Used Mazak Vtc 20 C for sale (360)

Condition: refurbished (used), Overhauled Mazak main spindle for VTC 200 or VTC 300 for sale. The spindle has been fully overhauled, spindle bearings and intermediate sleeves have been replaced. The taper has been reground. Subsequently, it has been balanced. The maximum speed is 12,000 rpm. We have additional overhauled Mazak spindles in stock; feel free to send us your inquiry. This is an exchange spindle, meaning a core return is required. If you have any further questions, we are at your disposal. Rcsdjvdkdiopfx Aabjh

Condition: good (used), Year of construction: 2007, travel distance X-axis: 1,740 mm, travel distance Y-axis: 760 mm, travel distance Z-axis: 660 mm, rapid traverse X-axis: 36,000 m/min, rapid traverse Y-axis: 36,000 m/min, rapid traverse Z-axis: 36,000 m/min, table width: 760 mm, table length: 2,000 mm, table load: 1,400 kg, IKZ 15 BAar Measuring probe MP12 Bohrzyklus with torq depending Performance package Pendel screen Interface set X - Travel: 1740mm Y - Travel: 760mm Z - Travel: 660mm Table Length: 2000mm Table Width: 760mm Table load: 1400 Feed rate X-Axis: 36000mm/min. Feed rate Y-Axis: 36000mm/min. Feed rate Z-Axis: 36000mm/min. Spindle Taper: 40ISO/Bt/Mk Power on spindle: 15kW Speeds / ranges: 12000Rpm ATC / revolver: 30 Coolant through spindle / Bar:Yes Number of controlled axis: 3 Chip conveyor: Yes Coolantsystem: Yes Length: 4450mm Width: 3460mm Height: 2900mm Rodew Rntropfx Aaboch Weight: 10500kg

Condition: used, Year of construction: 2014, functionality: fully functional, travel distance X-axis: 3,000 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 720 mm, rapid traverse X-axis: 50 m/min, rapid traverse Y-axis: 50 m/min, rapid traverse Z-axis: 50 m/min, feed rate X-axis: 50 m/min, feed rate Y-axis: 50 m/min, feed rate Z-axis: 50 m/min, controller manufacturer: Mazak, controller model: Mazatrol Matrix 2, workpiece length (max.): 3,500 mm, workpiece width (max.): 820 mm, workpiece weight (max.): 2,500 kg, table width: 3,500 mm, rotary table diameter: 500 mm, rotational speed (min.): 35 rpm, rotational speed (max.): 18,000 rpm, overall weight: 16,500 kg, spindle speed (min.): 35 rpm, spindle speed (max.): 18,000 rpm, spindle motor power: 35,000 W, number of slots in tool magazine: 48, tool length: 350 mm, tool diameter: 130 mm, tool weight: 8,000 g, The machine is equipped with: - Side swiveling head - NC rotary table - High-pressure coolant through spindle (15 bar) - Chip conveyor, discharge to the left side - Mazak Monitoring System B, wireless probing system (Renishaw wireless touch probe) - Air blow unit through the spindle - Additional work area lighting - Removable electronic handwheel Redpfx Aaexcpiwobsch - Table central partition for pendulum machining

Condition: excellent (used), Year of construction: 2017, functionality: fully functional, Equipment: chip conveyor, Chip conveyor Rcedpfxexbdccs Aabjh Through-spindle coolant 15 bar Renishaw preparation Performance package

Condition: good (used), Year of construction: 2011, functionality: fully functional, Equipment: chip conveyor, documentation/manual, Technical data: Control: Mazatrol 640M Travel X – Y – Z axis mm: 1740 / 760 / 660 Rapid traverse X – Y – Z axis m/min: 36 / 36 / 36 Table Table size mm: 2000 x 760 Table load capacity kg: 1,400 Distance between table surface / spindle nose mm: 160 – 840 Main spindle Speed min-1: 12,000 Main drive power (5 min. / 30 min.) kW: 18.5 / 11 Automatic tool changer (ATC) Number of positions / spindle taper: 30 / SK 40 Max. tool diameter mm: 80 - with free adjacent positions mm: 110 Max. tool length mm: 350 Max. tool weight kg: 8 Machine height mm: 3442 Installation area mm: 4435 x 3300 Rcedpfowpu Hdsx Aabjh Machine weight kg: 11,500 Accessories: Relocation detector Automatic tool length measuring system Preparation for partition for pendulum machining Electronic handwheel EIA / ISO programming Synchronous tapping Through-spindle coolant 5 bar Chip conveyor

Condition: used, Year of construction: 1984, x-travel 1000 mm y-travel 508 mm z-travel 460 mm size of pallet 1240 x 550 mm numbers of pallets 2 workpiece weight 800 kg spindle taper ISO 40 spindle motor 5,5 kW turning speed range 28 - 4000 U/min no. of tools in magazin 30 control MAZATROL M 1 total power requirement kW weight of the machine ca. 5,6 t Rcjdpfx Ajtqqk Ijaboh dimensions of the machine ca. 4,50 x 3,00 x 2,65 m acc.: chip conveyor

Condition: used, Year of construction: 2003, operating hours: 38,499 h, functionality: fully functional, travel distance X-axis: 1,740 mm, travel distance Y-axis: 760 mm, travel distance Z-axis: 600 mm, rapid traverse X-axis: 36 m/min, rapid traverse Y-axis: 36 m/min, rapid traverse Z-axis: 36 m/min, type of input current: AC, With chip conveyor, left-side ejection, hinged belt design Operating hours: 38,499 Mazatrol 640M control system Tool magazine for 48 tools Work table Table size (clamping surface): 760 x 2,000 mm Table load: max. 1,400 kg Table configuration: 5 x 18 mm T-slots, 125 mm spacing Reference T-slot: 18 mm H in the table center Table height from floor: 875 mm Travel ranges Travel path: X-axis 1,740 mm Y-axis 760 mm Z-axis 660 mm Rapid traverse speed: X-axis 36 m/min Y-axis 36 m/min Z-axis 36 m/min Feed rate 1 - 8,000 mm/min Distance from spindle nose to table 180 - 840 mm Distance from the front of the column to the spindle center: 830 mm Work spindle speed range (infinitely variable) 40 - 12,000 rpm Steep taper chuck: CAT 40 Main drive power, AC motor: 18.5 / 11 / 7.5 kW Torque: max. 98 Nm Cutting performance (test results) Milling performance C 45 approx. 416 cc/min Drilling performance C 45 Ø 25 mm Tapping performance C 45 M 24 x 3 * Machining performance depends on the condition of the workpiece, the tooling, and the clamping device. Coolant system Tank capacity: 365 l Flood cooling: Pump flow rate approx. 24 l/min Pump pressure: approx. 5 bar - Air blower on the spindle - High-pressure cooling through the spindle, pressure approx. 15 bar - Preparation for Mazak Monitoring System B, optical type touch probe MP-12 - 2 additional M-function sets (2 M-functions per set) Partition for reciprocating machining - Renihaw measuring system NC-1 Mazak Monitoring System B, optical type touch probe MP-12 CNC "Performance" option package Redpfswf Duvex Aabech 15 wipers (scrapers) No.: J09KXSW10S0

Condition: excellent (used), Year of construction: 2004, MAZAK INTEGREX 200-III ST 5 Axis Turning Centers Lathe, s/n 174623, w/ MAZATROL 640MT Pro Control, 40” Center Distance, 2.5” Bar Capacity, 26” Swing, 26” Turning Diameter, Travels: X-22.83”, Y-6.3”, Z-41.14”, B Axis Head Tilt: 225°, C Axis Index: 0.001°, 5,000 RPM Spindle Speed (Main/Sub), Live Tooling, 12,000 RPM Live Tooling Spindle Speed, 40-ATC, KM63 Taper, Sub Spindle, Oil Matic Oil Temp Regulator, Chip Conveyor Redpfx Aeu A Dgljaboch

Condition: excellent (used), Year of construction: 1989, I am selling a CNC lathe Mazak QuickTurn 20N. Lathe in bdb condition. Equipment: MAZATROL T-2, control MAZATROL CAM-T-2. Redpfx Aaou U R E Aobech

Year of construction: 2018, condition: ready for operation (used), Control Unit Brand MAZATROL Model Mazatrol SmoothG CNC Main Drive Number of spindles 2 Spindle speed range 5000 Movement X-Axis Movement 234 mm Rsdpsxp Srzjfx Aabjch Y-Axis Movement 100 mm Z-Axis Movement 625 mm W-Axis Movement 585 mm Workpiece Workpiece drm 695 mm Turret Number of tool slots 12 This 4-axis Mazak QUICK TURN COMPACT 200 MSY L was manufactured in 2018. It features a maximum swing of 695 mm and a machining diameter of 380 mm. Equipped with a Mazatrol SmoothG CNC control system, it ensures precision and efficiency. The main spindle supports up to 5000 rpm, while the second spindle reaches 6000 rpm. A great opportunity to buy this Mazak QUICK TURN COMPACT 200 MSY L lathe. Contact us for further details. Application Types Turning

Condition: used, Year of construction: 2000, Turning length 1000 mm Max. swing 640 mm dia. Max. turning 540 mm dia. Spindle bore 51 mm Max. Spindle speeds 4000 rpm (same for subspindle) Rsdpfxop Ui N Hs Aaboch Max. spindle speeds on milling spindle 6000 rpm No. of stations in tool changer 40 pcs. Control: PC Fusion 640 MT Equipped with: Gantry loader 10 pcs. tool holders

Condition: used, Year of construction: 2005, turning diameter: 660 mm, controller manufacturer: MAZATROL, controller model: 640 MT PRO, number of spindles: 2, CONTROLS .. CNC controls MAZATROL 640 MT PRO BASIC FUNCTIONS .. number of spindles: 2 .. live positions: yes WORKING RANGE TURNING .. turning diameter (max): 660 mm .. worpiece length max.: 1045 mm MAIN SPINDLE .. spindle revolutions (max): 4600 /min .. drive power: 22 kW .. c-axis: yes COUNTER SPINDLE .. spindle revolutions (max): 5000 /min .. drive power: 18.5 kW .. c-axis: yes X/Z SLIDE .. rapid traverse Z: 50000 mm/min .. rapid traverse X: 50000 mm/min .. rapid traverse Y: 40000 mm/min .. - rotation speeds (max): 12000 /min .. - drive power: 18.5 kW TOOL MAGAZINE .. number of positions: 40 .. tool diameter max.: 90 mm .. - with free neighbour positions: 125 mm .. tool length max.: 300 mm .. tool weight max.: 10 kg X1 axis: 580 mm Rsdpfxjxryp Ts Aabjch X2 axis: 150 mm Y axis: 160 mm Z1 axis: 1,045 mm Z2 axis: 1,010 mm W axis: 1,050 mm B axis: -30 to 210° Special equipment • Chip conveyor • Tooleye • 15 bar high-pressure pump • Milling spindle synchronised thread cutting • 5-axis simultaneous machining • Preparation for multiple and flash tool holders • Interface for bar loader • Conveyor belt for finished parts • Preparation for Renishaw system • 3-jaw chuck for main and counter spindle

Year of construction: 2004, condition: ready for operation (used), - USED - 5-AXIS CNC LATHE MAX ROTATING DIAMETER: 675 mm MAX TURNING LENGTH: 575 mm MAX TURNING DIAMETER: 380 mm BAR CAPACITY: 65 mm SPINDLE: 35-5000 rpm; 26-35 kW; ASA A2-6 ; 203 mm Rsdjvthv Uopfx Aaboch COUNTER SPINDLE: 35-6000 rpm; 7,5-10 kW; 152,4 mm; ASA A2-6 X-AXIS TRAVEL: 230 mm Y-AXIS TRAVEL: ± 50 mm Z-AXIS TRAVEL: 575 mm B-AXIS TRAVEL: 585 mm DRIVEN TURRET HEAD: 12 POS; 4500 rpm; 5,5 kW CONTROL UNIT: MAZATROL 640T NEXUS WEIGHT: 5100 Kg OVERALL DIMENSIONS: 2765 x 1780 x 1840 mm ACCESSORIES: PARTS CATCHER ; SWARF CONVEYOR ; ETHERNET PORT ; RS 232 SERIAL PORT ; TOOL SETTER NOTE: WITH No 2 DRIVEN TOOL HOLDERS AND No 15 FIXED TOOL HOLDERS

Condition: excellent (used), With sub-spindle With C-axis, with Y-axis MAZAK Mazatrol Nexus control Rcsdpfexpugbex Aabsh Turning length -538 mm Swing Diameter -675 mm Turning diametre 380 mm Spindle speeds 35- 5'000 + 35- 6'000 rpm Tool changer with 16 driven positions Bar loader Tool presetter device Piece catcher attachment Misc. accessories MARCELS MASCHINEN CH

Condition: used, Year of construction: 2005, Mazak QTN 200 lathe, year of manufacture 2005 Mazatrol 640T 210 mm Kitagawa BB 208 chuck Spindle bore 65 mm Turning length 500 mm Rcedpexgpqpsfx Aaboh Turning diameter 380 mm Tailstock Tool probe

Year of construction: 2000, condition: ready for operation (used), General Data Measurements width 2105 mm Measurements depth 3485 mm Machine weight 7500 kg Control Unit Brand MAZATROL Main Drive Spindle speed range 3500–5000 Spindle bore 61 mm Rcodpfx Aajxpyw Eebeh Number of axis 4 Movement X-Axis Movement 530 mm X-Axis Feed Force 0–6000 mm/min X-Axis Rapid Traverse 30 m/min Y-Axis Movement ±70 mm Y-Axis Feed Force 0–6000 mm/min Y-Axis Rapid Traverse 15 m/min Z-Axis Movement 1065 mm Z-Axis Feed Force 0–6000 mm/min Z-Axis Rapid Traverse 33 m/min Tail Stock Pinol diameter 80 mm Pinol way 870 mm Pinol tool taper MK4 Tools Number of station 20 Max weight 7 kg Max tool diameter 90 mm Max tool length 250 mm This 4-axis Mazak INTEGREX 200 Y was manufactured in 2000. It features a maximum turning diameter of 540 mm, a swing diameter of 540 mm, and a bar diameter capacity of 51 mm. The machine supports a workpiece weight up to 150 kg and offers a spindle speed range up to 5,000 rpm. It includes a Mazak KM 63 quick change tool system with 20 slots. If you are looking to get high-quality turning capabilities, consider the Mazak INTEGREX 200 Y machine we have for sale. Contact us for more information. Application Types Turning

Condition: ready for operation (used), travel distance Z-axis: 585 mm, feed length X-axis: 3,000 mm, feed length Y-axis: 800 mm, controller manufacturer: Mazak Fusion M640, total height: 3,546 mm, total length: 3,274 mm, total width: 8,100 mm, empty load weight: 19,000 kg, passage width: 860 mm, Paletchanger 2 tables High pressure cooling 15 bar Scrapconveyor Protectioncover in Alu synchrone tapping EIA/ ISO input Max workpiece dimensions: 3240 x 880 x 640 mm Table dimensions: 3240 x 750 mm Max weight on the table: 3 ton Admission in spindle (ISO): ISO 50 Rcsdpfx Aoxqr U Esaboh Power on the spindle: 30 kW Number of toolholders: 40 tools Number of rotations: max 6000 rpm Number of pallets: 2x 750 x 3240mm

Condition: used, Year of construction: 2005, turning length: 575 mm, turning diameter: 380 mm, spindle speed (max.): 5,000 rpm, travel distance Z-axis: 575 mm, bar passage: 65 mm, bar diameter (max.): 65 mm, controller manufacturer: MAZATROL, controller model: 640 T NEXUS, CONTROLS .. CNC controls MAZATROL 640 T NEXUS WORKING RANGE TURNING .. turning diameter (max): 380 mm Rcedpfx Asxql D Heabsh .. bar diameter (max): 65 mm .. worpiece length max.: 575 mm MAIN SPINDLE .. spindle revolutions (max): 5000 /min .. drive power: 26 kW COUNTER SPINDLE .. spindle revolutions (max): 6000 /min .. drive power: 11 kW X/Z SLIDE .. Z-axis travel: 575 mm .. X-axis travel: 230 mm .. Y-axis travel: 585 mm .. number of tool positions (total): 12 .. - rotation speeds (max): 4500 /min .. - drive power: 5.5 kW Additional options • Kitagawa BB-08 3-jaw chuck • Kitagawa B-206 3-jaw chuck • Parts catcher • Interface for bar feeder • Tool holder package, including driven holders • Coolant pump • Chip conveyor

Year of construction: 2007, condition: ready for operation (used), - USED - 8-AXIS CNC LATHE WITH MILLING HEAD, DOWN TURRET HEAD AND COUNTER SPINDLE MAX ROTATING DIAMETER: 660 mm MAX TURNING LENGTH: 1495 mm MAX TURNING DIAMETER: 660 mm BAR CAPACITY: 65 - 65 mm SPINDLE: 35-5000 rpm; 22 kW; 254 mm COUNTER SPINDLE: 35-5000 rpm; 18,5 kW; 254 mm HEAD: CAPTO C6 ; -30°+195° ; 15-12000 rpm; 18,5 kW X-AXIS TRAVEL: 580 mm X2-AXIS TRAVEL: 150 mm Y-AXIS TRAVEL: 160 mm Z-AXIS TRAVEL: 1545 mm Z2-AXIS TRAVEL: 1490 mm B-AXIS TRAVEL: 1550 mm RAPID FEEDS X-Y-Z: 38 - 26 - 38 m/min TURRET HEAD: 9 POS TOOL MAGAZINE: CHAIN-TYPE ; 80 POS HIGH PRESSURE COOLANT: 18 Bar Rjdpfx Aasw Ey R Hjbech CONTROL UNIT: MAZATROL MATRIX WEIGHT: 11800 Kg OVERALL DIMENSIONS: 5090 x 3270 x 2830 mm ACCESSORIES: SWARF CONVEYOR ; PAPER FILTER ; TOOL SETTER

Condition: used, Year of construction: 2003, Max. Swing – 675mm Rsdpjv Rnuxsfx Aabsch Swing over carriage – 350 mm Max. Machining dia. – 380 mm Max. Machining lenght – 538 mm X-axis travel – 230 mm Z-axis travel – 575 mm Spindle - Chuck size – 8” Spindle speed – 5000 rpm Turret w/12 stations Control: Mazatrol PC Fusion 640 T Equipped with: Barfeeder LNS Eco Load

Year of construction: 2005, condition: ready for operation (used), General Data Measurements width 1780 mm Measurements depth 2765 mm Measurements height 1840 mm Machine weight 5100 kg Control Unit Brand MAZATROL Main Drive Spindle speed range 5000 Spindle motor power 26 kW Number of axis 3 Movement X-Axis Movement 230 mm Z-Axis Movement 575 mm Rcedpfx Aasxnd T Isbjh Turret Number of turrets 1 Tools Number of station 12 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. Application Types Turning

Condition: used, Year of construction: 2016, travel distance X-axis: 3,000 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 720 mm, controller manufacturer: MAZATROL, controller model: MATRIX 2, table width: 820 mm, table length: 3,500 mm, spindle speed (max.): 18,000 rpm, spindle motor power: 35 W, CONTROLS .. CNC controls MAZATROL MATRIX 2 WORKING RANGE -CUBIC- .. number of processing axes (excl parallel axes): 5 .. X-axis travel: 3000 mm .. Y-axis travel: 800 mm .. Z-axis travel: 720 mm .. rotating range B-axis up to: 220 ° .. rotating range C-axis up to: 360 ° TABLE .. table surface (left-right): 3500 mm .. table surface (front-back): 820 mm SPINDLE / HEAD .. spindle revolutions (max): 18000 /min .. tool fixture: ISO SK 40 .. drive power: 35 kW Rjdpfxjxm Rw Ds Aabech TOOL MAGAZINE .. number of positions: 155 further options • Air blowing out of the workpiece • High pressure 15 bar through spindle • Mazak Monitoring B (Renishaw RMP60) • Tool length measurement x2 Table centre partition • NC rotary table, 360,000 positions, diameter: 1,000 mm • Swarf Conveyor • 5-axis simultaneous machining package • auto pecking cycle with load detection • B) Cylindrical interpolation • G00 slope constant • B) synchronized MillTapp

Year of construction: 2007, condition: ready for operation (used), - USED - 8-AXIS CNC LATHE WITH MILLING HEAD, DOWN TURRET HEAD AND COUNTER SPINDLE MAX ROTATING DIAMETER: 660 mm MAX TURNING LENGTH: 1495 mm MAX TURNING DIAMETER: 660 mm BAR CAPACITY: 65 - 65 mm Redew Ey R Tspfx Aabech SPINDLE: 35-5000 rpm; 22 kW; 254 mm COUNTER SPINDLE: 35-5000 rpm; 18,5 kW; 254 mm HEAD: CAPTO C6 ; -30°+195° ; 15-12000 rpm; 18,5 kW X-AXIS TRAVEL: 580 mm X2-AXIS TRAVEL: 150 mm Y-AXIS TRAVEL: 160 mm Z-AXIS TRAVEL: 1545 mm Z2-AXIS TRAVEL: 1490 mm B-AXIS TRAVEL: 1550 mm RAPID FEEDS X-Y-Z: 38 - 26 - 38 m/min TURRET HEAD: 9 POS TOOL MAGAZINE: CHAIN-TYPE ; 80 POS HIGH PRESSURE COOLANT: 18 Bar CONTROL UNIT: MAZATROL MATRIX WEIGHT: 11800 Kg OVERALL DIMENSIONS: 5090 x 3270 x 2830 mm ACCESSORIES: SWARF CONVEYOR ; PAPER FILTER ; TOOL SETTER

Year of construction: 2014, condition: ready for operation (used), Control Unit Brand MAZATROL Model Matrix 2 Main Drive Number of spindles 2 Spindle speed range 4000 Spindle motor power 15 / 22 kW Number of axis 8 Movement X-Axis Movement 240 mm Y-Axis Movement 50 mm Z-Axis Movement 495 mm Turret Number of turrets 1 Tool taper VDI / Capto Tools Number of index 12 + 12 Additional Equipment Equipped with GL 100 Gantry Loader with Tray System Supplied with tooling set as per listing photos This 8-axis Mazak Multiplex 6200 Y was manufactured in 2014, featuring dual spindles and turrets, each with a 254 mm chuck diameter and 4000 rpm speed. It includes a Mazatrol Matrix 2 control unit and a GL 100 Gantry Loader. Ideal for complex turning operations, it offers a bar capacity of 51 mm and a maximum turning diameter of 320 mm. If you are looking to get high-quality turning capabilities consider the Mazak Multiplex 6200 Y machine we have for sale. Contact us for more information. Rsdpfx Aaswttzuebech Application Types Turning

Condition: used, Year of construction: 2012, turning length: 500 mm, turning diameter: 530 mm, spindle speed (max.): 5,000 rpm, travel distance X-axis: 450 mm, travel distance Y-axis: 2,000 mm, travel distance Z-axis: 550 mm, bar passage: 65 mm, bar diameter (max.): 65 mm, controller manufacturer: MAZATROL, controller model: MATRIX, number of spindles: 1, CONTROLS .. CNC controls MAZATROL MATRIX BASIC FUNCTIONS .. number of spindles: 1 WORKING RANGE TURNING .. turning diameter (max): 530 mm .. bar diameter (max): 65 mm .. worpiece length max.: 500 mm MAIN SPINDLE .. spindle revolutions (max): 5000 /min .. c-axis: yes X/Z SLIDE .. Z-axis travel: 550 mm .. X-axis travel: 450 mm .. Y-axis travel: 2000 mm .. rotating range B-axis up to: 190 ° .. - rotation speeds (max): 12000 /min TOOL MAGAZINE .. number of positions: 72 .. tool diameter max.: 90 mm .. - with free neighbour positions: 125 mm .. tool length max.: 210 mm ATTACHMENTS (TURNING) Redpfexm Rrnex Aabsch .. tailstock: yes .. bar magazine: yes .. - bar length (max): 1200 mm .. - bar diameter (max): 65 mm .. workpiece unloading system: yes .. thread cutting attachment: yes .. chip conveyor: yes .. coolant unit: yes .. band filtration unit: yes .. coolant through turret: yes .. through spindle coolant attachment: yes .. aspiration unit: yes .. hydraulic system: yes .. European CE standards: yes