Used Cross Rung Milling Cutter for sale (15,073)

Condition: new, Year of construction: 2021, Exhibition machine Year of manufacture: 2021 (Tabletop machine) For stationary profile milling of head edges on soft-forming and post-forming workpieces. Also for flush milling on thick PVC edges for right-angled workpieces and multi-sided gluing. The processing of symmetrical and asymmetrical soft-forming and post-forming profiles is possible after manual profile depth adjustment. The motor feed is done manually by sensing the workpiece. Standard equipment: - Workpiece stop system - Pneumatic clamping cylinder - 1 milling motor, 0.8 kW, continuously adjustable up to 27,000 rpm, standardly equipped with a radius cutter, R=2. Sensing is done by a start-up ring on the workpiece. - Aggregate feed on precision round guides. Bwodpokwhapjfx Albjn Technical data: Workpiece thickness: max. 55 mm Workpiece width: min. 80 mm Workpiece length: min. 110 mm Soft-forming profile depth: max. 50 mm Edge thickness: max. 4 mm (depending on the edge material) Milling tool: Radius cutter R 2 Electrical connection: 230V / 50Hz / 1 phase Total connection: 0.8 kW Pneumatic connection: 6 bar Space requirement: approx. 740 x 460 x 500 mm Net weight: approx. 45 kg Availability: short-term Location: Solingen

Condition: used, CNC Gantry-Type Boring and Milling Machine ANAYAK Type HVM-3800-P Bed type milling machine, structure similar to a plate-type boring mill with fixed table Machine No.: M-20021203 Year of manufacture: 2002 ("Refurbished 2025") The machine will be completely workshop overhauled in 2025 and can then be inspected in storage at 37235 Hessisch Lichtenau. Travel distances: X: 3,200 mm, Y: 1,200 mm, Z: 1,500 mm Table size: 3,800 x 1,200 mm T-slots: 8 pieces, 22 mm, spacing 130 mm Table load: max. 25 tons (stationary table – virtually unlimited load capacity) Spindle taper: ISO 50 (DIN69871-A) (drawbar: DIN 69872-B) Spindle speed: 60 – 4,000 rpm, stepless Feed rate: up to 10,000 mm/min, stepless Rapid traverse X + Y: 20 m/min Rapid traverse Z: 10 m/min Spindle drive: 22 / 30 kW Electrical connection: 400 Volt, 50 Hz, 50 kVA - Automatic tool changer for 30 tools - Spindle drive with 2 speed ranges - With automatic tool changer and tool magazine - Orthogonal milling head with hydro-mechanical tool clamping - Orthogonal milling head fully automatic swiveling in two 45° planes – B+C axis - HEIDENHAIN iTNC 530 control, with electronic handwheel - Prepared for wireless touch probe (probe and receiver not included) - Additional HF-spindle, 18,000 rpm – for attachment - Free-standing control cabinet - Chip conveyor positioned between the gantry bed and the machine table - 32,078 operating hours recorded - Coolant system - Free-standing hydraulic unit Bwedpexcgtgjfx Albjn - Operating manual with circuit diagrams Installation area (L x W): approx. 1,000 x 700 cm Installation height: approx. 410 cm Weight (total): approx. 33 tons Good condition

Condition: used, Year of construction: 2007, turning diameter 42 / 140 mm turning length 170 mm control Mitsubishi Meldas turning speeds 80-8.000 U/min c-axis 0,001° turret (x-stations) 2x 12 (VDI 20) angetrieben turning speeds 45-4.500 U/min spindle 1 kW gripping station 42 mm turning speeds 60-6.000 U/min c-axis 0,001° number of controlled axis 8 collet unit 48 DIN 6343 . Number of working hours 10769 h chip conveyor ja/yes Bj. 2018 total power requirement 7,5 / 11 kW weight of the machine ca. 3,3 t dimensions of the machine ca. 2,4 x 1,6 x 2,2 m Bwodpfovyli Eex Alben CNC turning and milling machine CITIZEN BOLEY BE 42, year 2007 Simultaneous working with 7 axes on main and pick-up spindle very good condition, operating hours 21.999h (September 2024) Accessories: # Various tool holders (see picture) 5x axiale driven tool holder # collet chuck for collets type 173E # additional coolant cooler # Knoll chip conveyor, year of construction 2018 The Boley BE 42 is without barloader. Loading magazine interface has been fitted. Complete battery exchange on 22.12.2025

Condition: ready for operation (used), Year of construction: 1995, functionality: fully functional, travel distance X-axis: 2,500 mm, travel distance Y-axis: 1,750 mm, travel distance Z-axis: 1,000 mm, table length: 3,631 mm, table width: 1,200 mm, spindle speed (max.): 10,000 rpm, rapid traverse X-axis: 15 m/min, rapid traverse Y-axis: 15 m/min, rapid traverse Z-axis: 10 m/min, Equipment: rotational speed infinitely variable, TECHNICAL DETAILS Travel range, X-axis: 2,500 mm Travel range, Y-axis: 1,750 mm Travel range, Z-axis: 1,000 mm A-axis: 20 arc seconds C-axis: 30 arc seconds Rapid traverse rate, X-axis: 17 m/min Rapid traverse rate, Y-axis: 17 m/min Rapid traverse rate, Z-axis: 10 m/min Bwsdpfeza Hkujx Albon Rapid traverse rate, A-axis: 9 RPM Rapid traverse rate, C-axis: 80 RPM Feed rate, X and Y axes, continuously variable: up to 15,000 mm/min Feed rate, Z-axis: up to 4,000 mm/min Table plate: St 52-3 Table dimensions (L x W): 3,631 x 1,200 mm Milling head: FK 115 - SK40 Speed: 14–10,000 RPM Bearing: A9 LC8 CNC-controlled A-axis: Spindle swivel axis A-axis Swivel angle: ±120 degrees Torque: 450 Nm Speed: 8 RPM Resolution: 20 arc seconds Clamping: Hydraulic C-axis Rotation angle: 365 degrees Torque: 580 Nm Speed: max. 8 RPM Resolution: 30 arc seconds Clamping: Hydraulic MACHINE DETAILS Control system: Siemens NCU 840 W Series 2 CNC-controlled axes: 5 Voltage: 400 V 50 Hz Power: approx. 35 kW Weight: 18,500 kg EQUIPMENT Screw conveyor for chip removal Sliding door Side window Fixed coolant system, center of machine/cross beam at the rear Disc magazine with 16 slots, SK40 Heidenhain length measuring system The machine can be delivered for an additional charge.

Condition: excellent (used), Year of construction: 2006, Siemens Sinumerik 840 D, 5 axes controlled. Wheel diameter max 2000 mm 700 mm wheel width Bsdpfx Aloza Egbebewn Machine weight 35,000 kg Space requirements approx. 6.9 x 8.4 x 3.7 m

Condition: used, Year of construction: 2007, travel distance X-axis: 8,000 mm, travel distance Y-axis: 2,100 mm, travel distance Z-axis: 1,300 mm, spindle speed (max.): 6,000 rpm, spindle speed (min.): 36 rpm, table width: 5,500 mm, table length: 2,600 mm, total height: 4,900 mm, total width: 16,200 mm, total length: 9,000 mm, overall weight: 55,100 kg, CNC Floor Type Bed Milling Machine CNC Control Heidenhain iTNC 530 Controlled NC Table 1600 x 1600 mm Table dimensions 5500 x 2600 mm Movement X-axis 8000 mm Movement Y-axis 2100 mm Movement Z-axis 1300 mm Movement W-axis 1000 mm C-axis-swivel of milling head body 360 ° Bsdpfx Aljza Egnobewn A-axis-swivel of milling head 180° Spindle speed 36 - 6.000 R/min Spindle motor 42 / 30 kW Spindle taper DIN 69871-SK 50 Tools in tool magazine 48 If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: excellent (used), Year of construction: 2023, For sale is a used Hammer milling machine F3 with 4 milling speeds. The machine has been inspected and refurbished by our qualified personnel and is in very good condition. Technical data: - 4 milling speeds Bjdpfeza Dx Aex Albswn - height-adjustable + swiveling - Multi-adjustment system - incl. traversing mechanism - Motor power 4 kW / 5.4 hp - Year of manufacture 2023 The machine is located in A-5431 Kuchl and can be inspected at any time during our opening hours. Subject to prior sale! Related terms: milling machine, milling Reference: R-L0OE6

Condition: ready for operation (used), Year of construction: 2000, travel distance X-axis: 185 mm, travel distance Y-axis: 125 mm, travel distance Z-axis: 200 mm, total height: 850 mm, total width: 780 mm, overall weight: 250 kg, spindle speed (max.): 2,000 rpm, spindle motor power: 750 W, product length (max.): 800 mm, number of axes: 3, This 3-axis EMCO PC MILL 125 was manufactured in 2000. It features an X-axis travel of 185 mm, Y-axis travel of 125 mm, and Z-axis travel of 200 mm. The machine includes an automatic tool changer with 10 stations and a clamping area of 420 x 125 mm. If you are looking to get high-quality machining capabilities, consider the EMCO PC MILL 125 vertical machining centre we have for sale. Contact us for further details. • Tool changer: Automatic, 10 stations • Tool holder: SK 30 (DIN 2080 / DIN 69871) • Feed rate (X/Y/Z): 5–500 mm/min • Rapid traverse: 500 mm/min • Clamping area: 420 x 125 mm • Max. workpiece weight: 10 kg • Power supply: 230 V / 50 Hz Technical Specification Bjdpfoy E S Uqex Albswn Taper Size SK 30

Condition: ready for operation (used), Year of construction: 2016, travel distance X-axis: 200 mm, travel distance Y-axis: 150 mm, travel distance Z-axis: 250 mm, controller manufacturer: EMCO, total height: 1,100 mm, table load: 10 kg, overall weight: 400 kg, spindle speed (max.): 5,000 rpm, spindle motor power: 1,100 W, tool weight: 700 g, product length (max.): 1,135 mm, number of axes: 3, This 3s EMCO Concept Mill 105 was manufactured in 2016. It features a maximum spindle speed of 5000 rpm and a spindle motor power of 1.1 kW, providing efficient machining capabilities. The machine has a table size of 420 × 125 mm and a maximum table load of 10 kg. If you are looking to get high-quality milling capabilities, consider the EMCO Concept Mill 105 vertical machining centre we have for sale. Contact us for further details. • Distance spindle nose to table: 95–245 mm • Table size: 420 × 125 mm • T-slots: 2 × 11 × 90 mm • Max spindle torque: 4.2 Nm Bwjdpfx Ajyhcfkolbjn • Rapid traverse (X/Y/Z): 5 m/min • Feed rate: 0–5 m/min • Max feed force X/Y: 2000 N • Max feed force Z: 2400 N • Positioning accuracy (X/Y/Z): 0.005 mm • Repeatability: 0.005 mm • Tool stations: 10 • Max tool diameter: 55 mm • Max tool length: 50 mm • Tool change time (T1–T2–T3): 9.7 / 5 / 7.5 s • Connected load: 1.4 kW • Required air pressure: 6 bar

Condition: used, Year of construction: 1986, Deckel Maho 800E, manufactured in 1986: - Table surface area: 600 x 1100 mm - Travel in x-axis: 800 mm - Travel in y-axis: 450 mm - Travel in z-axis: 500 mm - Footprint: 3000 x 2500 x 2030 mm - Weight: approx. 4000 kg Bwjdsza Am Espfx Albon

Condition: used, Year of construction: 1992, Universal machine - Tool milling machine and lathe. Table 290 x 900 mm Table loading 80 kg Spindle revolutions ... 56 - 4500 rpm Lathe - working diameter 200 mm Lathe - working length 800 mm Machine weight 1700 kg Bwodpfxoy D Rdhs Albon

Condition: good (used), Year of construction: 2012, maximum machining diameter 380mm, maximum machining length 508mm, bar capacity 74mm, spindle speed 4,000rpm, spindle power 18.5Kw, milling speed 4,500rpm, milling power10Kw, Bwedpfszaz Uzex Albjn sub-spindle speed 6,000rpm, sub-spindle power 5.5Kw, Y axis -51/+51mm, 12 station turret, Mazatrol Matrix Nexus control, swarf conveyor, parts catcher , tool setter, 3 jaw chuck and Barfeed unit.

Condition: ready for operation (used), * Brand: Metso/Gfa * Type: M 175 * Feed opening : 1800 x 800 mm Bjdpfxozaz S Tj Albown * Incl.: hydraulic coupling * Excl.: E-motor

Condition: good (used), Year of construction: 2019, functionality: fully functional, Technical details turning diameter 820 mm turning length 6000 mm control Siemens Si 840 D sl total power requirement 155 kW weight of the machine ca. 65 t dimensions of the machine ca. 16350 x 3700 x 3850 m Additional information Purchase price EUR 1.550.000 Time recording from Feb. 2025 Operating hours = 38601 h Main spindle = 1958 h Milling spindle = 1760 h CNC control Si 840D sl Working area 6000 mm Working height 1390 mm Swing diameter over bed slide/bed 820 mm X-axis travel +850 -25 mm Z-axis travel 6820 mm C-axis, smallest increment +/-0.001° Workpiece spindle Spindle head according to DIN 55026 A15 Bjdpfxozaz Ego Albjwn Bathing through 160 mm Front diameter Bearing 240mm 2-stage gearbox, infinitely variable programmable Drive power at 100/60% duty cycle: 78/87kW Speed ranges: 2 Speed range I: 10-501 rpm Speed range II: 10-1750 rpm Torque I, 60% duty cycle: 8000 Nm Torque II, 60% duty cycle: 2308 Nm C-axis Holding torque with backlash-free spindle brake: 3000 Nm Speed: 0-50 rpm Maximum torque (100/60% duty cycle): 3700/4430 Nm Steady rest clamping range: 70-425 mm Turning, drilling, milling head Front diameter: Bearing 110mm Interface HSK100/C8 Tool magazine Storage locations: 2 magazines, Baluff chip system Max. tool diameter (each position/every 2nd position) 125/200mm Max. tool length 600mm Tool weight 25kg Tailstock Quick diameter 180mm Stroke 170mm Internal taper MK6 Axially force, manually adjustable 5-30 kN Quick tip height adjustment +/-0.15mm Other: Collision monitoring sensor ACS 3-ARTIS Chip conveyor system Coolant system 980l tank and more

Condition: excellent (used), Year of construction: 1998, machine/vehicle number: 2036, total height: 1,900 mm, total length: 1,400 mm, total width: 900 mm, overall weight: 600 kg, rotational speed (min.): 2,000 rpm, rotational speed (max.): 10,000 rpm, table length: 500 mm, table width: 200 mm, power: 2 kW (2.72 HP), Equipment: rotational speed infinitely variable, TECHNICAL DETAILS: - Machine number: 2036 - Operating voltage: 400 V - Frequency: 50–60 Hz - Rated current: 10 A - Connection: 2 kW - Grinding wheel diameter: max. 125 mm - Speed: 2,000–10,000 rpm - Table dimensions: 500 x 200 mm WORKING AREA & CAPACITY: - Indexing head center height: 170 mm - Tailstock center height: 120 mm (with intermediate support: 170 mm) - Workpiece diameter between centers: 338 mm - Workpiece diameter, overhung: 600 mm - Distance between centers: 950 mm Bjdpfewxrf Nex Albewn - Internal taper, indexing spindle: Morse 4 / Unified 40 - T-slots, machine base: 12 mm - T-slots, additional elements: 8 mm TRAVEL DISTANCES & ADJUSTMENTS: - Sharpening stroke: 190 mm - Cross travel, tool holder: 100 mm - Vertical adjustment, grinding head: 325 mm - Axial adjustment, grinding spindle: 5 mm - Tool holder: 230 mm - Grinding head mounting: 800 mm - Indexing device on tool slide: 330 mm ROTATION / SWIVEL RANGES: - Grinding head mounting: 360° - Grinding heads: 360° - Tool holder: 360° - Universal device (horizontal/vertical): 360° OTHER FEATURES: - Spiral grinding/slotting lead: 0.80 mm - Maximum spiral sharpening length: 190 mm DRIVE & SPEEDS: - Three-phase motor: 0.7 / 0.85 kW - DC motor: 1.3 kW - Spindle speeds: 4,000 / 8,000 rpm (pole switching) - Stepless DC: 2,000–10,000 rpm - Grinding wheel diameter: max. 125 mm - Cutter wheel diameter: max. 200 mm ACCESSORIES: - Includes two-axis digital readout - Extensive machine accessories included

Condition: good (used), Year of construction: 1980, machine/vehicle number: 4038, travel distance X-axis: 290 mm, travel distance Y-axis: 150 mm, travel distance Z-axis: 330 mm, mount diameter: 40 mm, table length: 600 mm, table width: 210 mm, rotational speed (max.): 2,000 rpm, rotational speed (min.): 40 rpm, overall weight: 700 kg, CONDITION & NOTES: - This is an active, path-controlled tool milling machine Bodewxpxmopfx Albewn

Condition: used, Year of construction: 2002, travel -x axis 3.000 mm travel -y axis 560 mm travel -z axis 720 mm control Siemens - 840D number of spindle speeds 18.000 U/min numbers of positions in the tool changer 100 tool taper HSK 63 Milling machining centers - vertical | DMG - DMF 300 Linear The machine has exclusively processed aluminum and is in a well-maintained condition. Bwjdpfxsy A Tb Ho Albjn - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: DMF300Linear | DMF300 | DMF-300 Linear | DMF-300Linear

Condition: used, Year of construction: 2002, travel -x axis 3.000 mm travel -y axis 560 mm travel -z axis 720 mm control Siemens - 840D number of spindle speeds 18.000 U/min numbers of positions in the tool changer 100 tool taper HSK 63 Bedpfx Asy A Tbtolbjwn Milling machining centers - vertical | DMG - DMF 300 Linear The machine has exclusively processed aluminum and is in a well-maintained condition. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: DMF300Linear | DMF300 | DMF-300 Linear | DMF-300Linear

Condition: excellent (used), 1 used, very well-maintained universal milling head, System "HURON", with hydraulic tool clamping, internal coolant supply, and electrical tool-released signal. Manufacturer: SEMPUCO, Origin Germany Model: KFU 2/45-SK 50 Technical data: Spindle mount, DIN 2079: ISO 50, for tools according to DIN 69871 + 69872, Type A Overhang: 377 mm Max. speed range: 3500 rpm 3750 rpm 50% duty cycle/hour 4000 rpm 30% duty cycle/hour Max. drive power: 15 / 22 kW Operating pressure, tool release: 100 + 5 bar Pressure through spindle, coolant: max. 80 bar Pressure through spindle, air: max. 10 bar Dimensions L x W x H: 450 x 305 x 360 mm Weight: approx. 180 kg Accessories / Special features: • 2 manual swivel table systems "HURON" • Hydraulic tool clamping • Electrical tool-released signal • Internal coolant supply (IKZ) - coolant through the spindle • Compressed air through the spindle for blowing out the tool holder • For retrofitting to conventional, NC, or CNC milling machines and bed-type milling machines or drilling machines (e.g., AUERBACH, UNION, MTE, LAGUN, CORREA, ZAYER, CME, AYCE, SACEM, JUARISTI, ARSENAL, ...) Bwjdpfxszavrbo Alben Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 DE - 44143 Dortmund-Wambel / Germany

Condition: used, Year of construction: 1996, total height: 2,150 mm, total length: 1,420 mm, total width: 2,010 mm, overall weight: 3,100 kg, grinding spindle speed: 6,000 rpm, travel distance X-axis: 400 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 580 mm, CNC Universal 5-Axis Tool-and Cutter Grinder CNC Control HMC 400 CNC X-axis movement 400 mm Bodszavqwopfx Albjwn Y-axis movement 250 mm Z-axis movement 580 mm C-axis (table rotation) ± 200° Max diameter grinding wheel Ø 200 mm Spindle speed (grinding) 3000 / 6000 R/Min If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: excellent (used), functionality: fully functional, Grecon Dimter Opticut S50 Optimizer Maximum material input length: 5000 mm Wood width min/max: 20-300 mm Wood thickness min/max: 10-100 mm Bsdpfozaug Rsx Albewn Capability to cut bundles Defect cutting CE certified

Condition: excellent (used), Year of construction: 2013, operating hours: 5,785 h, Okuma Genos L300e-MY turning center Year: 2013 Technical details: Control OSP P300L-R Turning diameter 340 mm Turning length 1020 mm Spindle bore diameter 65 mm Spindle Speed 25 - 3000 1/min Spindle motor 15/11 kW Movement X-axis 235 mm Movement Y-axis +50 / -50 mm Movement Z-axis 1074 mm Minimum indexing C-Axis main Spindle 0,001 ° Number of tools on turret 12 Spindle speed driven tools 45 - 4500 1/min Number of driven tools 12 position Tool Taper VDI40 Spindle motor driven tools 7/3,3 kW Bar feeder SPACESAVER 2210 ( 1500 mm bar lenght, up to 67 mm diameter ) Bwsdpfx Alezat Tvebsn Machine dimensions 4370x2540x2490 mm Weight 7500 kg Accessories/options: - SPACESAVER 2210 barfeeder - swarf conveyor - parts cather - Renishaw tool measuring arm - Driven tool holders - Static tool holders - Hydraulic chuck - Jaws for chuck - Documentations - Dust extractor

Condition: used, Year of construction: 2023, controller manufacturer: Mazak, controller model: Mazatrol SmoothAi, _____ Description: Year of manuf. : 2023 Control : Mazak Mazatrol SmoothAi Turning diam. : 600 mm Turning length : 850 mm In General: Year of manufacture:2023 Control system:Mazak Mazatrol SmoothAi Max. machining diameter:600 mm Bsdpfxeyrvzms Albswn Max. machining length:850 mm Main spindle: Technology:Motor spindle Speed:6,000 rpm Power:11 kW Max. torque:184 Nm Bar capacity:51 mm C-axis:0.0001° Chuck:3-jaw chuck Clamping cylinder:Hollow clamping cylinder Sub spindle: Technology:Motor spindle Speed:6,000 rpm Power:11 kW Max. torque:184 Nm Bar capacity:51 mm C-axis:0.0001° Tailstock function:Yes Tool carrier (X/Y/ZB): Technology:Travelling column with milling spindle X-axis:535 mm Y-axis:210 mm Z-axis:900 mm B-axis:-30° / +210° Milling spindle speed:20,000 rpm Power:24 kW Tool taper: HSK 63 Tool magazin: Technology:Shelf magazine Number of stations:250 Tool changer:Double gripper Equipment: Chip disposal:Chip conveyor Coolant supply:Internal coolant system, 15 bar Workpiece measurement:Renishaw RMP 60 Tool measurement:Renishaw tool setter Bar loader:IRCO ILS-MUK 7012 Finished part removal:Parts catcher Software option I:5-axis simultaneous machining Software option II:Synchronous thread cutting Software option III:Cylinder interpolation Software option IV:Tool radius compensation Software option V:Tool length compensation Emulsion mist separator:Mechanical Setup mode:Electronical handwheel

Condition: used, Year of construction: 2000, travel distance X-axis: 9,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 1,500 mm, table width: 1,200 mm, table load: 5,000 kg, table length: 9,500 mm, Bed Milling Machine 5-axis Table size 9500 x 1200 mm. Movement x-Axis 9000 mm. y-Axis 1500 mm. Bwjdpfxezauvfe Albjn z-Axis 1500 mm. Max table load 5000 kg/mtr Swiveling of vertical milling head 1°x1º CNC Control Heidenhain TNC 430 CB If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: used, Year of construction: 2003, operating hours: 4,428 h, Price: On request - Year: 2003 - Documentation available: Yes - CE marking present: Yes Bjdpfxjwnidhs Albown - CE certificate present: No - Operating hours: 4428 - Drive system: CNC - Power [kW]: 37.0 - Operating pressure [bar]: 4137 - X-axis travel [mm]: 6500 - Y-axis travel [mm]: 3300 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