Used Gildemeister Ctx310 for sale (280)

Condition: used, Year of construction: 2007, turning diameter 246 mm turning length 445 mm control Fanuc 32 Dedpsxuv R Sofx Abzowa weight of the machine ca. 4250 kg

Condition: excellent (used), Year of construction: 2003, functionality: fully functional, I have for sale a renowned brand CNC LATHE GILDEMEISTER CTX 310 V3 with driven tools, C axis. _ Type: CNC Lathe Manufacturer: GILDEMEISTER Model: CTX 310 V3 Control: HEIDENHAIN 4290 + TURN PLUS Overlay Country of manufacture: Germany Year of manufacture 1999 _ Machine parameters: - head: 12 - tools for VDI 30 holders (Every second socket driven) - max. rpm 6300/min. - max. turning length in the Z axis: 455 mm - max. turning diameter in the X axis: 200 mm - C axis - driven tools - holder on the main spindle: Fi-200mm - max. shaft diameter Fi-51 mm - finished part collector - cooling system - chip conveyor - spindle drive power: 11 KW - DTR - machine weight: 3.2 tons _ WHY IS IT WORTH BUYING MACHINES in PPM? - we have our own service _ stationary and mobile - we have already sold over 700 DMG machines Dodjvmy Icjpfx Abzowa - possibility of starting the machine at the customer's - operator training and delivery of the machine to the customer included in the price - all our machines have undergone a professional technical inspection - 100% ready to work - purchase of the machine is possible through the installment system and leasing.

Condition: used, Year of construction: 2014, turning diameter 200 mm turning length 450 mm control Siemens 810D ShopTurn spindle bore diameter 51 mm Dwsdpjzr Rntefx Abzsa number of controlled axis 3 turning speed range 0 - 5.000 U/min power requirement 16,5 / 11 kW rapid speed 30 m/min number of tapers in turret head 12 VDI 30 number of driven tools in turret 6 Spindel speed of driven tools 4500 U/min Spindelpower on driven tool 8,4 kW tail stock Ja/ Yes weight 3,2 t dimensions 4,4 x 2,05 x 1,8 m CNC-Lathe with driven tool Only 3950 h spindle time! Equipment: - chipconveyor - 3-jaw chuck Kitagawa Ø 210 mm - some toolholders VDI 30 - 1 + 1 driven toolholder - programmable tailstock - DMG SLIMline Panel with ShopTurn - Signal lamp - tool measuring - programmable tailstock

Condition: used, Year of construction: 2002, turning diameter over cross slide: 260 mm, turning diameter: 200 mm, spindle speed (max.): 500 rpm, travel distance X-axis: 160 mm, travel distance Z-axis: 450 mm, rapid traverse X-axis: 20 m/min, rapid traverse Z-axis: 30 m/min, total height: 2,377 mm, total length: 4,165 mm, total width: 1,594 mm, overall weight: 3,200 kg, bar diameter (max.): 50 mm, For sale is a CNC turning machine with 6 driven tool positions, manufactured by Gildemeister, model CTX 310, from the year 2002. The machine is in good condition; of particular note are the low spindle hours and the measuring system. Technical data: Year of manufacture: 2002 Max. spindle speed: 5,000 rpm Speed at constant power: 833-3890 rpm Spindle power: 7.5 kW Chuck diameter: 210 mm Spindle bore: 68.5 mm Distance between centers: 581 mm Center height: 190 mm Diameter over machine bed: 330 mm Diameter over slide: 260 mm Swinging diameter: 200 mm Bar capacity: 50 mm Z-axis travel: 450 mm X-axis travel: 160 mm Rapid traverse Z: 30 m/min Rapid traverse X: 20 m/min Rapid traverse C1: 100 rpm Torque C1: 112 Nm Feed force Z: 4500 N Feed force X: 4500 N Number of axes: 2 Turret with tool drive from Sauter Tool positions: 12 Driven tool positions: 6 Cross-section of tools: 20*20 mm Speed of driven tools: 4200 rpm Power of driven tools: 4.2 kW Footprint (installed): 4,165 * 1,594 * 2,377 mm Footprint (transport): 3,190 * 1,600 * 1,700 mm Weight: approx. 3,200 kg Upon request, transport and loading can be arranged throughout Europe for an additional charge. Prices are plus VAT. Dwsdpfszkr Skjx Abzoa Inspection is possible by appointment. Contact us, our team will be happy to assist you. Trade-in or exchange is possible! Machine buying and selling PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES, ETC. Do you need a high-quality but affordable metalworking machine for your production? Or do you want to sell yours? For more information or contact options, visit our website.

Condition: used, Year of construction: 2003, turning diameter 210 mm turning length 580 mm control 840 D Siemens centre height 190 mm turning diameter over bed 330 mm turning dia. over face-slide 260 mm turning speed range - main spindle max. 4.000 min/-1 power capacity - main spindel 10 / 7,5 kW max. Torque 115 / 86 Nm spindle bore 68,5 mm max. usable bar diameter 51 mm C - Axis 0,001 ° travel -x axis 185 mm travel -z axis 455 mm number of toolpositions 12 pos. tool taper VDI 30 Driven Tool Stations: 6 pos. tailstock adjustment 400 mm intake pressure max. 4.000 N rapid traverse X: 20 / Z: 30 m/min Feed force ( X / Y / Z ) 4,5 kN total power requirement 21 kW weight of the machine ca. 3,2 t dimensions of the machine ca. 8,0 x 2,2 x 2,0 m CNC Turning- and Milling Center GILDEMEISTER - CTX 310 V3 Dwjdpfx Ajtqmmusbzja - incl. IRCO Breuning bar loader - incl. 2x chucks, incl. various jaws - incl. 63x VDI30 turning tool holders - incl. 7x driven tools - incl. 6x reduction tubes

Condition: ready for operation (used), Year of construction: 2003, operating hours: 5,137 h, spindle speed (max.): 6,000 rpm, travel distance X-axis: 202 mm, travel distance Z-axis: 450 mm, spindle motor power: 12,000 W, total height: 1,730 mm, total width: 1,563 mm, overall weight: 3,500 kg, controller manufacturer: SIEMENS, controller model: Sinumerik 840D powerline, product length (max.): 4,000 mm, number of axes: 3, This 3-axis Gildemeister CTX 310 was manufactured in 2003. It features a maximum turning diameter of 246 mm and a turning length of 445 mm. The machine is equipped with a spindle power of 12 kW and a maximum spindle speed of 6000 rpm. If you are looking to get high-quality turning capabilities, consider the Gildemeister CTX 310 horizontal turning machine we have for sale. Contact us for further details. • Availability: 2 units available • Spindle • Nose: FL 140 h5 • Max torque: 115 Nm (153 Nm at 40% S6) • Bore: 69 mm • Chuck diameter: 170 mm (optional 210 mm) • Bar capacity: Ø 50 mm • Working range • Swing over bed: 500 mm • Max turning diameter: 246 mm • Max turning length: 445 mm • Distance between centers: 600 mm • Turret and tools • Turret type: VDI 30 • Tool stations: 12 • Driven tools speed: 4200–5000 rpm (depends on control: Fanuc/Siemens/Heidenhain) • Driven tools power: 3.3–4.4 kW • Feeds and axis data • Rapid traverse (X/Z): 24/30 m/min • C-axis rapid: 100 rpm • Feed force (X/Z): 450 daN Dwsdpsympcaofx Abzea • Resolution (X/Z): 0.001 mm • Bed • Inclination: 45° • Material: Cast iron • Electrical and auxiliary • Supply voltage: 400 V (±10%), 50 Hz • Total installed power: 24 kVA • Hydraulic system pressure: 50 bar • Coolant tank capacity: 175 liters • Control systems (options): GE-FANUC 21i-TB, Siemens 840D, Heidenhain 4290 E Additional equipment • Chip conveyor (both units) • Extraction unit (one unit)

Year of construction: 2009, condition: ready for operation (used), Turning diameter: 200mm, passage diameter: 330mm, passage diameter over cross slide: 260mm, travel X/Z: 160mm/460mm, feed X/Z: 24m/min, speed: 5000rpm, spindle clearance: 51mm, spindle power: 16.5kW/11kW, torque: 1665.5Nm/112Nm, tailstock: 400mm, tool positions: 12. Machine dimensions X/Y/Z: approx. 4200mm/1700mm/2300mm, weight: approx. 3500kg, control: Siemens Sinumerik 810D. Including chip conveyor. Documentation available. On-site inspection is possible. Dwodpfx Ajv Dkb Iobzoa

Condition: excellent (used), Year of construction: 2006, operating hours: 8,513 h, functionality: fully functional, machine/vehicle number: 8042942323C, We are offering this refurbished Gildemeister CTX 310 V4 CNC SIEMENS 840 D SHOPTURN CNC turning and milling center, year of manufacture 2006. Serviced and prepared for transport Extensive tool accessories included, such as tool cabinets and measuring devices Dwodpfxoyvfq Se Abzja Year of manufacture: 2006 Weight: 3950 kg Maximum spindle speed: 6000 rpm Connected load: 26 kVA Max. connection current: 35 A Current: 38 A Mains voltage: 400 V Frequency: 50/60 Hz Control voltage: 230 V Control power consumption: 150 W Internal voltage: 24 V If you have any questions or need more information, please feel free to send us a message or call us.

Condition: used, Year of construction: 2004, functionality: fully functional, machine/vehicle number: 8038938456C, turning length: 450 mm, turning diameter over cross slide: 505 mm, turning diameter: 202 mm, spindle motor power: 10,000 W, spindle speed (max.): 6,000 rpm, spindle bore: 51 mm, Gildemeister CTX 310 Heidenhain Turn+ Dwsdpfxewk E Uzo Abzsa The machine its full functional, but have some miner isue.

Condition: excellent (used), Hello, I have for sale a DMG GILDEMEISTER CTX 310 V3 CNC LATHE with driven tools. TECHNICAL AND VISUAL CONDITION: Very Good Type: CNC Lathe Manufacturer: GILDEMEISTER Model: CTX 310 V3 Control system: Heidenhain Data Pilot 4290 Country of origin: Germany Year of manufacture: 2003 - Total machine operating hours: 9,144 h Machine specifications: - Turret: 12 tool positions for VDI-30 holders + TurnPlus attachment - Max spindle speed: 5,000 rpm - C-axis - Driven tools - Hydraulic tailstock - Through-spindle - Max turning diameter (X-axis): 190 mm - Max turning length (Z-axis): 455 mm - Cooling system - SMW AutoBlock three-jaw hydraulic chuck - Spindle bore diameter: 50 mm - Chip conveyor - Full programming manual - Mechanical and electrical documentation - Machine weight: 3.8 t - Loading included in the price The machine has undergone a full service inspection. 100% operational. Connected and ready for work. Djdey Rb H Hjpfx Abzowa Stal-Com has been engaged in sales, service, and training on DMG group CNC machines for 19 years. We specialize in all models of Gildemeister lathes as well as Deckel Maho machining centers. Every machine undergoes a meticulous technical check. Apart from Polish customers, our machines are also purchased by clients across Europe and parts of Asia. Each machine can be inspected in operation, as we also provide machining services. After purchasing a machine from us, we conduct operator training and can also set up production of parts at the customer's facility. We cooperate on a long-term basis with many companies, supplying them with further machine tools.

Condition: ready for operation (used), Year of construction: 2006, spindle speed (max.): 6,000 rpm, travel distance X-axis: 160 mm, travel distance Z-axis: 450 mm, overall weight: 3,950 kg, controller manufacturer: SIEMENS, controller model: 840D Powerline, number of slots in tool magazine: 12, number of axes: 2, Horizontal turning machine manufactured in 2006. This DMG GILDEMEISTER CTX 310 features a maximum spindle speed of 6000 rpm and a tool turret with 12 stations. With a power capacity of 24 kVA, this machine is designed for efficient performance. If you are looking to get high-quality turning capabilities, consider the DMG GILDEMEISTER CTX 310 machine we have for sale. Contact us for further details. - Total Power On Hours (Counter 1): 21887.4 h- Spindle/Run Hours (Counter 2): 11066.2 h- Power Capacity: 24 kVA- Max Current: 35 A (Jn max) / 38 A- Voltage: 400 V- Frequency: 50/60 Hz- Control Voltage: 24 V Technical Specification Counter Spindle No Driven Tools Yes Dwjdpfx Aezh E Akobzoa

Condition: ready for operation (used), Year of construction: 2007, operating hours: 65,176 h, functionality: fully functional, machine/vehicle number: 02260007541, turning length: 600 mm, turning diameter: 680 mm, spindle speed (max.): 5,000 rpm, controller model: Siemens 840 D, power: 25 kW (33.99 HP), No minimum price – guaranteed sale to the highest bidder! Dwedszpxgfepfx Abzoa TECHNICAL DETAILS Turning length: 600 mm Turning diameter: 680 mm Maximum spindle speed: 5,000 rpm MACHINE DETAILS Control system: Siemens 840D Spindle power: 25 kW Spindle operating hours: 65,176 h EQUIPMENT Chip conveyor Self-centering chuck: 250 mm diameter

Condition: ready for operation (used), functionality: fully functional, travel distance X-axis: 800 mm, travel distance Z-axis: 300 mm, chuck outer diameter: 250 mm, spindle bore: 79 mm, number of slots in tool magazine: 12, No minimum price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Dsdpszpxf Uefx Abzewa Travel in X-axis: 800 mm Travel in Z-axis: 300 mm Chuck diameter: 250 mm Spindle head: 170 h5 Spindle diameter at the front bearing: 120 mm Spindle bore: 79 mm Number of tool stations: 12 EQUIPMENT C-axis

Condition: ready for operation (used), Year of construction: 2002, operating hours: 63,040 h, functionality: fully functional, No minimum price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Dwodpfxozrgnpo Abzoa Machine configuration Upper linear slides: 2 units Milling unit: 1 unit Transverse drilling units: 2 units Rigid front spindle: 1 unit Machining units Drum 6: Movable only in the X-axis Front position 1: Rotationally rigid spindle, movable only forwards and backwards Front positions 2 to 4: Rotationally fully controllable spindles Front position 5: Internal machining axis for processing internal contours and radii Front position 6: Driven indexing spindle with rear machining slide and two tools, movable towards the viewing side Full electronic equipment Electronically connectable auxiliary drives on the front positions and six drum slides MACHINE DETAILS Operating hours: 98,119 h Spindle hours: 63,040 h EQUIPMENT Chip conveyor High-pressure coolant unit Bar loader Milling unit Two transverse drilling units Collets Spare parts Electronic components for the control cabinet New rigid front spindle

Condition: ready for operation (used), Year of construction: 2008, operating hours: 51,226 h, functionality: fully functional, turning length: 1,175 mm, spindle speed (max.): 5,000 rpm, controller model: HEIDENHAIN Plus iT, number of slots in tool magazine: 36, TECHNICAL DETAILS Dodpjzqfvvsfx Abzjwa Maximum spindle speed: 5,000 rpm Turning length: 1,175 mm Turning length with tailstock: 1,100 mm Tool holder: HSK 63A according to DIN 69893 Number of tool magazine positions (disc magazine): 36 MACHINE DETAILS Control system: HEIDENHAIN Plus iT with Turn Plus

Condition: used, Gildemeister CTX 320 Linear V6 with Y axis New 2005. FANUC 18T . Please note that the collet chuck shown in the image will not be included, the original 3 jaw chuck will be supplied. there is also the option to supply a bar feed unit which is compatible for the machine, however currently not set up. Dwsdpfxjztb Tcj Abzja

Year of construction: 2003, operating hours: 10,975 h, condition: used, total length: 4,500 mm, total width: 2,500 mm, total height: 2,300 mm, Colour: White Empty weight: 6.500 kg Price: On request - Year: 2003 - Documentation available: Yes - CE marking present: Yes - CE certificate present: Yes - Serial number: - Operating hours: 10975 - Drive system: CNC - Control system brand: Siemens - Control system type: Sinumerik 840D SL - Power [kW]: 25.0 - Centre height [mm]: 340 - Swing over bed [mm]: 680 - Carriage turning diameter [mm]: 565 - Distance between centres [mm]: 600 - Spindle bore [mm]: 65 Dedpozrxifjfx Abzewa - Min. spindle speed [rpm]: 0 - Max. spindle speed [rpm]: 5000 - Options: Chip conveyor, Three-jaw chuck - X-axis travel [mm]: 260 - Y-axis travel [mm]: 635 - Transport dimensions: 4500mm x 2500mm x 2300mm (l x w x h) - Transport weight [kg]: 6500kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: used, Year of construction: 2007, Technical details: turning diameter: 160 mm turning length: 300 mm control: Siemens 840D Spindle 1 Power: 22 kW Dodpfx Ajzd Tcwsbzjwa Spindle 1 RPM: 5000 1/min Spindle 1 max. bar diameter: 65 Spindle 1 Torque: 150 Nm Spindle 2 power: 16,8 kW Spindle 2 RPM: 5000 1/min Spindle 2 torque: 100 Nm Travel for pick up of 2nd Spindle: W2=690 mm dimensions of the machine ca.: ´4,5x2,0x2,3 m weight of the machine ca.: 9 t Accerories Spindle 1 Collet chuck Spindle 2 Collet Chuck Chip Conveyor Parts catcher CNC turning center with 3 turrets with rotary tool drives and 2 spindles. There is an internal coolant system for the turrets with individual pumps *

Condition: used, Year of construction: 2003, Technical details: turning diameter: 640 / 400 mm turning length: 1500 mm control: Siemens 840 D Powerline Travel turret No.1 (milling spindle) x/y/z: 550 / 180 (±90) / 1585 mm Swivle angle milling spindle (B-axis): ±120° interpol. ° Rapid traverse feeds turret 1 (milling head) x/y/z: 40/24/60 m/min RPM milling spindle: 12000 1/min power capacity - milling spindle: 12 / 23 kW Torque of milling spindle: 100 Nm Tool magazine for milling spindle (turret 1): 120 HSK-A 63 Tool change time tool/tool, milling spindle: 1,6 s Spindle 1 RPM: 4000 1/min Spindle 1 power: 36/ 45 kW Spindle 1 Torque: 730 Nm Spindle 1 max. bar diameter: 90 Spindle 2 RPM: 4000 1/min Spindle 2 power: 36 / 45 kW Spindle 2 torque: 730 Nm Djdpfx Aeyv Dnkobzjwa Spindle 2 max. bar diameter: 90 c-axis: 0,001 ° Travel turret 2 x: 225 mm Travel Turret 2 z: 1595 mm RPM of rotary tools turret 2: 4000 1/min no. of tools in turret 2: 12 VDI 40 high-pressure pump: 20 bar total power requirement: 110 kVA weight of the machine ca.: 24 t dimensions of the machine ca.: 9,3 x 4,6 x 3,1 m Accerories Chip conveyor Automatic door High performance turning and milling center with milling head (X, Y, Z, B-Axis), tool magazine with 120 pos. HSK-A 63. Excellent for manufacturing excentric parts. Coolant system with 1000 l tank and coolant system 4 kW. Both spindles have differencial pressure clamping system Steayrest for lower turret dia 8-101 mm. Parts gripper for turret No. 2 with 3-jaw chuck for parts with max. dia. 140 mm. Conveyor belt for finished parts. Preparation for 3D-probe Toolmonitor Artis Machine can be shown under power. *

Condition: excellent (used), Year of construction: 2010, operating hours: 3,624 h, functionality: fully functional, travel distance X-axis: 398 mm, travel distance Z-axis: 1,250 mm, rotational speed (max.): 3,000 rpm, We offer in good condition Gildemeister NEF 600 with Heidenhain control, please note customer removes 3-jaw chuck. Machine will be sold without 3-jaw chuck. Technical Data: Turning diameter: 600mm Dwjdpfx Aboxrg S Ijzsa Turning length: 1190mm Main spindle: Speed range – main spindle: 0 – 3,000 rpm Drive power – main spindle: 39.4 / 27.5 kW Max. torque: 430 Nm Spindle diameter at front bearing: 100 mm Spindle bore: 90mm Max. bar diameter: 75mm Turret: Number of tool stations: 12 pos - VDI 40 Travel: X-axis: 398mm Z-axis: 1250mm Tailstock : Tailstock travel: 1150mm

Condition: defective spare-parts repository (used), Year of construction: 2003, machine/vehicle number: 07400001041, Sales location: Landgrafenstraße 45, 41069 Mönchengladbach TWIN 102 Year of manufacture: 2003 Siemens 840 D Powerline Dsdpfx Abszn H D Ajzjwa Main spindle 33 KW, 3200 1/min Counter spindle 21 KW Travel distances: Saddle 1 X-axis 300 mm Y-axis 80 mm Z-axis 600 mm Turret, 12 positions, VDI 30, 12 driven Saddle 2 X-axis 180 mm Z-axis 650 mm Turret, 12 positions, VDI 30, 12 driven Saddle 3 X-axis 175 mm Z-axis 670 mm Tailstock Known faults: Z3-axis defective

Condition: good (used), Year of construction: 2001, functionality: fully functional, machine/vehicle number: 04780000161, Sales location: Landgrafenstraße 45, 41069 Mönchengladbach Machine: Twin 500 Machine number: 04780000161 Year of manufacture: 2001 Siemens 840 D Main spindle: 45 kW, 3200 rpm, swing: 610 mm, spindle distance: 1850 mm Djdezn H Dvspfx Abzowa Counter spindle: 45 kW, 320 rpm Travel ranges: Saddle 1 X-axis: 605 mm Y-axis: 210 mm B-axis: 240° Z-axis: 1470 mm Turning/milling spindle: 10 kW, HSK 63, 12000 rpm Saddle 2 X-axis: 267 mm Z-axis: 1440 mm Turret Saddle 3 Z-axis: 1460 mm Tool magazine: 80 positions

Condition: reconditioned (used), Year of construction: 2018, functionality: fully functional, CNC turning machine GILDEMEISTER CLX 350 V3 With DMG MORI SLIMline Multi Touch Fanuc I series control Year of manufacture: 2018 Dsdpjzd Dlpofx Abzjwa Turning diameter: 320 mm Travel in X: 242 mm Travel in Z: 540 mm Spindle bore: 65 mm Speed range: 20 – 5000 rpm With the following accessories: Sliding safety shield with interior lighting 12-station turret with 12 driven tool stations VDI 30 C-axis, tailstock with quill Programmable tailstock via M function Tool measurement in the work area Electronic handwheel Chip conveyor 3-jaw chuck, hydraulic, Schunk ROTA THW plus 0 210 mm Foot switch for chuck adjustment Parts catcher Glass scale in the X axis Coolant system with high-pressure pump 12 bar Coolant spray gun Operating manuals

Condition: good (used), Year of construction: 2001, turning diameter 320 mm turning length 750 mm control Heidenhain Manual Plus Number of working hours 18632 h longitudinal slide -travel 8/5000 mm Dodpozp Rw Ajfx Abzswa face slide travel 8/5000 mm/min rapid travel - longitudinal/face 8-10 m/min power feed longitudinal 6000 N power feed coss 3000 N weight of the machine ca. 2 t dimensions of the machine ca. 2,6x1,44x1,44 m Working Area: - Center height — 160 mm - Center distance — 750 mm - Max. swivel diameter over bed — 320 mm - Max. swivel diameter over cross slide — 150 mm Work Spindle: - Spindle head DIN — 55027 - Size — 6 - Internal taper — MK6 - Spindle diameter at front bearing — 85 mm - Spindle bore — 52 mm - Max. chuck diameter — 200 mm - Max. torque — 420 Nm Support: - Tooling system — Multifix - Tool cross-section — Size B - Number of bed slides — 1 - Number of cross slides — 2 - Longitudinal stroke — 700 mm - Cross slide travel — 185 mm Tailstock: - Quill taper — MK5 - Quill diameter — 70 mm - Max. quill travel (manual / automatic) — 120 / 8 mm --> Footprint — 2540 mm × 1690 mm

Condition: used, Year of construction: 1998, Spindle bore 56 mm (main spindle) Spindle speed (main) 31-6300 rpm Spindle speed (Sub) 5000 rpm Movements: Slide 1 - X/Z - 155/280 mm Slide 2 -X/Z - 82/130 mm Turret 1: 8 stations (4 rotating/live) - 120 rpm (C-axis) Turret 2: 8 stations Control: Siemens Sinumerik 840 C Equipped with: Chip conveyor Dwedszr Dn Hjpfx Abzea 30 pcs. tool holders 8 rotating tool holders Magazine bar feeder model Simag 65.1 - 3200 mm