Used Casadei Samec Machining Centre Casadei Mc 5016 Alu Ran for sale (75,893)

Condition: excellent (used), Year of construction: 2014, functionality: fully functional, machine/vehicle number: 1111254, MACHINE SPECIFICATION Table size 660mm x 356mm X axis traverse 508mm Y axis traverse 406mm Z axis traverse 508mm Spindle nose to table 102-610mm Spindle BT40 Spindle speeds 0-8100rpm Spindle motor 14.9kW Nodpfx Aheyrrx Uefolf Rapid feed rate 25.4m/min Toolchanger capacity 20 tools Approximate weight 3220Kg MACHINE EQUIPPED WITH: - Haas (Fanuc compatible) CNC Control Swarf auger Filtermist extraction system 10 off assorted BT40 toolholders Programmable coolant nozzle Automatic lubrication system Lighting Enclosed guarding

Condition: good (used), Year of construction: 2019, CNC machine with fixed table and dual drive gantry, five axis interpolating electrospindle. Particularly suitable for SIPS panels, woodworking, plywood, MDF, plastics and thermo formed prodcuts. 6120mm x 1605mm Working field in X / Y axis 6850mm X axis stroke 1970mm Y axis stroke 1080mm Z axis stroke Max height / panel passge 700mm C axis rotation + / - 360 degrees 12kw electrospindle with programmable speeds from 500 - 22,000 rpm 12 Position automatic toolchanger Auxiliary 2 position toolchanger 250m3/hr vacuum pump 2 Field phenolic working table suitable for vacuum cups Hoist points to fix jigs [ series of threaded holes on table for mechanical fixing ] Set of 3 disappearing stops Nedpfx Ahjvpv Nbjfolf OSAI Series 10 CNC control including [ for example ] PC with Windows XP [ or higher ] Interactive programming Paramteric programming 3D interplolation Cutter radius compensation Extraction requirements 2200m3/hr Weight 5235kg Year - 2019 CE FULL ORIGINAL SPECIFICATION SHOWN IN IMAGES

Year of construction: 2016, condition: used, Schuco AF300 CNC Profile Machining Centre, 3 Sided Machining of Aluminium & Steel Profiles, 4000mm Bed Length, 18,000 Spindle Speeds, 8 Position ATC, BT30 Spindle Taper, 5 Separately Driven Clamping Blocks, Digital Tool Height Pre Setter, BT30 Tool Rack and Collets. S/No. 9912917 (2016). Country of Origin: Italy Nedpfjzqdrijx Ahfjlf Location: These lots are located in Burton-on-Trent, UK. Please see individual lot for loading information and charges.

Condition: used, Year of construction: 2001, x-travel 2050 mm y-travel 1100 mm z-travel 800 mm Control Fanuc 18iM Super Cap II turning speeds 60-6000 U/min tool magazin: 60 Nedpjrw Dknjfx Ahfjlf tool taper BT50 total power requirement 26 kW weight of the machine ca. 23,6 t required space 6,3 x 3,3 x 3,8 m

Condition: used, Year of construction: 2001, x-travel 600 mm Nsdpfx Aex Szq Ishfelf y-travel 450 mm z-travel 400 mm Control FIDIA C1*/F tool magazin: 20 tool taper HSK 63 table load 0,7 t positioning accuracy 0.010 mm total power requirement / kW weight of the machine ca. 4,2 t Including automatic tool changer. Chain magazine with collets for 20 tool holders.

Condition: used, machine/vehicle number: 008697, X axis working area: 3200 mm Y axis working area: 1250 mm Main Electrospindle power: 6.5 KW Number of controlled axes: 4 axes Nljdpezruzqofx Ahfef Total number of drilling spindles: 43 Total number of tool changer positions: 8

Year of construction: 2011, condition: used, overall weight: 50,000 kg, total length: 9,500 mm, total width: 8,000 mm, total height: 5,200 mm, Working Area X-axis travel 3,900 mm Y-axis travel 2,940 mm Z-axis travel 1,100 mm B-axis (swivel head) 90° freely interpolating NC rotary table Ø 2,800 mm Max. workpiece weight 15,000 kg Spindle Tool holder SK 50 Spindle power 63 kW Max. torque 200 Nm Max. speed 6,000 min⁻¹ Feed Rapid traverse X/Y/Z 30 / 30 / 25 m/min Feed force 9,000 N Tool magazine Tool positions 20 Max. tool diameter 110 mm With free adjacent positions 180 mm Max. tool length 400 mm Rotary Table Clamping surface Ø 2,800 mm Max. transport load 15,000 kg Tangential moment 40,000 Nm Tilting moment 90,000 Nm Electrical connection values 3 × 400 V / 50 Hz Nlodpfx Ahozwa Rnjfef Equipment HEIDENHAIN iTNC 530 HSCI NC rotary table Ø 2,800 mm Freely interpolating swivel head Portal design Full enclosure Automatic central lubrication Coolant system Chip conveyor Control panel on swivel arm Control: HEIDENHAIN iTNC 530 HSCI Travel X-axis: 3900 - mm Dimensions (LxWxH) approx.: 9500 x 8000 x 5200 mm 5-axis machining: Yes Travel Y-axis: 2940 - mm Movement B-axis: 90 - ° NC rotary table: Yes Travel Z-axis: 1100 - mm Weight approx.: 50,000 kg Year of construction: 2,011 Condition: in working order Terms of payment: 100% prepayment before pick-up Terms of delivery: EXW EX Works under power: Yes

Condition: used, Year of construction: 2001, x-travel 1000 mm Nljdpfx Aeztfx Ashfsf y-travel 800 mm z-travel 500 mm control Siemens 611

Condition: ready for operation (used), Year of construction: 2005, functionality: fully functional, CNC Machining Centre – Horizontal | Brand: HÜLLER HILLE | Type: nbh 170R Year of manufacture: 2005 The machine can be inspected under power by prior appointment. Condition: In working order / ready for operation. TECHNICAL SPECIFICATIONS: Working area - X/Y/Z axes: 1.000/800/800 mm - Workpiece swivel range within the working area: Ø 900 mm - Distance from table centre to spindle nose in Z: 138.9 (HSK-A 100) mm Position measurement system - Encoder scales: direct (measurement method) - Position uncertainty A according to DIN ISO 230-2: 0.007 mm 180-degree pallet changer with 4 x 90-degree pallet rotators Pallet - Pallet clamping surface to DIN 55201, Form A2: 500 x 630 mm - Transport load per pallet: approx. 0,8 tons - Height of the system: 1.100 mm NC rotary table (B-axis) - Smallest incremental step: 0,001 degrees - Repeatability: ± 0,001 degrees - Accuracy across all positions: ± 0,002 degrees - Permissible torques on the clamped table: * Tangential torque: max. 7.000 Nm * Tilting moment: max. 16.000 Nm - Clamping forces: * on the table: 147.000 Nm * on the pallet: 84.600 Nm Working spindle / gear head - Tool holder to ISO 12164 (DIN 69893): HSK-A 100 - Diameter at front bearing: 100 mm - Drive power 100% duty cycle/60% duty cycle: 37/46 kW - Speed range: 25 – 10.000 rpm Feed / Feed force / Rapid traverse: - Feed range X/Y/Z axes: 1 – 60.000 mm/min - Feed force on X/Y/Z axes, 25% duty cycle: approx. 15.000 N - Rapid traverse speed, X/Y/Z axes: 60 m/min - Rapid traverse, rotary table: 30 rpm - Acceleration: approx. 6 m/s² - Ball screw (pitch): Ø 50 (30) mm Tool magazine for 4 magazine cassettes, including two additional magazine cassettes. Electrical - Rated power: 74 kVA Compressed air Coolant system, make: KNOLL The internal coolant supply can be switched to compressed air. Nodpfx Ajzviaijhfslf - Coolant pump 20–70 bar - Coolant tank, 2.500 l Machine layout - Space requirements, L x W x H: approx. 8 x 3.5 x 3.5 m - Weight: approx. 24 tons ACCESSORIES / EQUIPMENT: - Control system: Siemens SINUMERIK 840D ADDITIONAL EQUIPMENT FOR AUTOMATED MANUFACTURING PALLET STORAGE SYSTEM Technical data sheet with full details, including information on the wide range of features, available on request. No guarantee is given as to the completeness or accuracy of the technical specifications and specifications. – Subject to prior sale –

Condition: used, Year of construction: 2008, 3650 x 1560mm Matrix Table 4455mm x axis stroke [for routing] 1930mm y axis stroke [for routing] 250mm z axis stroke 150mm Max panel clearance X / Y Axes vectorial speeds 43m/min Z axis speed 15m/min Power 2000 Routing Unit 9 / 10hp for HSK63F toolholders. Speeds from 12000 to 18000rpm 250m3 / hr vacuum pump Telesolve long distance remote diagnostic system Fitted with following options Interpolating Z axis Centralised dust extraction system Pre-setting for angle driven heads TR10 Fixed 10 position toolchanger [ mounted on side of table ] R8 Rapid 8 position rotary toolchanger [ mounted on operating unit support beam ] 2 x Electronic detecting systems for panel height and tool length 3 x Additional rear stops Automatic centralised lubrication "PC Office" Console for easy movement around machine. Including Windows XP operating system 15" Colour monitor Keyboard CD Rom drive 40 Gbyte hard disk 128MB Ram Nsdezd Utwopfx Ahfslf Serial nr - AA2 / 000268? Year - 2008 CE Compliant Condition - Good

Condition: good (used), Year of construction: 2017, Multi-Sheet Machining For Maximum Output Automatic Loading System CNC Bandsawing, Routing & Drilling CNC Control Of The Bandsaw Movement +/- 90 Degrees The MZ Pluris is recognised as the machine of choice for all sofa and chair frame manufactures. The machine can work with OSB, Plywood, MDF, Chipboard (good quality), solid wood and also some composite materials. It has a number of key advantages over standard CNC nesting machines that include the possibility to stack multiple sheets high eg 5 x 12mm thick sheets, thanks to the use of the bandsaw sheet yield is much better, no vacuum is used so the machine is able to cut small shaped parts without difficulty and lastly cut parts are coming off on to the side discharge conveyor as the machine is still working, thus maximising machine output. Increased working capacity of 2550mm 1550mm Sheet size = 1220 x 2,440mm (8' x 4 ') and 1525 x 1525mm Standard equipment / features: CNC bandsaw specification - Maximum depth of curve 800mm - Minimum radius of cut 50mm - Maximum cutting height 100mm - Automatic angling of blade +/- 90 degrees - Blade size 5900 x 13mm - Automatic sawblade tensioning - Cast aluminium saw pulleys 900mm dia - Self braking motor 11kw CNC router specification: - Maximum working height / cutting depth 60mm - Electro spindle power S6 9KW - Variable rotation speed 7000 - 24000 rpm - HSK 63F tool holder Fence / grippers / supports: - Programmable pusher fence with 6 x pneumatic panel grippers - 8 x panel support arms General: - Automatic centralised lubrication system consisting of 3 x oil pumps - Internal conveyor belt for removal of dust / waste cuts - Free standing electrical control cabinet with PC and keyboard - Hand held remote control CNC vertical drilling unit: Nledpstqfv Isfx Ahfjf - Maximum drilling depth 70mm - 5 x independent drilling spindles in line. (Drills not included). - 1.7kw motor Plus package: - 5 position automatic tool changer - Automatic movement of clamps and support arms - set through the program Lifting table: - 4 screw - Capacity 2550 x 1525mm - Max load capacity 3000kg approx - Max panel pack height 700mm - PIT REQUIRED Year - 2017 CE Serial nr - 22/2017

Condition: excellent (used), Year of construction: 2004, Used Kia Model Kia Centre H63 Twin Pallet Horizontal Machining Centre with 60 Station ATC and Fanuc 18M Control. Serial Number KH630216. Year of Manufacture 2004. MACHINE CONSTRUCTION & FEATURES • One Piece Heavy Duty Cast Iron Bed Construction for High Accuracy & Rigidity • Heavy Duty Oil Cooled 2 Stepped Geared High Torque Spindle • Shuttle Type Pallet Changer • Pre-Tensioned Double Anchored Ballscrews • Fanuc 18M Control with 15 Inch Colour Screen • 20 Bar ‘Cool-Jet’ Through Spindle Coolant • Set of BT50 Toolholders • Filtermist FX5002 Mist Filtration • Frontal and Side Operators Platforms TABLE Table Size 630 X 630 MM Maximum Load Capacity 1,000 KGS Maximum Working Size Ø 1,120 X H 875 MM 0bwkk Minimum Index Angle 1° FEED X-Axis 950 MM Y-Axis 825 MM Z-Axis 760 MM Distance from Table Surface to Spindle Centre 175 ~ 935 MM Distance from Table Centre to Spindle Nose 0 ~825 MM Guide Type HARDENED & GROUND BOX GUIDEWAYS SPINDLE Spindle Taper NT #50 Spindle rpm 4,500 RPM Spindle Motor Output (Max/Cont.) 26.0 / 22.0 KW Spindle Torque (Max/Cont.) 1,267 / 1,071 NM Type 2 STEPPED GEARED HEADSTOCK FEED RATE Cutting Feed Rate X, Y and Z-Axis 5 M / MIN Rapid Feed Rate X, Y and Z-Axis 20 M / MIN ATC Number of Tools 60 Tool Type BT #50 Maximum Tool Diameter Ø 110 MM Max. Tool Diameter without Adjacent Tools Ø 245 MM Nlsdpfx Ahou A Ut Nofjf Maximum Tool Length 600 MM Maximum Tool Weight 20 KGS Tool Selection Method FIXED ADDRESS Tool Change Time – Tool to Tool 6 SEC Tool Change Time – Chip to Chip 11 SEC APC Number of Pallets 2 APC Type SHUTTLE TANK CAPACITY Coolant Tank 400 L POWER SUPPLY Electric Power Supply 36 KVA Voltage 415V / 3PH / 50HZ MACHINE Floor Space (L x W) 3,610 X 5,320 MM Height 3,140 MM Weight 14,000 KGS

Condition: used, Year of construction: 2020, controller manufacturer: Siemens, controller model: 840 Dsl - GROB4Pilot, _____ Description: Year of manuf. : 2020 Control : Siemens 840 Dsl - GROB4Pilot Speed : 16000 rpm Movement X/Y/Z : 1050/800/1050 mm Tool holder : HSK 63 In General: Year of manufacture:2020 Control system:Siemens 840 Dsl – GROB4Pilot Travel ranges X/Y/Z:1,050/800/1,050 mm Speed:16,000 rpm Tool holder:HSK 63 Fluid supply:coolant + blast air Spindle: Technology:Direct drive spindle Speed:16,000 rpm Nljdpfx Aszu H Afjhfsf Max. torque:206 Nm Max. power:32 kW Tool holder:HSK 63 NC rotary table: Technology:NC rotary table with pallet clamping system B-axis:0.001° Pallet size:630 x 800 mm (630 x 630 mm) Fluid connections:6 Tool magazin: Technology:4-disc magazine Number of stations:237 Tool changer:Pick-up Tool cleaning:Mechanical Equipment: Position measurement systems:Direct on all axes (glass scales) Chip removal:Chip conveyor Coolant supply:Internal coolant system, 80 bar Hydraulic clamping:4 clamping circuits, 30–190 bar Support control:Pneumatic Touch probe:Renishaw OMP 60 Tool measurement:Length measurement Set-up bay door:Can be operated automatically or manually Emulsion mist separator:Mechanical Pallets I:2 pieces 630 x 800 mm Pallets II:2 pieces 630 x 630 mm

Condition: used, machine/vehicle number: 008696, X axis working area: 7400 mm Y axis working area: 2250 mm Nedpfx Ajzrux Nshfelf Working Table: Flat table Main Electrospindle power: 15 KW Number of controlled axes: 5 axes Total number of tool changer positions: 30

Condition: used, machine/vehicle number: 007734, X axis working area: 3050 mm Y axis working area: 850 mm Main Electrospindle power: 5 KW Nsdpow Idb Hofx Ahfolf Total number of drilling spindles: 19

Condition: used, machine/vehicle number: 007289, X axis working area: 3200 mm Y axis working area: 900 mm Nlodpfjwukyqjx Ahfef Main Electrospindle power: 4.5 KW Number of controlled axes: 3 axes Total number of drilling spindles: 16

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, type of input current: three-phase, travel distance X-axis: 1,020 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 510 mm, workpiece weight (max.): 800 kg, number of slots in tool magazine: 30, controller manufacturer: Fanuc, total height: 2,700 mm, total length: 4,080 mm, total width: 2,400 mm, overall weight: 7,000 kg, table length: 1,200 mm, table width: 510 mm, controller model: Oi-MC, coolant supply: 15 bar, spindle motor power: 15,000 W, number of spindles: 1, rapid traverse Z-axis: 30 m/min, rapid traverse X-axis: 36 m/min, rapid traverse Y-axis: 36 m/min, spindle nose: BT40, spindle speed (max.): 12,000 rpm, table load: 800 kg, Equipment: chip conveyor, rotational speed infinitely variable, Doosan NM510 Vertical Machining Centre Machine Type: 3 Axis Vertical Machining Centre Year: 2008 Control: Fanuc Series Oi-MC Condition: Very Good Includes Swarf Conveyor Njdpfxev Iq Ezs Ahfjlf Chiller MCF20 Coolant Filter Autolube 6 x Tool Holders Notes Vice and clamping block in photos not included Technical Specifications Table Size: 1200 x 510mm Table Load: 800kg Travel (X-Axis): 1020mm Travel (Y-Axis): 510mm Travel (Z-Axis): 510mm Max Spindle Speed: 12,000rpm Spindle Power: 18.5/15/11kW Spindle Taper: BT 40 Rapid Traverse (X/Y/Z): 36/36/30m/min Tool Storage Capacity: 30 tools Tool Change Time (T-T/C-C): 1.7/3.5sec Machine Dimensions: 4080 x 2400 x 2700mm Machine Weight: 7,000kg Notes: *Specifications are given in good faith but not guaranteed*

Condition: used, Year of construction: 2007, total height: 2,800 mm, total length: 3,000 mm, total width: 2,500 mm, overall weight: 8,300 kg, Mikron HSM 800 – High Speed Machining Center Year 2007 | Heidenhain iTNC 530 | 24,000 rpm | 3-pallet changer High-precision CNC machining center from Mikron / GF AgieCharmilles, designed for demanding HSC applications such as mold & die, graphite and electrode machining, as well as flexible production. Travels: X 800 mm / Y 600 mm / Z 500 mm with pallet size 800 x 600 mm. Equipped with a 3-pallet changer for efficient automated operation. The machine features a high-speed spindle up to 24,000 rpm with HSK-A63 interface and a 50-position tool magazine. Well equipped with high-pressure through-spindle coolant (18–70 bar) including band filter system, chip conveyor, minimum quantity lubrication, oil mist extraction, rotating viewing window and probing system (M&H). Additional features include APS (Advanced Process System) and ITC (Intelligent Thermal Control) for maximum process stability and thermal accuracy. Control: Heidenhain iTNC 530 Spindle speed: 24000 - rpm Travel Y-axis: 600 - mm Dimensions of the clamping surface: 900 x 600 mm Travel Z-axis: 500 - mm Njdey Tkc Ajpfx Ahfjlf Travel X-axis: 800 - mm Dimensions (LxWxH) approx.: 3000 x 2500 x 2800 mm Weight approx.: 8,300 kg Year of construction: 2,007 Condition: in working order Terms of payment: 100% prepayment before pick-up Terms of delivery: From foundation under power: Yes

Year of construction: 2006, condition: ready for operation (used), Travels X/Y/Z: 885mm/600mm/600mm, travels B/C: -10° - 110°/360°, rapid traverse X/Y/Z: 9000mm/min, speed: 28000rpm. Table dimensions X/Y: 950mm/650mm, operating hours: 90711h, spindle hours: 19457h. Including workpiece measuring probe, tool changer with 100 places. Nlodpeta H S Ssfx Ahfsf

Year of construction: 1998, condition: ready for operation (used), An angular system for Weinig window and door production is available. Max. tool outside diameter: 320mm, max. tool flight circle: 232mm, slotted spindle length: 640mm, profiling and synchronized spindle length: 285mm-320mm, control: Siemens WS400. Including complete tooling and style window. Documentation available. Nodpfx Ahjtq U A Iefslf

Condition: ready for operation (used), Year of construction: 1999, Offered is a travelling column machining center: rotary table: 1500mm, travels X/Y/Z: 1600mm/800mm/800mm, tool holder: SK50, spindle drive: 60kW, speed range: 20 to 6000rpm, tool changer: 30 positions, machine weight approx. 19200kg, machine dimensions X/Y/Z approx. 6000mm/4000mm/3200mm. Incl.: internal coolant supply, chip conveyor, chip flushing system, approx. 60 pieces SK50 tool holders, 3-jaw chuck. Inspection possible by arrangement. Nledpfjylbqysx Ahfjf

Condition: ready for operation (used), Year of construction: 2010, Workpiece diameter: 500mm, workpiece height: 730mm, travel X/Y/Z: 630mm/765mm/600mm, A-axis: -120°/+30°, C-axis: +/-360°, max. table load: 500kg, spindle interface: HSK-A63, speed: 18000rpm, rapid traverse: 52m/min, feed rate: 52m/min, rotary table diameter: 610mm, tool positions: 30, control: Mazak Mazatrol Matrix. Documentation available. An on-site inspection is possible. The machine is located in China. Nljdpfxox Aunxj Ahfsf

Condition: ready for operation (used), Year of construction: 2008, operating hours: 9,965 h, - USED - 3-AXIS VERTICAL MACHINING CENTRE WITH ROTO-PALLET X-AXIS TRAVEL: 560 mm Y-AXIS TRAVEL: 400 mm Z-AXIS TRAVEL: 570 mm DISTANCE SPINDLE NOSE-TABLE: 210 - 780 mm RAPID FEEDS X-Y-Z: 40 - 40 - 32 m/min SPINDLE: 80-10000 rpm; 15-18,5 kW; ISO 40 - BT PALLET: N.2 ; 712X475 mm MAX ADMITTED LOAD: 300X2 Kg Nodpfx Ahoq Nqkxofjlf HIGH PRESSURE COOLANT: 15 Bar TOOL MAGAZINE: CHAIN-TYPE ; 32 POS MAX TOOL DIAMETER: 90(150) mm MAX TOOL LENGHT: 300 mm MAX TOOL WEIGHT: 8 Kg CONTROL UNIT: FANUC 21i - MB WEIGHT: 7600 Kg OVERALL DIMENSIONS: 3010 x 3450 x 3145 mm

Condition: ready for operation (used), Year of construction: 2008, - USED - 5-AXIS BRIDGE-TYPE VERTICAL MACHINING CENTRE     X-AXIS TRAVEL: 1750 mm Y-AXIS TRAVEL: 1400 mm Z-AXIS TRAVEL: 600 mm RAPID FEEDS X-Y-Z: 35 m/min SPINDLE: 18000 rpm; 18,5-25 kW; HSK A63 TABLE SIZE: 1000 x 1200 mm MAX ADMITTED LOAD: 5000 Kg Nodpfewl R Ddex Ahfjlf TOOL MAGAZINE: A CATENA ; 30 POS HEAD: A/B AXIS AUTOMATIC CONTROL UNIT: HEIDENHAIN iTNC 530 WEIGHT: 18000 Kg OVERALL DIMENSIONS: 6000 x 4000 x 3850 mm ACCESSORIES: SWARF CONVEYOR ; LASER TOOL SETTER ; PORTABLE HANDWHEEL

Condition: ready for operation (used), Year of construction: 2021, - USED - 3-AXIS BRIDGE-TYPE VERTICAL MACHINING CENTRE       X-AXIS TRAVEL: 3000 mm Y-AXIS TRAVEL: 2000 mm Z-AXIS TRAVEL: 1000 mm DISTANCE SPINDLE NOSE-TABLE: 350 - 1350 mm RAPID FEEDS X-Y-Z: 20 - 18 - 16 m/min SPINDLE: 6000 rpm; 30 kW; ISO 50 - DIN TABLE SIZE: 3000 x 1800 mm MAX ADMITTED LOAD: 10000 Kg HIGH PRESSURE COOLANT: 25 Bar TOOL MAGAZINE: CHAIN-TYPE ; 60 POS MAX TOOL DIAMETER: 125 mm MAX TOOL WEIGHT: 20 Kg CONTROL UNIT: HEIDENHAIN TNC 640 WEIGHT: 32706 Kg ACCESSORIES: SWARF CONVEYOR ; PAPER FILTER ; MAGNETIC FILTER ; TOOL SETTER ; LINEAR SCALES ; TOUCH PROBE ; PORTABLE HANDWHEEL NOTE: MECHANICAL GEAR BOX Nlodpfszbnriex Ahfsf