Used Dmu 340 Fd for sale (173)

Condition: used, Year of construction: 2002, travel distance X-axis: 3,400 mm, travel distance Y-axis: 2,800 mm, travel distance Z-axis: 1,600 mm, spindle speed (min.): 10,000 rpm, Universal machining center Machine type: DMG DMC 340 U Control: Heidenhain iTNC 530 Year of manufacture: 2002 TECHNICAL DATA: Travel paths: X-axis: 2,800 mm Nwedpfx Aox Uxc Tjkcsf Y-axis: 3,400 mm Z-axis: 1,600 mm B-axis C-axis Rapid traverse: (X/Y/Z): 60 / 30 / 40 m/min. Swivel head Speed range: 10,000 rpm. Drive power: 44/32 kW Torque: 288 Nm Tool holder: HSK 100 Tool positions: 120 Tool diameter: 130 / 250 mm Tool length: 650 mm Tool weight: 30 kg NC rotary table: 2500 x 2000 Pallet system Number of pallets: 2 Pallet size: 2,500 x 2,000 mm Top table: D. 2,800 Features: Internal cooling (IKZ): bar Coolant tank: l Chip conveyor Electronic handwheel Chip flushing gun

Condition: ready for operation (used), DMU 70 Year XYZ 710x520x520 6000 kg Dimensions 3300x4500x5500 mm Table 500 mm Motor 25 kW Spindle 12,000 RPM Feed XYZ 10 m/min Rapid traverse XYZ 30 m/min Still in production. Also for sale: DMU 50, Mori Seiki Duraturn 2550, CTX 320. Njdpfx Aksyyqwtjcowf

Condition: good (used), functionality: fully functional, travel distance X-axis: 500 mm, travel distance Y-axis: 380 mm, travel distance Z-axis: 380 mm, total height: 2,380 mm, total length: 1,450 mm, total width: 17,600 mm, overall weight: 3,500 kg, table length: 800 mm, table width: 480 mm, spindle speed (max.): 8,000 rpm, spindle speed (min.): 20 rpm, A DMU brand and type 50 V milling center is for sale A new spindle was recently installed. The machine is in very good condition and fully operational, machining in the 100el range is possible without any problems Technical data: Brand GRUNDIG Model MillPlus Spindle speed range: 20 - 8000 Number of axes: 3 X-axis travel: 500 mm Y-axis travel: 380 mm Z-axis travel: 380 mm Outer length of table: 800 mm Outer width of table: 480 mm Spindle holder: SK40 Dimensions L*W*H: 2450*1760+2380 mm Weight: 3500 kg On request, loading and transport (Europe-wide) can be organized for an extra charge. Prices plus VAT Viewing possible by appointment. Contact us, our team will be happy to help you. Trade-in or exchange possible! Machines purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality but inexpensive metalworking machine for your production? Or do you want to sell yours? Nwjdpfxsrdf Ebo Akcof For further information or contact options, please visit our website

Condition: excellent (used), Year of construction: 2021, DMU LASER TECH Fiber Laser Welder Like new - Year 2021 CE. 1 Kw MT 1000P Njdpfx Ajv Amxmokcewf Complete with cable and torch.

Condition: excellent (used), Year of construction: 2005, functionality: fully functional, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Deckel Maho Machining Center 5-Axis Simultaneous Machining Nwsdjy Hqviopfx Akcof Model DMU 50 Evo Linear Year 2005 CNC Heidenhain iTNC 530

Condition: like new (used), Year of construction: 2010, operating hours: 32,498 h, travel distance X-axis: 500 mm, travel distance Y-axis: 450 mm, travel distance Z-axis: 400 mm, nominal power (apparent): 35 kVA, controller manufacturer: Heidenhain iTNC 530, workpiece width (max.): 500 mm, workpiece diameter (max.): 630 mm, workpiece weight (max.): 200 kg, total height: 2,590 mm, total length: 4,780 mm, total width: 4,410 mm, overall weight: 5,900 kg, spindle speed (min.): 18,000 rpm, spindle motor power: 35,000 W, Year of construction: 2010 CNC controller: Heidenhain iTNC 530 Axes X-axis travel mm: 500 Y-axis travel mm: 450 Z-axis travel mm: 400 C-axis degrees: 360º (0,001) B-axis degrees: 0º/108º (0,001) Rapid traverse m/min: 80/50/50 Milling/turning table nc: Table dimensions mm: Ø390 Maximum workpiece size (D x H) mm: Ø630x500 Max. workpiece weight kg: 200 Spindle Spindle speed rpm: 18000 Spindle drive power kW: 35/25 (40%ED/cont) Spindle torque Nm: 130/87 Tool system Tool holder: HSK-A 63 Tool magazine slots: 30 With free neighboring places mm: 130 With occupied neighboring places mm: 80 Max. Tool Length mm: 300 Chip-to-chip time s: 5 Equipment Chip conveyor Infrared probe Rinsing gun blowing air through spindle center selectable via M-function Signal lamp Laser tool measurement for measuring tool length and diameter Programmable coolant nozzles Heat compensator Direct measuring system XYZ Electrical cabinet active cooling unit Oil skimmer RENISHAW Measuring probe Automatic door Machine running times Under power: 54257 Spindle Working: 32498 Rated power kVA: 48 Basic machine dimensions / weight Length mm: 4780 Width mm: 4410 Nsdoyi Dniopfx Akcewf Height mm: 2590 Weight kg: 5900

Condition: ready for operation (used), Year of construction: 2001, travel distance X-axis: 630 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 560 mm, controller manufacturer: HEIDENHAIN, spindle speed (max.): 12,000 rpm, number of axes: 5, This 5-axis DECKEL MAHO DMU 60T was manufactured in 2001. It features an X-axis travel of 630 mm, Y-axis travel of 560 mm, and Z-axis travel of 560 mm. The machine includes a table size of 1000 x 600 mm and a tool magazine with 2x12 positions. If you are looking to get high-quality machining capabilities, consider the DECKEL MAHO DMU 60T vertical machining centre we have for sale. Contact us for further details. • Table size: 1000 x 600 mm • Tool magazine: 2x12 positions • Under power and well maintained machine. Nwjdpfxey Hktbj Akcsf Technical Specification Taper Size SK 40

Condition: good (used), Year of construction: 2011, operating hours: 54,900 h, functionality: fully functional, travel distance X-axis: 7,350 mm, travel distance Y-axis: 650 mm, travel distance Z-axis: 560 mm, controller manufacturer: Heidenhain, controller model: iTNC 530 HSCI, table load: 600 kg, rotational speed (max.): 18,000 rpm, Equipment: chip conveyor, Motor spindle SK 40 Tool holder for HSK-A63 Infrared measuring probe ICS 40 bar Electronic handwheel iTNC 530 Nedpfxjy Hh T Se Akcswf

Condition: used, Year of construction: 1998, functionality: fully functional, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Deckel Maho Machining Centre 5-Axis Simultaneous Type DMU 80 P Year 1998 Heidenhain CNC Njdpfx Akoy D Nfdecjwf With Tooling

Condition: good (used), functionality: fully functional, travel distance X-axis: 500 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 400 mm, Heidenhain TNC 310 cnc control C and B-axis manual with display swivel rotary table electronical hand wheel coolant device Technische Daten: Längsweg (X-Achse) / X-travel longitudinal 500 mm Querweg (Y-Achse) / Y-travel cross 400 mm Senkrechtweg (Z-Achse) / Z-travel vertical 400 mm Nwjdpfx Akjy E Iztscef Werkzeugaufnahme / spindle taper SK40 Drehzahlbereich / spindle speed range 20-4500 UpM Vorschub / feed 5000 mm/min. Gewicht ca. / weight ca. 2800 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: used, Year of construction: 2010, x-travel 500 mm y-travel 450 mm z-travel 400 mm control iTNC 530 Heidenhain turning speed range - main spindle 20 - 10.000 min/-1 power capacity - main spindel 13 / 9 kW max. Torque 83 / 57 Nm tool taper SK 40 DIN 69871 table surface area 700 x 500 mm max. table load 500 kg T-slots 7x 14 x 63 mm number of toolpositions 60 pos. max. tool weight 6 kg max. tool diameter 80 mm max. tool-dia with free toolbox 130 mm max. tool length 300 mm change-time tool to tool 1,6 sec change-time chip to chip 8,0 sec rapid traverse 24 m/min Feed force ( X / Y / Z ) 4,5 kN feed speeds 1 - 24.000 mm/min total power requirement 26 kVA weight of the machine ca. 4,5 t dimensions of the machine ca. 4,5 x 3,5 x 2,3 m CNC - Milling Machine Vertical DECKEL MAHO - DMU 50 - 3 Axis - only ca. 8.097h Spindle-Hrs. - Backup package for power outages - DXF import Nwsdpfx Asy E Tv Aekcof - incl. workbench - incl. tool cabinet - incl. cabinet for SK 40 tool holders - incl. approx. 63 SK 40 tool holders

Condition: ready for operation (used), Year of construction: 2004, operating hours: 40,000 h, travel distance X-axis: 880 mm, travel distance Y-axis: 630 mm, travel distance Z-axis: 630 mm, controller manufacturer: HEIDENHAIN, controller model: Mill Plus, spindle speed (max.): 18,000 rpm, number of axes: 3, This 3-axis DMG DECKEL MAHO DMU 80T was manufactured in 2004. It features a high-speed spindle at 18,000 RPM, internal coolant supply with 40 Bar pressure, and a 32-station tool changer. The machine includes SK 40 tool holders and a Rotoclear viewing window. Ideal for demanding machining tasks, consider the opportunity to buy this DMG DECKEL MAHO DMU 80T vertical machining centre. Contact us for more information about this machine. • Spindle cooling: Active cooling • Cooling: Air or coolant • Internal coolant supply: 40 bar (through-spindle) • Tool changer: 32 stations • Operating mode: Mode 4 (working with open door) Additional equipment Nsdpsx D Iunsfx Akcswf • Belt filter system: Interlit SPD 3-600-HD • Mist collector • Rotoclear viewing window • Control cabinet cooling unit

Condition: good (used), Year of construction: 2000, operating hours: 74,800 h, travel distance X-axis: 800 mm, travel distance Y-axis: 700 mm, travel distance Z-axis: 600 mm, controller manufacturer: Heidenhain, controller model: iTNC 430, spindle speed (max.): 18,000 rpm, operating hours of spindle: 28,000 h, coolant supply: 40 bar, Equipment: chip conveyor, IKZ (internal coolant supply) NC rotary table (C-axis) Nwedpfx Akjy Ep Rtecjf NC swivel head Tool holder: HSK 63 FD function Pallet changer Measuring systems: infrared probe for workpiece measurement Additional magazine with 120 spaces Spindle has already been replaced

Condition: ready for operation (used), Year of construction: 2005, operating hours: 42,768 h, controller manufacturer: HEIDENHAIN, spindle speed (max.): 18,000 rpm, number of axes: 5, This 5-axis DMG DECKEL MAHO DMU 50 eVo linear was manufactured in 2005. It features a HEIDENHAIN control, a 40bar IKZ, a 60-tool magazine, and a spindle speed of 18k rpm. The machine includes automation capabilities fully adjustable for different product formats and positioning. If you are looking to get high-quality milling capabilities, consider the DMG DECKEL MAHO DMU 50 eVo linear machine we have for sale. Contact us for more information. • Tool magazine: 60 tools • Through-spindle coolant (IKZ): 40 bar Nodpfex Rd Hpsx Akcewf • Spindle overhauled in 2024 • B and C axes overhauled in 2024 Additional equipment • Automation (product handling), freely adjustable for product format and positioning • Paper belt filter • Blum laser tool break detection • Extraction system excluded Technical Specification Taper Size SK 40

Condition: reconditioned (used), Year of construction: 2005, functionality: fully functional, CNC Universal Milling & Drilling Machine DECKEL MAHO DMU 80 monoBlock With Heidenhain iTNC 530 path control Year of manufacture: 2005 Travel distances: X 980 Y 630 Z 630 Speed range: 0 – 18,000 rpm stepless (HSK 63) With the following accessories: Rigid angle table, 1250 mm x 700 mm clamping surface 3D measuring probe Heidenhain Tool measurement in the working area via BLUM Laser Vertical tool changer with 32 magazine slots (HSK 63) Full protection enclosure with sliding doors and internal lighting Electronic handwheel Nodpjy A Sf Rjfx Akcjwf Operating modes 3 + 4 Chip conveyor Coolant system 3 height-adjustable machine mounts Spindle oil cooler Control cabinet cooling unit (Rittal) Operating manuals

Condition: used, Year of construction: 2011, x-travel 630 mm Nwjdpeyz Dcfefx Akcjf y-travel 560 mm z-travel 560 mm control iTNC 530 Heidenhain turning speed range - main spindle max. 12.000 min/-1 power capacity - main spindel 10 / 15 kW max. Torque 130 / 87 Nm tool taper HSK-A 63 swivellable NC: ° table surface area 1.000 x 600 mm table diameter Ø 600 mm T-slots 1x 14 x H7, 8x 14 H12 max. table load 500 kg rotatable C: 360 ° number of toolpositions 2x12 (24) 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 total power requirement 45 kVA weight of the machine ca. 6,8 t dimensions of the machine ca. 4,5 x 4,5 x 2,5 m CNC - MachiningCenter Universal DECKEL MAHO - DMU 60 monoBLOCK - Swivel-Millinghead - Package for tropical climate

Condition: ready for operation (used), Year of construction: 2005, travel distance X-axis: 630 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 560 mm, total height: 2,500 mm, table load: 400 kg, spindle speed (max.): 18,000 rpm, number of axes: 4, This 4-axis DECKEL MAHO DMU-60T was manufactured in 2005. It features a robust vertical machining centre with X, Y, Z travels of 630 mm, 560 mm, and 560 mm respectively. Equipped with a high-speed spindle up to 18,000 rpm and a HSK-63A taper, it ensures precision and efficiency. The machine includes a Heidenhain MillPlus CNC control and a 20-tool magazine. Consider the opportunity to buy this DECKEL MAHO DMU-60T vertical machining centre. Contact us for further details regarding this machine. • Table size (L x W): 1000 x 600 mm • CNC control: Heidenhain MillPlus • Tool magazine capacity: 20 tools • Through-spindle coolant: Yes Additional equipment • Chip conveyor Nedpsx D I Ibsfx Akcowf Dimensions Machine Depth 3000 mm

Condition: used, Year of construction: 2008, operating hours: 6,848 h, functionality: fully functional, machine/vehicle number: 11580008023, travel distance X-axis: 730 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 560 mm, rapid traverse X-axis: 30 m/min, rapid traverse Y-axis: 30 m/min, rapid traverse Z-axis: 30 m/min, feed rate X-axis: 30 m/min, feed rate Y-axis: 30 m/min, feed rate Z-axis: 30 m/min, controller manufacturer: Heidenhain, controller model: Heidenhain iTNC 530, total height: 2,260 mm, total length: 22,950 mm, total width: 2,100 mm, table width: 600 mm, table length: 1,000 mm, table load: 200 kg, rotary table diameter: 600 mm, rotational speed (min.): 1 rpm, rotational speed (max.): 3,000 rpm, overall weight: 6,000 kg, spindle speed (min.): 1 rpm, spindle speed (max.): 12,000 rpm, spindle motor power: 15,000 W, number of spindles: 1, number of slots in tool magazine: 24, tool length: 315 mm, tool diameter: 130 mm, tool weight: 8,000 g, input voltage: 400 V, type of input current: three-phase, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, The Deckel Maho DMU 60 is a universal 5-axis CNC machining center designed for precise milling and complete machining of complex components. This machine is part of the renowned DMU series by DMG Mori (formerly Deckel Maho) and is widely used in toolmaking, mechanical engineering, mold making, as well as the aerospace industry. Thanks to the swiveling milling head (B-axis) and NC rotary table (C-axis), workpieces can be machined on five axes, enabling the production of complex geometries in a single setup. Previous application conditions: General machine/tool parts in steel, aluminum, cast iron, etc. Nodpfx Asyt Ibnjkcjwf Heidenhain iTNC 530 control HSK-A 63 tool holder The stated price is exclusive of dismantling, packaging, and shipping. Sale is from location, subject to prior sale. The machines are sold in used condition; any warranty and guarantee are excluded.

Condition: ready for operation (used), Year of construction: 2001, Immediately available ex-site: Nsdpfxey E Ncxs Akcjwf 5-Axis Machining Centre Deckel Maho Model: DMU 50 M Year of manufacture: 2001 Control system: Heidenhain TNC 124 5 axes (3 + 2) Manual rotary axes with B and C swivel rotary table B and C axes are displayed on the control Table size: 700 x 500 mm Travel paths X/Y/Z: 500 / 400 / 400 mm Table load capacity: 200 kg Spindle taper: SK 40 Spindle speeds: 20 – 4,500 rpm Drive power: 9 / 13 kW C-axis rotation range: 360 degrees Swivel range: plus 95 / minus 10 degrees Feed rate up to 5,000 mm/min Spindle speeds: 20 – 4,500 rpm Weight: 3 tonnes Coolant system Price: EUR 8,500.— net, ex-site, plus VAT.

Condition: ready for operation (used), Year of construction: 2003, Immediately available ex works: 5-axis (3 plus 2) machining centre Deckel Maho Type DMU 35 M Year of manufacture: 2003 Siemens 810 D control Electronic handwheel Universal tilting/rotary table 400 x 290 mm Travel X/Y/Z: 350/240/340 mm Spindle taper SK 40 Spindle speeds: 20 – 6300 rpm Drive: 6.3/10 kW Table load: 100 kg Rotation range: 360 degrees Nedpjy E Ncfsfx Akcewf Swivel range: plus 105 / minus 15 degrees Distance spindle nose – table: 145/485 mm Feed rates up to 3000 mm/min Weight: 1750 kg Price: Euro 4,500.—plus VAT ex location

Condition: ready for operation (used), Year of construction: 2000, Immediately available from Swiss toolmaking: 5-axis milling machine Deckel Maho Type DMU 35 M Year of manufacture: 2000 CNC control: Heidenhain TNC 310 M Electronic handwheel Table 400 x 280 mm Table load up to 100 kg Travel X/Y/Z: 350/240/340 mm Infinitely variable spindle speeds: 0 – 5,000 rpm Taper SK 40 Njdpfjy E I Tvjx Akcjwf Rapid traverse 5 m/min Servo motors for X/Y/Z axes Swivel range 360 degrees Table clamping plus 105/minus 150 degrees Weight 2 t Accessories, hydraulic vise Price: EUR 5,000.—plus VAT, ex works

Condition: ready for operation (used), Year of construction: 2003, operating hours: 62,469 h, travel distance X-axis: 750 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 520 mm, controller manufacturer: HEIDENHAIN, controller model: iTNC 530, number of axes: 5, This 5-axis DECKEL MAHO DMU 70 eVo was manufactured in 2003. It features a Heidenhain iTNC 530 control, HSK 63 tool interface, and a spindle speed of 18,000 rpm. The machine offers a tool magazine with 32 positions and a robust coolant system with a 280-liter capacity. If you are looking to get high-quality milling capabilities, consider the DECKEL MAHO DMU 70 eVo machine we have for sale. Contact us for more information about this machine. • Working hours (as of 04.07.2023): • Operating hours: 62,469 h • Spindle hours: 17,307 h • Rotary/Swivel axes: • C-axis indexing: 360° • B-axis indexing: 0–180° Nodpeydlacefx Akcowf • Workpiece: • Max. workpiece diameter: 700 mm • Tool system: • Tool magazine: 32 positions • Coolant system: • Coolant tank capacity: 280 liters • Coolant type: Alusol SL 51 XBB • Cooling method: External coolant supply • Rapid traverse (X/Y/Z): 50 m/min Additional equipment • Touch probe: TS 641

Condition: used, x-travel 500 mm y-travel 400 mm z-travel 400 mm Q U O T A T I O N We are pleased to offer you ex our stock, subject to prior sale, and error in technical data : DECKEL MAHO CNC Universal Milling Machine model DMU 50 M year 1998 Working range: Longitudinal stroke X Axis 500 mm Vertical stroke Z Axis 400 mm Cross stroke Y Axis 400 mm C-axis – table turning, manual 360 ° B-axis – table swivelling, manual ° Table area Ø 700 x 500 mm Inclination range of table (manually) + / - ° Rotation of table (manually) 360 ° Max. Table load approx. 200 kg Maximum distance table – spindle nose 550 mm horizontal distance machine – spindle nose 2 – 6 mm Tool holder Taper ISO 40 Spindle speeds 20 – 4,500 rpm Nwjdpfev Td Elsx Akcof Feed rate max. 5.000 mm/min AC main drive, 0% / 40% power-on time approx. 9 / 13 kW Total electrical load, approx. 15 kW - 400 V - 50 Hz Weight, approx. 3,000 kg Accessories / Special Features • 3 Axis HEIDENHAIN Point to Point Control Model TNC 124 with Monitor, direct programming and input of data and electronic handwheels. • All 3 axis are operated by the milling head, the table is stationary so also out of proportion workpieces can be machined. • Rotary Table can be manually rotated 360° and manually inclined + / -° (each with clamping). The digital read-out of the angles is integrated in the CNC control • Simple coolant unit with pump and tank, built-on switch cabinet (SIEMENS parts) • Pneumatic tool claomping, Some tool holders available, manuals, CE-Certificate, etc. Condition : very good condition ! Ideal for training center or single parts machining ! Please click here to view a video of the machine running : ! Delivery : immediately available, FCA Metzingen Payment : 0 % Net, after conclusion of contract, before loading We always have a large selection of milling machines - CNC or conventional - available. Please let us know your requirements.

Year of construction: 2001, operating hours: 26,266 h, condition: used, Empty weight: 7.000 kg Dimensions (LxBxH): 350 x 220 x 240 cm Price: On request Milling machine, VMC Model: CNC Manufacturer: DMG / Deckel MAHO Type: DMU60T Year of manufacturing: 2001 Control: Heidenhain Working-hours: 26266 Travel: 630x560x560mm Spindle-speed: 10.000 rpm Table-dimensions: 1000x600mm Nsdpsywt Nyofx Akcewf Spindle-take: ISO40 Max. Workpiece-weight: 400kg Incl. Filter Interlit SK200-760 Incl. Automatic toolholder Incl. Documents Incl. Video available Machine-weight: 6700kg Machine-dimensions: 3500x2400x2200mm - Year: 2001 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Operating hours: 26266 - Drive system: CNC - Control system brand: Heidenhain - Number of axes [pcs]: 3 - X-axis travel [mm]: 630 - Y-axis travel [mm]: 560 - Z-axis travel [mm]: 560 - Table length [mm]: 1000 - Table width [mm]: 600 - Tool holder: SK40 - Max. spindle speed [rpm]: 10000 - Options: External cooling, Tool magazine - Transport dimensions: 3500mm x 2200mm x 2400mm (l x w x h) - Transport weight [kg]: 7000kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Year of construction: 1997, condition: used, Price: On request - Year: 1997 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Drive system: CNC - Control system brand: Heidenhain - Number of axes [pcs]: 5 - X-axis travel [mm]: 1200 - Y-axis travel [mm]: 880 - Z-axis travel [mm]: 800 - Table length [mm]: 5000 - Tool holder: SK40 Nwjdpfx Aowh Shvokcsf - Max. spindle speed [rpm]: 18000 - Options: Digital readout - └ Type of digital readout: Heidenhain Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum