Used Mazak Ajv for sale (303)

Year of construction: 2007, condition: excellent (used), TOP CONDITION - OVERHAULED IN 2022! Year of construction: 2007 Table format: 3000 x 1500 x 100 mm Dcedpehturvefx Ahgji Power: 4000W 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 Dedpfx Ahshturcegoci incl. software incl. exhauster to test under power ! option: warranty, setup, training

Condition: ready for operation (used), Year of construction: 2005, spindle speed (max.): 5,000 rpm, travel distance X-axis: 230 mm, travel distance Z-axis: 575 mm, spindle motor power: 26,000 W, total height: 1,840 mm, overall weight: 5,100 kg, controller manufacturer: MAZATROL, number of axes: 3, This 3-axis Mazak Quick Turn NEXUS 200MS was manufactured in 2005. It features a maximum turning diameter of 380 mm, main spindle speed up to 5000 rpm, and a sub-spindle speed of 6000 rpm. The machine includes a Mazatrol 640T Nexus CNC control and has a robust design with dimensions of 2765x1780x1840 mm, weighing 5100 kg. If you are looking to get high-quality turning capabilities consider the Mazak Quick Turn NEXUS 200MS machine we have for sale. Contact us for more information. Dcjdpox D Rmtjfx Ahgoi Machine Benefits Technical Machine Benefits • Maximum turning diameter: 380 mm • Maximum bar diameter (main spindle): 65 mm • Maximum bar diameter (sub-spindle): 42 mm • Distance between spindles: 580 mm Extra Information Machine has only worked in small batch 1-shift production. Dimensions Machine Depth 2765 mm

Condition: used, Year of construction: 2017, turning diameter 340 mm Dcodpfx Ahey E Txdsgoi turning length 1000 mm control Mazatrol SmoothC

Condition: excellent (used), Year of construction: 2016, operating hours: 25,187 h, functionality: fully functional, The Mazak 3D Fabri Gear 400 II is a 6-axis 3D laser cutting machine designed for cutting tubes and profiles, specifically engineered for processing large-diameter materials and structural shapes. The 2016 model is typically equipped with a 4.0 kW Panasonic CO2 laser resonator and specialized 3D heads for complex cross-sections. Key technical parameters (2016 model): Laser type: 4.0 kW (4000 W) CO2 resonator Maximum material length: 12,000 mm (12 m) Maximum tube diameter: approx. 406 mm (16") Maximum square profile: 254 mm x 254 mm (10" x 10") Axes and movement: 6-axis control (X, Y, Z, A, B, C) Control unit: Mazak FX Maximum workpiece weight: approx. 480 kg Functions and capabilities: Material types: Carbon steel, stainless steel, and structural profiles (I-beams, channels, angles). 3D head: Rotatable 3D laser head with a touch sensor (probe) and an auto-focus system. Automation: Weld seam detection and automatic material measurement. Dcodpfx Aozg U Tpohgoi Optional equipment: Threading unit (enables cutting and threading in a single cycle) V-TYPE FEEDER Machine operating hours: 25,187 hours. Link to machine video:

Condition: good (used), Year of construction: 2008, turning length: 200 mm, turning diameter: 349 mm, Used Mazak Multiplex 6300Y CNC lathe Max turning diameter approx. 350 mm Max turning length approx. 200 mm Gantry loader max 2 x 40 kilograms 2 spindles, 3 axes per spindle + Y axis, C axis + M spindle Dodpfx Ahsyvgbxogjci Gantry loader, loading magazine, discharge conveyor

Condition: good (used), Year of construction: 2005, turning length: 200 mm, turning diameter: 350 mm, Used Mazak Multiplex 6300 Max turning diameter approx. Ø 350 mm Djdpfxey I Sfue Ahgoci Max turning length approx. 200 mm Many fine tools included "Auto operation" hours: 76,300 Gantry loader max. 2 x 40 kg 2 spindles, 2 axes per spindle (X/Z), C-axis, M-spindle Portal load and unload table

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2016, machine/vehicle number: OPTIPLEX FIBER II 4020, Manufacturer: Mazak Model: OPTIPLEX FIBER II 4020 Year: 2016 Type: 2D fiber laser for sheet metal cutting Design: Flying Optics Control: Mazatrol Preview G / Preview 3 CNC Laser source: Fiber IPG YLS/YDS Working area and dimensions of workpiece Maximum sheet size: Dcedpfezg U Akjx Ahgoi 4000 × 2000 mm 157.5" × 78.7" Maximum sheet weight: 1600–1920 kg Axis ranges X-axis: approx. 4075 mm (160.4") Y-axis: approx. 2060 mm (81.1") Z-axis: approx. 110 mm (4.33") Number of controlled axes: 3 Speeds and accuracy Rapid traverse X/Y: up to 120 m/min approx. 4724 ipm Positioning accuracy: ±0.05 mm / 500 mm Axis drive: X/Y: rack and pinion Z: ball screw Resonator power: 6 kW Maximum cutting thicknesses For the 6 kW version: Material Max. thickness carbon steel up to 25–26 mm stainless steel up to 25 mm aluminum up to 25 mm copper up to 12 mm brass up to 12 mm Standard / optional equipment Typical equipment: automatic pallet changer (2 tables) Multi-Control Torch automatic nozzle change automatic focus adjustment piercing monitoring automatic head calibration collision sensors dust extraction intelligent cutting process monitoring

Condition: used, Year of construction: 2004, x-travel 1300 mm Dodpfx Ahsyyc Svjgoci y-travel 510 mm z-travel 570 mm max. workpiece weight 1200 kg spindle turning speed range 12000 U/min weight of the machine ca. 7,1 t required space 5,00 x 3,20 x 3,00 m

Condition: excellent (used), With C-axis, with driven tools MAZAK Mazatrol 640T control Turning length -982 mm Swing Diameter -610 mm Turning diametre 264 mm Djdpfxsu R Nd Es Ahgoci Spindle speeds - 4'000 rpm Tool changer with 12 driven positions Misc. accessories MARCELS MASCHINEN CH

Condition: used, Year of construction: 2011, Pallet: 500 x 500 mm 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 Dodpfxoy H Dnxs Ahgjci 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: ready for operation (used), Year of construction: 2006, operating hours: 13,006 h, functionality: fully functional, machine/vehicle number: 190433, turning length: 1,050 mm, turning diameter: 660 mm, travel distance X-axis: 580 mm, travel distance Y-axis: 150 mm, travel distance Z-axis: 1,050 mm, controller model: Mazatrol Matrix, The technical data is based on manufacturer information. The seller cannot guarantee its accuracy! Operating times according to control system: Total: 5,025 h Automatic machining: 1,866 h Pure machining RV1: 1,037 h Pure machining RV2: 298 h Operating time: 13,006 h Tool type: Capto C6 Tool changer: 72 positions Turret: 9 positions Dimensions (L x W x H): approx. 5 x 3 x 3 m TECHNICAL DETAILS Max. turning diameter: 660 mm Diameter over bed: 760 mm Dcjdpfx Aoy Slqfshgji Turning length: 1,050 mm X-axis: 580 mm Y-axis: 150 mm Z-axis: 1,050 mm Main spindle speed: 5,000 rpm Counter spindle speed: 5,000 rpm Milling spindle: 12,000 rpm MACHINE DETAILS Control system: Mazatrol Matrix Main circuit: 3AC Main circuit voltage: 400 V Frequency: 50/60 Hz Control circuit AC: 100 V Control circuit DC: 24 V Main motor current draw: max. 84 A Main motor voltage: 400 V Rated power: 91.8 kVA Weight: 11,800 kg EQUIPMENT Bar feeder

Condition: ready for operation (used), Year of construction: 2005, operating hours: 41,000 h, functionality: fully functional, machine/vehicle number: 178979, turning length: 309 mm, turning diameter: 280 mm, travel distance X-axis: 190 mm, travel distance Z-axis: 330 mm, controller model: Mazatrol 640T Nexus, No minimum price – guaranteed sale to the highest bidder! The technical data is based on the manufacturer's specifications. The seller cannot guarantee its accuracy! TECHNICAL DETAILS Max. turning diameter: 280 mm Max. machining length: 309 mm Swinging diameter: 550 mm Travel range X-axis: 190 mm Travel range Z-axis: 330 mm Spindle bore: 61 mm Rapid traverse rates X/Z: 30/33 m/min MACHINE DETAILS Control system: Mazatrol 640T Nexus Main circuit: 3-phase AC Main circuit voltage: 400 V Frequency: 50/60 Hz Control circuit AC: 100 V Control circuit DC: 24 V Main motor current draw: 31 A Djdpfxey Sln Rj Ahgeci Main motor voltage: 400 V Rated power: 24 kVA Weight: 3,500 kg Operating hours: approx. 41,000 h Note: The bar feeder is not included in the offer.

Condition: ready for operation (used), Year of construction: 2001, functionality: fully functional, travel distance X-axis: 510 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 460 mm, controller model: Mazatrol Fusion 640M, spindle speed (max.): 12,000 rpm, TECHNICAL DETAILS Travel X-axis: 510 mm Travel Y-axis: 510 mm Travel Z-axis: 460 mm Swivel range A-axis: +30° / -120° Rotation range C-axis: +/- 360° Feed rate range (X-/ Y-/ Z-axis): 1 - 50,000 mm/min Rapid traverse (X-/ Y-/ Z-axis): 50 m/min Indexing A and C: 0.001° Swivel time 90° A/C: 1.9 / 1.5 s Main spindle Max. spindle speed: 12,000 rpm Spindle drive power: 22/15 kW Tool holder: ISO 40 Spindle diameter: 80 mm Acceleration time to max. speed: 1.7 s Worktable Clamping surface: 500 x 400 mm Number of T-slots: 5 T-slot width: 18 mm T-slot spacing: 80 mm Distance from spindle to table: 190 - 650 mm Max. workpiece size: 500 x 500 x 405 mm Max. table load: 300 kg Tool changer Max. number of tool positions: 40 Max. tool diameter: 80 mm Dcedpfxsyxmq Tj Ahgji Max. tool diameter with adjacent spaces free: 125 mm Max. tool length: 300 mm Max. tool weight: 8 kg Tool change time: 4.5 s MACHINE DETAILS Control: Mazatrol Fusion 640M Total power requirement: 51 kVA Dimensions & Weight Space requirement: 3.4 x 3.7 x 2.8 m Machine weight: 7.5 t EQUIPMENT Hydraulic unit Coolant system Chip tray Tool measurement Documentation

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2018, operating hours: 1,889 h, laser power: 2,000 W, sheet thickness steel (max.): 15 mm, sheet thickness stainless steel (max.): 8 mm, working length: 3,000 mm, working width: 1,500 mm, No minimum price – guaranteed sale to the highest bidder! The machine has been very well maintained, regularly cleaned, and serviced. It is in like-new condition! TECHNICAL DETAILS Laser power: 2,000 W Laser source manufacturer: IPG Laser type: Fiber laser Sheet metal thickness max.: 15 mm Sheet metal thickness steel max.: 15 mm Sheet metal thickness stainless steel max.: 8 mm Working length: 3,000 mm Working width: 1,500 mm Positioning accuracy: 0.001 mm MACHINE DETAILS Control type: CNC control Control manufacturer: Mazak Cooling type: Water Automation level: Automatic Chuck type: Electric Input voltage: 380 V Input current type: Three-phase Laser operating hours: 8,212 h Cutting hours: 1,657 h Year of last overhaul: 2024 EQUIPMENT CE marking Documentation/Manual Safety light curtain Rotary table Dcodpfsy Tvzksx Ahgei Extraction system

Condition: used, Year of construction: 2003, X-axis: 1 660 mm Y-axis: 510 mm Z-axis: 510 mm Control system: Mazatrol 640M Fast feed: 30 000 mm/min Feed rate: 8 000 mm/min Speed range: 40 - 12 000 rpm Table : 2 000 x 510 mm Number of T-slots: 5 T-slot size (ISO R299): 18 mm T-slot distance: 100 mm Max. table load: 1 000 kg Spindle distance to table: 180 - 690 mm Spindle center to stand: 530 mm Table height: 750 mm X-axis: 1 660 mm Dcodpjy Nlv Nofx Ahgji Y-axis: 510 mm Z-axis: 510 mm Control system: Mazatrol 640M Fast feeding: 30 000 mm/min Feeding: 8 000 mm/min Number of T-slots: 5 T-slot size (ISO R299): 18 mm T-slot spacing: 100 mm Max. board load: 1 000 kg Distance from spindle to table: 180 - 690 mm Spindle distance to table: 180 - 690 mm Fast feed: 30 000 mm/min Spindle center to stand: 530 mm Feed rate: 8 000 mm/min T-slot distance: 100 mm Max. table load: 1 000 kg Table height: 750 mm

Condition: good (used), Year of construction: 1999, functionality: fully functional, turning length: 2,500 mm, Mazak INTEGREX 50YR-2500U – Technical Data Machine type: CNC Turning/Milling Center / Multitasking Manufacturer: Mazak Dcsdpfxsyuucno Ahgei Control: MAZATROL PC-Fusion CNC 640MT Year of manufacture: 1999

Condition: ready for operation (used), Year of construction: 2021, spindle speed (max.): 4,000 rpm, travel distance X-axis: 450 mm, travel distance Y-axis: 200 mm, travel distance Z-axis: 960 mm, number of axes: 5, This 5-axis Mazak INTEGREX J-200 S was manufactured in 2021. It features a maximum machining diameter of 500 mm, X-axis travel of 450 mm, Y-axis travel of 200 mm, and Z-axis travel of 960 mm. The machine is equipped with a 36-tool magazine and a maximum spindle speed of 4,000 rpm. If you are looking to get high-quality mill-turn capabilities, consider the Mazak INTEGREX J-200 S machine we have for sale. Contact us for further details. • Control: Smooth G • Distance between spindles: 1000 + 440 mm • Max machining diameter: 500 mm • Spindle attachment: A2-6 • Max bar capacity: 65 mm • Spindle bore: 76 mm • Tool magazine: 36 Capto Additional equipment Dsdeyxc N Ejpfx Ahgsci • Chip conveyor: Mayfran belt type

Condition: used, Year of construction: 2003, LATHE MAZAK SUPER QUICK TURN 250 MAX. TURNING DIAMETER: 300 mm MAX. TURNING LENGTH: 550 mm Djdpfxeyuqbas Ahgjci CNC: MAZATROL 640 T SPINDLE MOUNT: ASA – 6 SPINDLE SPEED: 35 – 4,000 RPM SELF-CENTERING CHUCK DIAMETER: 250 mm SPINDLE BORE: 76 mm BAR CAPACITY: 65 mm TOOL MAGAZINE: 12 POSITIONS TRAVELS: X: 190 mm Z: 585 mm TAILSTOCK TOOL PRESETTING CHIP CONVEYOR COMPLETE WITH FULL DOCUMENTATION YEAR: 2003 WEIGHT: 5,000 kg

Condition: used, Year of construction: 2023, x-travel 3000 mm y-travel 820 mm z-travel 720 mm Control Mazatrol Smooth G spindle taper SK 40 spindle turning speed range 35 - 12.000 U/min spindle motor 15 kW distance spindle centre table top edge 140 - 860 mm table load 2500 Kg rapid travel x/y/z 50 m/min table width 3500 mm table length 820 mm table height over floor 870 mm T-slots 7 T-slot - width 18 mm T-slot - distance 100 mm tool change unit 48 tool changing time 4,7 sec wotkpiece diameter with 2 vacant positions 130 mm workpiece diameter at full load 80 mm max. tool weight 8 kg tool length - max. 350 mm air pressure - required 5 - 9 bar Air volume 260 l/min electrics - voltage/frequency 400 / 50 V/Hz coolant tank 500 l total power requirement 46,7 kW weight of the machine ca. 15,4 t dimensions of the machine ca. 5,3 x 3,6 x 3,3 m Djdpfx Ajyvvluohgeci Standard machine including the following optional extras: - Provision for dual oil mist extraction - Air cooling via the rotating milling spindle - 48-tool magazine - Pulse handwheel - 3-colour LED signal light - Additional work area lighting - Air blow-off device on the milling spindle - High-pressure coolant supply through the spindle (15 bar) - Provision for MAZAK Monitoring - Chip conveyor with left-hand ejection (Crowther) - Manual grease gun - Grease cartridge - Mazak API - Drilling cycle with automatic chip breaking - Synchronous thread cutting - Rapid traverse with constant angle of inclination STANDARD ACCESSORIES Adaptation for the European market USB port (1 port) Mazak standard colour Work area lighting SAFETY FEATURES Operator door with interlock switch Work area cladding The splash guard enclosure encloses the work area from the side. Fully enclosed work area Protection against chips, coolant and access to the work area during automatic machining. Safety precautions in accordance with global standards COOLANT SUPPLY Coolant supply via spindle (pump pressure = 5 bar) Complete coolant system includes pumps, valves, pipework and nozzles for the efficient production of high-quality components. FACTORY AUTOMATION Automatic start/stop and warm-up function Automatic activation of a warm-up via digital timer MEASURING SYSTEM Tool length measurement and tool breakage detection NUMERICAL CONTROL Horizontally adjustable NC control panel Relocation Detector Mazatrol SmoothG control 19" colour LCD screen (touch screen) Mazak Tornado tapping/drilling cycle (Mazatrol) EIA/ISO input function Tool path verification in the background 3D coordinate conversion Shape compensation for rotating axes Mazacc-2D software (contour correction) Mazacc-3D software package MAZACC-3D high-speed software package (NO456) is additionally required. Control system with high smoothing Interface for LAN SD memory card interface Smooth Standard Software for M/C - NO443 B) MAZACC-2D software (workpiece shape compensation) - NO444 D) MAZACC-3D high-speed software package - NO445 B) Shape compensation for rotating axes - NO497 D) High-precision control for finishing - Seamless corner point control - Variable acceleration control - Ultra-high-speed machining mode - NO498 Rapid traverse paths, rounding function Absolute positioning system - All dimensions, weights and performance specifications are subject to change - - Used machine without warranty - - Subject to prior sale -

Condition: good (used), Year of construction: 2016, functionality: fully functional, travel distance X-axis: 1,050 mm, travel distance Y-axis: 530 mm, travel distance Z-axis: 510 mm, rapid traverse X-axis: 42 m/min, rapid traverse Y-axis: 42 m/min, rapid traverse Z-axis: 42 m/min, nominal power (apparent): 41 kVA, total height: 2,808 mm, total length: 2,880 mm, total width: 2,929 mm, table width: 550 mm, table length: 1,300 mm, table load: 1,200 kg, rotational speed (max.): 12,000 rpm, overall weight: 6,800 kg, operating hours of spindle: 9,271 h, spindle nose: 150-660, tool length: 350 mm, tool diameter: 80 mm, input voltage: 400 V, type of input current: three-phase, Equipment: chip conveyor, Mazak Vertical Machining Center VCS 530C – Well-maintained, inspected & ready for immediate use For sale is a Mazak VCS 530C vertical machining center in excellent, well-maintained technical condition. The machine has undergone regular servicing and is in outstanding optical and mechanical shape. It is fully functional, thoroughly checked, and immediately ready for operation. The Mazak 530C stands out with its high-quality features, including a 4th axis, allowing complex workpieces to be machined precisely and efficiently, providing enhanced flexibility. Additionally, the automatic door offers increased user comfort, resulting in reduced setup times and increased safety during operation. The integrated coolant system (KSS unit) ensures optimum chip evacuation, which in turn leads to longer tool life and excellent surface finishes. Combined, these features deliver a powerful package focused on productivity, precision, and reliability. With our all-inclusive service package, we can personally handle the complete process upon request—from delivery to commissioning of your new machine. This includes unloading, placement, and precise alignment of the machining center. Thereafter, our experienced service technicians will carry out professional commissioning, perform all necessary function checks, and ensure that your Mazak VCS 530C operates reliably and accurately. We also offer tailored training programs for your staff so you can make optimal use of the machine from day one. Even after installation, we remain your competent point of contact—whether for maintenance, technical questions, or future upgrades. With our all-inclusive package, you have nothing to worry about—we ensure everything runs smoothly so you can focus completely on your production. Additionally, you can acquire extraction systems, attachments, and accessories from us, including high-quality Donaldson extraction units to make your production even more efficient and cleaner. Our service commitment: Quality, expertise, and customer satisfaction are our top priorities. Our team consists of qualified and experienced technicians specialized in Mazak machinery and other equipment. We place great emphasis on personal support and are happy to assist you any time, even after your purchase. You are also welcome to inspect and test the machine under power at our facility at any time. You are cordially invited to visit us and see for yourself the condition and functionality of the machine. Dcedpjy E Hhfjfx Ahgji With us, you are in the best hands—professional, reliable, and passionate about machinery! PS CNC Service Germany GmbH & Co. KG All specifications are subject to change without notice.

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 Dcedpfx Ahsy Tb D Dsgji 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.

Condition: used, Year of construction: 1991, spindle bore: 51 mm, bar passage: 51 mm, Mazak SQT-15MS CNC gantry Specifications * 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 Dcjdoy Snhmepfx Ahgoi 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: 2007, Make: MAZAK Type of machine: QuickTurn Nexus 250-II Year of manufacture: 2007 Control system: Mazatrol Matrix Nexus Machine's weight: 5.200 kg Tool holder: BMT Dsdpfxey I Uvij Ahgoci Speed range: 4.000 1/min Cutting diameter: 380 mm Turning length: 500 mm Tool turret - slots: 12 Pl. Spindle opening: 76 mm

Condition: excellent (used), functionality: fully functional, Year of construction: 2002, operating hours: 48,651 h, Mazak Space Gear-510 MKII 2.5 kW Year of manufacture December 2002 - after renovation!!! Very good condition! Meter reading 48651 hours Operating system Fanuc L-64 Djdpowqr Tdjfx Ahgeci