Used Mazak H415 for sale (355)

Condition: used, Year of construction: 2011, Pallet: 500 x 500 mm Bsdey H Dnxepfx Ag Hewn X: 730 mm Y: 730 mm Z: 740 mm Maximum detail size: Ø 800 x 1000 mm Max load capacity: 700 kg Spindle speed: 12 000 r/min - High-torque Spindle effect: 22/30 kW , 300 Nm (AC40HP) CAT 40 Tool changer: 40 positions Interface for coolant system Prepare for probe OMP60 Cromar conveyor Synchronised tapping G00 slope constant EIA EIA 3D COMP Scaling included loading of machine included tools and cubes Mazak HC Nexus 5000-II: LxWxH: 475 x 238 x 285 cm Pallet: 500 x 500 mm X: 730 mm Y: 730 mm Z: 740 mm Max load capacity: 700 kg Tool changer: 40 positions

Condition: excellent (used), Year of construction: 2012, functionality: fully functional, travel distance X-axis: 1,660 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 510 mm, workpiece length (max.): 4,000 mm, workpiece width (max.): 655 mm, workpiece height (max.): 640 mm, workpiece weight (max.): 1,000 kg, spindle speed (max.): 12,000 rpm, coolant supply: 16 bar, input voltage: 400 V, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, For sale here is a Mazak VTC 200C II including a Kitagawa rotary table (4th axis). The machine is in very good condition and immediately ready for operation. Inspection under power is possible at any time. Transport and installation can be offered upon request. Technical Data: Control: MAZATROL 640M Machine width: 2819 mm Machine height: 2870 mm Machine weight: 9100 kg Table length: 2000 mm Table width: 510 mm X-axis travel: 1660 mm Y-axis travel: 510 mm Z-axis travel: 510 mm Equipment: Bwedpfxoy Ndzde Ag Hsn - Number of tools: 30 - Spindle power: 15 kW - Spindle speed: 12,000 RPM - Through-spindle coolant 16 bar - External coolant - Renishaw measuring probe OMP60 - Kitagawa 4th axis - Automatic warm-up function The main spindle was replaced or renewed in 2025.

Condition: ready for operation (used), Year of construction: 2014, travel distance X-axis: 560 mm, travel distance Y-axis: 430 mm, travel distance Z-axis: 510 mm, spindle speed (max.): 12,000 rpm, number of slots in tool magazine: 30, number of axes: 3, This 3-axis Mazak VCS 430A was manufactured in 2014. It features a maximum spindle speed of 12,000 rpm and a table size of 900 x 430 mm. The machine is equipped with a Mazatrol Smart CNC and has a tool capacity of 30 positions. If you are looking to get high-quality machining capabilities, consider the Mazak VCS 430A vertical machining centre we have for sale. Contact us for further details. • Table size: 900 x 430 mm Bjdpfoy Ncyfjx Ag Hswn Additional equipment • On-board tool presetter • Through-spindle coolant (refrigerant inside the spindle)

Condition: used, Year of construction: 2006, functionality: fully functional, Machine dimensions: 2.9m x 2.8m x 2.9m Machine weight: approx. 7 tons Year of manufacture: 2006 Travel ranges: X 1050 Y 530 Z 510 (150 above table) Spindle speed: max. 12,000 rpm Motor spindle: SK40 Measuring probe: Renishaw OMP 60 Measuring head: Mazak Internal cooling pressure: 25 bar External cooling Tool magazine: 30 positions Articulated belt conveyor Machine control: MAZATROL M640 • One machine each in left-hand and right-hand configuration (chip conveyor on the left or right) • Various tool holders can be purchased separately. Bsdey Tlu Tjpfx Ag Hewn • NO clamping devices (vices) included! • NO dust extraction system The stated price is for one machine only.

Condition: ready for operation (used), Year of construction: 2006, travel distance X-axis: 1,050 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 560 mm, controller manufacturer: MAZATROL, controller model: 640M, total height: 2,823 mm, total width: 3,160 mm, table load: 1,500 kg, overall weight: 8,900 kg, spindle speed (max.): 6,000 rpm, spindle motor power: 18,500 W, tool weight: 20,000 g, product length (max.): 3,436 mm, number of axes: 4, This 4-axis Mazak V515/40N was manufactured in 2006. It features a maximum workpiece dimension of 1,300 mm x 550 mm x 680 mm and a robust table size of 1,300 mm x 550 mm with a maximum table load of 1,500 kg. The machine offers a rapid traverse rate of 26 m/min in X/Y and 20 m/min in Z. If you are looking to get high-quality milling capabilities, consider the Mazak V515/40N vertical machining centre. Contact us for further details. • Milling capacity in S45 (JIS): 634 cm³/min • Drilling capacity in S45 (JIS): 50 mm • Table Size: 1,300 mm x 550 mm • Table Configuration: 5 T-slots, 100 mm distance, 18 mm reference groove • Table Height from Floor: 800 mm • Spindle Nose to Table: 200 mm - 760 mm • Spindle Center to Column: 525 mm • Rapid Traverse (X/Y): 26 m/min • Rapid Traverse (Z): 20 m/min • Feed Rate (X/Y/Z): 8 m/min • Min Spindle Speed: 25 rpm • Max Torque: 758 Nm • Max Tool Diameter: 125 mm (adjacent occupied) / 260 mm (adjacent free) • Max Tool Length: 400 mm • Chip-to-Chip Time: 5.5 s • Coolant Tank Capacity: 200 L • Coolant Pump Power: 0.75 kW • Connected Load (30 min/100%): 41.2 KVA / 36.2 KVA • Compressed Air Supply: 5 kg/cm², 200 L/min Additional equipment • Extraction System: Donaldson Torit DCE Bwedsy I Amvjpfx Ag Hen • Chip Conveyor: Mayfran

Condition: ready for operation (used), Year of construction: 2015, travel distance X-axis: 1,050 mm, travel distance Y-axis: 530 mm, travel distance Z-axis: 510 mm, controller manufacturer: MAZATROL, controller model: MATRIX 2, table width: 550 mm, table length: 1,300 mm, table load: 1,200 kg, overall weight: 7,700 kg, spindle speed (max.): 12,000 rpm, number of slots in tool magazine: 30, This 3-axis Mazak VCS 530C vertical machining center was manufactured in 2015. It features a robust Mazatrol MATRIX 2 control system, a table size of 1300x550 mm, and a maximum table load of 1200 kg. The spindle operates at speeds up to 12000 rpm with ISO 40 taper, and the machine includes a 30-position tool magazine and dual pallets. Consider the opportunity to buy this Mazak VCS 530C vertical machining center. Contact us for more information. Additional equipment • workpiece and tool probe • mist extraction • oil separator Machine Benefits Technical Machine Benefits • Cooling through spindle pressure: 15 bar • Number of pallets: 2 Bwodpfx Asy Iz Raog Hsn • The machine is in very good technical condition. Extra Information Machine still under power Technical Specification Taper Size ISO 40

Condition: good (used), Year of construction: 2006, functionality: fully functional, machine/vehicle number: 187859, turning diameter: 380 mm, spindle speed (max.): 5,000 rpm, rotational speed (max.): 4,500 rpm, bar passage: 65 mm, overall weight: 4,900 kg, Mazak QTN-200MS CNC turning and milling center, manufactured in 2006 with subspindle and driven tools Main spindle with Kitagawa chuck and Hainbuch collet chuck, 35-5000 rpm. Subspindle with Kitagawa chuck, 35-6000 rpm. All 19 tool holders, including 5 driven tools Jaws, collet chucks, wrenches and accessories shown in the photo are included. 12-position turret Parts catcher, chip conveyor >>Bar feeder FMB SL80 V (year 2020) >>Conveyor belt The machine has been very well maintained. Hydraulic oil, lubricants, and operating fluids have been recently changed. The machine can be inspected while in operation. Model: QTN-200MS Serial number: 187859 Weight: 4900 kg Weight: 10780 lbs Year of manufacture: 2006 If you have any questions or require further information, please send us a message or call us. Bwsdpfsy Tb D Dsx Ag Hon

Condition: used, Year of construction: 1997, travel distance X-axis: 1,300 mm, travel distance Y-axis: 1,100 mm, travel distance Z-axis: 1,000 mm, controller manufacturer: Mazatrol, overall weight: 36,000 kg, controller model: M-Plus, tool weight: 2,200 g, CNC Horizontal Machining Centre with Palletech Table size 800 x 800 mm. Table NCRT. Number of pallets 14. Bwedpfoy N A Euex Ag Hjn Movement x-Axis 1300 mm. y-Axis 1100 mm. z-Axis 1000 mm. Table indexing 0,001°. Number of tools in magazine 237 pieces. Maximum spindle speed 35-7.000 min. Tool taper DIN 69871A-50. CNC control M-plus If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: used, Year of construction: 2007, travel distance X-axis: 730 mm, travel distance Y-axis: 730 mm, travel distance Z-axis: 740 mm, workpiece weight (max.): 700 kg, controller manufacturer: Mazatrol, total height: 2,813 mm, total length: 5,985 mm, total width: 3,056 mm, overall weight: 11,000 kg, table length: 500 mm, table width: 500 mm, controller model: Matrix Nexus, spindle speed (max.): 18,000 rpm, Equipment: documentation/manual, CNC Horizontal Machining Centre CNC Control Mazatrol Matrix Pallet table size 500 x 500 mm Number of pallets 2 Table load 700 kg Movement X-Y-Z-axis 730x730x740 mm Table indexing 0,001 ° Spindle taper DIN 69871A-40 Spindle speed 18.000 1/Min Bodoy N Addspfx Ag Hswn Spindle motor 35-26 kW Magazin capacity 80 If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail.

Condition: used, Year of construction: 2001, travel distance X-axis: 710 mm, travel distance Y-axis: 610 mm, travel distance Z-axis: 660 mm, controller manufacturer: Mazatrol, total height: 3,050 mm, total length: 7,109 mm, total width: 7,805 mm, overall weight: 11,600 kg, table length: 500 mm, table width: 500 mm, controller model: Fusion 640 M, rotational speed (max.): 15,000 rpm, rotational speed (min.): 35 rpm, spindle speed (max.): 15,000 rpm, spindle speed (min.): 35 rpm, table load: 500 kg, Horizontal Machining Centre with Palletech CNC Control Mazatrol Fusion 640M Pallet table size 500 x 500 mm Number of pallets 10x Table load 500 kg Bsdjy Nz Iuepfx Ag Hjwn Movement X-axis 710 mm Movement Y-axis 610 mm Movement Z-axis 660 mm Table indexing 360 x 1° Spindle Taper DIN 69871A Spindle speed 35 - 15.000 R/min Magazin capacity 120 If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: used, Year of construction: 2006, travel distance X-axis: 1,050 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 560 mm, controller manufacturer: Mazatrol, total height: 2,700 mm, total length: 3,445 mm, total width: 3,301 mm, overall weight: 8,900 kg, table length: 550 mm, table width: 1,300 mm, controller model: 640 M, spindle speed (max.): 6,000 rpm, spindle speed (min.): 25 rpm, Equipment: documentation/manual, CNC Vertical Machining Centre Bjdpoy Nz Etofx Ag Hewn CNC Control: Mazatrol 640M Table size: 1300 x 550 mm Table load: 1500 kg Movement X-Axis: 1050 mm Movement Y-Axis: 510 mm Movement Z-Axis: 560 mm Spindle taper: MAS BT 50 Spindle speed: 25 -6000 1/min. Magazine capacity: 30 positions Weight of the machine: 8900 kg If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock.

Condition: used, Year of construction: 2004, travel distance X-axis: 730 mm, travel distance Y-axis: 730 mm, travel distance Z-axis: 740 mm, controller manufacturer: Mazatrol, total height: 3,050 mm, total length: 7,805 mm, total width: 7,109 mm, overall weight: 11,600 kg, table length: 500 mm, table width: 500 mm, controller model: Fusion 640 M, spindle speed (max.): 12,000 rpm, tool weight: 700 g, Equipment: documentation/manual, CNC Horizontal Machining Centre CNC Control Mazatrol 640M Pallet table size 500 x 500 mm Number of pallets 10 Table load 700 kg Movement X-axis 730 mm Movement Y-axis 730 mm Movement Z-axis 740 mm Table indexing 360 x1 ° Spindle Taper CAT 40 Spindle 12.000 1/min Spindle motor 22/15 kW Magazin capacity 80 Required floor space 9850 x 10145 mm If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail. Feel free to view our other advertisements for a complete overview of our stock. Bodpfx Agjy Nzraj Hswn

Condition: used, Year of construction: 2004, turning diameter: 660 mm, spindle speed (max.): 5,000 rpm, spindle speed (min.): 35 rpm, travel distance X-axis: 580 mm, travel distance Y-axis: 160 mm, travel distance Z-axis: 1,045 mm, total height: 2,600 mm, total length: 3,820 mm, total width: 2,060 mm, overall weight: 10,400 kg, CNC Turning Milling centre with Second Spindle CNC Control Mazatrol PC Fusion CNC 640 MT PRO Turning diameter 550/660 mm Turning length 1016 mm Spindle bore diameter 65 mm Spindle speed 35-5000 R/min X-axis movement 580 mm Bodpfx Ajy Nytpog Hewn Y-axis movement 160 mm Z-axis movement 1045 mm B-axis travel 225 ° mm C-axis indexing 360° Spindle nose A2-6 Tool Taper Capto C6 Number of tools in magazine 40 If you have any questions concerning the machine, please do not hesitate to contact us by phone or e-mail.

Condition: excellent (used), Year of construction: 2019, MAZAK QUICK TURN 350MB 1250U Max. swing diameter: 830 mm Max. turning diameter: 420 mm Max. turning length: 1,250 mm Max. milling speed: 5,000 rpm Max. spindle speed: 3,300 rpm Bedpfx Agoy Igz De Hswn Machine is equipped with: - CNC control Mazatrol SmoothG - SMW three-jaw chuck KNCS 400, diameter 400 mm - Tool Eye - C-axis - NC tailstock - Reinforced coolant pump - Chip conveyor - 8 pcs. fixed tool holders - 2 pcs. driven tool holders

Year of construction: 2007, condition: excellent (used), TOP CONDITION - OVERHAULED IN 2022! Year of construction: 2007 Table format: 3000 x 1500 x 100 mm Power: 4000W Bwedpfx Agshturve Hjn Control: Mazatrol preview with LAN / USB incl. cooler incl. linear drives on all axes incl. programming software incl. training incl. commissioning incl. quick piercing incl. ball roller table incl. 4 x head change magazine incl. 2 cutting heads incl. 10 x automatic nozzle changer FE: up to 20mm VA: up to 12mm oxide-free designed for high pressure cutting up to 20 bar No Foundation is necessary! Optional automatic loading and unloading by Mazak CELL510 could be offered with warranty / commissioning / training always regularly serviced

Year of construction: 2001, condition: refurbished (used), low price laser cutting machine NTX48 1,5kW refurbished, MAZAK lasercutting machine with 1500W table size: 2500mm x 1250mm machine dimension 2,6m x 6m parts conveyor full covered machine table FE: 12mm VA: 6mm plastics possible to cut incl. software incl. exhauster to test under power ! Bwjdpohturcjfx Ag Hon option: warranty, setup, training

Year of construction: 2012, condition: refurbished (used), MAZAK laser cutting machine STX510 MkIII 4kW ==TOP CONDITION – OVERHAULED 2023== year: 2012 refurbished, MAZAK lasercutting machine with 4000W table size: 3000mm x 1500mm machine dimension 2,9m x 7,3m chip conveyor LAN / USB connection automatic nozzle change fast piercing in heavy materials piercing sensor plasma sensor for stainless steel cutting Bedpenwmw Sofx Ag Hown burning sensor for mild stelle cutting full covered machine table FE: 22mm VA: 15mm ALMG: 10mm plastics possible to cut incl. software incl. exhauster == option: warranty, setup, training == == option: fully automatic loading/unloading CELL system ==

Condition: used, functionality: fully functional, Year of construction: 2016, operating hours: 6,721 h, control type: CNC control, degree of automation: automatic, actuation type: electric, controller manufacturer: Mazak, controller model: Preview 3, laser type: fiber laser, laser source manufacturer: IPG, laser source model: CUT, laser hours: 6,721 h, laser power: 3,000 W, laser wavelength: 1,064 nm, sheet thickness (max.): 20 mm, sheet thickness steel (max.): 20 mm, sheet thickness stainless steel (max.): 8 mm, sheet thickness aluminum (max.): 4 mm, table length: 3,050 mm, table width: 1,515 mm, working length: 3,050 mm, working width: 1,515 mm, positioning speed: 60 m/min, positioning accuracy: 0.001 mm, repeat accuracy: 0.001 mm, type of cooling: water, overall weight: 12,000 kg, warranty duration: 6 months, year of last overhaul: 2025, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, For sale: a reliable Mazak Optiplex Nexus Fiber laser cutting machine priced at €110,000. The machine has minimal mileage and has been serviced by us since day one. The laser is available immediately, free of bank charges. We provide a 6-month warranty on the machine, extendable to 12 months. Comprehensive machine relocation within Poland is available for a maximum price of 33,000 PLN Relocation is available throughout the EU. An original Mazak EMC loading and unloading system is available for €50,000. Cutting tests are available at any time. Machine details: Brand: Mazak Model: Optiplex Nexus Fiber Power: 3kW IPG Year of manufacture: 2016 Source on time: 6721h Controller on time: 7750h Automatic operation time: 3357h Mazak Control Torch 1.0 head with nozzle cooling option Controller: Mazak Preview 3 Automatic nozzle changing with 8-nozzle magazine Automatic focus Intelligent head functions 2 interchangeable tables with sheet lifter Donaldson Spark4Pro dust collector IPG source and cooler Collimator Group provides comprehensive service for Mazak laser machines. From service to sales. If you are interested in a different model, higher power, or a different budget, please contact us. Bsdpfx Aeyguc Esg Hown Collimator-group.pl

Condition: excellent (used), Year of construction: 2024, MAZAK INTEGREX i-100H Max. machining diameter: 600 mm Max. machining length: 590 mm Bwjdpfx Agoy Hwn Ee Hsn Max. milling speed: 12,000 rpm Max. spindle speed: 6,000 rpm Machine is equipped with: - CNC control Mazatrol SmoothAi - Tool magazine for 74 tools - KITAGAWA 3-jaw chuck B-206, diameter 169 mm - Tool Eye - C-axis input accuracy 0.0001° - Y-axis - B-axis 0.0001° - 5-axis machining package for SmoothAi - Reinforced coolant pump 15 bar - Chip conveyor, side discharge

Condition: ready for operation (used), Year of construction: 2006, operating hours: 32,790 h, functionality: fully functional, travel distance X-axis: 2,032 mm, travel distance Y-axis: 750 mm, travel distance Z-axis: 750 mm, table load: 3,000 kg, spindle speed (max.): 6,000 rpm, TECHNICAL DETAILS Travel X-Axis: 2,032 mm Travel Y-Axis: 750 mm Travel Z-Axis: 750 mm Max. workpiece height: 870 mm Max. table/workpiece load: 3,000 kg Table width: 800 mm Table length: 2,240 mm Spindle speed: 40 – 6,000 rpm Spindle taper: SK 50 Standard spindle power: 18.5 kW Standard torque: 759 Nm Increased spindle power: 26 kW Increased torque: 1,067 Nm MACHINE DETAILS Control system: MAZATROL Dimensions & Weight Dimensions (L x W x H): 5,685 mm x 4,096 mm Weight: 14,000 kg Operating hours: 32,790 h Bwedpfjy Hkhrsx Ag Hjn EQUIPMENT Measuring probe (manufacturer: Renishaw) Chip cart 47 SK50 tool holders, including approximately 25 Weldon holders Emulsion cleaning unit

Condition: used, Year of construction: 1991, spindle bore: 51 mm, bar passage: 51 mm, Mazak SQT-15MS CNC gantry Specifications Bsdpfxoy Snhmo Ag Hown * Manufacturer: Mazak * Model: SQT-15MS * Year: 1991 * Control: Mazatrol T-32 * 12-position turret * Live tooling * Sub spindle * Machine weight: approx. 5,500 kg Condition The machine has been used in production and is sold in working condition unless otherwise agreed. Inspection under power can be arranged upon request. Additional Information * Loading assistance can be arranged at additional cost. * More photos and videos available upon request.

Condition: ready for operation (used), Year of construction: 2008, spindle speed (max.): 3,300 rpm, spindle motor power: 30,000 W, overall weight: 9,100 kg, controller manufacturer: MAZATROL, controller model: Mazatrol Matrix, number of axes: 3, This 3-axis Mazak QT Nexus 350 II M was manufactured in 2008. It features a Mazatrol Matrix control unit, a maximum swing over bed of Ø 830 mm, and a turning length of 1500 mm. The spindle supports speeds up to 3300 rpm with a power of 30 kW. It includes a chip conveyor and tool presetter. If you are looking to get high-quality turning capabilities, consider the Mazak QT Nexus 350 II M machine we have for sale. Contact us for more information. Bwedpfex D I Risx Ag Hjn Additional equipment • Chip conveyor • Tool presetter • Autoblock chuck • Toolholders • User and maintenance manuals Machine Benefits Technical Machine Benefits • Max. Turning diameter: Ø 420 mm • Max. Turning length: 1500 mm • Bar capacity: Ø 102 mm • Spindle nose: asa 11” • Chuck type: autoblock Ø 315 mm • Tool size: 25 × 25 mm / Ø 50 mm • Driven tool motor power: 7. 5 kw • Max. Speed of driven tools: 4000 rpm Extra Information Machine still under power

Condition: used, Year of construction: 2009, operating hours: 3,628 h, functionality: fully functional, machine/vehicle number: 213294, workpiece length (max.): 1,000 mm, The Mazak INTEGREX 200-IV T is an advanced 5-axis turning and milling center that combines turning and milling functions in a single machine, and is used in the aerospace, automotive, and tool manufacturing industries. The machine is in very good condition; it was operated 5 days a week for 8 hours a day. It has been used sporadically in recent years. The machine is being sold due to the closure of a service facility. The last photo shows the total operating time. The screenshot is from a year ago, but the machine has not been used since then. Bsdpjv R Uv Aefx Ag Hown

Condition: good (used), Year of construction: 2008, functionality: fully functional, machine/vehicle number: 185273, turning diameter: 610 mm, spindle motor power: 26,000 W, spindle speed (min.): 35 rpm, spindle speed (max.): 4,000 rpm, spindle bore: 88 mm, travel distance X-axis: 740 mm, travel distance Y-axis: 410 mm, travel distance Z-axis: 1,838 mm, rotational speed (max.): 12,000 rpm, rotational speed (min.): 15 rpm, overall weight: 17,600 kg, Mazak Integrex E410H-II 2008mod Mazatrol Matrix Bwsdoy T Hxgspfx Ag Hon The price its without dismantling

Condition: good (used), Year of construction: 2015, functionality: fully functional, Description: The machine is in good technical condition, and a test run is possible by prior agreement. Matrix NEXUS 2 – control system Pallets: 2x YES. Chip conveyor: Yes. ATC: YES. High pressure 70 Bar. Spindle operating time: 10,125 hours. • Total power-on hours: 32,348 hours. Pallet size: 630 × 630 mm. Number of pallets: 2. Max. workpiece dimensions: Ø 1050 × 1300 mm. Max. pallet load: 1,500 kg. Travel X: 1,050 mm. Travel Y: 900 mm. Travel Z: 980 mm. 4th axis: Yes (NC rotary table). Spindle taper: BT50 / CAT50. Spindle speed: 8,000 rpm (standard), optionally 10,000 rpm. Spindle power: approx. 37 kW. Tool magazine: 40–120 positions. Control system: Mazatrol Matrix Nexus 2. Type of operation: Serial production machining. Typical applications: Housings, cast iron, steel, automotive. Machine weight: approx. 20–22 t. Automatic pallet changer: Yes. Bwjdpfxoy Rgcyj Ag Hjn