Used Cnc Grinder for sale (9,804)

Condition: used, Year of construction: 2005, operating hours: 40,300 h, machine/vehicle number: IntNr231576, A used AXA VSC-1M/2E CNC vertical machining center, manufactured in 2006 and equipped with a HEIDENHAIN iTNC 530B CNC control, is for sale. Technical data Design: Moving column machine Number of axes: 3 axes Machining operations: Milling, drilling, threading Operating mode: CNC operation Swivel machining Klodozatgpepfx Ah Eou Tool holder: SK 40 Tool magazine Chip conveyor Coolant system X-axis travel: 1,760 to 9,000 mm Y-axis travel: 550 mm Z-axis travel: 600 mm Distance from table to spindle nose: 180 to 780 mm Table surface: X-travel + 400 mm x Y-travel, 3 T-slots 14 H9, T-slot spacing 160 mm Table load: 800 kg/m² Rapid traverse: 30 m/min The standard tool changer has 22 tool positions; optional extensions up to 216 tool positions are possible. Tool change time: approx. 4 seconds. The machine can be inspected by appointment. Subject to changes and errors in the technical data and specifications, as well as prior sale.

Condition: used, Year of construction: 2020, operating hours: 6,875 h, machine/vehicle number: IntNr231185, EMAG WEISS W11 CNC SL650 – Universal cylindrical grinding machine – Year of manufacture: 2020 A used EMAG WEISS W11 CNC SL650 is available for sale – a high-performance universal cylindrical grinding machine with CNC control. The machine is ideally suited for demanding grinding tasks on individual parts, prototypes, and small to medium production runs. Machine specifications Manufacturer: EMAG WEISS Type: W11-CNC SL650 Year of manufacture: 2020 Operating hours: approx. 6,850 spindle hours / approx. 20,422 operating hours Condition: Used, well-maintained, ready for immediate use Technical data Control: CNC-controlled (e.g., Heidenhain / Siemens / Fanuc – depending on the configuration) Kjdpfxozcfgmj Ah Eelu Max. grinding length: 650 mm (between centers) Center height: approx. 200 mm External grinding diameter: up to approx. 390 mm Max. workpiece weight (overhang): approx. 100 kg (MK4) Max. workpiece weight between centers: approx. 250 kg X-axis travel: approx. 380 mm Z-axis travel: approx. 1,150 mm Grinding wheel diameter: 400 – 500 mm, depending on configuration Rated power: 9 – 11 kW (approx. 12 – 15 hp) Peripheral speed: 20 – 50 m/s Features and performance characteristics CNC touchscreen operation with a Windows-based interface – user-friendly programming via dialogue or DIN/ISO (optional) Two-in-one concept: the machine can be operated both conventionally and with CNC control High-precision linear and ball screw guides for high accuracy Direct measuring system (glass scales) (optional on many machines) Automatic grinding wheel truing with compensation Crash control & gap monitoring for machine and process safety Coolant system, emulsion separator, and chip conveyor available (depending on configuration) Preparation for automation / robot interface is possible The machine can be inspected in operation by appointment. Subject to changes, errors and prior sale!

Condition: used, Year of construction: 2014, Used machine Year of manufacture: 2014 Features and technical data: - Working area X: 3,740 mm - Working area Y: 1,570 mm - Working area Z: 350 mm - 4th axis: available - 5th axis: 5-axis spindle, 12 kW motor Kodox Hllxspfx Ah Eslu - with additional C-axis locking - Tool changer positions: 24 with rotary magazine; 10 in the left side of the machine stand - Vertical drilling spindles: 12 - Machine table: console table - Table positioning automation: available - 6 workpiece supports, type e-motion - Special workpiece clamping system for frames - Software: FORMAT 4 WOOD FLASH, TPA ALBATROS - 2 machining areas for pendulum operation - with automatic central lubrication - with mobile control panel with PC monitor - with air conditioning for control cabinet - with vacuum pump 90 m³/h - with hand-held control device - Included: 12 frame clamps, 8 large and 4 medium suction cups Availability: short-term Location: Röllbach

Condition: good (used), Infotec 1008 Rotary CNC machine adjustable RPM, manual or auto, 3Ph Kledpsx Ai T Nsfx Ah Esu

Condition: excellent (used), Year of construction: 2022, control OSP P 300LA spindle turning speed range 5000 U/min turret (x-stations) 12 turning diameter over bed 580 mm turning diameter over slide rest 470 mm turning diameter 340 mm turning length 800 mm x-axis 260 mm z-axis 1.010 mm Klsdpfszfql Esx Ah Eeu y-axis 120 mm spindle nose ASA 6" spindle bore 90 mm w-axis 895 mm total power requirement 22 kW weight of the machine ca. 6,8 t dimensions of the machine ca. LBH 3,5 x 2,1 x2,5 m • Turret: 12-position radial, motorized; turret motor 6,000 rpm, 7.1 kW • Pedals: Separate for spindle and tailstock • High-pressure coolant pump: 0.8 kW; 6 bar; 20 l/min • Tool presetter: Manual • Programming: IGF conversational programming incl. Chip Conveyor incl. Tools

Condition: used, Year of construction: 2022, turning diameter 420 mm turning length 1350 mm spindle passage 101 mm control Siemens SL 828D ShopTurn number of controlled axis 4 turning speed range 3000 U/min power requirement 22/18,5 kW rapid speed 30 m/min number of tapers in turret head 12/24 BMT 65 number of driven tools in turret 12 BMT 65 Spindel speed of driven tools 5000 U/min Spindelpower on driven tool 7,5/5,5 kW y-axis +/- 65 mm tail stock MT-5 weight 8,0 t dimensions 5,7 x 2,3 x 2,32 m Heavy CNC- lathe with driven tools and Y- Axis in very good condition. Klodpfx Aozfqf Sjh Eou First instalation: 03/2023 Appr. 5400 h Power on. - 2x 3-jaw chuck Ø 325 + 400 mm - some fixed tool holders - Tool pre- setter - chip conveyor - 4x driven tool holders - 2 + 2 driven toolholders with Capto C4 - oildust collector - band filter system with appr. 1000 ltr. - hydr. steady moveable wit turret SMW Autoblock SLU-X3.1 (Ø 20- 165 mm) - 3 colour signal lamp - coolant gun - some jaws - external programming system MCS40501/2 - build in spindle

Condition: used, CNC path control, computer, control unit, logic unit Heidenhain Type TNC 415 B / LE 415 B Logic unit LE 415 B, year of manufacture 1999 Item number: 267 223 49 Kedpfx Aezfqb Teh Ejlu Serial number: 5 667 843 S5 PC serial number: 252 415 01 NC serial number: 259 930-12 Installed modules: - Computer board Type S4, item number: 268 553 01 / serial number: 5 615 221 - PLC graphics Type S3, item number: 257 954 03 / serial number: 5 556 573 A - Control loop board Type G3, item number: 275 705 02 / serial number: 20 232 905 C - Power supply, item number: 236 484 10, serial number: 5 600 157 / S4 - LE 415 B neutral, item number: 267 223 CC / serial number: 5 618 369 / S4 Housing dimensions L x W x H: 510 x 190 x 415 mm Weight: 11 kg Very good condition - functional guarantee

Condition: excellent (used), CATALOG NUMBER 7854 Klodpfx Ajzfpnreh Esu Technical data: - belt length: 2515x152 mm - belt width: 150 mm - oscillation - vertical oscillation movement - sanding length: 790 mm - table size: 840x300 mm - worktable for contoured elements: 300x250 mm - worktable adjustment: 80 mm - motor: 2.2 kW - sanding unit adjustable angle: 90-45 degrees - sanding head adjustment: 0-45 degrees - extraction port diameter: 100 mm - dimensions (length/width/height): 1450/600/1230 mm - weight: 138 kg ADVANTAGES – with oscillation – with shoe – suitable for contour and straight sanding – unit can operate vertically and horizontally – unpainted – used sander, very good condition Net price: 3,900 PLN Net price: 930 EUR (depending on the 4.2 EUR rate) (Prices may change with higher fluctuations)

Condition: excellent (used), CATALOG NUMBER 7324 Technical Specifications: - Max workpiece width: 200 mm - Max workpiece height: 190 mm 2 sanding units: - Top: steel roller + pad + steel roller - Bottom: steel roller + pad + steel roller Top: - 2 pressure rollers, rubber, feed - sanding unit - idler roller - 2 pressure rollers, rubber, feed Bottom: - sanding unit - side guiding rail - electronically adjustable sanding height 0.37 kW - 6 feed speeds + forward/reverse: 2.25; 4.5; 9; 12.5; 18; 25 m/min - feed motor 0.6 kW - main motors 2 x 4 kW - extraction port diameters: 80 mm, 90 mm - overall dimensions (L/W/H): 1830 x 860 x 1760 mm - weight: 630 kg – unpainted – used sander, in very good condition Net price: 11,500 PLN Net price: 2,730 EUR (based on rate 4.2 EUR) Kljdpfezfpm Uox Ah Esu (Prices may change with significant fluctuations)

Condition: good (used), Code: 0417 Brand: PEGIC - ITALY Model: DIAMANT 10 - CE Standard Water-cooled sharpening machine and grinder with base for sharpening tools, chisels, drill bits and various tools – CE Standard Technical data: Water-cooled grinding wheel: Wheel diameter 250 mm Hole 25 – Rpm 400 Kodpfxozfp Avj Ah Eolu Grinder: Grinding wheel diameter 150 mm Hole 16 – Rpm 2800 Three-phase motor 0,75 Kw Overall dimensions mm 700 x 450 x 1100 h Weight kg 6

Condition: used, Year of construction: 2015, CNC machining center Manufacturer: Chiron Type: FZ 12 W Magnum Year of manufacture: 2015 CNC control: Siemens 840D solution line Travel ranges: X/Y/Z = 550 x 400 x 360 mm Spindle speed: 15,000 rpm Tool holder: HSK63 Internal coolant supply Rotary table Integrated workpiece changer 32-position tool changer Glass scales Klodjzfppcopfx Ah Eeu Chip conveyor Laser control for breakage monitoring 19626

Condition: used, Year of construction: 2008, functionality: fully functional, Turning / milling center with counter spindle with 10 CNC axes (X1, X2, Z1, Z2, Y1, Y2, B1, B2, C1, C2) Control: FANUC 31:iA Main Spindle Power: 15/11 kW bar material dia.: 51 mm Kledpfozfni Iox Ah Eju spindle revolution: 5.000 min-1 Counter Spindle Power: 11/7,5 kW bar material dia.: 51 mm spindle revolution: 5.000 min-1 Turning and milling spindle Power: 7,5/3,7 kW Turning and milling spindle speed: 12.000 min-1 max. rotation length turret bottom: 1.005 mm Slide cross X1 / X2 / Z1 / Z2 / B2: 455 / 222,5 /1.090 / 1.005 / 1.008 mm Slide cross Y1 / Y2: +/- 70 / +20, -50 mm Swivel range B1 axis: +/- 95 ° Linear rack magazine incl. support robot CNC support steady rest Coolant cyclone filter system incl. 2 pcs. coolant pumping spindle oil cooler

Condition: used, Year of construction: 2006, Turning diameter: 650 mm Turning length: 1,500 mm Total power requirement: 33 kW Center distance: 1,500 mm Swing diameter over bed: 650 mm Swing diameter in recess: 670 Turning diameter: 650 mm Turning length: 1,500 mm Total power requirement: 33 kW Center distance: 1,500 mm Swing diameter over bed: 650 mm Swing diameter in recess: 670 mm Klsdpfx Ahezfmu No Eou Swing diameter over face slide: 260 mm Face slide travel: 380 mm Main drive Drive power AC motor - 40/60/100% duty cycle: 33/27/22 kW Spindle box Spindle bore diameter: 106 mm Spindle diameter in front bearing: 140 mm Speed range (V constant): 1 - 2,000 rpm Cross slide Feed range, face: 0.001 - 1,000 mm/rev Feed range, face, optional up to: 5,000 mm/rev Feed range, longitudinal and thread pitch: 0.001 - 2,000 mm/rev Feed range longitudinal and thread pitch, optional up to: 13,000 mm/rev Feed force flat: 9,000 N Feed force longitudinal: 12,000 N Automatic tool turret Number of tool stations: 12 With tool drive for 6 stations Tool holder system (DIN69880) VDI40 Equipment SIMENS SINUMERIK 840D sl (Shop Turn with manual functions) COMBI control station C-axis with drilling, milling, and engraving cycles Residual material detection and machining – during roughing and contour pockets MULTIFIX C forne setup Three-jaw chuck SMW AUTOBLOK: HI-GRIP HGF260-81-3 Oil emulsion mist filter for work area extraction: MAHLE LTA600

Condition: excellent (used), Year of construction: 2011, functionality: fully functional, Turning diameter: 4,000 mm Turning height: 550 mm Chuck: Wagner magnetic chuck Control system: SIEMENS Kedpfx Aszfl D Aeh Eslu Automatic grinding wheel changer for each grinding spindle

Condition: good (used), Year of construction: 1989, operating hours: 64,136 h, Centre height: 350 mm Turning length: 1000 mm Max. swing diameter over bed cover: 600 mm Max. swing diameter over cross slide: 360 mm Spindle bore: 107 mm Speed range: 16 – 3150 rpm Feed range longitudinal & face: 0.5 – 5000 mm/min Rapid traverse longitudinal & face: 9 m/min Main drive: 30 kW Dimensions of machine with chip conveyor (L x W x H): 5400 x 2200 x 2000 mm Weight: 6400 kg Accessories / Special features: • CNC control GILDEMEISTER EPL 2 with TFT display General description: CNC manual input control system with program entry via function and numeric keypad. All information is entered in dialogue with the screen. Integrated menu technology with plain text display of all functions. Operator keypad, display, and electronic handwheel located within a separate chip guard housing. The EPL control offers the following capabilities: • Direct interactive program entry and editing by the operator through the EPL control without manual technological preparation • NC programs in ISO/EIA format can be entered, output, or manually keyed in via the RS 232 serial interface Machining cycles: • Removal cycles for longitudinal, facing, and contour turning, including with allowance • Thread cutting • Undercuts as per DIN 509-Form E and F and DIN 76; grind stock programmable • Axial and radial grooves as per DIN 471 and 472, including bottom finishing • 90° radii and 45° chamfers • Automatic cutter radius compensation for cycles, undercut, groove, radius, chamfer Programming: • Block-orientated, metric/inch, diameter for absolute entry, radius for incremental entry • Full circle programming, subroutine technology, hide levels for program sections, zero point offset, mode selection via menu Program entry and output: • Interactive via guided menu or direct in dialogue • Hydraulic 3-jaw chuck Ø 315 mm with through spindle bore Ø 80 mm • Hinged chip conveyor • 12-position tool turret VDI 40, 6 standard stations + 6 driven tool stations Klsdpfx Ajvr Eh Eeh Esu • Coolant system • RS 232 interface • Electronic handwheel • Electric foot switch for 3-jaw chuck and tailstock quill • Lighting • 12 various standard toolholders (to be finalized on site) Overhauled servo drive for main spindle, 06/2025 Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel

Condition: good (used), Code: 0416 Brand: WALTER AG Kedpfx Aszfh Spjh Eslu Model: CHRISTEN AU 160 Universal sharpening machine for the precision grinding and trimming of milling cutters, tools HS and HM, drill bits and other cutting tools Micrometric adjustment of the axis Adjustable grinding wheel head Rigid cast iron base frame Overall dimensions mm 1200 x 1000 x 1600 h

Condition: good (used), Year of construction: 2012, 5-Axis CNC Machining Center Manufacturer: AXA Machine Model: VPC-2800U Control System: Siemens Year of Manufacture: 2012 Technical Specifications Working Area - X travel vertical (mm): 3,900 - Y travel (mm): 2,940 - Z travel (mm): 1,100 CNC Rotary Table - Clamping area (mm): ø 2,800 Feed Drive - Max. rapid traverse speed in X/Y/Z (m/min): 30/30/25 Working Spindle - Standard drive No.: 140 Spindle speed range (rpm): 30-7,500 Spindle power max. duty cycle 100% (kW): 63 Spindle torque max. duty cycle 100% (Nm): 191 Tool holder: SK50 Kledezfhdxjpfx Ah Eju Swivel Head - Swivel range B-axis (degrees): 90 - Indexing: freely interpolating Tool Changer - Tool stations: 60 Please note: The machine is NOT equipped with a turning function. Changes and errors in the technical data and information excepted.

Condition: used, Year of construction: 1992, Weiler Guide and Lead Screw Lathe Type / Model: Condor B Condition: Used Year of Manufacture: 1992 Technical Data Center height: 165 mm Kledpfxezfhgts Ah Esu Center distance: 750 mm Swinging diameter over bed: 330 mm Swinging diameter over cross slide: 180 mm - 185 mm Main spindle and drive Speed range: 22 - 2800 rpm Spindle bore: 40 mm Spindle head: DIN 55027 / Size 5 (with bayonet fitting) Drive power: 3.2 kW Feed and threading Longitudinal feeds: 0.016 - 0.8 mm/rev Metric thread pitches: 0.18 - 28 mm Tailstock Internal taper of the quill: MK 3 Quill travel: 110 mm Dimensions (L/W/H) approx.: 2000 mm x 860 mm x 1600 mm Weight approx.: 1,100 kg Delivery costs via freight forwarder to the curb are shown in the shopping cart or in the individual offer for items on request.

Condition: used, Year of construction: 2007, operating hours: 33,122 h, Hermle simultaneous 5-axis CNC machining center Type/Model: U 1130 Condition: Used Year of manufacture: 2007 Operating hours: 33,122 h Spindle hours: 12,054 h Technical data: Travel range X/Y/Z: 1130 (1300) mm x 720 mm x 630 mm Feed rate: Manual / setup mode: 1 - 2000 mm/min Programmable X-Y axis: 1 - 30000 mm/min Programmable Z axis: 1 - 20000 mm/min Rotary table: Tool interface: SK 40 Total connected load: 32 kW Space requirement (L/W/H) approx.: 3.66 m x 4.38 m x 2.57 m Weight approx.: approx. 10 tons Equipment: - Heidenhain iTNC 530 control system - Heidenhain TS 640 infrared measuring probe - 16-position tool changer - incl. SK 40 tool interface plus various tools - Machine vise - IKZ (internal coolant supply) - Paper band filter - Oil cooler - Chip conveyor Kledszfg U Nopfx Ah Eju - Control cabinet air conditioning - RS 232 interface - LAN interface Costs for delivery by freight forwarder to the curb, see shopping cart or individual offer for inquiry items.

Condition: good (used), Year of construction: 2005, functionality: fully functional, turning length: 500 mm, turning diameter: 320 mm, Fanuc Oi-TD cnc control collet chuck device 10-fold revolver Klodpey Dqvwefx Ah Esu tail stock chip conveyor Technische Daten: / technical details max. Drehdurchmesser / max. turning diameter 320 mm max. Drehlänge / max. turning length 500 mm X-Weg / X-travel 180 mm Z-Weg / Z-travel 520 mm max. Drehzahl / max. spindle speed 6000 UpM /rpm Anzahl der Revolverplätze / number of tool places 10 Gewicht ca. / weight ca. 3200 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: good (used), Year of construction: 2007, functionality: fully functional, drilling depth: 1,150 mm, overall weight: 12,000 kg, drill diameter: 32 mm, Heidenhain iTNC530 cnc control 12-fold tool changer Technische Daten / technical details: Wege: / travels: X-Achse längs (Tisch) / X-axis longitudinal (table) 1800 mm Z-Achse quer (Ständer) / Z-axis cross (column) 1700 mm W-Achse quer (Bohreinheit) / W-axis cross (drilling unit) 1150 mm Y-Achse senkrecht (Bohreinheit) / Y-axis vertical (drilling unit) 1200 mm B-Achse (Rundtisch) / B-axis (rotary table) 360 ° A-Achse (Bohreinheit) / A-axis (drilling unit) -25 - +15 ° Bohrbereich-Tiefbohren (ELB): / drilling area-deep drilling (ELB): Durchmesserbereich / diameter range 6-32 mm Kledpjwcldaofx Ah Eou max. mögliche Bohrtiefe / max. drilling depth 1150 mm Antriebsleistung / drive capacity 40 kW Gewicht der Maschine ca. / weight ca. 12000 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding. For more technical details please look at the photos

Condition: good (used), Year of construction: 2015, functionality: fully functional, turning length: 650 mm, turning diameter: 400 mm, Fanuc Oi-TD control 3-jaw chuck diameter 250mm 12-fold revolver tail stock chip conveyor The machine has only 4051 switch-on hours Technische Daten: / technical details Kledpfevi Haqjx Ah Eeu Schwingdurchmesser / rotary diameter 650 mm Drehdurchmesser / turning diameter 400 mm Drehlänge / turning length 650 mm X-Weg / X-travel 230 mm Z-Weg / Z-travel 650 mm max. Drehzahl / max. spindle speed 4500 UpM /rpm Anzahl der Revolverplätze / number of tool places 12 Antriebsleistung Spindel / drive capacity spindle 11/15 kW Gewicht ca. / weight ca. 5400 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Year of construction: 2006, condition: good (used), CNC control Sinumerik 810D 12-fold revolver bar loading device Breuning Irco Simag 42.1R (max. bar diameter 42mm) Ksdpfxelfdazo Ah Eelu chip conveyor tail stock Technische Daten / technical details: Umlaufdurchmesser über Bett / rotary diameter over bed 550 mm max. Drehdurchmesser / max. turning diameter 300 mm max. Drehlänge / max. turning lenght 300 mm X-Weg / X-travel 170 mm Z-Weg / Z-travel 335 mm max. Stangendurchlass / max. bar diameter 45 mm Drehzahl / spindle speed 6000 UpM /rpm Werkzeugrevolver / turret head 12 fach /holes Eilgang X / rapid feed X 36 m/min Eilgang Z / rapid feed Z 36 m/min. Antriebsleistung / drive capacity 20 kW Gewicht der Maschine ca. / weight ca. 3500 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: good (used), Year of construction: 2016, functionality: fully functional, turning length: 669 mm, turning diameter: 330 mm, travel distance X-axis: 260 mm, travel distance Z-axis: 762 mm, bar passage: 75 mm, CNC control Sinumerik 828D 12-fold revolver Sauter VDI40 driven tools C-axis 3-jaw chuck and collet chuck device Tool Eye part catcher chip conveyor tail stock coolant device with high pressure pump Kedpfx Ajyt Hp Djh Ejlu bar loading device Iemca Technische Daten / technical details: Umlaufdurchmesser über Bett / rotary diameter over bed 600 mm max. Drehdurchmesser / max. turning diameter 330 mm max. Drehlänge / max. turning length 669 mm X-Weg / X-travel 260 mm Z-Weg / Z-travel 762 mm Drehzahl / spindle speed 3400 UpM /rpm Werkzeugrevolver / turret head 12 fach /holes max. Stangendurchmesser / max. bar diameter 75 mm Eilgang X / rapid feed X 20 m/min Eilgang Z / rapid feed Z 24 m/min. Gewicht der Maschine ca. / weight ca. 5700 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Year of construction: 2012, condition: good (used), Mazatrol Smart CNC control 3-jaw chuck C-axis driven tools 12-fold revolver Tool Eye tail stock coolant device chip conveyor Technische Daten / technical details: max. Umlaufdurchmesser / max. swing diameter 660 mm max. Drehdurchmesser/ max. turning diameter 350 mm max. Drehlänge / max. turning length 532 mm Planweg (x) / cross way (x) 225 mm Längsweg (z) / longitudinal way (z) 560 mm Drehzahlbereich / spindle speed 5000 UpM /rpm Drehzahl angetriebene Werkzeuge / speed of driven tools 4500 UpM / rpm Werkzeugrevolver / turret head 12 fach /holes Eilgang X/Z / rapid feed X/Z 30/33 m/min Antriebsleistung Spindel / drive capacity spindle 15 kW Kodpfx Ahoiyx Dio Eolu Gewicht der Maschine ca. / weight 4500 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.