Used Inserting Machine P1S-5 for sale (98,265)

Condition: good (used), Code: 0359 Brand: MASTERWOOD Model: TEKNOMAT 2000-P - CE Standard Electronic anuba inserting machine with 2 controlled axis for inserting anuba hinges – CE Standard Technical specifications: Working stroke length 3100 mm – Displacement speed 72 mt/min Working stroke height 350 mm – Displacement speed 15 mt/min Working stroke depth 150 mm - Displacement speed 15 mt/min Working table mm 150 x 3800 N° 2 rear stops with manual positioning N° 4 rear bracket-type clamps with reference stops Side stops with manual positioning 1 right - 1 left 2 pneumatic front clamps Anuba unit with double magazine for male female anuba hinges - Diameter 14 mm Tilting head - 7 + 90° Double stem anuba screw device Front fences on machine table for machining of assembled doors and windows Control CNC 2: Microprocessor control unit – Digital display – Multitasking operating system – Programming of manual and automatic anuba inserting – Inserting of single, anuba – Step by step execution Installed electrical power 7,62 Kw Compressed air 6-7 atm Machine Overall dimensions m 4400 x 1600 x 1600 h Weight kg 1650 Electrical cabinet overall dimensions mm 1050 x 550 x 1100 h Weight kg 390 Iijdpfx Agey Eg T Us Ujc

Condition: good (used), Code: 0072 Brand: T.O.P. ITALIA Iijdpfx Asyv Inzeg Uoc Model: FS 850 - CE Standard Drilling and inserting gluing machine + dowel pins on horizontal workpieces for furniture, custom-made furniture, kitchens, bathroom furniture - CE Standard - Year 2018 Technical data: Maxworkable length mm 1600 Max workable height 850 Panel thickness mm 8 - 50 Independent drilling aggregate: Rotation speed 6000-18000 rpm - Max drilling depth mm 35 - Drilling depth adjustment - Hole cleaning system Glue + dowel insertion unit: Dowel dimensions mm 8 x 30 - Max dowel protrusion 15 mm Glue and water system: Container for automatic glue feeding and system cleaning Feeder for automatic pin loading Numerical control and operator interface: Albatros numerical control for 4-axis control - Touch screen supervisor PC - Monitor 12" TFT - Windows operating system - Parametric CAD 3D TPAEdi32 Compressed air 6 bar Overall dimensions mm 1800 x 1900 x 2100 h Weight kg 500

Condition: used, Year of construction: 1997, machine/vehicle number: 11730, CNC control HEIDENHAIN, travel: X-axis 800 mm x Y-axis 600 mm x Z-axis 500 mm, swiveling range A-axis +20/-90 degrees, C-axis 360 degrees, max. spindle speed 18,000 rpm, automatic tool changer with 30 tool positions, rapid traverse 35 m/min, machine weight 7,000 kg, chip conveyor. Iedpfsy Sqglex Ag Uoic

Year of construction: 1997, condition: ready for operation (used), Offered is an automatic fitting drilling machine. Workpiece size L: 100-1350mm, W: 100-600mm, d: 16-25mm, operating pressure: 6-7bar, extraction air speed: 30m/s, extraction volume flow: 70m³/min, working height: 1000mm, traverse speed X-axis: 60m/min, traverse speed Y-axis: 50m/min, control system: Ferrocontrol CNC. Equipped with vibratory feeder for hinges, spiral vibratory feeder for buffers, drilling and insertion units, light barrier monitoring. Weight: approx. 6000kg, overall dimensions X/Y/Z: approx. 5500mm/2200mm/2400mm. Inspection possible by arrangement. Ijdpjy Ulmfofx Ag Usic

Year of construction: 1999, condition: ready for operation (used), Offered is a CNC-controlled drilling and insertion machine. Workpiece size max.: 1350mm x 600mm x 25mm, operating pressure: 6-7bar, extraction speed: 32m/s, working height: 1000mm, control system: Ferrocontrol. Equipped with two-station machine for alternating loading, feed system for workpieces, vibratory feeder with sound-insulating hood for hinges, drilling and insertion unit, control cabinet, extraction collector. Weight: approx. 6000kg, overall dimensions X/Y/Z: approx. 6240mm/4500mm/2200mm. Inspection possible by arrangement. Isdpfsy Ull Ujx Ag Usic

Condition: good (used), Year of construction: 2017, Main spindle changed 2025. Technical details shown on photo. Parts shown by hand not come. Isdpfxsy S U Tco Ag Ujic

Condition: excellent (used), Year of construction: 2006, Heller MCH 280 C 5 axes Iijdpfx Agsy Nybgo Ujc Year of manufacture: 2006 Control: Siemens 840 D Spindle speed: 8000 rpm Travel paths X: 1000 mm Y: 1200 mm Z: 1100 mm Pallet size: 630 x 630 mm Rotary table: 360,000° x 0.001° Tool magazine positions: 400 Interface: HSK 100

Condition: good (used), Year of construction: 2015, Table size 320mm, Traverses X Y Z 400 x 560 x 400mm, A axis +120/-30 degrees, C axis 360 degrees, Spindle speed 12,000 rpm, spindle taper BT40 Iodpoyt Hd Iefx Ag Usic 24 station ATC, Siemens 828 control, swarf conveyor

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 - 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 Isdex Hllxepfx Ag Uoic Location: Röllbach

Condition: good (used), Year of construction: 2007, Year of manufacture: 2007 Spindle hours approx. 14,000 (replaced 11/2017) Drive operating hours approx. 68,500 Traverse paths: 850x700x500 mm Rapid traverse: 45 m/min Speed: 18,000 rpm HSK 63 Tool changer with 38 stations Laser tool measurement/breakage monitoring NC tilting rotary table D=420 mm Control: Siemens 840D Internal coolant supply 80 bar Paper band filter Chip conveyor Electronic handwheel module Oil mist extraction Chip flushing gun Ijdpfsy Er Uksx Ag Usic Thermal compensation Heidenhain probing system

Year of construction: 2016, condition: good (used), ZFX – 5-axis dental milling machine, Year of manufacture: 2016, Iodjy S Symspfx Ag Ujic Machine has 1266 spindle hours, Control system: Beckhoff, New spindle installed 3 years ago, Machine has a maintenance contract with the manufacturer, Collet diameter: 4 mm, Compact design: 220 kg monoblock metal casting for maximum stability and optimal milling performance. 5-axis simultaneous machining, A and B axes with servo motors. Dry and wet machining (extraction system and pump-filter system fully integrated!) Speed range: 6,000 rpm to 60,000 rpm (4-shank) Automatic tool changer for up to 28 tools Tool breakage detection and automatic length measurement Sister tool management Maximum tool length: 40 mm Travel range (x, y, z axis): 180 x 190 x 110 mm Rotary axis: 360° (continuous) Swivel axis: -30° to +120°

Condition: good (used), Year of construction: 2015, Table size 950 x 800mm , table load 1,000 kgs, Iiedpfx Agsyqxduo Uec Traverses X Y Z 1,000 x 900 x 700mm, B axis -5/+110 degrees, C axis 360 degrees Rapid feedrates 80m/min, 60 station toolchanger, spindle taper HSK 63, spindle speed 18,000rpm, Heidenhain TNC 530 control, swarf conveyor, Through Spindle Coolant

Year of construction: 1995, condition: ready for operation (used), Rated current: 22A, connected load: 15kVA, with extensive accessories, the machine is fully functional. An on-site inspection is possible. Iodpfx Aey Tx Sxog Ujic

Condition: good (used), Year of construction: 2004, functionality: fully functional, machine/vehicle number: 200145, 2004 Buhrs BB300 Envelope Insertion Machine (with Intelmail VAF front end) Sr Nr: 200145 8 Station model currently running 6 AT25 rotary feeders with an MTS Sure-feed SE1200 PS/PC in the position of the last 2 hoppers. Spare AT25 rotary feeder & AS25 Shuttle feeder. Intelmail VAF front end fully integrated by Intelmail at supply in 2004. Buhrs specification: Envelope format: Standard envelopes with window min. C6 - 114 x 162 mm / 4 1/8 x 9 1/2 inch (No.10) DL-110x220mm max.B4 - 250 x 353 mm / 9 ¾ x 13 ½ inch flap length: max.: 55mm / 2 ¼ inch, min.: 20 mm / ¾ inch Paper quality (envelope): min. 75 gsm, max. 110 gsm Thickness of supplement material: max. 9 mm, / 3/8 inch Supply conveyor: min. 150mm / 6 inch, max. 330 mm / 13 ½ inch Paper quality (supplement material): min. 70 gsm VAF specification: Power requirements Voltage 110 - 240 volts A.C. Frequency 50 - 60 Hz Phase Single Power 200 Watts Thermal 170 Joules/s Iedpfx Agjyfwgde Usic Physical Dimensions (Approx) - Length 1650 mm - Width 530 mm - Height 1200 mm - Weight 140 kg (308 lbs) General Sound Level 72 dBA Fold Unit - Letter fold sets: Up to 8 pages 85 gsm, [22lb]; Half fold sets: Up to 12 pages 85 gsm, [22lb] Paper Size range 145 x 180 mm to 296 x 420 mm Feed and Read Rate 50,000 + sheets per hour. [A4 sheets] Form sizes / A4 up to A4 [and A3 half folded] Paper Weights 60 - 200 gsm

Condition: excellent (used), Year of construction: 2011, operating hours: 9,000 h, functionality: fully functional, machine/vehicle number: 5921, type of input current: three-phase, input voltage: 2,800 V, pressure: 6 bar, input current: 41 A, feed length X-axis: 4,300 mm, feed length Y-axis: 2,300 mm, feed length Z-axis: 1,200 mm, total height: 4,310 mm, total length: 7,310 mm, total width: 7,130 mm, input frequency: 50 Hz, We offer this excellent 5-axis CNC machining center, the CMS SINTESY 4323 MPT, designed for trimming plastic and laminate parts, manufactured in 2011. Manufacturer: CMS S.p.A. Model: SINTESY 4323 MPT Year of manufacture: 2011 5 interpolated axes Linear axes: X-4300, Y-2300, Z-1200 Rotary axes: B +/- 120 deg, C +/- 240 deg Electrospindle: 7.5 kW Installed power: 28 kW Compressed air consumption: 400 nl/min Tool magazine: 12 positions Extendable tables Iijdpozcpkcofx Ag Uec Dustproof cabin – enclosed machine design. If you have any questions or require further information, please do not hesitate to send us a message or contact us by phone.

Condition: ready for operation (used), Year of construction: 2007, operating hours: 17,000 h, functionality: fully functional, travel distance X-axis: 2,200 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 720 mm, rapid traverse X-axis: 100 m/min, rapid traverse Y-axis: 50 m/min, rapid traverse Z-axis: 50 m/min, controller manufacturer: HEIDENHAIN, controller model: I TNC 530, spindle speed (max.): 18,000 rpm, operating hours of spindle: 17,000 h, spindle nose: BT 40, number of slots in tool magazine: 60, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, 5-axis continuous mobile gantry vertical machining center, with rotary table (capable of both horizontal and vertical mounting) with a diameter of 550mm. Possibility of pendulum machining (pallet changer type) with dedicated partition. Equipped with BLUM laser control NT tool presetting. Wireless part probe HEIDENHAIN TS 642. Belt-type chip conveyor. High-pressure through-spindle cooling with paper filter. Spindle chiller. Remote HEIDENHAIN handwheel. Ijdpfxjy Diabe Ag Uoic

Condition: excellent (used), Year of construction: 2004, operating hours: 7,987 h, functionality: fully functional, travel distance X-axis: 1,120 mm, travel distance Y-axis: 610 mm, travel distance Z-axis: 460 mm, rapid traverse X-axis: 48 m/min, rapid traverse Y-axis: 48 m/min, rapid traverse Z-axis: 36 m/min, controller manufacturer: FANUC, controller model: 160 is-MB, table width: 500 mm, table length: 500 mm, table load: 400 kg, spindle speed (max.): 12,000 rpm, operating hours of spindle: 7,979 h, spindle motor power: 22,000 W, spindle nose: SK 40, number of slots in tool magazine: 30, input voltage: 380 V, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Japanese-built high-speed machining center with full 5-axis simultaneous capability, in excellent condition with 29,000 power-on hours and only 7,900 spindle hours (as the spindle was overhauled by the manufacturer a few years ago), complete with: remote electronic handwheel; high-pressure through-spindle coolant; chip conveyor; random tool changer; laser tool inspection system; RENISHAW MP 10 wireless part probe; FANUC high-speed package; network interface; serial interface; memory card. Ijdpfx Agex H Tx He Usic

Condition: used, Year of construction: 2000, functionality: fully functional, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, controller manufacturer: HEIDENHAIN, controller model: 460, rotational speed (max.): 15,000 rpm, spindle nose: HSK 63A, number of slots in tool magazine: 30, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Used HERMLE C800U high-speed 5-axis continuous vertical machining center; this is a medium-sized CNC machine equipped with a gantry granite structure, weighing 8,200 kg. Axis travels: X 800 mm, Y 500 mm, Z 600 mm, with a 5-axis table featuring a 280 mm diameter platter. Iodpsxryfzefx Ag Uoic Year of manufacture: 2000, fitted with HEIDENHAIN TNC 430, HSK 63A spindle at 15,000 rpm (max 19 kW) cooled by a dedicated chiller, 30-position pick-up type tool changer, and remote electronic handwheel. The equipment is completed by a KNOLL chip conveyor, high-pressure through-spindle coolant, and a RENISHAW MP10 wireless 3D workpiece probe.

Condition: used, Year of construction: 2018, functionality: fully functional, travel distance X-axis: 1,520 mm, travel distance Y-axis: 520 mm, travel distance Z-axis: 460 mm, rapid traverse X-axis: 32 m/min, rapid traverse Y-axis: 32 m/min, rapid traverse Z-axis: 32 m/min, controller manufacturer: SIEMENS, controller model: 840D, rotational speed (max.): 12,000 rpm, overall weight: 10,000 kg, spindle speed (max.): 12,000 rpm, spindle nose: ISO 40, number of slots in tool magazine: 32, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Year: 2018, CE compliant Iiedoy Azclspfx Ag Usc CNC: SIEMENS 840D with SHOP MILL 4+1 axes ONLY 18,300 power-on hours Worktable dimensions: 2-piece table - fixed 920x540 mm / rotary-tilting 650x500 mm (with extension ring) Longitudinal X-axis travel: 1520 mm Transversal Y-axis travel: 520 mm Vertical Z-axis travel: 420 mm Spindle taper type: ISO 40 Spindle speed: 12,000 rpm Automatic tool changer: 32 positions Spindle motor power: 15 kW Approximate net weight: 10,000 kg Accessories: Internal coolant Chip conveyor Full upper enclosure Pneumatic door opening BLUM tool presetting and workpiece probe capability

Condition: new, Year of construction: 2025, Ref. -No.: 10464 Manufacturer: IGREK Type: 3500 XXL Year of construction: 2025 Type of control: CNC-Steuerung Control: Siemens 840 D / Heidenhain iTNC 640 Storage location: Istanbul Country of origin: Türkiye X-Travel: 10500 mm Y-Travel: 3500 mm Z-Travel: 1400 mm A-Axis: +/- 115 ° B-Axis: 360 ° Max. Torque: 235 Nm Rapid Traverse X/Y/Z: 30 m / min Drive power spindle: 54 kW Table load max.: 4000 kg Tool Taper: HSK-A100 Spindle Speeds: 12500 RPM Machine length: 16000 mm Machine width: 7400 mm Isdpfx Agjxc Tr Ao Uoic Machine Height: 8500 mm Weight: 195 t Further information: GREK 3500 XXL – Customized precision for large-scale projects The IGREK 3500 XXL is a CNC 5-axis portal milling machine of the latest generation, developed for the high-precision machining of large components. Built in 2024, it is ready for immediate use and equipped with the latest technology to meet the most demanding requirements in heavy industry and mechanical engineering. Key features: Gigantic machining areas: With travel distances of 10,500 mm (X), 3,500 mm (Y) and 1,400 mm (Z), the machine offers extraordinary flexibility for machining large parts. 5-axis simultaneous machining: The A-axis with +/- 115° and the B-axis with 360° guarantee maximum precision and versatility when machining complex workpieces. Powerful spindle: Equipped with a speed of up to 12,500 rpm, a maximum torque of 235 Nm and a drive power of 54 kW – ideal for high-performance machining. Robust and durable: Weighing 195 tons and with a table load of up to 4,000 kg, the machine is designed for heavy-duty machining. Innovative tool holding fixture: The HSK-A100 tool holding fixture enables quick tool changes and increases efficiency. Speed and efficiency: Rapid feed rates of 30 m/min on all axes ensure maximum productivity. Technical data at a glance: Traverse paths: X 10,500 mm / Y 3,500 mm / Z 1,400 mm Spindle power: 54 kW Spindle speed: 12,500 rpm Table load: up to 4,000 kg Machine dimensions (LxWxH): 16,000 x 7,400 x 8,500 mm Weight: 195 tons Additional benefits: The machine is supplied with the advanced Siemens 840D or Heidenhain iTNC 640 control system and offers worldwide warranty and service support from the manufacturer. Choose the IGREK 3500 XXL for precision and efficiency in the machining of large parts. Contact us now for a non-binding offer!

Condition: good (used), Year of construction: 2005, Ref. -No.: 10627 Manufacturer: AUERBACH Type: IA 5B 3200 RT Year of construction: 2005 Type of control: CNC Control: Heidenhain 530 Storage location: Halbrstadt Iedpfx Asy Ed R Dog Uoic Country of origin: Germany X-Travel: 3200 mm Y-Travel: 2000 mm Z-Travel: 1600 mm B-Axis: 360 ° C-Axis: 360 ° Spindle Taper: SK 50 Rotary Table (Lxw): 2500 x 2000 mm Table Load: 20.000 kg Tool Piece Magazine With: 100 Pcs./pcs. Operating hours: 75.377 H Spindle hours: 28.246 H Machine length: 7300 mm Machine width: 7700 mm Machine Height: 4350 mm Weight Of The Machine Ca.: 28 t Further information: - with H / V head Machine can be viewed under power by arrangement

Condition: good (used), Year of construction: 2010, Ref. -No.: 10530 Manufacturer: DöRRIES - SCHARMANN Type: Alpha 1000 Year of construction: 2010 Type of control: CNC Control: Siemens SINUMERIK 840 D Storage location: Halberstadt Country of origin: Deutschland X-Travel: 2000 mm Y-Travel: 2000 mm Z-Travel: 2000 mm A-Axis: 0 - 90 x 0,001 ° B-Axis: 360 x 0,001 ° Number of T-slots: 1 + 8 Max. Workpiece Weight: 5000 kg T - groove width: 22 mm Iisdpsy Ed Ehofx Ag Uec T - slot spacing: 100 mm T-Slots: DIN 650 mm Tool Taper: HSK - A 100 Tool Piece Magazine With: 207 + 10 Pcs./pcs. Max. Torque: 1250 Nm Feed Speeds X/Y/Z Axis: 1 - 30000 mm / min Rapid Travel X/Y/Z: 30,00 mm / min Drive Capacity - Spindle Motor: 45 kW Total Power Requirement: 100 kW Dimensions Of The Machine Ca.: 13 x 8 x 4,5 m Size Of Pallet: 2 x 1000 x 1000 mm Spindle speed gear stage 1: 1 - 1096 1 / min Spindle speed gear stage 2: 1096 - 6000 1 / min Further information: - Measuring probe - Chip conveyor - Coolant system - Coolant through the spindle - Pallets with 5-way media connection and clamping hydraulics - Extraction system - Swivel spindle A-axis 0 - 90 - NC rotary table B-axis

Condition: used, Year of construction: 2010, travel -x axis 1.000 mm travel -y axis 510 mm travel -z axis 480 mm travel of - x axis (rotary-tilting table) 420 mm travel - x axis (fixed machine table) 450 mm control HEIDENHAIN iTNC 530 turning speed range 50 - 12.000 U/min numbers of positions in the tool changer 20 tool taper SK40 table surface area 650 x 510 mm Iiedpfxox R U Rxj Ag Uoc workpiece weight 300 kg Clamping surface of rotary-tilting table 420 mm workpiece weight 200 kg speeds of rotary table 30 U/min 5-axis machining center | HEDELIUS - RS505 K IC 40/530/450/420/12, equipped with tool changer, ITC, zero-point clamping system and chip conveyor. In addition, the machine features a full enclosure and an extraction system with filter unit. With only 9,787 spindle hours, the unit shows low operating time. The machine is in a well-maintained condition and can be inspected at any time under power. A machine video can be provided on request. Please refer to the offer attachment for further technical details. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: RS505 K IC 40 | RS-505 | RS 505

Year of construction: 2013, condition: used, overall weight: 15,500 kg, total length: 4,000 mm, total width: 2,250 mm, total height: 2,810 mm, spindle motor power: 29,000 W, ALZMETALL GS 1000/5-T CNC 5-axis machining center stable gantry design equipped with NC rotary tilting table and torque motors for backlash-free and highly dynamic direct drives in A and C axis simultaneous 5-axis machining possible equipped with 3D interpolation look-ahead TCPM and free contour programming water-cooled high-frequency motor spindle with thermal compensation (Therm-Ex) and air blow through spindle high-pressure coolant system extensive coolant equipment with band filter high-pressure pump and chip conveyor oil mist extraction system (LTA) integrated measuring systems with 3D probe (M&H) and laser tool measurement (Blum) collision monitoring (DCM) pick-up tool changer system automatic central lubrication LED working area lighting full enclosure Weight approx.: 15,500 kg Travel Z-axis: 600 - mm 5-axis machining: Yes Travel X-axis: 800 - mm Dimensions (LxWxH) approx.: 4000 x 2250 x 2810 mm Spindle performance: 29 kW Movement A-axis: 0 - 140 ° Spindle speed: 12000 - rpm NC rotary table: Yes Travel Y-axis: 800 - mm Number of tool locations: 33 Control: Heidenhain iTNC 530 Movement C-axis: 360 - ° Dimensions of the clamping surface: 800 x 630 mm Year of construction: 2,013 Condition: in working order Terms of payment: 100% prepayment before pick-up Iijdpfsy Th U Nex Ag Usc Terms of delivery: From foundation under power: Yes

Condition: ready for operation (used), Year of construction: 2010, operating hours: 17,250 h, functionality: fully functional, travel distance X-axis: 710 mm, travel distance Y-axis: 520 mm, travel distance Z-axis: 520 mm, controller model: Heidenhain Mill Plus, spindle speed (max.): 18,000 rpm, In 2015, a new spindle was installed! TECHNICAL DETAILS Travel range X-axis: 710 mm Travel range Y-axis: 520 mm Travel range Z-axis: 520 mm Maximum spindle speed: 18,000 RPM Number of tool magazine slots: 30 Tool holder: SK40 Iijdpoy Thlnefx Ag Uec Distance between T-slots: 63 mm Rotational speed of the 4th axis max.: 40 RPM Rotational speed of the 5th axis max.: 40 RPM 4th axis swivel range: 360 x 0.001 degrees 5th axis swivel range: 0 ± 102 x 0.001 degrees MACHINE DETAILS Control system model: Heidenhain - Mill Plus Operating hours: currently 36,500 hours Spindle hours: currently 17,250 hours EQUIPMENT Programmable coolant nozzles Coolant gun Chip conveyor 40 bar internal coolant system with 600 l paper filter system Measuring probe 3D Quickset Laser tool measurement Visiport Handwheel Signal light Operating mode 4