Deckel Fp 4 Ma nakup rabljenega (697)

Stanje: rabljeno, številka stroja/vozila: 2819-0517, x-axis travel: 300 mm y-axis travel: 300 mm z-axis travel: 400 mm (340 mm with apron) Clamping surface: 390 x 620 mm / chip tray Spindle speed: 40–2500 rpm Feed range: 0.2–3600 mm/min Rapid traverse: 4.0 m/min Control: Contour 3 – 3D Path Control System Spindle taper: SK40 Hjdpfxjcxxp To Ab Sew Quill stroke: 60 mm Swiveling head +/-: 90° Spindle drive motor: 2.0 kW Total power requirement: 1.6 / 2.0 kW Machine weight approx.: 1.3 t Space requirement approx.: 1.8 x 1.8 x 1.8 m Universal milling machines from Deckel have proven themselves for decades in mold, tool, and machine construction. CNC-controlled tool milling machine with Contour 3 control, vertical head swivels +/- 90° with 60 mm quill stroke, horizontal spindle, feeds and rapid traverse on 3 axes, hydraulic tool clamping, automatic central lubrication, coolant system, emergency stop button, chip guard enclosure with chip tray, separate control cabinet. The machine is in good condition.

Stanje: rabljeno, Leto izdelave: 1978, X-travel 300 mm y-travel 160 mm z-travel 340 mm Clamping surface of table 600 x 210 mm Spindle taper SK 40 Spindle speeds 40 - 2000 rpm Feeds 5 - 500 mm/min Rapid traverse 1.2 m/min Hodpfx Aswl N R Njb Ssw Total power requirement 1.9 kW Machine weight approx. 0.7 t - Machine from training workshop - Accessories: fixed table, vertical head with extendable quill, digital readout on 3 axes HEIDENHAIN, counter bearing, various short and long milling arbors, various collets, original DECKEL tool cabinet

Leto izdelave: 1968, Stanje: rabljeno, Deckel Milling Machine FP1 with 3-axis digital readout 380V Machine no. 37729 120–1900 rpm Travel X-axis: 300 mm Travel Y-axis: 150 mm Travel Z-axis: 340 mm Tool holder: MK 4 with drawbar thread S 20 x 2 Milling head type: Vertical milling head Table type: Fixed table Clamping surface: 600 x 210 mm T-slot size: 12 mm Hjdpfxspmrpxe Ab Ssw Feed X-axis: 290 mm Feed Y-axis: 150 mm Feed Z-axis: 330 mm Weight: 700 kg Deckel Milling Machine FP1 ID: M100000409

Stanje: dober (rabljeno), 1 used universal tool milling machine Make: Deckel Model: FP 1 Year of manufacture: 1982 Technical specifications: X-axis travel: 300 mm Y-axis travel: 160 mm Z-axis travel: 340 mm Spindle taper: SK 40 Table size: 600 x 210 mm Spindle speeds: 40–2000 rpm Machine weight approx.: 1 t Space requirement approx.: 1.6 x 1.3 x 1.8 m Hjdpfx Abern I Rzj Sew

Stanje: dober (rabljeno), Leto izdelave: 1990, 1 used, well-maintained CNC-controlled tool milling machine in travelling column design with GRUNDIG Dialog 11 CNC path control Table size 1600 x 675 mm Tool holder SK / ISO 40 Travel paths X-axis, longitudinal 1200 mm Y-axis, cross 600 mm Z-axis, vertical 500 mm Table load 2000 kg Spindle speed range 20 – 6300 rpm Feed range, stepless 2 – 10,000 mm/min Rapid traverse on all axes 10 m/min Quill stroke 80 mm Drive power 100% duty cycle 7.5 kW 40% duty cycle 12 kW Machine dimensions (L x W x H) 3600 x 3000 x 2300 mm Machine weight 6800 kg Control cabinet dimensions (L x W x H) 1700 x 900 x 1750 mm Control cabinet weight 470 kg Hodjhhuf Hjpfx Ab Ssw Accessories / Special features: • CNC tool milling machine suitable for toolmaking, jig & fixture construction, training, as well as mold making • GRUNDIG Dialog 11 CNC path control • Screen graphics, dialog-guided input, 3D linear interpolation, circular interpolation, helical interpolation, polar coordinate input, numerous drilling and milling cycles, graphical cycle input support, “contour pocket” milling cycles for the automatic clearance milling of irregular pockets including with islands, shifting and rotating the coordinate system • Electronic handwheel • RS 232 interface • Swiveling vertical milling head +/- 90° • Hydraulic tool clamping, DIN 2080 with clamping groove, Ott system • Adjustable quill, 80 mm • Horizontal milling device • Fully enclosed safety cabin • Ball screws in all 3 axes • Coolant system • Lighting Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 D - 44143 Dortmund - Wambel

Stanje: dober (rabljeno), Friedrich Deckel FP 2 LB Tool Milling Machine Accessories are not included in the scope of delivery, but can be purchased separately. The Deckel FP 2 LB universal milling machine is characterized by its extremely robust base and is designed as a travelling column machine. This means that the machine maintains its precision even when machining heavy workpieces weighing up to 1000 kg. Another feature is the 45-degree slant bed. After removing the universal table, this design allows direct clamping and machining of V-engine blocks with a 90-degree cylinder angle, such as American V8 engines. The long travel distance of 800 mm is also an advantage in this application. Technical Data: Deckel Universal Milling Machine FP 2 LB Digital readout: 3-axis Heidenhain digital display Travel X-axis: 800 mm Travel Y-axis: 300 mm Travel Z-axis: 400 mm Tool holder: SK 40 drawbar thread S 20 x 2 Milling head type: Vertical milling head Speed range: 40 - 2000 rpm Hjdpfx Abegyw S Te Sow Number of speed steps: 18 Table type: Universal swivel/tilting table (± 45° / ± 15°) Clamping surface: 1000 x 520 mm T-slot size: 16 mm Machine vice: 160 mm Connected load: 9.5 kVA Weight: approx. 1900 kg Dimensions: approx. 1570 x 1675 x 1850 mm You will find more new and used items in our shop! International shipping costs on request!

Stanje: rabljeno, številka stroja/vozila: 2801-0234, X-travel: 300 mm y-travel: 220 mm Hodocxxm Ejpfx Ab Sow z-travel: 400 mm Clamping surface: 620 x 390 mm Spindle speed: 31 - 3150 rpm Feed range: 1 - 3600 mm/min Rapid traverse: 4000 mm/min Spindle taper: SK 40 Head swivels +/- 90° Quill stroke: 60 mm Total connected load: 1.09 / 2.0 / 4.0 kW Machine weight approx.: 1.3 t Space requirement approx.: 1.3 x 1.1 x 1.6 m CNC-controlled universal milling machine with Dialog 4 control, vertical head swivels +/- 90° with quill stroke 60mm, horizontal spindle, feeds and rapid traverse in 3 axes, hydraulic tool clamping, automatic central lubrication, coolant system, emergency stop, chip guard enclosure with chip tray, separate control cabinet. The machine is in good condition.

Stanje: rabljeno, Leto izdelave: 1985, x-travel 710 mm y-travel 600 mm z-travel 500 mm NC rotary table 630 mm Spindle taper SK 40 Spindle speeds 18 - 6300 rpm Control DIALOG 4 Feed rate 2 - 3600 mm/min Rapid traverse 6 m/min Maximum table load 485 kg Quill stroke 80 mm Hsdpfstqqtbex Ab Sow Spindle motor 9.5 kW Total power requirement 20 kVA Machine weight approx. 4.6 t Dimensions (L x W x H) 3.8 x 2.24 x 2.35 m Accessories: Vertical head with hydraulic tool clamping and extendable quill, electronic handwheel, coolant system

Stanje: rabljeno, Leto izdelave: 1986, Funkcionalnost: popolnoma funkcionalen, x-slag 710 mm y-slag 600 mm z-slag 500 mm NC-draaitafel 630 mm Spilopname SK 40 Spilsnelheden 18 - 6300 rpm DIALOG 4 besturing Voedingssnelheid 2 - 3600 mm/min Snelle traverse 6 m/min Maximale tafelbelasting 485 kg Zwenkslag 80 mm Spindelmotor 9,5 kW Totaal benodigd vermogen 20 kVA Machinegewicht ca. 4,6 ton Hodpfx Abewu Dfmo Sjw Afmetingen (L x B x H) 3,8 x 2,24 x 2,35 m Accessoires: LNS Fox ws 2-1500 filtersysteem met 2 nieuwe filters in doos, 2 kasten vol gereedschap Deze machine is bij ons in opslag.

Stanje: rabljeno, Leto izdelave: 1989, Technical details: X-axis travel: 300 mm Y-axis travel: 300 mm Z-axis travel: 400 mm Control system: Contour 3 path control Spindle taper ISO: SK 40 Spindle head swivels left and right: 90° Quill travel: 60 mm Speed range: 40 - 4000 rpm / 21 steps Hodpfx Aju Nc Twob Sjw Feed rate: 2 - 3600 mm/min Rapid traverse speed: 4000 mm/min Table size: 620 x 390 mm Clamping table: angle table (mm) Table load capacity: 0.45 t Total power requirement: 12.5 kVA Machine weight approx.: 1400 kg Machine dimensions approx. (LxWxH): 1.5 x 2.1 x 2.0 m Control cabinet dimensions: 1.8 x 0.8 x 1.1 m Equipment: - Operation via Grundig electronic operator panel with pendant arm - Coolant system with pump - Handheld control unit with handwheel - Machine lighting The machine can be demonstrated under power. i.D.

Stanje: dober (rabljeno), Leto izdelave: 1962, Spindle mount, vertical + horizontal SK / ISO 40 Table clamping surface 700 x 285 mm Travel X-axis 500 mm Y-axis 200 + approx. 250 mm Z-axis 400 mm Quill stroke approx. 80 mm 18 main spindle speeds 40 - 2000 rpm 18 feed rates 8 - 400 mm/min Rapid traverse 1200 mm/min Drive power 2.2 kW Dimensions (L x W x H) 1150 x 1050 x 1650 mm Machine weight 1000 kg Accessories / Special features: • Vertical milling head, swiveling R/L • Fixed angle clamping table • Feed + rapid traverse on all axes Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel Hodpsm Uygvjfx Ab Sjw

Stanje: rabljeno, številka stroja/vozila: 0736, x-travel: 800 mm y-travel: 300 mm z-travel: 400 mm Work table: 1000 x 440 mm Hjdpfxecxxyhj Ab Sjw Spindle speeds: 40 - 2000 RPM Number of speed steps: 18 Feed range: 10-500 mm/min Number of feed steps: 18 Rapid traverse: 1.50 m/min Spindle taper: SK40 Total power requirement: 2.2 kW Machine weight approx.: 2 t Space requirement approx.: 1.57 x 1.68 x 1.85 m Universal tool milling machine in traveling column design, suitable for particularly heavy and large workpieces. Equipped with a swiveling vertical head and quill (stroke 85 mm), horizontal spindle with quill (stroke 120 mm), inclined bed with fixed, precise angle table, automatic feeds on 3 axes, chip tray, coolant pump and system, separate control cabinet. The machine is in good condition.

Stanje: rabljeno, številka stroja/vozila: 2806-0743, x-travel: 800 mm y-travel: 550 mm z-travel: 500 mm Table clamping surface (W x D): 1000 x 550 mm Spindle speeds - stepless: 0 - 5000 rpm Feed rate, directly programmable: 2 - 6000 mm/min Rapid traverse: 6.0 m/min Quill stroke: 80 mm Hsdpfxscxxngo Ab Sjw Tool holder: SK40 Total power requirement: 12 kW Machine weight approx.: 3.9 t Space requirement approx. (L x W x H): 2200 x 2800 x 2400 mm

Stanje: rabljeno, Geldmacher MST / Deckel FP4M Milling Machine – Toolroom Milling Machine Weight: approx. 1,450 kg Year of manufacture: 2012 Installation dimensions: Reference value: approx. 2,500 × 2,700 × 2,100 mm (Length × Depth × Height) Travel paths: X-axis: approx. 500 mm Y-axis: approx. 400 mm Z-axis: approx. 400 mm Spindle Taper / Tool Holder: ISO SK 40 Quill travel: Vertical quill: approx. 90 mm extension; in addition, the vertical milling head is movable along the spindle carrier Spindle speed range: approx. 50 – 2,500 rpm Feed rates: Hodpfx Aexcldkjb Sjw Feed: approx. 8 – 630 mm/min; rapid traverse (maximum feed rate) approx. 1,300 mm/min The machine is in very good condition. You are welcome to arrange an inspection. We are happy to organize cost-effective shipping for you! You will receive a proper invoice. A net invoice can be provided for foreign customers, provided you have a valid VAT ID number. Subject to prior sale. Visit our shop and take a look at our other offers as well. All company names and trademarks mentioned are the property of their respective owners and are used for identification and description purposes only. Technical data may differ and errors in the description are subject to change.

Stanje: pripravljen za uporabo (rabljen), Two Deckel Maho milling machines are available. 1) Maho MH 800 E Travel (X/Y/Z): 800mm/450mm/500mm Spindle speed: 3,150 rpm Tool holder: SK40 Hjdpfx Aovb Ha Usb Ssw Quill stroke: 80mm Table dimensions (X/Y): 900mm/600mm Max. table load: 450kg Feed rate (X/Y/Z): 150mm/min Rapid traverse (X/Y/Z): 4,500mm/2,500mm/4,500mm/min Machine dimensions (X/Y/Z): approx. 2,900mm/2,400mm/2,300mm Weight: approx. 4,400kg 2) Deckel Maho FP3NC Travel (X/Y/Z): 500mm/300mm/400mm Table dimensions (X/Y): 800mm/420mm Tool holder: SK40 Spindle speed: 2,000 rpm Feed rate: 50mm/min Rapid traverse: 1,500mm/min Weight: approx. 1,500kg An on-site inspection is possible.

Stanje: pripravljen za uporabo (rabljen), Control: Deckel DIALOG 11E, tooling is available, operating hours unknown, regularly maintained, on-site inspection possible. Hedopu A Ekspfx Ab Sjw

Stanje: generalkompletno obnovljen (rabljeno), Leto izdelave: 1988, - Completely overhauled in 2022 - Heidenhain TNC320 CNC control system - CNC or manual control possible - Movable vertical milling head with extendable spindle - Counter bearing for long milling arbors - Hydraulic tool clamping - Automatic gear transmission - Automatic clamping on X, Y, and Z axes - Automatic central lubrication - Coolant system - Direct path measurement - Collision protection coupling on Y and Z axes - Year of manufacture: 1988 - Includes tool holders, drilling/milling tools & tool trolley Specifications Working area: - X-axis (longitudinal): 485 mm Hsdpfxewhk Ubo Ab Sjw - Y-axis (cross): 385 mm - Z-axis (vertical): 380 mm - Quill stroke (vertical): 80 mm - Vertical milling head manually adjustable on spindle carrier: 150 mm Main drive: - Pole-changing three-phase brake motor: gear transmission with forward/reverse - Power: 3.7 / 4.4 kW - Work spindle speeds: 63 - 3150 rpm (18 steps) - Step increment: 1.25 - Tool holder: SK40 (M16) - Tool clamping: disc spring assembly - Tool release: hydraulic Feed drive: - X-axis: 1 DC motor - Y & Z axes: 1 DC motor - Ball screw spindles: all axes - Feed rate: 2 - 3000 mm/min (programmable) - Rapid traverse X/Y/Z-axis: 3000 mm/min Table slide: - Number of T-slots: 4 - T-slot width: 14H7 mm - T-slot spacing: 63 mm - Permissible load: approx. 600 kg Installation: - Footprint (including safety area): approx. 2300 x 2500 mm - Machine weight incl. vertical milling head and angle table: approx. 1830 kg - Operating voltage: 400 V - Total connected load: 12.5 kVA - Floor load: 3000 kg/m²

Leto izdelave: 1990, Stanje: pripravljen za uporabo (rabljen), Traverse paths X/Y/Z: 500mm/400mm/400mm, table dimensions X/Y: 800mm/460mm, spindle speed: 2,500 rpm, spindle taper: SK40/M16, feed rate: 630mm/min, rapid traverse: 1,300mm/min. Overall dimensions X/Y/Z: approx. 2,000mm/2,000mm/2,000mm, weight: approx. 1,500kg, control: Grundig Contour 2. Documentation available. Inspection on site is possible. Hjdpst Daqnsfx Ab Ssw

Stanje: zelo dobro (rabljeno), Funkcionalnost: popolnoma funkcionalen, Oprema: dokumentacija / priročnik, F736 Universal Milling Machine Deckel FP1 with 3-axis active digital readout TNC 111 Heidenhain 2008 retrofit by FA Huttelmaier Very good CONDITION Technical Specifications: Hedpfx Absu Nvwvs Sew - Year of manufacture: 1985, Machine no. 2102-2891 - Fixed angle table - Spindle speed: 40 – 2000 rpm - Infinitely variable feed on 3 axes - Rapid traverse on 3 axes - Drive power: 1.5 / 1.9 kW - Spindle brake - Travel (X/Y/Z): 300 / 160 / 340 mm - Vertical milling head movable 100 mm on column - Vertical and horizontal quill – ISO 40 taper - Drawbar system S20x2 - Weight approx. 800 kg Accessories & Equipment: - 3-axis digital readout Heidenhain TNC111 - Coolant system - Operating manual, spare parts diagram About the machine: Offered here is a universal milling machine Deckel FP1, year 1985, in very good condition. The FP1 was overhauled in 2008 by the company Huttelmaier. The machine has minimal play on the handwheels and all leadscrews move smoothly. Even at maximum speeds, the milling machine runs very quietly. On this newer FP1 model, feed is continuously variable on all three axes and, in addition, the machine features rapid traverse on all axes. A major advantage is the active 3-axis digital display. With this Heidenhain path control, you can enter dimensions which the machine automatically moves to. The FP1 was located in a training workshop and was only used occasionally. An oil change has been performed. Mechanically and electrically tested. The Heidenhain digital readout makes operation easier and even more precise. Take the opportunity to inspect and test this gem on site under power.

Stanje: skoraj kot novo (rabljeno), Leto izdelave: 1989, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 27110, A fully refurbished Deckel FP4-M Aktiv is being offered. Condition: as new SK40 spindle taper Hydraulic tool clamping, horizontal and vertical Incl. rotary/swivel table + fixed table Hsdewza Nbopfx Ab Sew All defective parts have been replaced All electrical components renewed Digital readout for 4th axis added Chip tray added All lines/hoses replaced All bearings (including spindle bearings) renewed The machine is ready for operation. Free delivery within Germany.

Stanje: zelo dobro (rabljeno), Leto izdelave: 1992, Funkcionalnost: popolnoma funkcionalen, Universal milling machine Deckel FP4M with 3-axis Heidenhain active digital readout – Excellent condition, CE compliant!!! Hodpfx Abju Tuk Hs Sjw Technical Specifications: >> Year of manufacture: 1992 Machine No. 2203-8449 >> Fixed angle table >> Spindle speed: 50 - 2500 rpm >> Feed rate: 8 – 630 mm/min >> Drive power: 3.7 / 4.4 kW >> Spindle brake >> Rapid traverse: 1300 mm/min >> Travel X/Y/Z: 500/400/400 mm >> Vertical milling head adjustable on spindle carrier >> Vertical quill and horizontal quill - SK40 >> Vertical quill extendable 90 mm >> Hydraulic drawbar system >> Weight approx. 1600 kg Accessories and Equipment: >> 3-axis active Heidenhain digital readout >> Coolant system >> Chip tray >> Centralized electric lubrication unit >> Operating manual, spare parts diagrams About the machine: Offered is a Deckel FP4M Universal Milling Machine, active version, in excellent condition. The machine features minimal backlash and all feed screws move smoothly. Even at maximum spindle speeds, the milling machine runs smoothly. The machine is equipped with hydraulic tool clamping. This FP4M was only used occasionally in a government facility for training purposes. On this newer FP4 model, the feed rates on all three axes are steplessly adjustable, and the machine features rapid traverse in every axis. A major advantage is the active 3-axis digital readout. With the Heidenhain traverse control, you can enter dimensions that the machine will automatically position to. An oil change has been performed. Mechanically and electrically tested. The Heidenhain digital readout system makes operation easier and more precise. Take the opportunity to inspect and test the machine under power on site.

Stanje: novo, Leto izdelave: 2025, Overhauled, as-new machine, modernized to meet the legally required safety standard “state of the art” according to operational safety regulations of the professional associations. Control Cabinet Electronics Installation of a new CE-compliant control cabinet in accordance with the latest statutory regulations of the professional associations: BGVA 3 / DIN EN 60204-1 new machine standard. Optional: complete machine in CE execution. A CE declaration of conformity will be issued for the machine, making FPS Werkzeugmaschinen GmbH the legal manufacturer. This ensures the machine complies with the OPERATING SAFETY REGULATION (BetrSichV). The machine’s year of construction is considered to be the delivery date. Standards applied: EN ISO 12100, EN ISO 13857, DIN EN 13128:2009-09, EN ISO 13850, EN ISO 13849, EN 60204-1. Hjdpfeh Sptnox Ab Sjw Control 3-axis FPS Aktiv digital display Speed 25 - 2500 rpm, geometrically stepped direct gearbox with 18 speed stages for maximum torque / milling performance Feed 5 to 500 mm/min, infinitely variable Rapid Traverse 1.2 m/min Quill Extendable quill, vertical 100 mm, SK40 with M16 drawbar thread optional: with DECKEL saw thread S20 x 2 Extendable quill, horizontal approx. 100 mm Axes X/Y/Z: 800 / 300 / 400 mm Table Rigid angle table, 1000 x 440 mm, load capacity 2000 kg Equipment • Vertical and horizontal spindle • Milling head manually swivels +/- 90° Options • Z-axis bellows • Chip tray • Machine lamp • Central lubrication • Universal table • Rotary table • Slotting head • Dividing head • Steady rest • etc.

Stanje: skoraj kot novo (rabljeno), Funkcionalnost: popolnoma funkcionalen, Universal Milling Machine Deckel FP3 with New 3-Axis FPS Aktiv Digital Readout (Heidenhain) | General Overhaul by FPS 2015 | Like-New Condition Technical Data: • Year of manufacture: 1980 | Machine No. 2201-5045 • Fixed angle table • Spindle speed: 25 - 2,500 rpm • Infinitely variable feed rate on all 3 axes • Rapid traverse on all 3 axes • Motor power: 2.0 / 4.0 kW • Spindle brake • Travel (X/Y/Z): 500 / 300 / 400 mm • Vertical milling head movable on spindle head by 200 mm • Extendable vertical and horizontal quill – SK40 • Drawbar system M16 • Weight: approx. 1,500 kg Hedpou Dm E Hjfx Ab Sow Equipment and Accessories: • 3-axis Aktiv Digital Readout (Heidenhain, latest version) • Coolant system • Central lubrication system About the Machine: Offered is a Deckel FP3 universal milling machine in like-new condition. The FP3 was completely overhauled by FPS in 2015 and has seen little use since then. The machine has minimal backlash and all spindles move smoothly. This newer FP3 model features infinitely variable feed rate on all three axes, as well as rapid traverse for each axis. A major advantage is the Aktiv 3-axis digital readout. With the Heidenhain position control, you can enter target dimensions which the machine automatically travels to. An oil change has been performed. The machine has been mechanically and electrically inspected. The Heidenhain digital readout makes operation easier and even more precise. Take the opportunity to view and test the machine under power at our location. The machine is available immediately.

Stanje: dober (rabljeno), Leto izdelave: 1986, CNC universal milling machine Manufacturer: DECKEL, Model: FP5NC, Year: 1986, Control: DIALOG 4 Hedpfx Aexr A A Aeb Sow Travel distances: X 710 mm / Y 600 mm / Z 500 mm Clamping table: 1000 mm x 550 mm Tool holder: SK40 Feed rate programmable: 2 ... 3600 mm/min Spindle speed: 18 ... 6300 rpm Spindle power: 7.5 kW Machine in stock.

Stanje: dober (rabljeno), Funkcionalnost: popolnoma funkcionalen, DECKEL FP1 Aktiv Milling Machine Manufacturer: Deckel Model: FP1 Aktiv Condition: Very good Control type: Conventional Control: Aktiv HEIDENHAIN TNC X travel: 300 mm Y travel: 160 mm Z travel: 340 mm Tool holder: SK40 Spindle speed: 40–2000 rpm Control: Aktiv HEIDENHAIN TNC Total power requirement: 2 kW Hedpfxexnniae Ab Sew Machine weight approx. 0.73 t Space requirements approx. LxWxH 1200x1100x1600 mm