Used Mazak V 515 for sale (305)

Condition: used, CNC lathe Mazak Super Quick Turn 15M Maximum turning diameter: 300 mm Swinging diameter: 531 mm Maximum turning length: 510 to 528 mm Spindle bore: 52 mm Tool turret: 12 stations Machine weight: 4200 to 5100 kg The machine can be removed from the company premises, but the buyer must arrange for loading (using a forklift). The machine was in operation until recently but must be sold due to space constraints. An invoice can be issued upon request. Hfedpfeznvz Dsx Af Ask For further information, please send a message.

Condition: ready for operation (used), Year of construction: 2012, operating hours: 14,597 h, travel distance X-axis: 195 mm, travel distance Z-axis: 560 mm, controller manufacturer: MAZATROL, controller model: Smart, number of slots in tool magazine: 12, number of axes: 2, Horizontal turning machine manufactured in 2012. This Mazak Quick Turn Smart 200 features a 12-position turret and is equipped with a Hainbuch chuck, enhancing its versatility. It has a bar capacity of 65 mm, making it suitable for various turning applications. If you are looking to get high-quality turning capabilities, consider the Mazak Quick Turn Smart 200 machine we have for sale. Contact us for further details. • Supply Voltage: 3 Phase, 400 V, 50 Hz • Control Circuit Voltage: AC100 V / DC24 V • Main Breaker Interrupting Capacity: 20 kA • Supply Voltage (Ue): 400 V, 3~ • Rated Current (Ie): 3.5 A Hfedpjzhbqkofx Af Ajk • Frequency: 50 Hz • Weight Barfeeder: 500 kg • Breaking Capacity (Icn): 5 kA • Control: Mazatrol Smart • Turret: 12-Position • Bar Capacity: 65 mm • Hainbuch Chuck (Standard Chuck Also Included) • Optional, not included: IEMCA KID 80 Bar Feeder (2012) Technical Specification Counter Spindle No Driven Tools No

Condition: ready for operation (used), Year of construction: 2022, laser power: 15,000 W, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, number of axes: 3, Fiber laser cutting machine manufactured in 2022. This Mazak OPTIPLEX NEO features a powerful 15 kW fiber laser and offers an impressive working area of 3000 x 1500 mm. With approximately 2,000 cutting hours, it includes a new cutting head and beam delivery fiber, along with a CAMFIL QS4 dust extraction unit commissioned in 2024. If you are looking to get high-quality cutting capabilities, consider the Mazak OPTIPLEX NEO machine we have for sale. Contact us for further details. • Working area: 3000 x 1500 mm • Number of Axes: 3 (X/Y/Z) • Cutting hours: Approx. 2,000 h • Laser source: NLIGHT Fiber Laser • NLIGHT laser source warranty: Valid until 01/2027 • New cutting head • New beam delivery fiber • Maintenance: Annual preventive maintenance performed by MAZAK every year • The cutting head has recently been completely rebuilt/refurbished, and the transport fiber has also been replaced/refurbished. Additional equipment • Dust extraction unit: CAMFIL QS4 (commissioned in 2024) Hfsdezg D Uvepfx Af Ajk

Condition: ready for operation (used), Year of construction: 2007, operating hours: 8,794 h, spindle speed (max.): 5,000 rpm, travel distance X-axis: 230 mm, travel distance Z-axis: 575 mm, overall weight: 4,380 kg, controller manufacturer: MAZATROL, controller model: Matrix NEXUS, number of axes: 2, Horizontal turning machine manufactured in 2007. This Mazak QUICK TURN NEXUS 200-II features a maximum turning diameter of Ø 350 mm and a turning length of 550 mm. It is equipped with a chuck size of 200 mm and a maximum spindle speed of 5,000 rpm. If you are looking to get high-quality turning capabilities, consider the Mazak QUICK TURN NEXUS 200-II machine we have for sale. Contact us for further details. • Control: Mazatrol Matrix NEXUS • Chuck Size: 200 mm (8") • Maximum Turning Diameter: Ø 350 mm • Maximum Turning Length: 550 mm • Machine Weight: 4,380 kg • Tool Eye (Tool Setter): Yes • Coolant System: Currently not functional (coolant/water cannot be added) Hsdpfszg Dz Ajx Af Aefk • Additional optional Accessories: Chip Conveyor, various clamping jaws included • Machine On Hours: 24,079 h • Spindle Hours: 8,794 h Technical Specification Counter Spindle Yes Driven Tools No

Condition: good (used), functionality: fully functional, Year of construction: 2020, operating hours: 11,706 h, machine/vehicle number: 295269, control type: CNC control, degree of automation: automatic, actuation type: hydraulic, controller manufacturer: Mazak, controller model: FX30I-L5, laser type: CO₂ laser, pipe length (max.): 15,000 mm, - Auction Machine - For sale: a MAZAK laser cutting machine, model 3D FABRI GEAR 400 III - 4.0kW laser, serial number 295269, year of manufacture 02/2020, weight 38,900 kg, with MAZAK FX30I-L5 control, operating hours approx. 11,706, with 15 m loading and 15 m unloading area; special accessories: 8.5" cutting head without lens (M5) with non-contact height sensing, touch sensor, chain conveyor, detachable impulse handwheel, MtConnect adapter, Mazak FG CADCAM programming software, and more. Would you like to inspect it? The tube laser can be inspected at our location in DE-84339 Unterdietfurt. Interested? Further information and documents are available upon request. Hfodezm R H Sjpfx Af Aek

Condition: good (used), Year of construction: 2004, turning length: 1,000 mm, Manufacturer: MAZAK Type: QTN 250 Control: MAZATROL 640T NEXUS Year of Manufacture: 2004 Specifications Metric US Standard Max. Turning Diameter 675 mm X-Axis 230 mm Z-Axis 1025 mm Spindle Bore 77 mm Speed 4000 rpm Spindle Power 26 kW Tool Changer 12-Hole Quill Mount 5 Mk Dimensions (Estimate) Length 3800 mm Width 1800 mm Height 2000 mm Weight 5200 kg Hedowaiinepfx Af Ajfk Please note: The information on this page has been obtained to the best of our knowledge and belief, and where possible, from the manufacturer. The information is provided in good faith, but its accuracy cannot be guaranteed. Accordingly, it does not constitute a representation or contractual terms. We recommend that you check all important details.

Condition: used, Year of construction: 2007, swing dia. 430 mm Distance between the spindles 1450 mm control MAZATROL 640T x-axis 310 mm z-axis 605 mm Hfsdpfxoyb S Nrs Af Ask spindle tunring speed 4.000 U/min In our opinion, the machine is in good used condition and can be inspected under power by appointment. Technical Features & Accessories: - Gantry Loader Accessories, tools, and clamping devices shown are only included in the scope of delivery if noted in the additional information. Subject to changes and errors in the technical data and information, as well as subject to prior sale!

Condition: like new (used), MAZAK INTEGREX i-200 5 Axis Mill Turn Machine Year 2017, Smooth Control Hjdpjzilwwsfx Af Ajfk Kitagawa BB08 chuck, SMV power steady. 658mm max machining diameter, 1519mm max turning length Renishaw Probing, swarf conveyor, A-Mist air filtration, FSE coolant filtration.

Condition: good (used), Year of construction: 2012, maximum machining diameter 380mm, maximum machining length 508mm, bar capacity 74mm, spindle speed 4,000rpm, spindle power 18.5Kw, milling speed 4,500rpm, milling power10Kw, sub-spindle speed 6,000rpm, sub-spindle power 5.5Kw, Y axis -51/+51mm, 12 station turret, Hfedpszaz Uzefx Af Ask Mazatrol Matrix Nexus control, swarf conveyor, parts catcher , tool setter, 3 jaw chuck and Barfeed unit.

Year of construction: 2012, condition: good (used), Mazatrol Smart CNC control 3-jaw chuck C-axis driven tools Hedpfx Asiyx Disf Asfk 12-fold revolver Tool Eye tail stock coolant device chip conveyor Technische Daten / technical details: max. Umlaufdurchmesser / max. swing diameter 660 mm max. Drehdurchmesser/ max. turning diameter 350 mm max. Drehlänge / max. turning length 532 mm Planweg (x) / cross way (x) 225 mm Längsweg (z) / longitudinal way (z) 560 mm Drehzahlbereich / spindle speed 5000 UpM /rpm Drehzahl angetriebene Werkzeuge / speed of driven tools 4500 UpM / rpm Werkzeugrevolver / turret head 12 fach /holes Eilgang X/Z / rapid feed X/Z 30/33 m/min Antriebsleistung Spindel / drive capacity spindle 15 kW Gewicht der Maschine ca. / weight 4500 kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: ready for operation (used), Year of construction: 2018, laser power: 4,000 W, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, number of axes: 2, This Mazak Optiplex Nexus 3015 4,0kW Fiber + Fasani CSS3015 was manufactured in 2018. A fiber laser cutting machine featuring a 3000x1500mm max. sheet size, 4.0kW IPG fiber resonator, intelligent nozzle changer, and Donaldson DFPRO4 extraction. Includes Fasani CSS 1530 automation and a pallet changer. A great opportunity to buy this Mazak Optiplex Nexus 3015 fiber laser cutting machine. Contact us for more information. Additional equipment • Intelligent nozzle changer • Intelligent monitoring and focus detection • Smart software • Donaldson DFPRO4 extraction Hsdpfx Afszdd Rmj Aofk • Pallet changer • Open robot interface • Fasani CSS 1530 automation Extra Information Machine still under power

Condition: new, Year of construction: 2022, functionality: fully functional, NEW/UNUSED Mazak PRC Laser Optics & Parts — For Turbo X510 / MYZ1501 CO2 Laser For sale: a full set of brand new laser optics and spare parts, originally purchased for a Mazak LaserPath Turbo X510 (MYZ1501) CO2 laser cutting machine, year 1990, with Mazak L1 control. Hjdpfozndy Iox Af Aofk The parts were installed on the machine but the machine was never actually put into operation — so everything is essentially unused, zero cutting hours. Included in this lot: - 2x Gas Return Tree (short, YZ, 3kW, LH, FH turbine) — PRC ref. A8930721 - 1x Gas Return Knee (FH-blower end, YZ-O/C end) — PRC ref. B8930213 - 1x Gas Return Knee (FH-motor end, YZ-fold end) — PRC ref. B8930214 - 1x O-ring service kit for MYZ1500 laser - 8x Tygon tubing, anode — PRC ref. A8931164 - 4x Tygon tubing, stinger — PRC ref. A8931165 - 2x Mirror — PRC ref. OP-118 - 1x Rear mirror — PRC ref. OP-126 - 1x Output coupler "D" mode — PRC ref. B8930074 - 4x Plasma tube, 18mm outboard — PRC ref. B8930123 - 4x Plasma tube, 18mm inboard — PRC ref. B8930124 All parts are genuine PRC Laser Europe stock (original supplier), purchased new and never run. Also available: the complete donor machine (Mazak LaserPath Turbo X510 CO2 laser, MYZ1501, 1990, Mazak L1 control) can be sold as a whole, including electrical panel, control cabinet, and resonator — if a buyer prefers to take the full system rather than parts only. Open to discussing this option on request. Located in Romania. Buyer arranges shipping/pickup, or can inspect in person.

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. Hfjdeu U R E Aepfx Af Aok

Condition: used, Year of construction: 2004, Mazak Integrex E-650H x 2000 CNC Multi-Tasking CNC Lathe. S/No. 168658 (2004) with Mazatrol Fusion 640MT Pro Control, Max Swing 920mm, Spindle Motor 45kW, Rotary Spindle Motor 37 kW, Max Spindle Speed 1600rpm, Spindle Bore 260mm Dia, X/Y/Z Travels 1025/650/2106mm, B-Axis -30deg/+210deg, C-Axis 360deg, Rapids X/Y/Z 40/40/40m/min, Max Rotary Tool Spindle Speed 10,000rpm, Tailstock Travel 1858mm, Tailstock Quill Stroke 160mm, Tailstock Centre MT6, Automatic 80 Position Toolchanger, Spindle Taper Capto C8, Cromar Swarf Conveyor. Country of Origin: Japan Hfsdpfxozhmt De Af Aek Please Note: There are no loading facilities on site, dismantling and loading will be at the cost of the purchaser. Location: This lots is located in Birmingham, UK. Please see individual lot for loading information and charges. All/Any tooling is being offered as specifically described.

Condition: good (used), Year of construction: 2005, functionality: fully functional, machine/vehicle number: 255179729, travel distance X-axis: 1,050 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 880 mm, rapid traverse X-axis: 40 m/min, rapid traverse Y-axis: 40 m/min, rapid traverse Z-axis: 40 m/min, nominal power (apparent): 74 kVA, torque: 525 Nm, controller manufacturer: Mazak, controller model: 640M, workpiece height (max.): 1,000 mm, workpiece diameter (max.): 1,050 mm, workpiece weight (max.): 1,500 kg, total height: 3,200 mm, total length: 6,400 mm, total width: 2,600 mm, table width: 630 mm, table length: 630 mm, table load: 1,500 kg, overall weight: 19,700 kg, spindle speed (min.): 50 rpm, spindle speed (max.): 10,000 rpm, spindle nose: BT 50, number of spindles: 1, number of slots in tool magazine: 80, mount diameter: 50 mm, tool length: 500 mm, tool diameter: 420 mm, tool weight: 30,000 g, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, The machine is in full working order. It is being sold due to a new acquisition and lack of space. The table has a swivel axis of 1/360°. Included with the machine are some tool holders, an external coolant drum filter tank with a capacity of approximately 800-900 liters (L/W/H: 1800mm, 800mm, 650mm), a Renishaw MP10 measuring probe system, a grid structure in front of the machine (partially mobile), and 2 pallets measuring 630x630. Machine dimensions L/W/H: approximately 6400mm/2600mm/3200mm. The buyer is responsible for dismantling and removing the machine. The machine can be inspected while powered on. Appointment by arrangement. Hedpfx Ajzkkdref Ajfk

Condition: ready for operation (used), Mazak tool changer for Mazak machine H 400, used, with normal signs of wear, 100% functional, scope of delivery as shown in the photos. Hfsdpfx Aoi Eb Drof Ajk

Condition: ready for operation (used), Mazak tool changer for Mazak machine H 400, used, shows normal signs of wear, 100% functional, scope of delivery as shown in the photos. Hodpfx Aoi Eb Dnof Aefk

Condition: ready for operation (used), Mazak Mazatrol Cam M-2 Control Panel YM2B BN110B367, used, shows significant signs of wear, 100% functional, scope of supply as shown in the photos. Hjdpfx Aei Eb Dkef Aefk

Condition: ready for operation (used), Year of construction: 2005, operating hours: 60,683 h, functionality: fully functional, turning length: 1,524 mm, turning diameter: 820 mm, spindle speed (max.): 3,300 rpm, rapid traverse X-axis: 40 m/min, milling spindle speed (max.): 10,000 rpm, The following work was carried out on the machine: Repair/overhaul of the gearbox of the B-axis (2025) Complete maintenance (2025) Motor magazine renewed (2025) Replacement of the linear guides of the X and Y axes (2024) Renewal of the ball screws of the X and Y axes (2024) Repair of the milling spindle (2024) Including approximately 120 tools, SK 50 TECHNICAL DETAILS Hsdpfx Aezcwyljf Aefk Turning length: 1,524 mm Turning diameter: 820 mm Travel range, X-axis: 870 mm Travel range, Y-axis: 500 mm Travel range, Z-axis: 1,598 mm Main spindle Spindle speed (max.): 3,300 rpm Drive power of main spindle: 30 kW / 22 kW Max. torque of main spindle: 588 Nm Spindle nose of main spindle: A2-11" Spindle bore: 104 mm Indexing: 0.0001 Counter spindle Spindle speed (max.): 3,300 rpm Drive power of counter spindle: 30 kW / 22 kW Max. torque of counter spindle: 588 Nm Spindle nose of counter spindle: A2-11" Indexing: 0.0001 Milling spindle Drive power of milling spindle: 37 kW Max. torque of milling spindle: 260 Nm Milling spindle speed range: 0-10,000 rpm Rapid traverse, X-axis: 40 m/min Rapid traverse, Y-axis: 40 m/min Rapid traverse, Z-axis: 40 m/min MACHINE DETAILS Control system: Mazatrol 640M PRO Tool holder: SK50 Number of tool positions: 120 Operating voltage: 400 V / 50 Hz Connected load: 104 kVA Required installation area (L x W): 7 x 3.5 m Operating hours: 60,683 h EQUIPMENT Approx. 120 tools, SK 50 Variable speed adjustment Tool magazine, 120 positions High-pressure coolant, 70 bar Renishaw probe (new in 2025) Laser measuring system for rotating tools Interface set Air/water cooling through the spindle Overload monitoring system Chip conveyor, Mayfran Consep 2000 Quick-change tool holder, SMW

Condition: used, Year of construction: 1996, functionality: fully functional, travel distance X-axis: 1,100 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 825 mm, controller model: Mazatrol M Plus, table width: 630 mm, table length: 630 mm, overall weight: 19,800 kg, spindle speed (max.): 10,000 rpm, Mazak FH 680 X • X axis 1100 mm • Y axis 800 mm • Z axis 825 mm • Rotary table 360° – 1° indexing Hfodpfxjyan Dij Af Ask • 2 pallets • Table size 630x630 mm • 10,000 rpm, BT 50 • Through-spindle coolant (IKZ) • Year of manufacture: 1996 • 19,800 kg Can be inspected under power.

Condition: used, Year of construction: 1998, functionality: fully functional, machine/vehicle number: 136722, travel distance X-axis: 560 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 510 mm, controller model: Mazatrol M Plus, table width: 400 mm, table length: 400 mm, overall weight: 9,500 kg, spindle speed (max.): 10,000 rpm, Mazak H415 • X 560 mm • Y 510 mm • Z 510 mm • Rotary table 360° - 1° indexing • 6-pallet magazine • 120-tool magazine Hedpfsyan Axex Af Aofk • SK 40 • Through spindle coolant (IKZ) • Year of manufacture: 1998 • 9,150 kg Can be inspected under power.

Condition: excellent (used), Year of construction: 2021, operating hours: 8,000 h, functionality: fully functional, turning diameter: 380 mm, spindle motor power: 22,000 W, spindle speed (max.): 5,000 rpm, spindle bore: 65 mm, travel distance X-axis: 234 mm, travel distance Y-axis: 100 mm, travel distance Z-axis: 625 mm, mount diameter: 40 mm, rapid traverse X-axis: 30 m/min, rapid traverse Y-axis: 21 m/min, rapid traverse Z-axis: 33 m/min, rotational speed (max.): 5,000 rpm, torque: 465 Nm, bar passage: 65 mm, workpiece weight (max.): 300 kg, total height: 1,857 mm, total length: 2,760 mm, chuck outer diameter: 203 mm, total width: 1,835 mm, bar diameter (max.): 65 mm, swing diameter over bed slide: 695 mm, overall weight: 5,600 kg, Equipment: chip conveyor, fume extraction, CNC lathe MAZAK Quick Turn 200MY (year of manufacture 2021) You are welcome to inspect the machine while it is powered on at our facility. If you are interested, we will send you demonstration videos of the machine. The MAZAK Quick Turn 200MY is a powerful CNC lathe for the precise and efficient machining of chucked parts in a universal application (500U). With a maximum swing diameter of approximately 695 mm and a maximum machining diameter of approximately 380 mm, the machine is particularly suitable for demanding turning operations in general mechanical engineering as well as in series and single-part production. Hfedpfxjzkbfgj Af Ask The robust design with travels of 234 mm in the X-axis and 625 mm in the Z-axis, as well as a bar capacity of approximately 65 mm, enables the flexible accommodation of a wide variety of workpiece geometries – with a maximum payload in chucking operations of 300 kg and a maximum loading weight of 500 kg. The powerful main spindle with an 8″ chuck size and up to 5,000 rpm ensures high cutting performance and precision. The machine is equipped with a modern MAZATROL SmoothG control system, which offers intuitive operation, fast programming, and high process reliability. The 16-tool turret (VDI 40, quick-change function) enables flexible and efficient machining processes, even for complex manufacturing tasks. The tailstock (MT No. 5, 550 mm travel) provides additional secure support for long workpieces. For further process reliability and automation, the machine has an automation package (part catcher as well as interface/connection option for robots and bar feeders). An LLS coolant mist extraction system (low maintenance costs) and a chip conveyor from Mayfran also ensure optimal production conditions. With a machine weight of approximately 5,600 kg, the Quick Turn 200MY offers high stability and vibration damping, which has a positive effect on surface quality and dimensional accuracy. Overall, it is a modern and versatile CNC lathe that guarantees high precision, performance, and reliability in industrial production. On request, we offer delivery as well as commissioning of the machine in a comprehensive, worry-free package. You are in the best hands with us – professional, reliable, and with a passion for machines! PS CNC Service Germany GmbH & Co. KG All information is subject to change without notice.

Condition: used, Technical details: x-travel: 800 mm y-travel: 800 mm z-travel: 800 mm turning speeds: 35-10.000 1/min spindle: 37 / 30 kW max. torque on the spindle: 525 / 206 Nm Tool bore: BT 50 rapid traverse: 60 m/min Hfjdpewix E Refx Af Aok tool change unit: 160 Pos. size of pallet: 500 X 500 mm control: MAZATROL 640M Nexus c-axis: 0,001° x 360.000 workpiece weight: 1.000 kg workpiece height max.: 1.000 mm interference area: 900 mm 2 pcs. horizontal machining centers (HCN 6000 + HCN 6000-II, 2008), interlinked with pallet pool (16 pallets) MAZAK FMS, 2 pallet changer, chipconveyor, coolant device with internal coolant supply, accessories for both machines: 18 pallets, approx. 300pcs. toolholders, miscellaneous devices for workpiece-clamping... *

Condition: used, Year of construction: 2000, Year of manufacture: 2000 Control: Mazatrol 640 Documents included Chip conveyor TECHNICAL DATA – MAZAK INTEGREX 200SY Performance / Capacity Max. swing: Ø 540 mm Chuck size: 8" Max. machining diameter: Ø 540 mm Max. machining length: 1018 mm Max. outside diameter for bar material: Ø 51 mm Main spindle Spindle nose: JIS A2-6" Spindle bore diameter: Ø 61 mm Spindle speed: 35 – 5000 rpm (Standard) / 35 – 4500 rpm (Option: 5000)* Motor power (30 min. rating): 22 kW (18.5 kW*) Max. torque: 350 Nm (35.7 kgf·m) Sub spindle (counter spindle) Spindle nose: JIS A2-6" Spindle bore diameter: Ø 44 mm Spindle speed: 35 – 5000 rpm Motor power (10 min. rating): 7.5 kW Max. torque: 57 Nm (5.8 kgf·m) Turret / Tool data Turret type: With ATC, spindle turret External turning tool size: □ 25 mm Internal turning tool size: Ø 40 mm Milling tool: Max. Ø120 × 250 mm length Indexing time (90°): 0.5 s Milling spindle speed: 15 – 6000 rpm (Option: 10000) Milling spindle motor power: 7.5 kW Max. milling spindle torque: 62.29 Nm (6.35 kgf·m) Feed axes X-axis: Travel 530 mm / Rapid traverse 30,000 mm/min Z-axis: Travel 1065 mm / Rapid traverse 33,000 mm/min Hfedpfxsyh E Irs Af Aek Y-axis: Travel 140 mm / Rapid traverse 15,000 mm/min Z2-axis: Travel 1005 mm / Rapid traverse 20,000 mm/min Media / Control Coolant tank volume: 250 L Power consumption (continuous): 32.7 kVA Machine dimensions / Weight Overall length: 3485 mm Overall width: 2105 mm Overall height: 2416 mm Weight: 73,575 N (7,500 kgf)

Condition: like new (used), Refurbished Mazak Main Spindle QTS 200 The spindle has been completely refurbished; spindle bearings and spacer sleeves have been replaced. Subsequently, it has been balanced. We have further refurbished Mazak spindles in stock; feel free to send us your enquiry. This is an exchange spindle, which means a used part is required in return. If you have any further questions, we are happy to assist you. Hfsdpexawctofx Af Aok