Used Extraction System For Dmu 125 P for sale (67,988)

Condition: new, Year of construction: 2025, Raw air extraction unit ASA 163 With standard undercarriage Dimensions and weights Chip collection volume 175 l Nominal width outside suction socket inlet 160 mm Length approx. 1096 mm Width/depth approx. 648 mm Height approx. 2300 mm Weight approx. 40 kg Electrical data Supply voltage 400 V Mains frequency 50 Hz Filter Filter area 2.2 m² Noise emission Sound pressure level max. 83 dB(A) Volume flow Nominal volume flow 2200 m³/h For milling, planing and sawing chips (no dust) Substantially reduced dust content due to BIA-tested filter material with high separation efficiency Housing parts and impellers made of high-strength special plastic Quick release fasteners for filter and chip bags for unproblematic maintenance Gbsdpfx Afshk S S Ee Aol Robust, high-quality design Easy to move due to swivel castors Low power consumption Suction units comply with dust class L Scope of delivery: System body with mounted fan unit Filter bag / extraction unit chip bag / extraction unit without suction hose

Condition: new, Year of construction: 2025, An all-round reliable, mobile family: AL-KO POWER UNIT® extraction systems are available for maximum volume flows between 790 and 10,000 m³. This makes the energy-efficient AL-KO POWER UNIT® models the perfect solution for small and medium extraction volumes or an ideal supplement to existing stationary systems. Your advantages: - IE 3 motor as standard - approx. 73 m² filter surface Gsdpfxohkzt Ne Af Ajbl - Pre-separator as standard - Certified according to GS-HO-07 - H3 residual dust content 0.1 mg/m³ safely complied with (wood dust) - Optionally with type-tested rotary valve (FSA) - Tested backwater flap - Integrated automatic extinguishing system Technical data: - Nominal motor power: 11.0 kW /3 Ph - voltage: 400 V / 50 Hz - max. volume flow: up to 8,500 m³/h at the fan - nominal volume flow: 6.927 m3/h - Negative pressure at nominal V: 2,543 Pa - Intake connection: 350 mm - Noise level: 71 dB (A) at full load (according to DIN EN ISO 11201) - Chip collection volume (net/gross): 3 x 165 L / 3 x 250 - Dimensions (L x W x H) in mm: 3,130 x 1,058 x 2,361 - Net weight without packaging: 977 kg - Dust class H3 Location: ex stock 54634 Bitburg - immediately available - as in stock subject to prior sale

Condition: new, Year of construction: 2025, Chip extractor ASA 7703 mobile, with 180° rotatable suction unit For milling, planing and sawing chips (not suitable for dust) 180° rotatable suction unit allows suction from below or above Sturdy metal fan wheel High-quality chassis as standard for better stability and easy manoeuvring Quick release fasteners for filter and chip bag Fine filter bag double woven Dimensions and weights Gbodpfjhk S Stox Af Asl Chip collection volume 2 x 290 l Nominal width outside suction socket inlet 260 mm Nominal width outside suction socket outlet 3 x 120, 1 x 100 mm Length approx. 1900 mm Width/depth approx. 670 mm Height approx. 2800 mm Weight approx. 88 kg Electrical data Idle speed 2950 min¯¹ Input power 4,8 kW Supply voltage 400 V Mains frequency 50 Hz Filter Filter area 2 x 5,98 m² Noise emission Sound pressure level max. 98.3 dB(A) Volume flow Nominal volume flow 7700 m³/h Negative pressure max. 2800 Pa Scope of delivery: Two filter bags, two chip bags. Location: ex stock 54634 Bitburg - available at short notice -

Condition: new, Year of construction: 2025, Raw air extractor ASA 141 With standard undercarriage Dimensions and weights Chip collection volume 175 l Nominal width external suction inlet 140 mm Length approx. 1062 mm Width/depth approx. 648 mm Height approx. 2300 mm Weight approx. 40 kg Electrical data Supply voltage 230 V Mains frequency 50 Hz Filter Filter area 1.9 m² Noise emission Sound pressure level max. 78 dB(A) Volume flow Nominal volume flow 1650 m³/h For milling, planing and sawing chips (no dust) Gjdpfxshk S Swe Af Aebl Substantially reduced dust content due to BIA-tested filter material with high separation efficiency Housing parts and impellers made of high-strength special plastic Quick release fasteners for filter and chip bags for unproblematic maintenance Robust, high-quality design Easy to move due to swivel castors Low power consumption Suction units comply with dust class L Scope of delivery: System body with mounted fan unit Filter bag / extraction unit chip bag / extraction unit without suction hose

Condition: new, Year of construction: 2025, RLA 160 Holzkraft Clean Air Dust Extractor For wood dust and shavings, designed for commercial use Item number: 5131620 Brand: Holzkraft Swarf collection volume: 2 x 165 l Nominal diameter of the suction nozzle inlet: 160 mm Length: approx. 1755 mm Width/Depth: approx. 830 mm Height: approx. 1654 mm Weight: approx. 260 kg Electrical data Gbjdehkzttspfx Af Asl Connection voltage: 400 V Mains frequency: 50 Hz Filter Filter area: 9.21 m² Noise emission Sound pressure level: max. 73 dB(A) Voltage: Nominal flow rate: 1448 m³/h Dust class: H3 Included: Metal fan impeller Inspection opening for cleaning the bypass filter 5 m connection cable with CEE plug 5-pole and phase inverter Two fixed and two swivel casters with parking brake Manual cleaning Item No. 5131620 Location: From stock, 54634 Bitburg - Available immediately -

Condition: new, Year of construction: 2025, Technical data: ALKO clean air - mobile extraction unit, type Mobil-Power Unit APU 120, motor power 1.5 KW, intake Ø=120 mm, soundproofed, mobile dust garbage can 135 ltr, manual filter cleaning, dimensions: L= 1,085 mm, W= 650 mm, H= 1,985 mm, volume dust garbage can: 135 liters, weight: 117 kg, nominal volume flow (after cleaning): 814 m³ / h, Exhibition piece At an absolute special price Location: From stock Bitburg Gbedpfxecdy Ndo Af Aol

Year of construction: 2003, condition: ready for operation (used), Travel X/Y/Z: 600mm/700mm/800mm, resolution: 0.001mm, input resolution: 0.001mm, positioning tolerance: 0.01mm, feed rate: 15m/min, rapid traverse: 40m/min, speed: 18000rpm, power: 31kW, control: Heidenhain MillPlus. Documentation available. On-site inspection is possible. Gbedpex U Dwisfx Af Ael

Year of construction: 2005, condition: ready for operation (used), A CNC milling machine, which has been converted to a horizontal design, is available. Travel X/Y/Z: 800mm/700mm/600mm, repeat accuracy: mm. Table diameter: 630mm, max. table load: 600kg, tool positions: 60, tool holder: 60, tool diameter: 100mm/160mm, tool length: 350mm, max. tool weight: 10kg, feed rate: 50m/min, rapid traverse: 50m/min. Machine dimensions X/Y/Z: approx. 6600mm/5400mm/2750mm, weight: approx. 10200kg, control: iTNC 530. Documentation available. On-site inspection is possible. Gbsdpfx Aov Amprsf Ael

Condition: new, SCHUKO Vacomat 140/160 XPe clean air extraction system - Exhibition unit - Filter generation motorized, mobile, extraction side right or left, can be remounted ----- Technical data ----- Test mark: H3 / BGHM HO 193023, Extraction nozzle Ø: 1 x 140 / 160 mm, Nominal volume flow: 1,447 m³/h, Gbodpsu R Szyefx Af Ael max. negative pressure: 2,200 Pa, Filter area: 9.5 m², Residual dust content: < 0.1 mg/m³, Number of bags: 1 piece, Motor: 2.2 kW, Dimensions (LxWxH): 1,665 x 900 x 1,980 mm, Weight: 306 kg, Dust class M: AWN 16 - new exhibition machine -

Condition: used, Year of construction: 2008, x-travel 800 mm y-travel 800 mm z-travel 800 mm Control iTNC 530 Heidenhain Max. rpm 18.000 min/-1 power capacity - main spindel 28 / 19 kW max. Torque 121 / 82 Nm tool taper HSK-A63 swivellable B: 0 - 190 ° swivle time 1,2 s table diameter 900 x 700 mm max. table load 1.400 kg rotatable C: 360 ° number of toolpositions 40 pos. tool taper HSK-A63 change-time chip to chip ca. 5,0 sec rapid traverse ( X / Y / Z ) 60 m/min rapid traverse B: 30 m/min rapid traverse C: 30 m/min feed speeds max. 60.000 mm/min total power requirement 64 kVA weight of the machine ca. 14,0 t dimensions of the machine ca. 6,5 x 6,5 x 3,5 m 5 Axis CNC-Machiningcenter Universal DECKEL MAHO - DMU 80 P duoBLOCK - 5-Axis Gedpfx Aeukwatjf Ajbl - Swivel-Milling-Head - Rotary-Table

Condition: used, Year of construction: 2006, x-travel 800 mm y-travel 800 mm Godpfxstqmmzj Af Asbl z-travel 800 mm Control iTNC 530 Heidenhain Max. rpm 18.000 min/-1 power capacity - main spindel 28 / 19 kW max. Torque 121 / 82 Nm tool taper HSK A63 swivellable B: 0 - 190 ° swivle time 1,2 s table diameter 900 x 700 mm max. table load 1.400 kg rotatable C: 360 ° number of toolpositions 60 pos. tool taper HSK A63 change-time chip to chip ca. 5,0 sec rapid traverse ( X / Y / Z ) 60 m/min rapid traverse B: 30 m/min rapid traverse C: 30 m/min feed speeds max. 60.000 mm/min total power requirement 64 kVA weight of the machine ca. 14,0 t dimensions of the machine ca. 6,0 x 6,5 x 3,2 m 5 Axis CNC-Machiningcenter Universal DECKEL MAHO - DMU 80 P duoBLOCK - 5-axis simultaneous - Swivel-Milling-Head - Rotary-Table

Condition: new, With air flow rates of up to 22,000 m³/h, the stationary compact filter systems of the ECO JET series offer a wide range of applications. They are the ideal extraction solution for machines in various manufacturing sectors and industries, including larger processing machines. Eligible for BAFA funding according to Module 4. ECO JET series systems are equipped with fans arranged on the clean air side, which draw the dust- and chip-laden air towards the filter unit. In the most powerful DUO models, two fans are connected in parallel. A flange at the filter unit inlet enables the connection of custom duct diameters. The aerodynamically optimized airflow in the separation chamber allows coarse particles to be separated directly, without reaching the filter bags. Residual dust collected by the filters is automatically cleaned by the AL-KO OPTI JET® filter cleaning system, with the separated material discharged into mobile collection containers located beneath the filter. Gedpfxowwtuio Af Aobl Applications: - Extraction from production machines, machining centers, and ductwork systems with multiple suction points - Direct extraction for continuous operation - In sectors such as wood processing, joineries, carpentry workshops, furniture manufacturing, plastics manufacturing and processing, paper production, orthopedic industry, and many more Advantages: - Wide selection of standard extraction systems with numerous customer-specific customization and options - Consistently high suction performance thanks to integrated pre-separator and AL-KO OPTI JET filter cleaning system - Heating cost savings, as 100% recirculation operation is possible in many cases - Small footprint due to compact design - Suitable for indoor and outdoor installation - Available in ATEX-compliant versions - Extensive range of accessories and numerous options for individual device configuration - Eligible for BAFA funding according to Module 4

Condition: new, Thanks to their modular design, the PROFI JET® series system filter units enable the bespoke planning and construction of extraction solutions for virtually any required air volume and practically every conceivable application. The proven system also impresses with outstanding noise protection due to its insulated wall panels and, when installed outdoors, minimizes heat loss. Eligible for BAFA funding under Module 4. Operation: The custom-designed extraction systems of the PROFI JET series are built on a robust steel frame. The frame is fully clad with insulated, double-walled, powder-coated steel sheet panels to ensure that all components—including fan, filter cleaning, and discharge elements—are protected from dirt and weather within the closed system enclosure. The clean-air side fans are installed at the top of the unit and draw in dust- and chip-laden air into the filter section. A generously proportioned pre-separation chamber ensures effective separation of coarse particles and chips. The subsequent filter bags or cartridges remove any remaining fine dust. The cleaned exhaust air is routed through a sound-insulated return air chamber either back into the building or discharged outside. Applications: - Extraction at multiple processing machines, workstations, or entire production areas - Spatial ventilation and extraction for enclosures and work cabins - Suitable for virtually all types of dust and chips - Also for dusts and applications with ATEX classification - Extraction especially in the wood, plastics, metal, welding, cutting, and recycling industries—as well as many others Advantages: - Custom, precise planning and implementation of your extraction system - Cost-effective and quick delivery due to modular design with standard components - Quiet and energy-saving operation thanks to insulated panels - Consistently high extraction performance due to integrated pre-separation chamber and AL-KO OPTI JET® filter cleaning system - Heating cost savings, as 100% recirculated air operation is possible in many cases - Minimal space requirements due to compact construction Gjdpewwryqjfx Af Aebl - Suitable for indoor and outdoor installation - Professional appearance thanks to powder-coated panels - Available in ATEX-compliant versions - Comprehensive accessories and numerous options for individualized system configuration - Eligible for BAFA funding under Module 4

Year of construction: 2023, condition: used, functionality: fully functional, machine/vehicle number: SN-22-1409, For sale is a high-quality extraction system from the brand Absaugwerk, year of manufacture 2023, specifically designed for the collection and filtration of welding fume (e.g. aluminum dust). The system meets the latest technical standards and includes: Equipment: • Extraction table with downward extraction • Integrated wet separator in line with the latest safety standards • Suitable for professional welding applications • ATEX-compliant (Zone 2, Ex II 3G) • Power: 4.0 kW / 400 V / 50 Hz • Condition: almost as new, fully functional Collection by buyer. Assistance with dismantling/transport can be arranged if required. If you are interested or have any questions, please feel free to send me a message. On-site inspection by appointment is possible. More metalworking machines available, such as bench drill presses, press brakes, column drill presses, eccentric presses, heavy-duty racking, welding tables, MIG/MAG welding units, compressors, etc. – please check my other listings. Domestic price net plus VAT or Net export price Pick-up only – dismantling and transport by buyer or by arrangement. If you are interested or have any questions, please feel free to send me a message. More photos and technical details available on request. All information provided without guarantee or warranty. Subject to errors and prior sale. For further questions, please call. Gsdpjx Da Tiefx Af Aebl Nous parlons Francais / Мы говорим по русски We speak English / Noi vorbim româneste Viber / WhatsApp / Skype For an additional fee, we handle all customs and registration formalities. We transfer vehicles to the port for an extra charge.

Condition: ready for operation (used), Fanuc A08B-0051-B002 FanucP-System Model H , used, normal signs of wear, 100% functional ATTENTION: Please inquire for charges for packing and transport separately! ATTENTION: Please inquire for charges for packing and transport separately! Gbodpsi D Uzysfx Af Ajl

Condition: excellent (used), STACKER (BRIDGE-FRAME) WITH DOUBLE STORAGE STATION Gbedjt Ty A Ajpfx Af Ael Vacuum system (with its pump) No. 2 Vertical supporting columns of the top supporting beam No. 1 Horizontal top supporting beam (where the carriage slide on) No. 1 Motorized sliding carriage with horizontal metal arms No. 2 Out-side rollers way (on ground) to out-feed pile of panels from the Unloader/Stacker No. 1 Out-side motorized rollers table (which brings panels to the Unloader) Separate electric and command panel Perimetral safety metal grids Working capacity (cycles/min) 16 (ca.) Min/Max panels thickness mm 10 / 50 (ca.) Min dimensions of the panels mm 250 x 320 (ca.) Max dimensions of the panels mm 1300 x 3000 (ca.) Total installed motor power Kw 80

Condition: ready for operation (used), functionality: fully functional, power: 6.5 kW (8.84 HP), SPÄNEX extraction unit with 5 chip bags, complete with extraction installation as shown in the photos, motor 6.5 kW, connection D=300 mm. Gbsdpfxex Rbuws Af Ajl

Condition: ready for operation (used), Specifications: Supply voltage | V | 230 Frequency | Hz | 50 Run Hours: 2690 hours Type of current | Ph | 1. Engine power | kW | 2.4 Air flow volume max. | m³/h | 640 Negative pressure max. | Pa | 15000 Protection class | | IP54 ISO class | | F Extraction performance | % | >99 Width | mm | 365 Depth | mm | 768 Height | mm | 801 Weight | kg | 70 Sound pressure level | dB(A) | 70 Allowed ambient temperature | °C | +5 to +35 (during operations) Gedoxvpumopfx Af Aebl | | -10 to +40 (during transport and storage) Max. temperature of polluted air at the capture point | °C | +50 Allowed max. humidity | % | 70 Good working condition. Please check out our other listings as well.

Year of construction: 2022, condition: as good as new (ex-display), functionality: fully functional, SYNC Nucleic Acids Extraction System (S032) Covid-19 Solutions/Auto Machine The SYNC Nucleic Acids Extraction System utilizes the unique characteristic of magnetic beads bonding with nucleic acid under a specific environment to purify the target nucleic acid samples. The purification protocol includes four basic steps: sample lysis, nucleic acid binding, wash and elution. Using SYNC Nucleic Acids Extraction System, the majority of nucleic acid purification processes will be done automatically and it dramatically reduces the human error and use the lab force much more efficiently. Using with the Geneaid Magnetic Beads Virus DNA/RNA Extraction Plate Kit, viral DNA/RNA such as SARS-COV-2, HBV, HCV and HIV would be automatically purified from nasopharyngeal swabs and plasma specimens. The purified viral DNA/RNA can be directly used for subsequent qRT-PCR detection. pecifications (Cat. # S032) Model Name: SYNC Nucleic Acids Extraction System Sample Processing: 1 - 32 samples per batch Reagent Type: Geneaid 96 well magnetic beads nucleic acid extraction plates Control Interface: 10-inch touch panel Heat Block Temperature: Room temperature to 80°C Mixing Speed: 3 adjustable speeds Mixing Depth: Adjustable, based on reagent volume Collection Efficiency: 100 copies/ml Gbjdpfx Afjuvdnze Asl Inter-WellPurification Accuracy: CV

Condition: as good as new (ex-display), Year of construction: 2025, Special price for trade faire machine *available upon request New: With the frequency converter option, up to a maximum of 45% eligible for state funding Combination of: mütek Briquetting Press MPP 60 + Extraction Unit MMJET 350 *Approved for indoor installation *both individual machines manufactured and in stock, only need to be connected to each other Gedod Su Hxopfx Af Asbl 1. Technical Data Briquetting Press: Our best-selling briquetting press, the classic. + Proven, simple technology for extremely low susceptibility to faults + 25 years of experience, development, and know-how + Several thousand machines in use with satisfied customers + Top price-performance ratio Customs tariff number: 84793010 Briquette diameter: 50 mm Front bush: 50 mm Briquette stroke max.: 40 mm Briquette stroke opt.: 40 mm Throughput rate (depending on material): up to 60 kg/h* *depending on bulk density *based on a bulk density of 200 kg per cubic meter . Motor power: 5.5 kW, 400 Volt / 50 Hz / 3-phase, Footprint total system: 2.2x1.1x2.8 m LxWxH Height - 2.8 m (special container) Delivery possible in 2 components Weight: approx. 1200 kg, Oil volume: 110 liters Silo diameter: 1000 mm Pump: 27 liters Hydraulic pre-compressor Press tongs cooling option: no Hydraulic oil cooling option: yes Filling level monitoring option: yes CE compliant 2. Technical Data Clean Air Extraction Unit MMJET 350: Extraction connection diameter: 350 mm Motor: 11 kW Extraction nozzle left (when standing in front of the dust bin) Residual dust:

Year of construction: 2022, condition: new, Highlights of our two extraction systems Eco 3000 and Eco 5000 Gbsdpfjidma Njx Af Aol +Solid sheet metal construction ensures ideal flow conditions +resistant wind impeller +constant extraction performance even under constant stress + Connection of up to a maximum of 3/4 machines possible using the supplied distributors +high suction power due to large filter surface (filter dimensions: ø500x1100mm) +Integrated driving device for easy manoeuvring Scope of delivery: Running gear, filter and chip bag, distributor (connection for 3/4xø100mm suction pipes), incl ---- Device available in two designs: *in the following marked with position 1) and 2) 1) Extraction system Eco 3000 - 1.5 kW * with a chip bag and an industrial polyester filter Motor power S1 in W 1500 Installation dimensions in mm 985x560x2250 Extraction capacity in m³/h: 3,000 Suction outlets 3x (ø100mm) Negative pressure in Pa: 2200 2) Extraction system Eco 5000 - 2.2 kW * with two chip bags and two industrial polyester filters Motor power S1 in W 2200 Installation dimensions in mm 1540x560x2270 Extraction capacity in m³/h: 5,000 Suction outlets 4x (ø100mm) Negative pressure in Pa: 2600 --- Information applies to both devices: Sound pressure level in dB(A) < 85 dB Voltage: 400V / 50Hz *Option: also available in 230 V Chip bag diameter in mm: 500 Chip bag length in mm: 850 Delivered in a box for self-assembly in a few steps The filters must be cleaned manually at regular intervals. Surcharge for suction with automatic cleaning + €4,700 net

Condition: ready for operation (used), Year of construction: 2004, operating hours: 9,848 h, functionality: fully functional, machine/vehicle number: 1116 000179 3, travel distance X-axis: 600 mm, travel distance Y-axis: 700 mm, travel distance Z-axis: 600 mm, rotational speed (max.): 12,000 rpm, TECHNICAL DETAILS Torque available at the spindle: see diagram in PDF Motor power at 100% duty cycle: see diagram in PDF Motor power at 40% duty cycle: see diagram in PDF Steplessly programmable spindle speed: 20–12,000 rpm Spindle speed in setup mode: 20–800 rpm Magazine stations: 30 slots Measuring System Resolution X, Y, Z axes: 0.001 mm Input increment X, Y, Z axes: 0.001 mm Positioning tolerance X, Y, Z axes: 0.010 mm Feed Drive Motors: AC brake motors for axes X, Y, Z Steplessly programmable feed rate X, Y, Z axes: 20–15,000 mm/min Rapid traverse X, Y, Z axes: 60 m/min Setup mode X, Y, Z axes: 20–2,000 mm/min NC Swivel Rotary Table Clamping surface: Ø630 mm T-slot spacing: 63 mm Gbedpowxybfjfx Af Aol Number of T-slots / Size: 9 / 14 H7 Centering bore: Ø50H6 mm Holding torque at 100% duty cycle A-axis: 3,866 Nm Holding torque at 100% duty cycle C-axis: 6,008 Nm Max. rotation of table plate A-axis: 7.3 rpm Max. rotation of table plate C-axis: 7.0 rpm Swivel range A-axis: ±45 / 30° Rotary range C-axis: n × 360° Tool holder: SK40 Operating Hours Power-on hours: 35,099 h Spindle hours: 9,848 h

Condition: ready for operation (used), Year of construction: 1999, functionality: fully functional, travel distance X-axis: 1,250 mm, travel distance Y-axis: 880 mm, travel distance Z-axis: 800 mm, spindle speed (max.): 12,000 rpm, number of slots in tool magazine: 60, TECHNICAL DETAILS Gbodpoxbz Snofx Af Ajl Control: Heidenhain TNC 430 Travel distances X-axis: 1,250 mm Y-axis: 880 mm Z-axis: 800 mm Spindle Main spindle speed range: max. 12,000 rpm Main spindle drive power: 15 / 10 kW Max. torque: 500 Nm Tool holder: SK 40 WORK TABLE Clamping surface: 1,500 x 1,050 mm Max. table load: 2,500 kg Number of T-slots: 10 T-slot width: 18 H7 mm T-slot spacing: 100 mm TOOLS Number of tool stations: 60 Max. tool diameter: 80 mm Max. tool diameter with adjacent station empty: 160 mm Max. tool length: 315 mm Max. tool weight: 8 kg Max. total weight: 100 kg FEEDS Rapid traverse (X / Y / Z): 15 m/min Feed speed: 10,000 mm/min MACHINE DETAILS Space requirement & weight Required space: approx. 7.0 x 5.0 x 3.3 m Machine weight: approx. 16.0 t Total power requirement: 29 kW EQUIPMENT Documentation Chip conveyor Coolant system Tool changer Note: The transport rigging must be organized by the buyer.

Condition: good (used), Year of construction: 1990, functionality: fully functional, Extraction system/bag filter, type 244300 NAsf 4/3, year of manufacture 1990, equipped with new fan blades. Fan is flange-mounted, filter area approx. 26 m², with 4 bags. 3 kW. Machine subject to differential VAT. Gjdpsxf H Aysfx Af Aobl

Condition: excellent (used), 4 kW motor 4 bags Length 3.1 m Gbsdpfsumk D Dsx Af Ael Width 1m Height 3.1 m