Used Mikron Gear Hobber for sale (6,897)

Condition: used, Year of construction: 1982, x-travel 400 mm Nljdpfx Aou U Sabekujb y-travel 400 mm z-travel 380 mm total power requirement 2,6 kW weight of the machine ca. 1,5t t

Condition: used, Year of construction: 1992, max. wheel diameter 150 mm gear width 300 mm max. module 4,5 min. module total power requirement 20 kW weight of the machine ca. 6 t dimensions of the machine ca. m Nlodpfjt Hwxbsx Akuob

Condition: used, Year of construction: 1997, x-travel:710 mm y-travel:630 mm z-travel:500 mm turning speed range - spindle:5 - 5000 1/min power - main spindle:11 kW tool taper:SK 40 tool changer:44 Werkzeuge feed:10 m/min surface area:1200 x 600 mm table load:0,5 t total power requirement:15 kVA Nledpelu N Hijfx Akujb weight of the machine ca.:4,24 t Toolchanger with 44 tools, pendant handwheel for easy setup.

Condition: used, Year of construction: 1980, x-travel:500 mm y-travel:500 mm z-travel:400 mm turning speed range:30 - 2240 U/min feeds -stepless-:1 - 750 mm/min rapid traverse:1500 mm/min table surface area:400 x 800 mm tool taper:SK 40 total power requirement:7,8 kW weight of the machine ca.:1.8 t dimensions of the machine ca.:2,1 x 1,6 x 2,2 m Nljdpfxecxxq Dj Akusb

Condition: used, Year of construction: 1989, machine/vehicle number: 6766, x-travel:560 mm y-travel:500 mm Nodpfecxxpqjx Akuelb z-travel:400 mm table-size:900 x 530 mm control:Heidenhain TNC 355 B/Q tool taper:ISO 40 / M 16 turning speed range:40 - 4000 U/min rapid traverse X-axis:6 m/min rapid traverse Y-axis:6 m/min rapid traverse Z-axis:5 m/min feeds x/y/z -stepless:2 - 3000 mm/min total power requirement:9 kW weight of the machine ca.:2,6 t dimensions of the machine ca.:2,6 x 1,8 x 2,2 m

Condition: ready for operation (used), Year of construction: 2007, operating hours: 1,889 h, functionality: fully functional, travel distance X-axis: 860 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 600 mm, spindle speed (max.): 10,000 rpm, number of axes: 3, Machining centre with only 1,889 spindle hours! TECHNICAL DETAILS Travel X-axis travel: 860 mm Y-axis travel: 560 mm Z-axis travel: 600 mm Nledsw Ngmuopfx Akujb Spindle data Max. spindle speed: 10,000 rpm MACHINE DETAILS Spindle hours: 1,889 h Power-on hours: 42,782 h Number of controlled axes: 3 Control model: HEIDENHAIN iTNC530

Condition: not inspected (used), Year of construction: 2001, operating hours: 3,260 h, functionality: unexamined, machine/vehicle number: 730, travel distance X-axis: 1,350 mm, travel distance Y-axis: 1,150 mm, travel distance Z-axis: 685 mm, workpiece weight (max.): 1,500 kg, spindle speed (max.): 12,000 rpm, No reserve price – guaranteed sale to the highest bidder! By placing a bid, you are committing to collecting the item within the specified period: between 01.12.2025 and 05.12.2025. TECHNICAL DETAILS Travel distances X-axis travel: 1,350 mm Y-axis travel: 1,150 mm Z-axis travel (vertical): 685 mm Z-axis travel (horizontal): 870 mm Spindle Main spindle speed: 0 – 12,000 rpm Acceleration time: approx. 2.5 s Tool holder: HSK-A63 Tool Data Tool magazine: 46-position changer Number of magazine stations: 46 Njdpfxsxxzqro Akuolb Max. tool diameter (full magazine): 80 mm Max. tool diameter (partial magazine): 130 mm Max. tool weight: 8 kg Max. tool length: 300 mm Max. magazine load: 200 kg Chip-to-chip time: 9–12 sec H/H Feeds and Rapid Traverses Rapid traverse X, Y, Z: 30 m/min Table NC rotary table diameter: 1,100 mm Clamping surface: Ø 1,100 x 1,000 mm Table load: 1,500 kg Centering bore: Ø 50H6 Table height above floor: approx. 1,120 mm Swivel axis (A-axis): +15° to -120° Control: HEIDENHAIN TNC 426 MACHINE DETAILS Spindle hours: 3,260 h Machine operating hours: 82,797 h Dimensions & Weight Machine weight: approx. 12,000 kg Space requirement (L x W x H): 4,130 x 3,680 x 3,150 mm EQUIPMENT RENISHAW OMP60 probe system Technical documentation Note: Transport is expected to be carried out by a truck with a loading width of 3,000 mm.

Condition: not inspected (used), Year of construction: 2000, operating hours: 6,191 h, functionality: unexamined, machine/vehicle number: 7158, travel distance X-axis: 1,000 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 600 mm, spindle speed (max.): 15,000 rpm, number of slots in tool magazine: 46, No reserve price – guaranteed sale to the highest bidder! Bidding obligates buyers to collect the machine within the specified period: between 01.12.2025 and 05.12.2025! TECHNICAL DETAILS Spindle Spindle speed: max. 15,000 rpm Tool Data Tool magazine: 46 stations Tool holder: ISO-B40 Travel Paths X-axis travel: 1,000 mm Y-axis travel: 600 mm Z-axis travel: 600 mm Table Nedexxzpuopfx Akuslb NC rotary tilting table diameter: 800 mm Rotary Axis Nominal speed: 3,000 rpm Static torque (100K): 27 Nm Permissible transport load (with clamped tilting axis): 10,000 N Rotary axis speed: 12 rpm Tilting Axis Nominal speed: 3,000 rpm Static torque (100K): 27 Nm Permissible transport load (5-axis operation): 5,000 N Maximum rotary axis speed: 4 rpm Control: HEIDENHAIN TNC 426 MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 5,200 x 2,900 x 3,000 mm Weight: 7,500 kg Spindle hours: 6,191 h Machine on-time hours: 26,997 h EQUIPMENT Technical documentation SK 40 holders ATORN 3D probe Note: The tool holders visible in the images are included in the scope of sale and delivery. The tools clamped in these holders, such as drills, reamers, milling cutters etc., are not included in the scope of sale or delivery. The drive for the head tilting axis is missing.

Condition: not inspected (used), Year of construction: 2001, operating hours: 3,260 h, functionality: unexamined, machine/vehicle number: 730, travel distance X-axis: 1,350 mm, travel distance Y-axis: 1,150 mm, travel distance Z-axis: 685 mm, workpiece weight (max.): 1,500 kg, spindle speed (max.): 12,000 rpm, No reserve price – guaranteed sale to the highest bidder! The payment deadline for the machine is 20.11.2025! Bidding obligates the buyer to collect the machine within the specified period from 01.12.2025 to 05.12.2025! TECHNICAL DETAILS Travel distances Travel X: 1,350 mm Travel Y: 1,150 mm Travel Z (vertical): 685 mm Travel Z (horizontal): 870 mm Spindle Working spindle speed: 0 – 12,000 rpm Acceleration time: approx. 2.5 s Tool holder: HSK-A63 Tool data Tool magazine: 46-position changer Number of magazine positions: 46 Max. tool diameter (all positions): 80 mm Max. tool diameter (some positions): 130 mm Max. tool weight: 8 kg Nsdpfjxm Tx Djx Akuelb Max. tool length: 300 mm Max. magazine load: 200 kg Chip-to-chip time: approx. 9–12 sec, tool-to-tool Feed rates and rapid traverse Rapid traverse X, Y, Z: 30 m/min Table NC rotary table diameter: 1,100 mm Clamping surface: Ø 1,100 x 1,000 mm Table load capacity: 1,500 kg Centering bore: Ø 50H6 Table height above floor: approx. 1,120 mm Swivel axis (A-axis): +15° to -120° Control system: HEIDENHAIN TNC 426 MACHINE DETAILS Spindle hours: 3,260 h Machine on-time: 82,797 h Dimensions & weight Machine weight: approx. 12,000 kg Required space (L x W x H): 4,130 x 3,680 x 3,150 mm EQUIPMENT RENISHAW OMP60 probe Technical documentation Note: Transport will likely be arranged via truck with a loading width of 3,000 mm.

Condition: not inspected (used), Year of construction: 2000, operating hours: 6,191 h, functionality: unexamined, machine/vehicle number: 7158, travel distance X-axis: 1,000 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 600 mm, spindle speed (max.): 15,000 rpm, number of slots in tool magazine: 46, No minimum price – guaranteed sale to the highest bidder! The payment deadline for the machine is 20.11.2025! Bidding obligates you to timely collection between 01.12.2025 and 05.12.2025! TECHNICAL DETAILS Spindle Spindle speed: max. 15,000 rpm Tool data Tool magazine: 46 positions Tool holder: ISO-B40 Travel distances X-axis travel: 1,000 mm Y-axis travel: 600 mm Z-axis travel: 600 mm Table NC rotary tilting table diameter: 800 mm Rotary axis Nominal speed: 3,000 rpm Holding torque (100K): 27 Nm Permissible load during transport (with clamped tilting axis): 10,000 N Rotary axis speed: 12 rpm Tilting axis Nljdpoxm Txkofx Akueb Nominal speed: 3,000 rpm Holding torque (100K): 27 Nm Permissible load (5-axis operation): 5,000 N Maximum rotary axis speed: 4 rpm Control: HEIDENHAIN TNC 426 MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 5,200 x 2,900 x 3,000 mm Weight: 7,500 kg Spindle hours: 6,191 h Power-on hours: 26,997 h EQUIPMENT Technical documentation SK 40 holders ATORN 3D probe Note: The tool holders shown in the pictures are included in the sale and delivery. The tools clamped in the holders, such as drills, reamers, end mills, etc., are not included in the sale and delivery. The drive for the head tilting axis is missing.

Condition: ready for operation (used), Year of construction: 2007, machine/vehicle number: KU 4165M, functionality: fully functional, travel distance X-axis: 572 mm, travel distance Y-axis: 322 mm, travel distance Z-axis: 265 mm, number of slots in tool magazine: 22, rotational speed (max.): 15,000 rpm, The value of the supplied spare parts is approximately €70,000. TECHNICAL DETAILS Loading Modules: 1 module Machining Modules: 3 modules Number of Spindles: 6 Control System System: Bosch Rexroth MTX Part Program Size: Unlimited Remote Diagnosis: Available Programming: ISO code, simulation via EdgeCAM CAM software Workpiece Handling and Loading System Loading System: Parallel to main time, manual, with 3-axis handling or robot Parts Feeding: Paternoster / stack magazine Workpiece Changeover (chip-to-chip time): approx. 6 s Axes Travel X: 572 mm Travel Y1/Y2: 322 mm Travel Z: 265 mm Speed X: 40 m/min Speed Y1/Y2: 32 m/min Speed Z: 25 m/min Acceleration X: 8 m/s² Acceleration Y1/Y2: 8 m/s² Acceleration Z: 4 m/s² Feed Force X: 1,100 N Feed Force Y1/Y2: 1,100 N Feed Force Z: 2,500 N Rotational Speed B-Axis: 1,000 rpm Rotational Speed C-Axis: 500 rpm Acceleration B-Axis: 52 rad/s² Acceleration C-Axis: 90 rad/s² Torque B-Axis clamped: 1,000 Nm Torque B-Axis unclamped: 287 Nm Torque C-Axis clamped: 300 Nm Nsdpfx Asxamh Ejkuelb Torque C-Axis unclamped: 187 Nm Working Spindle Tool Interface: HSK 40-A External Diameter: 108 mm Speed: 15,000 rpm Torque (S6 45% duty cycle): 85 Nm Power (S6 45% duty cycle): 18 kW Internal coolant supply up to: 120 bar Spindle distance: 200 mm Workpiece Repeatability: +/- 2 µm Clamping Force: approx. 10 kN (self-locking) Diameter: 140 mm Length: 180 mm Weight: 21 kg Workpiece Clamping Clamping System: EROWA clamping system Activation: pneumatic, 6 bar Tool Changer Tool Discs: externally pre-loadable with position coding, diameter Ø 290 mm Tools (2 discs with 12 positions) per machining module: 22 Tool Disc Weight: 5 kg Max. Tool Weight: 2.5 kg Max. Free Tool Length: 186 mm Max. Tool Diameter: 63 mm Max. Tool Diameter with free adjacent position: 105 mm Shortest chip-to-chip time: ≥ 1 s Max. Total Tool Weight on Disc: 15 kg Positioning time per tool step: 250 ms Tool Holder: HSK 40-A, according to DIN 69893 MACHINE DETAILS Machine dimensions (L x W x H): approx. 9,300 x 3,400 x 3,500 mm Weight per machining module: approx. 4.5 t Weight per loading module: approx. 2.5 t

Condition: excellent (used), Year of construction: 1993, travel distance X-axis: 750 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 500 mm, total height: 2,690 mm, total length: 2,230 mm, total width: 2,360 mm, load capacity: 340 kg, mount diameter: 200 mm, rapid traverse Z-axis: 1 m/min, rapid traverse X-axis: 1 m/min, rapid traverse Y-axis: 1 m/min, spindle speed (max.): 7,500 rpm, spindle speed (min.): 10 rpm, Micron VCE 750 – Despite its age, the machine is in excellently maintained condition and has only been operated in single-shift use. Nlodpfxop Sq Tre Akujb Manufacturer: Mikron Model: VCE 750 Year of manufacture: 1993 Control: Mikron CNC (Haas) Travel: X = 750 mm Y = 400 mm Z = 500 mm Spindle speed: 10 – 7,500 rpm Drive power: 7.5 kW Spindle Tool holder: SK 40 Tool changer: 20 tools Rapid traverse: 12.7 m/min Max. feed rate: 5.0 m/min Worktable: 356 x 914 mm clamping surface Max. table load: 340 kg Weight: 3,620 kg Dimensions: 2,230 x 2,360 x 2,690 mm (L x W x H)

Condition: ready for operation (used), Year of construction: 2020, functionality: fully functional, travel distance X-axis: 110 mm, travel distance Y-axis: 150 mm, travel distance Z-axis: 150 mm, workpiece length (max.): 40 mm, workpiece width (max.): 80 mm, The rotary indexing machine is comprehensively equipped; the machine's original price is approximately €3,000,000. Njdpfowy I Tlex Akuolb No reserve price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Travel distance X-axis: 110 mm Travel distance Y-axis: 150 mm Travel distance Z-axis: 150 mm Work spindles Max. speed: 20,000 rpm Max. torque: 50 Nm Workpiece Maximum workpiece dimensions: Ø 40 x 80 mm Number of workpiece spindles: Max. 24 Number of tools on the machine: Max. 63 Lubrication pressure at tool center (bar): 80/110 Number of stations: 16 Table positioning repeatability: Ø 20 x 60 mm MACHINE DETAILS Electrical Data Voltage, phase frequency: 400 V / 50 Hz Weight & Transport Dimensions Weight: 19,000 kg Transport dimensions: 400 x 300 x 340 cm EQUIPMENT Chip conveyor Rack for oil tubing, extraction system and tubing Loading systems Vibrators Cabinets / side panels / upper channel / cabinet tops Platform Polycarbonate partitions Fire protection system with control console Further information on transportation dimensions can be found in the attached packing list.

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, controller model: iTNC Heidenhain 530, spindle speed (max.): 42,000 rpm, swivel angle C-axis (max.): 360 °, number of axes: 5, No minimum price – guaranteed sale to the highest bidder! The lot consists of 2x 5-axis HSC machining centers and pallet system with robot MIKRON HSM 600 U (serial number: 217.88.00.070) TECHNICAL DETAILS Travel X-axis travel: 800 mm Y-axis travel: 600 mm Z-axis travel: 500 mm Spindle Spindle speed: 42,000 rpm Tool holder: HSK 40 Axes B-axis swivel range: +30° / –110° C-axis rotation range: 360° C-Axis Combination rotary table range: n x 360° Nodpfox Hx T Aox Akuslb Rotational speed: 360 rpm (2,160°/s) Torque (nominal): 340 Nm Torque (max.): 217 Nm max. Clamping torque: 1,400 Nm B-Axis Swivel range: +30° / –110° Swivel speed: 200 rpm (1,200°/s) Swivel torque: 640 Nm Clamping torque: 2,800 Nm Clamping surface: 320 x 320 mm Table load capacity: max. 120 kg Tool magazine: 68 stations Control: Heidenhain iTNC 530 Workpiece weight: max. 120 kg EQUIPMENT Rotary tilting table with Erowa UCP MIKRON HSM 400 U (serial number: 217.87.00.178) TECHNICAL DETAILS Travel X-axis travel: 400 mm Y-axis travel: 240 mm Z-axis travel: 350 mm Spindle Spindle speed: 42,000 rpm Tool holder: HSK 40 Axes B-axis swivel range: ±110° C-axis rotation range: 360° C-Axis Combination rotary table range: n x 360° Rotational speed: 250 rpm (1,500°/s) Torque (nominal): 132 Nm Torque (max.): 217 Nm max. Clamping torque: 500 Nm B-Axis Swivel range: ±110° Swivel speed: 165 rpm (990°/s) Swivel torque (nominal): 485 Nm Swivel torque (max.): 686 Nm max. Clamping torque: 2,000 Nm Clamping surface: ITS 148 Powerchuck Table load capacity: max. 25 kg Tool magazine: 36 stations Control: Heidenhain iTNC 530 EQUIPMENT Rotary tilting table EROWA ROBOT MULTI TWIN Gripper station: 6 stations Grippers: various Storage system Rotary storage: 5 levels Level allocation Level 1: 5 x UCP 300 x 300 mm Level 2: 5 x UCP 300 x 300 mm Level 3: 15 x ITS 148 Level 4: 15 x ITS 148 Level 5: 30 x ITS 50 GENERAL EQUIPMENT Absolute measuring systems on all axes Infrared touch probe LASER Electronic handwheel for setup mode Graphite dust extraction 2x BURN WK 5806 Rotary pallet storage

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 Nedpfewqr Tdox Akuslb

Condition: used, Year of construction: 2007, Vertical CNC machining center MIKRON VCP 800 W With Heidenhain iTNC 530 contour control Year of manufacture: 2002 Travel paths: X 800 Y 650 Z 500 Speed range: 0 - 14,000 rpm Nsdpfx Aow Iqh Hskuelb

Condition: good (used), Year of construction: 2013, functionality: fully functional, Machine in good condition, hand-shown parts are not included in the set. Nlsdsw Dbt Tepfx Akueb X 1025 mm Ljbijwx N Nfsa A Hkmsad Y 560 mm Z 600 mm Heidenhain TNC 620, 16,000 rpm, HSK 63

Condition: used, control: Heidenhain TNC 155 tool taper: SK 40 quill stroke: 110 mm table size: 1000 x 500 mm travel: x-710, y-500, z-460 mm spindle speed: 31,5-3150 rpm accessories: Nsdpfx Asc Tt Hrekuelb angle table, coolant equipment, div. retainers

Condition: excellent (used), functionality: fully functional, Year of construction: 2007, operating hours: 41,417 h, Mazak Hyper Gear 510 4.0 kW Year of production February 2007 Meter reading 41417 hours MAZATROL operating system Njdpfx Akjwqr Twjujlb very good condition Technical data of the MAZAK HYPER GEAR 510 laser cutter - laser power: 4 kW - feeds in the X/Y/Z axes: 3070/1545/100 mm - dimensions of the work table (length x width): 3000 x 1500 mm - maximum weight of the workpiece: 930 kg - maximum dimensions of the workpiece (length x width x height): 3050 x 1525 x 25 mm - laser type: CO2

Year of construction: 2023, condition: new, Polyp Scrap Grapple for Cranes Palfinger Hiab Capacity: 300 Lt / 0.3 m3 Model: 4 Tinned - Half Closed Gross Weight: 450 Kg Nsdonzibljpfx Akuslb

Condition: new, functionality: fully functional, Year of construction: 2025, machine/vehicle number: MHG5202500000125, Orange Peel Grapple for Scrap Capacity 600 Liters Nedsxrymxepfx Akuelb Model 5 Tinned Gross Weight 1150 KG

Condition: new, functionality: fully functional, Year of construction: 2025, machine/vehicle number: MHB5202500000156, Scrap Grab for Terex Fuchs, Sennebogen, Liebherr 5 Tinned Model Nsdpfxjxryn Ao Akuslb 500 Liters Capacity

Condition: new, Year of construction: 2025, Scrap Grapple, Scrap Grab, Multi Tine Grab for Scrap Nledpfx Akjxryrboueb Capacity 0.6 m3 Model 5 Tinned Hardox 450 Wearing Plates Rotating Option

Condition: good (used), Year of construction: 2000, gear diameter: 449 mm, Equipped with: Fanuc 150MB CNC Control Dry Cutting Cutter Shroud Chip Evacuation System Auto Doors Hydraulic System Lubrication System Work light Stack Light Specifications: Largest Speed Ratio: 10:01 Work Area (Continuous): Largest Depth of Teeth: 15.24 mm Largest Width of Tooth Face: 50.8 mm Work Area Axis: Horizontal Movement X Axis: -114 - 178 mm Vertical Movement Y Axis: -178 - 190 mm Movement of the Carriage Baseplate Z-Axis: -10.16 - 500 mm Workpiece Headstock Swiveling Range B-Axis: -3 - 90 Degree Maximum Distance Machine Center to Spindle Side: 165 mm Number of Teeth: 5-200 Inclusive Max. Gear Pitch Dia. of Typical 35 Deg. Spiral Angle Gear Using Max. Cutter Dia. 12" Cutter at the Following Ratios: Face Milling 1 x 1 - 13.5" - 342.9mm 2 x 1 - 16.0" - 406.4mm 5 x 1 - 17.7" - 450.0mm Face Hobbing (210mm Dia. Cutter) 1 x 1 - 10.560" - 268.22mm 2 x 1 - 10.286" - 275.00mm 5 x 1 - 11.810" - 300.00mm Milling Head Diameter: Helixact: 100,125,169,200,250,320mm Continuous Gumption Procedure, Teichloroethylene: 102 - 210 mm Workpiece Spindle: Drilling of Large Diameters: 5 3/64" Cone Upward Gradient on 304.8 mm (1 Foot): 21/32" Nljdpfxoruakgo Akuob Deep One of the Cone: 5.29" Diameter of the Whole Spindle Perforating: 3.35" Speeds: B-Axle Workpiece Headstock Drag Axis: 30 Degrees A-Axle Workpiece Spindle Number of Revolutions: 0 83 min-1 X-Axis Horizontal: 80 mm/sec Y-Axis Vertically: 80 mm/sec Z-Axis Carriage Baseplate: 80 mm/sec Space Requirement L x W x H (Approximate): 4.75 x 3.40 x 2.54m / 188" x 134" x 100" Machine Weight (Approximate): 10980 kg / 24,156#

Condition: like new (used), Year of construction: 2017, max. wheel diameter 100 mm gear width 26 mm max. module 31 min. module 0,1 Control Siemens 840 D SL Number of working hours 9598 h total power requirement 45 kW weight of the machine ca. 7,8 t dimensions of the machine ca. 4,40x3,95x3,01 m Gleason 100S gear shaping machine for the production of internally and externally toothed cylindrical gears and other cylindrical workpiece circumference regularly occurring profiles and moulds as well as for the production of profiles using the single part process. Technical data: Nominal workpiece diameter 100 mm Largest circumferential diameter 150 mm Machine nominal module approx. 3 mm (Guide value depending on the respective machining task.) Shaping spindle stroke speed range 0 - 3,000 1/min Stroke position adjustment range (manual) 20 mm Largest toothing width 26 mm Smallest pitch height of the hydrostatic inclined guide 400 mm Smallest/largest distance between tool axis - 20/+ 180 mm and workpiece axis Stand inclination range (manual) - 1/+ 11° Nedpfx Akjv Ehbbjuolb Tool holder (manual clamping) HSK-D63 (hollow shank taper according to DIN 69063) Weight of the machine approx. 7,000 kg with robot cell