Condition: used, total height: 2,500 mm, total length: 5,000 mm, total width: 2,200 mm, Empty weight: 5.500 kg Price: On request Bodpfx Aaswnhm Ieajda - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Serial number: 12598 - Drive system: Teach-in - Control system brand: Fagor - Control system type: 8055 - Power [kW]: 15.0 - Centre height [mm]: 350 - Swing over bed [mm]: 700 - Carriage turning diameter [mm]: 425 - Distance between centres [mm]: 2000 - Bed width [mm]: 450 - Spindle bore [mm]: 105 - Min. spindle speed [rpm]: 310 - Max. spindle speed [rpm]: 2000 - Max. workpiece weight [kg]: 4000 - Options: Digital readout, Removable bed - Type of digital readout: Heidenhain Manualplus - Control: CNC - Transport dimensions: 5000mm x 2200mm x 2500mm (l x w x h) - Transport weight [kg]: 5500kg 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

Condition: used, total height: 1,700 mm, total length: 6,000 mm, total width: 1,700 mm, Empty weight: 6.500 kg Price: On request Lathe metal lathe Model: Conventional Manufacturer: TOS Type: SUI 63 Serial number: 407620860 Center distance: 4000mm Center height: 325mm Turning diameter: 630mm Spindle passage: 80mm Bedpfswnhy Ijx Aaaeda Spindle speed: 11,2-1800 rpm Machine-afmeting: 6000x1700x1700mm Machine weight: 6500kg - Documentation available: No - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 325 - Swing over bed [mm]: 630 - Distance between centres [mm]: 4000 - Spindle bore [mm]: 80 - Min. spindle speed [rpm]: 11.2 - Max. spindle speed [rpm]: 1800 - Transport dimensions: 6000mm x 1700mm x 1700mm (l x w x h) - Transport weight [kg]: 6500kg 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

Condition: used, total height: 1,400 mm, total length: 5,800 mm, total width: 1,650 mm, Empty weight: 5.500 kg - Documentation available: No Bodpfxswxdhce Aaajda - CE certificate present: No - Serial number: M4L-35492 - Drive system: Conventional - Power [kW]: 9.0 - Centre height [mm]: 315 - Swing over bed [mm]: 630 - Distance between centres [mm]: 4000 - Spindle bore [mm]: 80 - Min. spindle speed [rpm]: 20 - Max. spindle speed [rpm]: 900 - Transport dimensions: 5800mm x 1650mm x 1400mm (l x w x h) - Transport weight [kg]: 5500kg - Transport packages [pcs.]: 2 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

Condition: used, total height: 2,500 mm, total length: 3,500 mm, total width: 2,500 mm, Empty weight: 10.000 kg Price: On request - Documentation available: Yes - CE certificate present: No - Drive system: Conventional - Power [kW]: 11.5 - Centre height [mm]: 700 - Swing over bed [mm]: 1400 Bdedpfoyx Tviex Aaasa - Carriage turning diameter [mm]: 640 - Distance between centres [mm]: 800 - Bed width [mm]: 700 - Spindle bore [mm]: 80 - Min. spindle speed [rpm]: 240 - Max. spindle speed [rpm]: 110 - Options: Digital readout, Facing lathe, Quick-change tool post - Transport dimensions: 3500mm x 2500mm x 2500mm (l x w x h) - Transport weight [kg]: 10000kg - Transport packages [pcs.]: 3 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

Condition: used, Year of construction: 1980, total length: 1,960 mm, total width: 1,050 mm, total height: 1,570 mm, Empty weight: 1.500 kg - Year: 1980 - Documentation available: No - CE certificate present: No - Serial number: 1123 - Drive system: Conventional Bjdpfx Aoyvtkhoaaoda - Power [kW]: 5.5 - Centre height [mm]: 180 - Swing over bed [mm]: 360 - Distance between centres [mm]: 800 - Bed width [mm]: 330 - Spindle bore [mm]: 52 - Min. spindle speed [rpm]: 44 - Max. spindle speed [rpm]: 2000 - Options: Quick-change tool post, Four-jaw chuck - Transport dimensions: 1960mm x 1050mm x 1570mm (l x w x h) - Transport weight [kg]: 1500kg - 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

Condition: used, Year of construction: 1999, total height: 2,000 mm, total length: 3,000 mm, total width: 1,800 mm, Empty weight: 4.000 kg Price: On request Driven tools included Barfeeder included - Year: 1999 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Serial number: HT23372E - Drive system: CNC Bdsdpfswqf I Usx Aaaja - Power [kW]: 15.0 - Centre height [mm]: 230 - Swing over bed [mm]: 450 - Distance between centres [mm]: 380 - Spindle bore [mm]: 59 - Min. spindle speed [rpm]: 30 - Max. spindle speed [rpm]: 5000 - Options: Bar feeder, Live tools - Transport dimensions: 3000mm x 1800mm x 2000mm (l x w x h) - Transport weight [kg]: 4000kg - Transport packages [pcs.]: 4 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

Condition: used, total width: 1,700 mm, total length: 3,800 mm, total height: 2,000 mm, Empty weight: 6.000 kg CNC Internal grinder, converted from a CNC lathe - Documentation available: Yes - CE certificate present: No - Serial number: UC-1871 - Drive system: CNC - Power [kW]: 15.0 - Centre height [mm]: 115 - Swing over bed [mm]: 380 - Distance between centres [mm]: 635 - Spindle bore [mm]: 75 - Max. spindle speed [rpm]: 3500 - Options: Removable bed - Swing over removable bed [mm]: 520 - Transport dimensions: 3800mm x 1700mm x 2000mm (l x w x h) Bdodew A I Uhepfx Aaaea - Transport weight [kg]: 6000kg - Transport packages [pcs.]: 2 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

Condition: used, Year of construction: 2014, total height: 1,950 mm, total length: 2,400 mm, total width: 1,600 mm, Empty weight: 2.000 kg Price: On request - Year: 2014 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Serial number: 3098034 - Drive system: CNC - Centre height [mm]: 450 - Swing over bed [mm]: 900 Bdsdpfx Ajxq Aqweaasa - Distance between centres [mm]: 900 - Bed width [mm]: 445 - Spindle bore [mm]: 60 - Max. spindle speed [rpm]: 1800 - X-axis travel [mm]: 203 - Z-axis travel [mm]: 762 - Transport dimensions: 2400mm x 1600mm x 1950mm (l x w x h) - Transport weight [kg]: 2000kg - Transport packages [pcs.]: 2 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

Condition: used, total length: 3,400 mm, total width: 1,100 mm, total height: 1,400 mm, Empty weight: 4.000 kg - Documentation available: No - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 365 - Swing over bed [mm]: 725 Bedsytghaopfx Aaaeda - Carriage turning diameter [mm]: 400 - Distance between centres [mm]: 1600 - Bed width [mm]: 500 - Spindle bore [mm]: 82 - Min. spindle speed [rpm]: 16 - Max. spindle speed [rpm]: 1250 - Options: Fixed steady, Three-jaw chuck - Transport dimensions: 3400mm x 1100mm x 1400mm (l x w x h) - Transport weight [kg]: 4000kg - 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

Condition: used, Year of construction: 1979, total height: 1,700 mm, total length: 4,900 mm, total width: 1,900 mm, Empty weight: 8.000 kg Price: On request Metal turning lathe Bdjdpewnhf Rofx Aaasa Model: Conventional Manufacturer: TOS Type: SU-100 Centerdistance: 2000mm Turningdiameter above bed: 1050mm Spindle-hole: 105mm Motorpower: 22kW Spindle-speed: 2,24-450rpm Max. workpiece weight: 5000kg Including 4-jaw-chuck + lynette Machine-dimensions: 4900x1900x1700mm Machine-weight: 8000kg Machine has been tested, in very good condition Video is available - Year: 1979 - Documentation available: No - CE certificate present: No - Serial number: 0429412 - Drive system: Conventional - Power [kW]: 22.0 - Swing over bed [mm]: 1050 - Distance between centres [mm]: 2000 - Spindle bore [mm]: 105 - Min. spindle speed [rpm]: 2.24 - Max. spindle speed [rpm]: 450 - Options: Four-jaw chuck, Fixed steady - Transport dimensions: 4900mm x 1900mm x 1700mm (l x w x h) - Transport weight [kg]: 8000kg 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

Condition: used, total length: 6,800 mm, total width: 2,200 mm, total height: 2,000 mm, Empty weight: 11.000 kg Price: On request - Documentation available: Yes - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 630 - Swing over bed [mm]: 1300 - Carriage turning diameter [mm]: 1000 - Distance between centres [mm]: 4000 - Bed width [mm]: 700 - Spindle bore [mm]: 120 - Min. spindle speed [rpm]: 2.8 - Max. spindle speed [rpm]: 400 - Options: Three-jaw chuck, Four-jaw chuck, Removable bed, Quick-change tool post, Fixed steady, Travelling steady - Swing over removable bed [mm]: 1700 - Transport dimensions: 6800mm x 2200mm x 2000mm (l x w x h) - Transport weight [kg]: 11000kg - Transport packages [pcs.]: 2 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Bjdox Iriajpfx Aaajda Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: used, total length: 4,500 mm, total width: 1,600 mm, total height: 1,500 mm, Empty weight: 5.000 kg Price: On request - Documentation available: No - CE certificate present: No - Serial number: 0440922 - Drive system: Conventional - Power [kW]: 18.5 Bsdpfx Aasx Ryv Toasda - Centre height [mm]: 315 - Swing over bed [mm]: 630 - Carriage turning diameter [mm]: 400 - Distance between centres [mm]: 3000 - Bed width [mm]: 580 - Spindle bore [mm]: 82 - Min. spindle speed [rpm]: 9 - Max. spindle speed [rpm]: 1120 - Options: Three-jaw chuck, Four-jaw chuck - Transport dimensions: 4500mm x 1600mm x 1500mm (l x w x h) - Transport weight [kg]: 5000kg - 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

Condition: used, Year of construction: 1975, total length: 4,400 mm, total width: 1,450 mm, total height: 1,700 mm, Empty weight: 4.000 kg - Year: 1975 - Documentation available: Yes - CE certificate present: No - Serial number: 1677 - Drive system: Conventional - Centre height [mm]: 230 - Swing over bed [mm]: 460 - Distance between centres [mm]: 2000 - Spindle bore [mm]: 70 - Min. spindle speed [rpm]: 7.1 - Max. spindle speed [rpm]: 1400 - Options: Three-jaw chuck, Quick-change tool post, Travelling steady, Fixed steady - Transport dimensions: 4400mm x 1450mm x 1700mm (l x w x h) - Transport weight [kg]: 4000kg - Transport packages [pcs.]: 4 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 Bsdpfx Aaoxixh Nsasda Lukas van Rossum

Condition: used, Year of construction: 1966, total length: 1,700 mm, total width: 900 mm, total height: 1,300 mm, Empty weight: 1.000 kg - Year: 1966 - Documentation available: No - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 180 Bsdpjywt U Nefx Aaasda - Swing over bed [mm]: 350 - Carriage turning diameter [mm]: 200 - Distance between centres [mm]: 500 - Bed width [mm]: 190 - Spindle bore [mm]: 30 - Transport dimensions: 1700mm x 900mm x 1300mm (l x w x h) - Transport weight [kg]: 1000kg - 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

Condition: used, Year of construction: 1970, total height: 1,400 mm, total length: 3,650 mm, total width: 1,300 mm, Empty weight: 2.200 kg - Year: 1970 - Documentation available: No - CE certificate present: No - Drive system: Conventional - Power [kW]: 9.0 - Centre height [mm]: 330 - Swing over bed [mm]: 660 - Distance between centres [mm]: 2000 - Spindle bore [mm]: 88 Bdsdjwxwd Repfx Aaasa - Min. spindle speed [rpm]: 5.6 - Max. spindle speed [rpm]: 3200 - Transport dimensions: 3650mm x 1300mm x 1400mm (l x w x h) - Transport weight [kg]: 2200kg 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

Condition: used, total length: 4,400 mm, total width: 1,000 mm, total height: 1,700 mm, Empty weight: 3.500 kg Price: On request Lathe, Metal turning machine Model: Conventional Manufacturer: Cazeneuve Type: HB575. Turning-diameter: 575mm Centerdistance: 3000mm Spindle-hole: 51mm Spindle-speed: 12-1000 rpm Incl. chipcontainers (2x) Bdodpfxew Ryxte Aaaoa Incl. Lunette Incl. Four-jaw chuck 500mm Incl. Three-jaw chuck 300mm Machine-dimensions: 4400x1000x1700mm Machine-weight: 3500kg - Documentation available: No - CE certificate present: No - Drive system: Conventional - Swing over bed [mm]: 575 - Distance between centres [mm]: 3000 - Spindle bore [mm]: 51 - Min. spindle speed [rpm]: 12 - Max. spindle speed [rpm]: 1000 - Options: Fixed steady, Three-jaw chuck, Four-jaw chuck - Transport dimensions: 4400mm x 1000mm x 1700mm (l x w x h) - Transport weight [kg]: 3500kg 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

Condition: used, Year of construction: 2006, total height: 1,750 mm, total length: 2,790 mm, total width: 1,570 mm, Empty weight: 4.300 kg Price: On request - Year: 2006 - Documentation available: Yes - CE certificate present: No - Serial number: GN08201038G - Drive system: CNC - Control system brand: Fanuc - Control system type: 0i-Mate TO - Power [kW]: 15.0 - Swing over bed [mm]: 250 - Distance between centres [mm]: 460 - Spindle bore [mm]: 62 Bdjdpewfpaqsfx Aaaja - Max. spindle speed [rpm]: 4500 - Options: Removable bed - Swing over removable bed [mm]: 460 - Transport dimensions: 2790mm x 1570mm x 1750mm (l x w x h) - Transport weight [kg]: 4300kg - Transport packages [pcs.]: 2 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: 2006, condition: used, total length: 4,300 mm, total width: 2,100 mm, total height: 2,100 mm, Empty weight: 5.000 kg Price: On request - Year: 2006 - Documentation available: Yes - CE marking present: Yes Bodsyf H Ahspfx Aaaoda - CE certificate present: No - Drive system: CNC - Control system brand: Siemens - Power [kW]: 30.0 - Swing over bed [mm]: 350 - Distance between centres [mm]: 600 - Bed width [mm]: 210 - Spindle bore [mm]: 62 - Max. spindle speed [rpm]: 3500 - Options: Chip conveyor, Three-jaw chuck, Bar feeder, Live tools, C-axis - X-axis travel [mm]: 271 - Y-axis travel [mm]: 600 - Transport dimensions: 4300mm x 2100mm x 2100mm (l x w x h) - Transport weight [kg]: 5000kg - Transport packages [pcs.]: 4 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

Condition: used, total length: 10,560 mm, total width: 1,710 mm, total height: 1,400 mm, Empty weight: 9.000 kg Price: On request - Documentation available: No - CE certificate present: No - Drive system: Conventional - Power [kW]: 22.0 - Centre height [mm]: 315 - Swing over bed [mm]: 630 - Carriage turning diameter [mm]: 360 - Distance between centres [mm]: 8000 - Bed width [mm]: 700 - Spindle bore [mm]: 62 - Min. spindle speed [rpm]: 8 - Max. spindle speed [rpm]: 1180 - Options: Digital readout Bsdpfx Asyg Hi Rjaaeda - Type of digital readout: Sony - Transport dimensions: 10560mm x 1710mm x 1400mm (l x w x h) - Transport weight [kg]: 9000kg - 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

Condition: used, Year of construction: 1997, total length: 1,500 mm, total width: 800 mm, total height: 1,500 mm, Empty weight: 700 kg - Year: 1997 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No Bdodpfox Dyquex Aaaoa - Serial number: 1101050 - Drive system: Conventional - Power [kW]: 4.2 - Centre height [mm]: 125 - Swing over bed [mm]: 250 - Carriage turning diameter [mm]: 160 - Distance between centres [mm]: 500 - Bed width [mm]: 160 - Spindle bore [mm]: 38 - Min. spindle speed [rpm]: 60 - Max. spindle speed [rpm]: 3000 - Transport dimensions: 1500mm x 800mm x 1500mm (l x w x h) - Transport weight [kg]: 700kg - 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

Condition: used, Year of construction: 1960, total height: 1,500 mm, total length: 1,400 mm, total width: 6,050 mm, Empty weight: 4.500 kg Price: On request - Year: 1960 - Documentation available: No - CE certificate present: No - Serial number: - Drive system: Conventional - Centre height [mm]: 275 - Swing over bed [mm]: 550 - Distance between centres [mm]: 4000 - Spindle bore [mm]: 71 - Min. spindle speed [rpm]: 10 - Max. spindle speed [rpm]: 1000 - Options: Removable bed - Swing over removable bed [mm]: 880 - Control: Conventional - Transport dimensions: 1400mm x 6050mm x 1500mm (l x w x h) - Transport weight [kg]: 4500kg - Transport packages [pcs.]: 1 Financial information Bdsdswnhpispfx Aaasa 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

Condition: used, Year of construction: 1997, - Year: 1997 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No Bdedpownh I Ssfx Aaasa - Serial number: 270 - Drive system: Teach-in - Centre height [mm]: 210 - Swing over bed [mm]: 420 - Distance between centres [mm]: 900 - Spindle bore [mm]: 55 - Min. spindle speed [rpm]: 4 - Max. spindle speed [rpm]: 3000 - Options: Digital readout - Type of digital readout: Weiler - Control: CNC 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

Condition: used, total height: 1,600 mm, total length: 5,000 mm, total width: 1,600 mm, Empty weight: 3.190 kg - Documentation available: No - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 315 - Swing over bed [mm]: 630 - Distance between centres [mm]: 3000 - Spindle bore [mm]: 80 - Min. spindle speed [rpm]: 10 - Max. spindle speed [rpm]: 1000 - Options: Digital readout, Removable bed - Swing over removable bed [mm]: 900 - Type of digital readout: 2 assen - Control: Conventional Bsdpfxjwnitio Aaaoda - Transport dimensions: 5000mm x 1600mm x 1600mm (l x w x h) - Transport weight [kg]: 3190kg - 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

Condition: used, Year of construction: 1992, total length: 4,200 mm, total width: 1,950 mm, total height: 2,300 mm, Empty weight: 8.500 kg Price: On request X-axis: 305mm Z-axis: 855mm Stroke counter center: 100 mm  - Year: 1992 - Documentation available: No - CE certificate present: No - Serial number: MD-1130 - Drive system: CNC - Swing over bed [mm]: 650 - Distance between centres [mm]: 855 - Spindle bore [mm]: 105 Bjdpfx Aaew Slncsajda - Max. spindle speed [rpm]: 2500 - X-axis travel [mm]: 305 - Z-axis travel [mm]: 855 - Transport dimensions: 4200mm x 1950mm x 2300mm (l x w x h) - Transport weight [kg]: 8500kg - Transport packages [pcs.]: 2 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

Condition: used, Year of construction: 1999, total height: 1,800 mm, total length: 2,200 mm, total width: 1,600 mm, Empty weight: 2.150 kg Price: On request - Year: 1999 - Documentation available: Yes - CE marking present: Yes - CE certificate present: No - Serial number: 39 - Drive system: Teach-in - Control system brand: Heidenhain - Power [kW]: 7.5 - Centre height [mm]: 160 - Swing over bed [mm]: 320 - Distance between centres [mm]: 800 - Spindle bore [mm]: 50 - Max. spindle speed [rpm]: 4000 - Transport dimensions: 2200mm x 1600mm x 1800mm (l x w x h) - Transport weight [kg]: 2150kg - Transport packages [pcs.]: 1 Bjdpfx Aaewfpakoaoda 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