Used Trulaser for sale (119)

Condition: excellent (used), Year of construction: 2008, A used TruLaser 3530 laser cutting system is for sale. Technical data: - Operating hours: beam on 2955 h/laser on 15464 h - X-travel 3000 mm (max. 3104) - Y-travel 1500 mm (max. 1580) - Xp-travel 300 mm (max. 305 mm) - Z-travel 114 mm - max. material thickness 20 mm - maintenance-free three-phase motors in X1, X2, Xp, Y1, Y2 and Z axes - max. positioning speed parallel to the axis 120 m/min - simultaneous 170 mm/min. - Acceleration when positioning X-axis 9 m/second - Xp + Y-axis 15 m/second - Cutting X-axis 4 m/second - Cutting Xp and Y-axis 15 m/sec. Standard equipment - Closed machine frame with integrated laser resonator - Movement unit for optimal processing speeds - Additional highly dynamic XP axis - Automatic pallet changer - Closed beam guidance - NitroLine, high-pressure cutting - FocusLine, constant focus position - Compressed air cutting - PierceLine, reduction of the piercing process - PlasmaLine, plasma sensors - SprintLine, fast processing - LensLine - FlyLine - ContourLine, for producing small holes - Microweld - Spray device - Position laser diode - Programmable cutting gas pressure - Automatic switch-off - Work area lighting - TruTops Laser lite - CO2 laser TruFlow 3200 with high-frequency excitation, mirror telescope and maintenance-free turbo radial blower - Laser control TASC 3, logbook function and cooling unit - Laser cutting head with 5 and 7.5 lens and quick-change device - ControlLine, capacitive height control and process control - Sinumerik 840D control: Open control - Causes of error messages via diagnostic functions Extended machine equipment - Pallet changing system - Laser cutting heads 5" and 7.5" - Additional laser cutting head with 3.75" lens for high-speed cutting - Dimensions in mm: approx. 9300 x 4600 x 2000, weight in kg: approx. 11500 Year of manufacture: 2008 Special price €55,000 net Gedoixl Tnepfx Ah Njir Machine has been dismantled. Can be viewed by prior arrangement. If you are interested, please contact us

Condition: used, Year of construction: 2018, operating hours: 20,000 h, machine/vehicle number: A0261G0108, laser hours: 20,000 h, laser power: 4,000 W, warranty duration: 1 months, Equipment: centralized greasing system, documentation/manual, emergency stop, BTH IMPORT STAL Sp. Z o.o is offering for sale: TRUMPF TruLaser3060 L66 + TruDisk4001 Giedpfxjwf Epue Ah Nor Fiber source: TruDisk4001 (4000W) Working area: 2500x6000 mm Operating hours: 20,000 Laser-on hours: 42,000 The machine is in continuous operation. Visits and tests are welcome.

Condition: excellent (used), functionality: fully functional, Year of construction: 2012, operating hours: 55,771 h, laser hours: 35,157 h, laser power: 3,200 W, sheet thickness (max.): 20 mm, sheet thickness steel (max.): 20 mm, sheet thickness aluminum (max.): 8 mm, table length: 3,000 mm, table width: 1,500 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 150 mm, positioning speed: 140 m/min, positioning accuracy: 0.02 mm, year of last overhaul: 2024, feed length X-axis: 3,000 mm, feed length Y-axis: 1,500 mm, feed length Z-axis: 150 mm, Equipment: cooling unit, documentation/manual, safety light barrier, The laser is in operation, can be inspected and tested. Regularly serviced in good technical condition. Mirrors completely replaced in 2024. Giedpfxov Hxbbe Ah Ner

Condition: good (used), Year of construction: 2007, Working area X 4000 mm, Y 2000 mm, Z 115 mm Weight 16000 kg parameters L x W x H: approx: 9800 mm x 5300 mm x 2000 mm Siemens Sinumerik 840 D type of laser TruFlow 4000 W max thickness 20 mm 4000 mm x 1250 mm feed 3400 mm Dismantling, loading, crane is not in price of machine - plus price per all services NC: 88631 - Resonator/HD pump 1: 87603 - Beam on/pump 2: 53667 Technical parameters:- Designation: KNC/H 1500/65- Maximum temperature: 650 °C- Recommended operating temperature range: 300°C – 600°C- External dimensions approx. (wxhxd): 2800x3200*x2100mm * height including structure for door when hydraulically opening- Internal dimensions (wxhxd): 1500 x 1000 x 1000 mm- Number of heating zones: 1- Maximum batch weight: 1000 kg- Melting power: 48 kW- Furnace weight: 1300 approx. kg- Voltage: 3/PEN 400/230V AC 50 Hz- The damper is part of the furnace, serves for automatic temperature control in the furnace and is controlled by the program from the controller. - includes technical documentation in Slovak - protocol of measurement and optimization of the temperature field to meet the DIN 17052-1 standard ΔT10°C in the internal working space (in an empty furnace at Tmax) \- Technical documentation is in SJ. Gedpfx Asvtm Szoh Neir Manufacturer: LAC, s.r.o., Czech Republic Year of Production: 2021 This is an electric furnace, the heating system of which consists of heating resistance elements located near the fan unit. Through the heating branches, the fan ensures circulation of the atmosphere in the heating space and thus heating of the working atmosphere and the charge in the furnace. The working chamber of the furnace is equipped with a separately regulated heating unit in the rear wall of the furnace. The furnace is equipped with a radial circulation fan with a horizontal shaft to ensure uniform temperature distribution throughout the working space of the furnace. The circulation fan drives the heated air through the circulation channels of the circulation insert. All rotating parts are located under a cover against accidental contact. The temperature profile of the device is controlled by a PID programmable INDUSTRY controller. This controller allows the creation of up to 30 heat treatment programs depending on the needs of the processing technology and the properties of the processed batch. Dimensions see. appendix.

Condition: used, functionality: fully functional, Year of construction: 2019, operating hours: 5,900 h, machine/vehicle number: A144oD0180, control type: PLC-controlled, degree of automation: automatic, actuation type: electric, controller manufacturer: TRUMPF, laser type: fiber laser, laser source manufacturer: TRUMPF, laser source model: TRUMPF, laser hours: 1,800 h, laser power: 2,000 W, sheet thickness (max.): 8 mm, power: 25 kW (33.99 HP), input voltage: 400 V, input frequency: 50 Hz, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, safety light barrier, We offer this used TRUMPF TruLaser Tube 5000 laser cutting machine, manufactured in 2019. Type: T06 Serial number: A1440D0180 Year of manufacture: 05-2019 Laser power: 2000 W Power supply: 400 V / 50 Hz Connected load: 25.0 kVA Control voltage: 24 V= Required fuses: 3x80 A If you have any further questions or require more information, please send us a message or call us. Gjdpfx Ahoypc Iho Nsir

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2012, operating hours: 25,757 h, laser power: 4,000 W, sheet thickness steel (max.): 20 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 115 mm, TRUMPF TruLaser 3030 with Comprehensive Equipment! TECHNICAL DETAILS Working Area Maximum X-axis travel: 3,000 mm Maximum Y-axis travel: 1,500 mm Maximum Z-axis travel: 115 mm Laser Laser power: 4,000 W Maximum sheet thickness steel: 20 mm Maximum sheet thickness stainless steel: 15 mm Maximum sheet thickness aluminium: 10 mm Control Unit Control system: Siemens Sinumerik 840D SL MACHINE DETAILS Operating Hours Laser hours: 25,757 h Operating hours: 54,881 h EQUIPMENT Machine PierceLine FocusLine NitroLine PlasmaLine Cutting Head Cutting head with 250 mm lens Universal quick-change unit (UTI) with bus system LensLine with condition monitoring ControlLine: height control and sheet edge detection Automatic nozzle changer High-speed head Water-cooled cutting head (CoolLine) Laser CO₂ laser TruFlow 4000 with optimized standby mode Maintenance-free turbo radial blower High-frequency excitation TASC laser control Laser power control Laser logbook function Control Features ContourLine FastLine FlyLine Microweld AdjustLine Gisdswzwryjpfx Ah Nsr CE Marking Disassembly and loading available on request.

Condition: like new (used), functionality: fully functional, Year of construction: 2023, degree of automation: automatic, laser hours: 2,800 h, laser power: 6,000 W, positioning speed: 280 m/min, Equipment: CE marking, centralized greasing system, cooling unit, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, TruLaser 5030 fiber L76 6kW + LiftMaster Linear + Material Buffer small storage system BASIC MACHINE: TruLaser 5030 fiber (L76) Machine • Working area: 3000 × 1500 mm • Box-type frame • Longitudinal conveyor belt • Precision motion unit for high-accuracy processing • Gantry drive with linear direct drives • Process chiller for machine and laser (water/air) • Work area lighting • Pilot laser • Spraying system • Automatic nozzle cleaning • Integrated electrical enclosures • Integrated cabinet • Enclosed beam guidance via fiber optic cable (LLK) • Machine status indicator light • Transport and installation device TRUMPF laser • Pump diode excitation • Laser power regulation Cutting unit • Universal cutting head with fully adaptive lens system • Protective glass • Online condition monitoring for protective glass • Dynamic Focus Control • Automatic nozzle centering Control • Rapid post-production • SINUMERIK CNC • Ergonomic control panel with 21.5" wide-format multi-touch color display • Integrated technological parameters • Automatic shutdown • Programmable pressure/cutting gas selection • Microweld • Remote maintenance interface • Production planning • Multi-sheet processing • Condition Guide • Cutting Guide Functions • AdjustLine • BrightLine fiber • Smart Nozzle Automation • DetectLine • Drop&Cut • Integrated camera 1 for process monitoring • ControlLine • FastLine • FlyLine • FocusLine • NitroLine • PierceLine • PlasmaLine • Fusion Cut Performance Package • Highspeed Cutting Package • Copper Cutting Package • Brass Cutting Package Data transmission • USB port • RJ45 network interface • Online Update Manager Safety • CE marking and EC Machinery Directive compliant • Light barriers • Multi-chamber compact dust extraction unit • Electric rolling roof • Enclosed protective housing with certified viewing panels on both right and left sides Advanced standard configuration Giodpfxsyah Rcs Ah Ner • Compact dust extraction • Mild steel slats • Laser powered via the machine • Automatic longitudinal pallet changer • Machine ambient temperature range 5-35°C / up to 45°C • Smart View MT ready • Data usage agreement • Nanojoints • Smart Rerun / Purchase • External solid-state laser TruDisk 6001 with BrightLine fiber OPTIONS: Highspeed Eco cutting package • High-speed cutting with reduced gas consumption Thick plate cutting package Prefilter for nitrogen and oxygen • Particle filtration for nitrogen/oxygen process gas lines, prefilter with external filter element Easy Filter • For annual maintenance of spent cooling water • Eliminates regular water changes Wireless Operating Point

Condition: used, functionality: fully functional, Year of construction: 2019, laser hours: 5,780 h, laser power: 4,000 W, TRULASER TUBE 7000 FIBER 4kW Year of manufacture: 07/2019 Laser power: 4kW fiber Laser on: 5780 h (!) Technical information: - Max. outside diameter: 254 mm - Loading and unloading Giodpfeyalb Esx Ah Njr - Loading with LoadMaster Tube: 6,5m / Automatic unolading: 4,5m - RapidCut  Use of a dynamic additional axis  More than fourfold accelerations possible Bevel cut technology package  Bevel cutting up to 45°  Contains electrically movable feed-through chuck - PierceLine  Optimized piercing process - Technology package for tapping • Additional machining processes such as flow drilling, tapping and twist drilling • NC controlled spindle with standard clamping system (standard interface HSK-A32) • The application and technology parameters of the tool adapter and tools should be requested from the respective supplier • 8-fold tool changer ...and many more options!

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2008, operating hours: 25,000 h, laser power: 4,000 W, sheet thickness (max.): 20 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 114 mm, No reserve price – guaranteed sale to the highest bidder! Regularly serviced laser cutting machine with comprehensive accessories! TECHNICAL DETAILS X-axis travel: 3,000 mm Y-axis travel: 1,500 mm Z-axis travel: 114 mm Gsdpfx Ahext Evns Nsir Laser power: 4,000 W Working area: 3,000 mm Max. material thickness: 20 mm Xp stroke: 300 mm (max. 305 mm) Max. positioning speed parallel to axis: 120 m/min X-axis positioning acceleration: 9 m/s² Xp + Y-axis: 15 m/s² Cutting speed X-axis: 4 m/s Cutting speed Xp and Y-axis: 15 m/s MACHINE DETAILS Control: Sinumerik 840D control Dimensions & Weight Dimensions: approx. 9,300 x 4,600 x 2,000 mm Weight: approx. 11,500 kg Laser hours: 25,000 h EQUIPMENT Cooling unit Automatic pallet changer Enclosed beam guide NitroLine high-pressure cutting FocusLine constant focal position Compressed air cutting PierceLine for reduced piercing time PlasmaLine plasma sensors SprintLine for rapid processing LensLine FlyLine ContourLine for small hole production Micro welding Spray device (unused/virgin) Positioning laser diode Programmable cutting gas pressure Automatic shut-off Work area lighting TruTops Laser lite CO2 laser TruFlow 3200 with high-frequency excitation Mirror telescope and maintenance-free turbo radial blower Laser control TASC 3 with logbook function and cooling unit Laser cutting head with 5" and 7.5" lenses, quick-change system ControlLine capacitive height monitoring and process control Error causes via diagnostic functions Additional laser cutting head with 3.75" lens for high-speed cutting Pallet changer system Note: The Trumpf LoadMaster shown in the photos is not included in the offer.

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2018, operating hours: 19,476 h, machine/vehicle number: A0261G0108, laser power: 4,000 W, travel distance X-axis: 6,000 mm, travel distance Y-axis: 2,500 mm, workpiece weight (max.): 2,900 kg, overall weight: 19,800 kg, TECHNICAL DETAILS Working Area X-axis: 6,000 mm Y-axis: 2,500 mm Max. workpiece weight without heavy-duty pallet changer: 2,900 kg Average positioning accuracy: 0.05 Pa Maximum positioning deviation: 0.03 Ps max Maximum Speed Simultaneous: 170 m/min Laser power: 4,000 W MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 15,450 x 6,878 x 2,200 mm Weight: 19,800 kg Operating Hours Laser hours: 19,476 h Laser on: 41,272 h EQUIPMENT Giodpfx Aew Slx Ioh Nsr AdjustLine BrightLine fiber Cutting Assistant Cutting Guide Condition Guide CoolLine DetectLine Dot Matrix Code Drop&Cut Dynamic Focus Control EdgeLine Bevel Energy-efficient cooling unit FlexLine Highspeed Highspeed Eco Integrated gas mixer Collision protection Nanojoint Online condition monitoring protective glass PierceLine Smart Collision Prevention Smart Rerun

Condition: ready for operation (used), Year of construction: 2013, sheet thickness steel (max.): 25 mm, power: 6 kW (8.16 HP), Working area 3000x1500. Loadmaster system included.Due to not using machine for longer time,the service is required. Godpfxowh R R Ne Ah Njir

Condition: like new (used), functionality: fully functional, Year of construction: 2024, operating hours: 950 h, machine/vehicle number: A1217J0251, control type: CNC control, degree of automation: semi-automatic, actuation type: electric, laser type: fiber laser, laser source manufacturer: Trumpf, laser source model: fiber4000, laser hours: 98 h, laser power: 4,000 W, table length: 3,000 mm, table width: 2,000 mm, input voltage: 380 V, input frequency: 60 Hz, type of input current: three-phase, type of cooling: water, compressed air connection: 6 bar, overall weight: 5,500 kg, year of last overhaul: 2024, Equipment: CE marking, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, safety light barrier, The equipment has a laser-on time of 98 hours and is in condition similar to new. It is currently disassembled, so operational testing is not possible. Gisdpfx Ahoyyti Eo Njr

Condition: used, functionality: fully functional, Year of construction: 2013, operating hours: 69,301 h, control type: CNC control, degree of automation: automatic, laser type: CO₂ laser, laser source manufacturer: Trumpf, laser source model: Truflow3200, laser hours: 41,349 h, laser power: 3,200 W, sheet thickness (max.): 20 mm, sheet thickness steel (max.): 20 mm, sheet thickness stainless steel (max.): 12 mm, sheet thickness aluminum (max.): 8 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 115 mm, feed rate X-axis: 140 m/min, feed rate Y-axis: 140 m/min, repeat accuracy: 0.01 mm, input voltage: 400 V, input frequency: 50 Hz, type of input current: three-phase, Equipment: nozzle changer, Trumpf TruLaser 3030 (L20) Laser Cutting Machine Year of manufacture: 2013 Working area: 3000 × 1500 × 115 mm Rated laser power: 3,200 W Control system: Siemens Sinumerik 840 D SL Maximum sheet thickness: Steel (St): up to 20 mm Stainless steel (VA): up to 12 mm Aluminum (Al): up to 8 mm Gijdoxmpn Ujpfx Ah Nsr Maximum traverse speed: 140 m/min Positioning accuracy: 0.01 mm Dimensions: Length: 9,300 mm Width: 4,600 mm Height: 2,200 mm Weight: 12,000 kg Equipment: Automatic nozzle changer, voltage stabilizers included

Condition: used, Used Trumpf fiber laser for sale Used Trumpf fiber laser for sale Trumpf Trulaser 5030 Fiber 5kw flat bed industrial cnc laser for sale Year 2014 Laser Power 5000w / 5kw Working Range 3000 x 1500 x 115mm Control Siemens Sinumerik 840D Max. Mild Steel 25mm Max. Stainless Steel 20mm Max. Aluminium 15mm Space Requirement 12000 x 5200 x 2000mm Gjdpofuah Ejfx Ah Njir Machine Weight 14,500kg TRUMPF TruLaser 5030 5kW BrightLine Fiber – L56 / L68

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2006, operating hours: 59,480 h, laser power: 3,200 W, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 600 mm, swivel angle B-axis (max.): 100 °, swivel angle C-axis (max.): 360 °, No reserve price – guaranteed sale to the highest bidder! Predecessor model of the well-known TruLaser Cell series TECHNICAL DETAILS Category: 5-axis 3D laser cutting system Giedpexv Slhefx Ah Njr Condition: Fully serviced (twice annually by Trumpf UK) Last service: January 2019 New vacuum pump installed: 28/05/2019 Working Area X-axis: 3,000 mm Y-axis: 1,500 mm Z-axis: 600 mm B-axis (rotational axis): +100° C-axis (rotational axis): n x 360° Laser Source Model: TRUMPF TLF 3200 Turbo Laser power: 3.2 kW Pilot laser: Present (for programming support) Control & Software CNC control: Siemens 840D with 3.5" floppy disk drive Network connectivity: Available (including analog modem for remote maintenance) Software: ToPs 100 with nesting module & IGES translator + ToPs 800 with fixture design & 3D IGES translator MACHINE DETAILS Beam on: 14,922 h Laser on: 59,480 h Dimensions: 3.0 x 1.5 x 0.6 m EQUIPMENT - Logbook function for laser power monitoring - Power supply cabinets - Closed-loop water cooling with air circuit - 5” high-pressure cutting optics - Setup device - Class 1 laser safety housing with manual sliding door - Extraction unit with particle filter (2,000 m³/h) - Stationary worktable

Condition: good (used), functionality: fully functional, Year of construction: 2013, control type: CNC control, degree of automation: automatic, actuation type: electric, laser power: 4,000 W, sheet thickness steel (max.): 20 mm, sheet thickness stainless steel (max.): 15 mm, sheet thickness aluminum (max.): 10 mm, FOR SALE: TRUMPF TruLaser 3030 L20 (4000 W) – Precision and Flexibility Available for purchase is a reliable TRUMPF TruLaser 3030 L20 laser cutting machine from the year 2013. This model is highly regarded for its balance of speed and precision, making it an excellent choice for versatile production environments. Key Technical Details: Power: 4000 W Max. Working Range: 3000 x 1500 mm Giedpfjyluv Asx Ah Njr Positioning Accuracy: 0.03 mm/m Axis Speeds: Up to 140 m/min (simultaneous) Cutting Speeds: 0.8 – 26 m/min Material Capacities: Mild Steel: Up to 20 mm Stainless Steel: Up to 15 mm Aluminum: Up to 10 mm Special Features: Equipped with an open loading and unloading station, this machine allows for rapid switching between different sheet sizes, significantly increasing operational flexibility. It has been maintained within a high-standard production facility with a documented annual throughput of 800 tons.

Condition: good (used), functionality: fully functional, Year of construction: 2003, Do you have a problem with the resonator on your TRUMPF laser cutting machine with 5 kW output? Then you’ve come to the right place! TruFlow 5000 / 5 kW resonator for TRUMPF laser cutting machines (L 3050 / L 4050 / L 6050 / TruLaser 5030 / 5040 / 5060) Power measurement during machine dismantling: 5,462 W (end of October 2025) (The machine still delivered 4,930 watts at the cutting head. The resonator is in very good condition in terms of output.) Giodpfxjxzivbj Ah Nor Leak test: 0.02 hPa If you would like to replace your resonator or if you have issues with your turbine, feel free to contact us. All parts are available at short notice.

Condition: excellent (used), machine/vehicle number: 0386831, ControlLine / DIAS Plus PC - Distance control for TRUMPF laser cutting machines TRUMPF material no. 0386831 Models L2530 / L3030 / L4030 / L6030 / L3050 / L4050 / L6050 / TruLaser 3030 / 3040 / 3060 / 5030 / 5040 / 5060 etc. TruMatic 600L / 6000L / 7000L Gijdpfx Aeun S Dhoh Nsr used, fully functional. Available immediately!

Condition: used, Year of construction: 2015, TUBE LASER CUTTING MACHINE, Model LT8, made by ADIGE This tube laser cutting machine is in excellent working condition. Manufactured in 2015, it has been meticulously maintained, ensuring optimal performance. Technical data: - Round profiles diameter: 20 - 220 mm - Square profiles: Max. 200x200 mm - Max length: 8500 mm - Max tube weight: 32 kg/m Gijdeyma Itopfx Ah Njr - Laser Source: CO2 - Laser Power: 3 kW - Lens holders for: 5 & 7.5 “ - Bundle loader & Loading module: with 5 arms - Tube length loading: 8500 mm - Cutting head: 3D Tilt head - Max tube length unloading: 8500 mm - Unloading modules for tube lengths: 4500mm / 6500mm / 8500 mm - Front unloading conveyor for short parts: Up to 500 mm Scope of supply: - TRUMPF TruLaser Tube 5000 - Tube LoadMaster - Bundle loader with 8.5 m step loader - Finished part 8.5 m collecting table - Chiller - Extractor Special features - Machine integration Rofin - Rear scrap conveyor - Capable for open profiles - Handling option for delicate tubes - High speed pierce boost - Weld seam detection - Artube modules second licenses + USB hardware key - CAD – CAM - Artube adv CAM features - Direct import steps / Iges files - Post Processor LT8 for Artube (1st license) - Production time and Cost calculation - Artube Service Contract Annual Fee - Advanced edit - Part viewer - Cut and fold library - Booster drilling process - Remote tele-diagnostic - Siemens 12 months full warranty - Auto focusing head - Protube Express off line nesting and scheduling - Protube Enterprise productivity & machine monitor - Whole nbar processing software - Pierce booster edge detection Round profiles diameter: 20 - 220 mm Square profiles: Max. 200x200 mm Max length: 8500 mm Max tube weight: 32 kg/m Laser Source: CO2 Laser Power: 3 kW Lens holders for: 5 & 7.5 “ Bundle loader & Loading module: with 5 arms Tube length loading: 8500 mm Cutting head: 3D Tilt head Max tube length unloading: 8500 mm Unloading modules for tube lengths: 4500mm / 6500mm / 8500 mm Front unloading conveyor for short parts: Up to 500 mm