely. - If you wish, you can order additional accessories such as tools, etc. directly. - If you wish, we can install additional accessories such as safety devices, etc. - We are happy to take care of shipping and/or installation.

Condition: used, Year of construction: 1999, x-travel 800 mm Iaedsxqrh Ejpfx Adwel y-travel 700 mm z-travel 600 mm Control Heidenhain Millplus weight of the machine ca. 12,5 t

Condition: ready for operation (used), Year of construction: 2001, travel distance X-axis: 1,800 mm, travel distance Y-axis: 2,000 mm, travel distance Z-axis: 1,100 mm, controller manufacturer: HEIDENHAIN, controller model: TNC 426, number of axes: 3, This 3-axis DECKEL MAHO DMU 200T was manufactured in 2001. It features a Heidenhain TNC 426 control, a spindle speed of 5000 rpm, and movement lengths of X: 1800 mm, Y: 2000 mm, Z: 1100 mm. It also includes an HSK-E32 tool holder with 60 slots. If you are looking to get high quality milling capabilities consider the DECKEL MAHO DMU 200T machine we have for sale. Contact us for more information. Extra Information Iodpfx Aoyair Isdweal Machine still under power

Condition: used, Year of construction: 2006, x-travel 880 mm y-travel 630 mm z-travel 630 mm control iTNC 530 Heidenhain turning speed range - main spindle max. 18.000 min/-1 power capacity - main spindel 28 / 19 kW max. Torque 121 Nm tool taper HSK-A 63 swivellable B: +30° / -120 ° table surface area Ø 700 / 1.250 x 700 mm max. table load 650 kg rotatable C: 360 ° number of toolpositions 2x16 pos. tool taper HSK-A 63 max. tool diameter 80 mm max. tool-dia with free toolbox 130 mm max. tool weight 8,0 kg max. tool length 315 mm Iajdpfjyackdox Adwjl feed speeds max. 30.000 mm/min rapid traverse 30 m/min total power requirement 48 kVA weight of the machine ca. 14,0 t dimensions of the machine ca. 4,5 x 4,0 x 2,6 m 5 Axis CNC - MachiningCenter Universal DECKEL MAHO - DMU 80 monoBLOCK - NC-Rotary Table (C-Achse) integrated in rigid-table - Swivel-Milling-Head (B-Achse)

Condition: reconditioned (used), Year of construction: 2006, CNC Universal Milling & Drilling Machine DECKEL MAHO DMU 80 P duoBlock With MILL PLUS iT path control system Year of manufacture: 2006 Travel paths: X 800 Y 800 Z 800 mm Spindle speed range: 0 – 8,000 rpm, stepless (SK 50) Including the following accessories: - NC rotary table, 900 mm x 700 mm clamping surface (maximum table load 1.4 t) - Universal milling head with controlled B-axis - Universal tool changer with 40 magazine stations, double gripper (SK 50) - Fully enclosed guard cabin with sliding doors and interior lighting - ICS – 40 bar (internal coolant supply) - Chip conveyor - Rotoclear - 3D tactile probe Heidenhain TS 641 Isdpfx Asxn Aczedwsal - Operating modes 3 + 4 - Electronic handwheel - 50 pcs. tool holders SK 50 - 3 height-adjustable machine feet - Transport device - Operating manuals

Condition: used, Year of construction: 1999, serial number 10970000633 control 3D Bahnsteuerung MILLPLUS letzte Ausbaust Iodpfxjx Uz Aps Adwsal Control 67 10.221.661 x-travel 600 mm y-travel 700 mm z-travel 550 mm spindle SK40 - neu - 380 Std. spindle speed: 12.000 U/min tool change unit 30 Plätze Infrarot-Taster 600 L 40 bar mode of operation 3 + 4 MillPlus IT flushing gun mit Pumpe Durchmesser 630 mm T-slots 9 T-Nuten 14 H7 / 63 mm capacity 700 kg

Condition: good (used), Year of construction: 2008, 1 used vertical machining center Manufacturer: Deckel Maho Model: DMU 80 monoblock Year of manufacture: 2008 Control: ITNC 530 Ijdpexa Eudefx Adwsal Technical specifications X travel: 980 mm Y travel: 630 mm Z travel: 630 mm Control: iTNC 530 Total power requirement: 10 / 15 kW Machine weight approx.: 9.5 t Space requirements approx.: 4*4*2.5 m Additional information Equipment: Electronic handwheel Operation mode 4 Manual swivel milling head Motor spindle 12,000 rpm SK 40 / Clamping DIN 69872 32-tool magazine Fixed table 1250 x 700 mm Chip conveyor Coolant system

Condition: good (used), DECKEL Milling Machine, Tool Milling Machine DMU 35 M 3 x 2-axis CNC milling machine With SIEMENS 810 D – ShopMill software Year of manufacture: 2001-2003 Travel distances X/Y/Z: 350 x 240 x 340 mm Infinitely variable spindle speed: 20 – 6,300 rpm Spindle taper: SK 40 DIN 69871 Drawbar: DIN 69872 Drive power: 6.3 / 10 kW (100/40% duty cycle) Torque: 55/80 Nm max. Universal swivel/rotary table: 400 x 290 mm Table load capacity: 100 kg Isdpfx Asxz Rdaodwoal Distance spindle nose to table: min./max. 145/485 mm Feed rates: 3,000 mm/min Rapid traverse: 5,000 mm/min Input increment: 0.01 mm Rotation range: 360 degrees Swivel range: degrees Total power requirement: kVA Weight: approx. 1,750 kg Technical data subject to change! Equipment / Accessories: Direct position measuring system for 3 axes Spindle drive via servo motor with toothed belt 2 gearbox stages Full safety enclosure with sliding door Swiveling control panel Coolant nozzles on vertical head Coolant system Chip tray with coolant tank Electronic handwheel Machine feet Machine lamp Interface Serial RS232C, LAN (RJ45) The machine is perfect for prototyping, toolmaking, training, mechanical workshops, gunsmiths, etc. It impresses with its versatility, with the additional manually operated rotary-swivel table allowing 5-sided machining. Available in March 2026 A total of 3 machines are available. Condition: Good to very good from a vocational training center, see pictures

Condition: ready for operation (used), Year of construction: 2001, General Data Machine weight 6500 kg Control Unit Brand SIEMENS Iodpfx Aox R E Iujdweal Model Sinumerik 840D Main Drive Spindle speed range 18000 rpm Spindle motor power 35 kW Number of axis 3 Movement X-Axis Movement 560 mm Y-Axis Movement 560 mm Z-Axis Movement 510 mm This 4-axis DECKEL MAHO DMC 50 H horizontal machining centre was manufactured in 2001. Ideal for precision machining, it offers robust construction and reliable performance. Contact us for more information about this machine. Application Types Milling

Condition: used, Year of construction: 2007, x-travel 880 mm y-travel 630 mm z-travel 630 mm control iTNC 530 Heidenhain turning speed range - main spindle max. 18.000 min/-1 power capacity - main spindel 28 / 19 kW max. Torque 121 Nm tool taper HSK-A 63 swivellable B: +30° / -120 ° table surface area Ø 700 / 1.250 x 700 mm max. table load 650 kg rotatable C: 360 ° number of toolpositions 2x16 pos. tool taper HSK-A 63 max. tool diameter 80 mm max. tool-dia with free toolbox 130 mm max. tool weight 8,0 kg max. tool length 315 mm feed speeds max. 30.000 mm/min rapid traverse 30 m/min total power requirement 48 kVA weight of the machine ca. 14,0 t dimensions of the machine ca. 4,5 x 4,0 x 2,6 m 5 Axis CNC - MachiningCenter Universal DECKEL MAHO - DMU 80 monoBLOCK - NC-Rotary Table (C-Achse) integrated in rigid-table - Swivel-Milling-Head (B-Achse) Iajdpfx Aeyaci Tsdwsl

Condition: excellent (used), Year of construction: 2002, Machining Centre - Universal Deckel Maho DMU 60 T Year of manufacture: 2002 Number of axes: 5 (3+2) Technical specifications: Travel paths: X-axis: 630 mm Y-axis: 560 mm Z-axis: 560 mm Magazine positions: 24 SK 40 NC rotary table integrated into fixed table. Clamping surface: 600 x 1000 mm Diameter: 600 mm Table weight: 800 kg Number of T-slots: 8 / 1 Isdpfexqfw Tjx Adwoal T-slot width: 14 H12 / 14 H7 T-slot distance: 63 mm Max. table load: 350 kg Rotatable C: 360° 5 axes - Controlled NC swivel milling head (B axis) - Rotary table integrated into fixed table (C axis)

Condition: used, Year of construction: 1999, serial number 10970000633 Ijdpfx Adex Uz Aveweal control 3D Bahnsteuerung MILLPLUS letzte Ausbaust Control 67 10.221.661 x-travel 600 mm y-travel 700 mm z-travel 550 mm spindle SK40 - neu - 380 Std. spindle speed: 12.000 U/min tool change unit 30 Plätze Infrarot-Taster 600 L 40 bar mode of operation 3 + 4 MillPlus IT flushing gun mit Pumpe Durchmesser 630 mm T-slots 9 T-Nuten 14 H7 / 63 mm capacity 700 kg

Condition: ready for operation (used), Year of construction: 2003, operating hours: 93,500 h, travel distance X-axis: 1,180 mm, travel distance Y-axis: 710 mm, travel distance Z-axis: 710 mm, controller manufacturer: HEIDENHAIN, controller model: TNC 430, number of axes: 5, This 5-axis DECKEL MAHO DMC 100 T was manufactured in 2003. It features X, Y, Z travels of 1,180 mm, 710 mm, and 710 mm respectively, a SK40 tool magazine with 32 positions, internal coolant supply, and a chip conveyor. Consider the opportunity to buy this DECKEL MAHO DMC 100 T vertical machining centre. Contact us for more information about this machine. Machine Benefits Technical Machine Benefits • Internal coolant supply • Chip conveyor Extra Information Machine still under power Iodpfex T Dgnox Adwoal Technical Specification Through-spindle Coolant Yes

Condition: excellent (used), Year of construction: 2006, 5-axis CNC machining center 2006 Control: Heidenhain iTNC 530 Technical data: Iedpown A Slefx Adwjal x-axis travel 880 mm y-axis travel 630 mm z-axis travel 630 mm Max. torque 130 Nm tool holder SK 40 (ISO 7388IIB) swiveling B: 103° Work table: Clamping surface 1,250 x 700 mm Rotary table diameter 700 mm rotatable C: 360 ° Max. table load approx. 500 kg T-slots 11x 14mm x 63mm Tool magazine: Number of tool places 32 (2x 16) pos. tool holder SK 40 (ISO 7388IIB) Max. tool diameter 80 / 130 mm Max. tool diameter with free neighbor box 160 mm Max. tool length 315 mm Max. tool weight 8.0 kg

Condition: excellent (used), Year of construction: 2002, 5-Axis Machining Center - Universal DECKEL MAHO DMU 70 EVO Year of manufacture: 2002 Iajdpfx Adexf Hlhjwjl Control: MillPlus iT Heidenhain Machine hours: 33,289.6 h Spindle hours: 10,533.5 h Technical Data: X-axis travel: 750 mm Y-axis travel: 600 mm Z-axis travel: 520 mm Main Spindle: Speed range - main spindle: 20 - 18,000 rpm Drive power - main spindle: 35 / 25 kW Max. torque: 130 / 87 Nm NC Rotary Swivel Table: Clamping surface: 700 x 500 mm Swivel range, B-axis: 180° Rotatable, C-axis: 360° Max. table load: 350 kg Centering bore: 30 H6 mm T-slots: 7x 14H7 x 63 mm Table speed range: 21.5 rpm Tool Magazine: Number of tool positions: 32 Max. tool length: 315 mm Max. tool diameter: 105 mm Max. tool diameter with adjacent pockets empty: 130 mm Max. tool weight: 6 kg