Used Dmg Gildemeister Dmc 635V Eco for sale (6,918)

Condition: ready for operation (used), Year of construction: 2010, X-axis: 635mm, y-axis: 510mm, z-axis: 460mm, clamping surface dimensions: 790x560mm, max. spindle speed: 8000rpm, control: Heidenhain TNC 620, connected load: 17kVA, spindle motor drive power: 8.4kW at 100% duty cycle, length: 3290mm, width: 2920mm, height: 2650mm, weight: 3.8t, operating hours: 27,125h, spindle hours: 8668h. Equipment: SK 40 DIN69871 tool holder, 20-position tool changer, coolant system 3.7bar, DMG TS 649 electronic touch probe, Heidenhain TT140 tool measurement system, Lehmann FA-510L-485 A-axis indexing unit s/n A756, four-jaw chuck, Vischer & Bolli zero-point clamping system, chip conveyor, chip cart, workbench with hand tools, milling and drilling tools, platform trolley for the indexing unit, tools and accessories, various tool holders approx. 36 pieces, various accessories, spare parts and documentation. An on-site inspection is possible. Dsdpozrn Iwjfx Ailocn

Condition: excellent (used), Year of construction: 2009, functionality: fully functional, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, Vertical machining center Manufacturer: DMG Gildemeister Type: DMC 635 v eco Machine No.: 1537000170A Year of manufacture: 2009 Control system: Siemens 810D Shopmill Axes: 3 Travel ranges Dcjdpfx Aiez I Rnvelen X: 635 mm Y: 510 mm Z: 460 mm Tool changer: 20 positions, SK 40 Spindle speed: 20-8,000 rpm Drive power: 13/9 kW (40/100% ED) - Direct path measuring system for X, Y, and Z axes - Compressed air for measuring systems - Coolant/air switchover - Table size 560x790 mm - Electronic handwheel Errors and prior sale excepted.

Condition: used, Year of construction: 2012, feed length X-axis: 635 mm, feed length Y-axis: 510 mm, feed length Z-axis: 460 mm, controller model: Sinumerik, table width: 560 mm, table length: 790 mm, spindle speed (max.): 10,000 rpm, spindle mount: MK 4, We offer this used DMG DMC 635 V eco vertical machining center, manufactured in 2012. Serial number: 1537000588A Dodpfx Ajz Iy A Aeilscn X/Y/Z: 635 × 510 × 460 mm Table: 790 × 560 mm Spindle speed: up to 10,000 rpm SK40 Sinumerik Spindle refurbished in October 2019. First owner If you have any questions or require further information, please send a message or contact us by phone.

Condition: used, Year of construction: 2011, feed length X-axis: 635 mm, feed length Y-axis: 510 mm, feed length Z-axis: 460 mm, controller model: Sinumerik, table width: 560 mm, table length: 790 mm, rotational speed (max.): 10,000 rpm, overall weight: 3,900 kg, spindle speed (max.): 10,000 rpm, We offer this used DMG ECOLINE DMC 635 V eco vertical machining center, manufactured in 2011. Serial number: 1537000413A Year of manufacture: 2011 Maximum spindle speed: 10,000 rpm X/Y/Z: 635 x 510 x 460 mm Djdpfx Aiez Iyzroljcn Table: 790 x 560 mm SK40, Sinumerik Spindle refurbished in October 2024 First owner Weight: 3900 kg If you have any questions or require further information, please send us a message or contact us by phone.

Condition: excellent (used), Year of construction: 2014, DMG MORI DMC 635V ecoline Year Built 2014 Control : Heidenhian Dedexgk Nmjpfx Ailocn Spindle 12,000rpm Taper : BT40 ATC 30

Condition: excellent (used), Year of construction: 2012, Technical data: 3-axis machine: X, Y, Z Travel ranges (X/Y/Z): 635 / 510 / 460 mm CNC control: SIEMENS 840D Table size: 790 x 560 mm Max. workpiece weight: 600 kg Tool holder: SK 40 Number of positions in the tool changer: 30 Spindle speed: 20 – 12000 rpm Motor power: 13 kW Dimensions (length x width x height): approx. 3400 x 2450 x 2800 mm Machine weight: approx. 4.3 tons Condition: very good condition, little use Dodpfx Aiezn Ranjljcn The seller is not liable for typographical or data transmission errors. The machine's appearance, technology, and wear are consistent with its age; used machines are sold without any warranty.

Condition: good (used), Year of construction: 2008, Working hours: - Power on: 44113 - Spindle hours: 13284 Equipped with: * CNC control SIEMENS 810 D powerline * 20-station ATC * Coolant equipment * Chip conveyor x-travel 1035 mm y-travel 560 mm z-travel 510 mm table surface area 1200 x 560 mm table load 1000 kg tool taper SK 40 spindle turning speed - stepless 20 - 8000 rpm feeds longditudinal/cross/vertical - 20000 mm/min rapid traverse 25 m/min Djdozquqiepfx Ailscn spindle drive motor 13 kW dimensions of machine 2,6 x 2,6 x 2,7 m weight of the machine approx. 4,1 t

Condition: excellent (used), Deckel Maho DMC 635V in top condition – few spindle hours (Heidenhain iTNC 530) For sale is a highly precise and excellently maintained Deckel Maho DMC 635V. The machine has very few spindle hours and is in excellent technical and visual condition. Technical data Control: Heidenhain iTNC 530 Travel (X/Y/Z): 635 / 510 / 460 mm Table clamping area: 790 x 560 mm Spindle speed: 20 – 8,000 rpm Feed rate: 0.01 – 10,000 mm/min Rapid traverse: 30 m/min Tool holder: SK40 (DIN 69871) Tool magazine: 20 positions Machine weight: approx. 3,600 kg Dcjdpfx Aiez E A Hrsljn Equipment & accessories Electronic handwheel Coolant/air blast switchover (M25) Coolant nozzle Machine condition The machine has been technically refurbished by us and is ready for immediate use: The geometry has been completely measured and is verifiably within the manufacturer's tolerance for new machines (geometry protocol included). All hoses have been preventively replaced. The machine has been thoroughly cleaned. An inspection and a detailed test under power are of course possible at our location. Everything from a single source: Baumgärtner CNC GmbH & Co. KG We are a specialist company that focuses on the service, maintenance, overhaul and automation of DMG machines as well as other well-known manufacturers. That is why we will not leave you alone even after the purchase. We will support you! We would also like to offer you the following: Transport and professional installation Installation and commissioning at your location Subsequent maintenance and repair work From machine purchase to ongoing production – you can rely on us. Please contact us for further information or to arrange an inspection appointment.

Condition: used, Year of construction: 2014, travel distance X-axis: 1,035 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 510 mm, feed length X-axis: 1,035 mm, feed length Y-axis: 560 mm, feed length Z-axis: 510 mm, controller model: Sinumerik, table width: 560 mm, table length: 1,200 mm, rotational speed (max.): 8,000 rpm, overall weight: 4,500 kg, spindle speed (max.): 8,000 rpm, spindle nose: SK40, We offer this used DMG MORI DMC 1035V ecoline vertical machining center, manufactured in 2014. Factory number: 1539000738A Dsdpfx Aoz Iyv Aoiljcn Year of manufacture: 2014 X/Y/Z 1035 × 560 × 510 mm Table: 1200 × 560 mm Maximum spindle speed: 8000 rpm SK40 Sinumerik Spindle overhauled in June 2026 First owner Weight: 4500 kg If you have any questions or require further information, please send us a message or contact us by phone.

Condition: excellent (used), Year of construction: 2010, CNC machining center DMG 1035 V ecoline 2010 Siemens 810 D / Shopmill Travel ranges: X-axis: 1035 mm Y-axis: 560 mm Z-axis: 510 mm Spindle: Tool holder: SK 40 Speed range: max. 10,000 rpm Tool magazine: Dcodoz Iyp Aopfx Ailsn 20 magazine positions Table design: Fixed table 1200 x 560 mm - Chip conveyor - Internal cooling lubricant system (IKZ) 20 bar

Condition: excellent (used), Year of construction: 2011, Heidenhain TNC 620 control system Travel X/Y/Z: 1035/560/510 mm Spindle speed: 12,000 rpm Tool magazine for 30 tools, SK 40 Through-spindle cooling: 12 bar Chip conveyor Dcjdpjzfx T Djfx Ailjn

Condition: used, Year of construction: 2012, x-travel 1.035 mm y-travel 560 mm z-travel 510 mm CNC-control HEIDENHAIN TNC620 table-size 1200 x 560 mm max. table load 1000 kg spindle taper SK 40 spindle turning speed range 10.000 U/min drive capacity - spindle motor 13 kW feed stepless 20.000 mm/min rapid traverse 25 m/min tool change unit 20 Pos. coolant IKZ 20 bar voltage 400 V total power requirement 17 kVA Djdpsw A Spvofx Ailscn weight of the machine ca. 4,1 t dimensions of the machine ca. 2,55 x 2,30 x 2,25 m chip conveyor 3,90 x 0,95 x 1,60 m - Serial No.: 1539000377A - Machine ON: 21.689 h - Program Run: 9.021 h - CNC-Control: Heidenhain TNC620 - elektronic hand wheel - chip conveyor - coolant through spindle 20 bar

Condition: used, TECHNICAL DETAILS - Number of axes : 4 MILLING SPINDLE - Tool holder type : ISO40 - Spindle power : 13 [kW] - Spindle speeds : 8000 [rpm] LINEAR AXES - Travels on X/Y/Z axes : 1035/560/510 [mm] TOOL CHANGER - Auto. Tool Changer type : Bras chargeur - Tool magazine capacity : 20 TABLE - Table dimensions : 1200x560 [mm] - Maximum weight upon table : 1000 [kg] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 17 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 2850x3250 [mm] - Machine height : 2700 [mm] - Machine weight : 4300 [kg] Dodpozrh S Nofx Ailjcn MACHINE HOURS - Number of hours under power : 31240 [h] - Number of working hours : 3770 [h] EQUIPMENT - CNC : FANUC 0i-MC - Type of divisor : Par fonction M * manufacturer : NIKKEN - Coolant tank - Chips conveyor - Electric transformer

Condition: excellent (used), Year of construction: 2015, operating hours: 8,751 h, functionality: fully functional, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, table width: 560 mm, table length: 790 mm, overall weight: 3,900 kg, spindle speed (max.): 12,000 rpm, operating hours of spindle: 2,500 h, number of slots in tool magazine: 20, Equipment: chip conveyor, documentation/manual, CNC Milling Machine DMG MORI ecoMill 635 V TECHNICAL DATA: - Year of manufacture 2015 - Spindle hours approx. 2 500 hours - Program run time approx. 8 751 hours - X 635 mm - Y 510 mm - Z 460 mm - Control SIEMENS SINUMERIK 840D sl SLIMline (with ShopMill) - Spindle speed max. 12 000 rpm - Table size 790 × 560 mm - Tool magazine 20 positions (SK40) - Power 17 kW - Cast iron construction - Machine dimensions 3.4 x 2.45 x 2.6 m - Weight approx. 3 900 kg EQUIPMENT: - Through-spindle coolant - Flushing system - Air-conditioned electrical cabinet - Handwheel - USB Dodpfx Aioz Hculslecn - Technical documentation - Chip conveyor Machine in very good technical condition, connected to power – it can be inspected and tested on site by prior appointment. Professional loading is included in the price. Accessories, tooling and clamping devices shown in the photos are part of the offer only if listed under equipment. Technical data is for reference only and may contain inaccuracies. Subject to prior sale.

Condition: ready for operation (used), Year of construction: 2010, functionality: fully functional, machine/vehicle number: 1539000208A, travel distance X-axis: 1,035 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 510 mm, controller model: Heidenhain TNC 620, rotational speed (max.): 10,000 rpm, Note: The seller can offer disassembly and loading for an additional charge. TECHNICAL DETAILS Travel range, X-axis: 1,035 mm Travel range, Y-axis: 560 mm Travel range, Z-axis: 510 mm Rapid traverse rate: 25 m/min Table size: 1,200 × 560 mm Motor spindle speed: 10,000 rpm AC main drive power: 13/9 kW at 40/100 % duty cycle Tool positions: 20 Tool holder: SK 40 MACHINE DETAILS Control system: Heidenhain TNC 620 Connected load: 17 kVA Rated current: max. 28 A Fuse rating: 35 A Supply voltage: 400 V Supply frequency: 50 Hz Input voltage: 230 V Output voltage: 24 V Dcedpfxjztb Imj Ailsn Weight: 4,100 kg EQUIPMENT Electronic handwheel Chip conveyor with extended coolant tank Coolant air blast switchover Coolant spray gun Heidenhain TS 649 touch probe

Condition: ready for operation (used), Year of construction: 2010, operating hours: 11,000 h, functionality: fully functional, travel distance X-axis: 1,035 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 510 mm, controller model: Siemens 810D / ShopMill, spindle speed (max.): 10,000 rpm, TECHNICAL DETAILS Travel range, X-axis: 1,035 mm Travel range, Y-axis: 560 mm Travel range, Z-axis: 510 mm Spindle speed, max.: 10,000 rpm Dsdpfx Aozqfv Ajiljcn Table width: 560 mm Table length: 1,200 mm Number of tool magazine positions: 20 MACHINE DETAILS Control system model: Siemens 810D / ShopMill Control cabinet cooling: Rittal SK 33023.100 Spindle operating hours: 11,000 h Total operating hours: 33,600 h EQUIPMENT Internal coolant supply (ICS) Chip conveyor

Condition: excellent (used), Working travels 635 x 510 x 460 mm Table size 790 x 560 mm Spindle taper SK40 Spindle speeds -14'000 rpm Tool changer 30 Pos. Control HEIDENHAIN iTNC-530 Dedpfx Aiorx Spmoljcn 3D measuring taper Chip conveyor Misc. accessories MARCELS MASCHINEN CH

Condition: good (used), Year of construction: 2008, Vertical machining center Machine type: DMG DMC 635 V Control: Sinumerik 840 D solution line mit shopmill Year: 2008 SPECIFICATIONS Travel X-Axis: 635 mm Y-Axis: 510 mm Z-Axis: 460 mm Rapid motion: (X/Y/Z): 30 m/min. Spindle speeds: 20 - 10.000 rpm Spindle motor: 9 / 13 kW Tool: SK 40 Toolchanger Tool capacity: 20 Dsdszinciepfx Ailocn Table size: 790 x 560 mm Machine weight: 4.000 kg Equipment No chip conveyor Electronical handwheel Linear measuring system in all 3 axes

Condition: excellent (used), Year of construction: 2006, operating hours: 8,800 h, machine/vehicle number: 15405022544, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, rapid traverse X-axis: 30 m/min, rapid traverse Y-axis: 30 m/min, rapid traverse Z-axis: 30 m/min, nominal power (apparent): 35 kVA, controller manufacturer: Heidenhain, controller model: iTNC 530, workpiece length (max.): 790 mm, workpiece width (max.): 560 mm, workpiece height (max.): 460 mm, table width: 560 mm, table length: 790 mm, table load: 600 kg, overall weight: 4,500 kg, operating hours of spindle: 8,800 h, input voltage: 400 V, Equipment: documentation/manual, DECKEL MAHO DMC 635 V – CNC Machining Center – Heidenhain iTNC 530 – Year of Construction 2006 Description: For sale is a vertical 3-axis CNC machining center, DECKEL MAHO DMC 635 V, from our own machine inventory. The machine is being sold due to a restructuring of our machine park. It is in good visual condition. Inspection and a powered test run are possible by prior appointment. Technical Data: Manufacturer: DECKEL MAHO Model: DMC 635 V Dcodpfozr Iu Djx Ailon Machine Type: Vertical CNC Machining Center Year of Construction: 2006 Machine No.: 15405022544 Control: Heidenhain iTNC 530 Number of Axes: 3 Travel X-axis: 635 mm Travel Y-axis: 510 mm Travel Z-axis: 460 mm Table Size: approx. 790 × 560 mm Maximum Table Load: approx. 600 kg Tool Interface: SK 40 Rapid Traverse: up to approx. 30 m/min Machine Running Time: approx. 25,231 hours Spindle Hours: approx. 8,800 hours Connection Power: 35 kVA Operating Voltage: 400 V Frequency: 50/60 Hz Location and Handling: Location: 22926 Ahrensburg, Germany Machine available for immediate delivery Inspection possible by appointment Dismantling, loading, and transport by the buyer or by agreement Sale ex works, unloaded The offer includes only the machine and the explicitly agreed accessories. Tools and tool holders shown in the pictures are not part of the offer unless expressly agreed otherwise. Price: Negotiable, plus VAT. All technical data is provided to the best of our knowledge, but without guarantee. Subject to prior sale and errors.

Condition: ready for operation (used), Year of construction: 2015, operating hours: 1,748 h, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, controller manufacturer: SIEMENS, controller model: SINUMERIK 840 D, total height: 2,650 mm, total width: 2,530 mm, table width: 790 mm, table length: 560 mm, table load: 600 kg, overall weight: 3,900 kg, spindle speed (max.): 12,000 rpm, spindle motor power: 17,000 W, number of slots in tool magazine: 20, product length (max.): 2,050 mm, number of axes: 3, This 3-axis DMG MORI ecoMill 635 V was manufactured in 2015. It features an X-axis travel of 635 mm, Y-axis travel of 510 mm, and Z-axis travel of 460 mm. The machine has a robust table size of 790 x 560 mm and a maximum table load of 600 kg. If you are looking to get high-quality machining capabilities, consider the DMG MORI ecoMill 635 V vertical machining center we have for sale. Contact us for further details. • CNC control: electronic handwheel • Operating hours: Power on approx. 13,550 h; Spindle cutting approx. 1,748 h • Table: 790 × 560 mm • Spindle: 12,000 rpm; SK40 / ISO40; Power approx. 13–17 kW • Tool magazine: 20 positions; Automatic double‑arm tool changer • Feed rates: Rapid traverse 30 m/min • Coolant: Flood coolant system • Drives: Digital AC servo drives • Electrical: 400 V / 50 Hz / 3‑phase; Rated power 17 kVA • Other: Machine connected and under power; very low spindle cutting hours for the year; good technical condition Additional equipment • Scraper-type chip conveyor • Discharge height: 950 mm • Tank capacity: 200 l • Coolant spray gun for swarf removal • Standard 4-color signal lamp • PROGRESSline & Planolight package Dcjdpfxsy T R I Eo Ailjn Technical Specification Taper Size SK 40

Condition: ready for operation (used), Year of construction: 2007, operating hours: 19,478 h, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, controller manufacturer: SIEMENS, controller model: 840D powerline, table load: 600 kg, spindle speed (max.): 10,000 rpm, number of axes: 3, This 3-axis DMG DECKEL MAHO DMC 635V was manufactured in 2007. It features a Siemens 840D control unit, a spindle speed of 10,000 rpm, and a tool changer with 20 positions. The table measures 790 x 560 mm with a maximum load of 600 kg. Rapid traverse rate is 30 m/min. Consider the opportunity to buy this DMG DECKEL MAHO DMC 635V vertical machining centre. Contact us for more information about this machine. • Operating hours: 19,478 h • Table size: 790 x 560 mm • Rapid traverse: 30 m/min • Tool changer: 20 positions • Condition: Both machines are in good working condition Dsdsyca Npspfx Ailscn Technical Specification Taper Size SK 40

Condition: ready for operation (used), Year of construction: 2006, A vertical CNC machining center DMG is offered. Travel X/Y/Z: 635mm/510mm/460mm, spindle-to-table distance: 120mm-580mm, table size X/Y: 790mm/560mm, table height: 720mm, max. table load: 600kg, feed rate X/Y/Z: 20m/min, rapid traverse X/Y/Z: 25m/min, max. feed force: 5kN, max. spindle speed: 8000rpm, max. spindle power: 18.9kW, max. torque: 100Nm, tool holder: SK40, tool magazine: 20 positions, max. tool diameter: 80mm, max. tool length: 250mm, max. tool weight: 6kg, tool change time: 1.6s, control: Heidenhain iTNC 530, total power-on hours: approx. 25232h, spindle running hours: approx. 8801h. Inspection possible by appointment. Dcedpfjzli U Eex Ailjn

Condition: used, operating hours: 3,000 h, CNC CONTROL Controller: Fanuc 32i X-axis travel mm: 635 Djdpfezxivvsx Ailocn Y-axis travel mm: 510 Z-axis travel mm: 460 Distance spindle nose - table surface mm: 120 - 580 Table dimensions mm: 790 x 560 Max. table load kg: 600 Max. spindle speed rpm: 8.000 Spindle taper / interface: SK 40 Tool holder / taper: SK 40 Tool magazine capacity: 20 Under power hours: 6.313 Spindle working hours: 2.999

Condition: used, Year of construction: 2006, operating hours: 39,500 h, functionality: fully functional, machine/vehicle number: 15425021604, travel distance X-axis: 1,035 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 510 mm, nominal power (apparent): 35 kVA, controller manufacturer: Heidenhain, controller model: iTNC 530, total height: 2,700 mm, total length: 2,800 mm, total width: 2,800 mm, table length: 1,200 mm, rotational speed (min.): 12,000 rpm, overall weight: 5,000 kg, spindle speed (max.): 12,000 rpm, operating hours of spindle: 16,075 h, number of slots in tool magazine: 30, input voltage: 400 V, type of input current: DC, Equipment: documentation/manual, DMG Deckel Maho DMC 1035 V vertical machining center, year of manufacture 2006 The machine has only processed plastics – in good condition! Year of manufacture: 2006 Machine number: 15425021604 Condition: Good Delivery terms: Free loading onto truck Location: 72178 Waldachtal !!!!!The machine must be collected on 21.10.2026! We can offer transport if required!!!!! Payment terms: Payment in advance – by bank transfer Internal number: 180-1 Can be inspected while powered on: Yes Technical data: - Operating hours (machine on): approx. 39,447 h (will increase slightly) - Spindle hours: 16,075 h (will increase slightly) - Tool holder: SK40 - Max. spindle speed: 12,000 rpm - Tool magazine: 30 positions - Table dimensions: 1200 x 560 mm - Control system: Heidenhain iTNC 530 - Travels X / Y / Z: 1035 / 560 / 510 mm - 400 V / 50 Hz / 35 kVA Scope of delivery: - Manuals and documentation - Wireless measuring probe Heidenhain TS640 - Handwheel - Programmable 4th axis Lehmann - Angle plate - Manual dividing head - Swivel vice Note: The vices on the machine table and the tool holders in the magazine are not included in the scope of delivery! Dimensions & weights: - Installation dimensions L x W x H approx.: 2800 x 2800 x 2700 mm - Weight approx.: 5000 kg If you have any questions or would like to arrange a viewing, please do not hesitate to contact us! Dcjdpjz I Dl Ijfx Ailen Additional information: ►If required, we can offer transport to the destination. ►The quoted price is net, plus VAT. ►The goods are sold with exclusion of all warranties. ►Technical data without guarantee. ►Subject to prior sale. ❗The goods are sold exclusively to businesses❗

Condition: ready for operation (used), Year of construction: 2008, operating hours: 17,641 h, travel distance X-axis: 635 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, controller manufacturer: SIEMENS, controller model: 840D powerline, table load: 600 kg, spindle speed (max.): 10,000 rpm, number of axes: 3, This 3-axis DMG DECKEL MAHO DMC 635V was manufactured in 2008. It features a Siemens 840D control unit, a spindle speed of 10,000 rpm, and a tool changer with 20 positions. The machine offers a table size of 790 x 560 mm and a maximum table load of 600 kg. If you are looking to get high-quality milling capabilities, consider the DMG DECKEL MAHO DMC 635V machine we have for sale. Contact us for more information. Djdeyca I Sepfx Ailscn • Operating hours: 17,641 h • Table size: 790 x 560 mm • Rapid traverse: 30 m/min • Tool changer: 20 positions • Condition: Both machines are in good working condition Technical Specification Taper Size SK 40