Used Hermle Uwf 1202 for sale (123)

Condition: good (used), Year of construction: 2004, Manufacturer: HERMLE Type: U 1130 Year of manufacture: 2004 Control: Heidenhain iTNC 530 Machine weight: approx. 8500 kg Tool holder: SK 40 X travel: 1300 mm Y travel: 720 mm Z travel: 630 mm Speed range: 18000 rpm Max. table load: 700 kg Godpfx Amev S Alneyebl Operating hours: 50,775 Spindle hours: 21,654 Space required: approx. 3600 x 4500 x 2800 mm Table size: 800 x 1000 Number of tools in magazine: 28 positions Internal coolant supply: 80 bar 3D measuring probe: TS 640 5 axes simultaneous

Condition: excellent (used), HEIDENHAIN TNC430 with B + C axis Working travels 800 x 600 x 500 mm Table size Ø 280 mm Godpfxek Dz Nge Amyebl Table swivelling +/-110° Table rotating 360° Spindle taper HSK63 Spindle speeds -15'000 rpm tool changer 30 pos. Coolant through spindle 3D tracer Renishaw MARCELS MASCHINEN CH

Condition: like new (used), Year of construction: 2008, travel distance X-axis: 650 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, rapid traverse X-axis: 45 m/min, rapid traverse Y-axis: 45 m/min, rapid traverse Z-axis: 45 m/min, controller model: Heidenhain iTNC530, table width: 960 mm, table length: 600 mm, overall weight: 9,000 kg, spindle speed (max.): 40,000 rpm, operating hours of spindle: 22,800 h, spindle nose: HSK E 40, number of spindles: 1, number of slots in tool magazine: 38, input voltage: 400 V, Equipment: documentation/manual, rotational speed infinitely variable, This machine has been used exclusively for copper processing. The coolant water supply is present but has not been used to date. In other words, a superb machine that has always done very light machining, has never seen coolant, and is equipped with a Weiss spindle running at 40,000 rpm. The machine comes as standard including: - Original documentation for the machine and the Weiss spindle - BLUM tool laser - Heidenhain TS-440 3D probe - Spindle and emulsion cooler - Lockable roof (harmonica style) Gsdpfx Amoxgukbjyebl The machine can be inspected under power by appointment.

Year of construction: 1997, condition: ready for operation (used), X-travel: 630mm, y-travel: 500mm, z-travel: 500mm, table diameter: 900x528mm, NC rotary table diameter: 500mm, connected load: 14kVA, length: 3600mm, width: 3900mm, height: 2100mm, weight: 6t, with documentation. Gedslc N Stepfx Amyobl

Condition: not inspected (used), Year of construction: 1998, functionality: unexamined, machine/vehicle number: 12644, travel distance X-axis: 1,200 mm, travel distance Y-axis: 900 mm, travel distance Z-axis: 500 mm, controller model: HEIDENHAIN TNC 426, spindle speed (max.): 15,000 rpm, No minimum price – guaranteed sale to the highest bidder! The machine is being auctioned as part of a business liquidation. Bids are binding and require timely collection between 26.01.2026 and 29.01.2026! TECHNICAL DETAILS Travel distances Travel distance X-axis: 1,200 mm Travel distance Y-axis: 900 mm Travel distance Z-axis: 500 mm Spindle Minimum distance from working spindle to top edge of table: 180 mm Maximum distance from working spindle to top edge of table: 680 mm Milling spindle diameter at front bearing: 70 mm Gsdpjxqfzrjfx Amyebl Spindle speed: 15,000 rpm Tool holder: HSK A63 Feed Feed rate X-axis: 1 – 3,000 mm/min Feed rate Y-axis: 1 – 3,000 mm/min Feed rate Z-axis: 1 – 3,000 mm/min Work table Table dimensions: 1,400 x 900 mm Number of T-slots: 14 MACHINE DETAILS Control: HEIDENHAIN TNC 426 Electrical data Operating voltage: 400 V Frequency: 50 Hz Control voltage: 24 V Rated current: 31 A Connected load: 45 kVA Dimensions & weight Dimensions (L x W x H): 6,000 x 3,200 x 2,900 mm Weight: 12,000 kg EQUIPMENT 30-position tool changer Measuring probe Tool holders in the tool changer Note: Transport can be carried out on a truck up to 3,000 mm width.

Condition: ready for operation (used), Year of construction: 2004, operating hours: 48,702 h, functionality: fully functional, machine/vehicle number: 16261, travel distance X-axis: 650 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, controller model: Siemens Sinumerik 840 D pl , spindle speed (max.): 28,000 rpm, TECHNICAL DETAILS Travel Paths X-axis travel: 650 mm Y-axis travel: 600 mm Z-axis travel: 500 mm Main Spindle Spindle speed range: 20 – 28,000 rpm Spindle drive power: 23 / 18 kW Max. torque: 79 Nm Tool taper: HSK-A63 NC Rotary Swivel Table Clamping surface: Ø 630 mm Swivel range A: +30° / -115° Rotatable C: 360° Max. table load: 500 kg Max. workpiece dimensions: Ø 630 x 313 mm Table rotation speed A: 25 / C: 65 rpm Tool Changer Number of tool stations: 117 Max. tool diameter: 90 mm Max. tool length: 300 mm Feed Rates Rapid traverse (X / Y / Z): 60 m/min Acceleration: 10 m/s² Feed force: 8.5 kN Gbodpfxjxbz A Hj Amyel MACHINE DETAILS Control: Siemens Sinumerik 840 D pl Space Requirement & Weight Required space approx.: 8.5 x 5.5 x 3.0 m Machine weight approx.: 10,500 kg Total power requirement: 43 kVA Operating hours: 48,702 h EQUIPMENT - Documentation - High-pressure cooling - Coolant system - Internal coolant supply: 80 bar / 1,300 l - Electronic handwheel - Fully enclosed cabin - FASTEMS pallet pool / 15 positions - Chip conveyor - Paper band filter - Renishaw probe - Tool breakage monitoring Note: Transport lifting gear must be provided by the buyer. The pallet system cannot be observed under power. The Fastems controller is defective.

Condition: used, Year of construction: 2000, functionality: fully functional, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, controller manufacturer: HEIDENHAIN, controller model: 460, rotational speed (max.): 15,000 rpm, spindle nose: HSK 63A, number of slots in tool magazine: 30, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Used HERMLE C800U high-speed 5-axis continuous vertical machining center; this is a medium-sized CNC machine equipped with a gantry granite structure, weighing 8,200 kg. Axis travels: X 800 mm, Y 500 mm, Z 600 mm, with a 5-axis table featuring a 280 mm diameter platter. Gbsdpfoxryfzex Amyjl Year of manufacture: 2000, fitted with HEIDENHAIN TNC 430, HSK 63A spindle at 15,000 rpm (max 19 kW) cooled by a dedicated chiller, 30-position pick-up type tool changer, and remote electronic handwheel. The equipment is completed by a KNOLL chip conveyor, high-pressure through-spindle coolant, and a RENISHAW MP10 wireless 3D workpiece probe.

Condition: good (used), Year of construction: 2005, operating hours: 108,310 h, functionality: fully functional, travel distance X-axis: 915 mm, travel distance Y-axis: 500 mm, travel distance Z-axis: 500 mm, Year of manufacture: 2005 Heidenhain iTNC 530 Machine ON: 108,310 h, Spindle ON: 34,700 h - Milling head manual swivel/clamp - Main spindle 18,000 rpm - SK 40 - 16 tool positions - Rotary/angle table - Standard coolant system - Chip tray Gbsdpfx Aoyhv Eqomyol - Observation windows - German documentation - Heidenhain measuring probe - Electronic hand control module - Chip flushing gun - Air blow-off device - Central blow air - U 740 with fixed table

Condition: ready for operation (used), Year of construction: 1999, operating hours: 26,863 h, functionality: fully functional, machine/vehicle number: 12803, travel distance X-axis: 600 mm, travel distance Y-axis: 450 mm, travel distance Z-axis: 450 mm, controller model: HEIDENHAIN TNC 430, 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 constitutes an obligation for timely collection between 01.12.2025 and 05.12.2025! Gjdpfx Amjxnkfkoyobl TECHNICAL DETAILS Travels Travel X: 600 mm Travel Y: 450 mm Travel Z: 450 mm Feed range in X: 1–2,000/3,0000 mm/min Feed range in Y: 1–2,000/3,0000 mm/min Feed range in Z: 1–2,000/3,0000 mm/min Rapid traverse in X axis: 35 m/min Rapid traverse in Y axis: 35 m/min Rapid traverse in Z axis: 35 m/min Clamping table surface: 800 x 465 mm Max. spindle speed: 12,000 rpm Measuring system resolution: 0.1 µm Input unit measuring system: 0.1 µm Display increment measuring system: 0.1 µm MACHINE DETAILS CNC control: HEIDENHAIN TNC 430 Dimensions & Weight Dimensions (L x W x H): 2800 x 2100 x 2700 mm Weight: 6,700 kg Operating hours Spindle hours: 26,863 h CNC controller operation hours: 81,084 h EQUIPMENT Individual feed motors for each axis – three-phase (brushless) Note: The clamping devices (vices, chucks, etc.) mounted on the worktable are not included in the scope of sale or delivery. The machine is offered without tool holders and tools.

Condition: ready for operation (used), Year of construction: 2001, operating hours: 20,222 h, functionality: fully functional, machine/vehicle number: 14631, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, spindle speed (max.): 16,000 rpm, spindle diameter: 70 mm, No reserve price – guaranteed sale to the highest bidder! The payment deadline for the machine is 20/11/2025! Placing a bid obligates you to collect the machine within the period from 01/12/2025 to 05/12/2025! TECHNICAL DETAILS Travel distances Travel range X-axis: 800 mm Travel range Y-axis: 600 mm Travel range Z-axis: 500 mm Rapid traverse in X, Y, and Z axes: 35 m/min Max. spindle speed: 16,000 rpm Clamping table surface: 1,000 x 560 mm Spindle taper: HSK A63 (DIN 69063) Spindle diameter at front bearing: 70 mm MACHINE DETAILS Control: HEIDENHAIN TNC 430 Dimensions & Weight Dimensions (L x W x H): 3,300 x 2,400 x 3,000 mm Weight: 7,000 kg Coolant tank capacity: 300 l Godpfjxnkwgex Amysbl Operating hours Spindle hours: 20,222 h Power-on hours: 49,977 h EQUIPMENT 3D probing system Technical documentation Note: The mounting plate currently fixed on the worktable, as well as tool holders and tools, are not included in the scope of delivery or sale.

Condition: new, Year of construction: 2025, operating hours: 671 h, functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 550 mm, travel distance Z-axis: 450 mm, rapid traverse X-axis: 35 m/min, rapid traverse Y-axis: 35 m/min, rapid traverse Z-axis: 35 m/min, controller manufacturer: Heidenhain, controller model: Heidenhain TNC7, workpiece weight (max.): 1,100 kg, table width: 800 mm, table length: 616 mm, rotational speed (min.): 20 rpm, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, Heidenhain TNC7 Spindle HSK-A63 16,000 rpm 30 tool positions Rigid clamping table 800x616 Internal coolant supply 40 bar with paper band filter Scraper belt conveyor Handwheel BLUM LC53-Digilog for tool breakage detection/measurement Touch probe BLUM TC Machine ON: 671 h Spindle ON: 61 h Gbsdpfoyf E Atjx Amyol Machine is approx. 6 months old. Offered for sale on behalf of customer. Inspection possible by prior arrangement.

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, overall weight: 6,200 kg, load capacity: 200 kg, controller model: KRC 2, No minimum price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Max. pallet weight: 200 kg Pallet size 1: 396 x 396 x 350 mm Gbjdjyfgbkjpfx Amyel Pallet size 2: 396 x 600 x 350 mm Number of pallet positions: 51 MACHINE DETAILS Control system: KRC 2 Total weight: 6,200 kg EQUIPMENT Documentation/manual Infinitely variable speed adjustment Robotic cell with KUKA robot KPC2 panel 16 matching pallets Plates for machine adaptation Rack Setup station

Condition: excellent (used), Year of construction: 2001, x-travel 600 mm y-travel 450 mm z-travel 450 mm Gsdevwgm Tjpfx Amysbl spindle turning speed range 16000 U/min control HEIDENHAIN TNC 430 Number of axles 5 simultan table rotating 360 ° taper ISO SK-40 table diameter 280 mm rapid traverse 30wer m/min tool change unit 30 -fach weight of the machine ca. 6,5 t dimensions of the machine ca. 3100 x 2400 x 2500 m his HERMLE C600U is in very good condition and available immediately. Hours on: - Machine ON: 65'656h - Spindle ON: 28'281h Equipment & Description: - Coolant outside with 6bar 3 nozzles - Manual canopy - Electr. heat compensation - Electr. handwheel iTNC - Measuring probe HEIDENHAIN - Blum tool breakage control - Documentation / Operating instructions - NEW air filter system CABARON type: COB-H10-2 (year of construction 2012 never in use) Option: - Div. tool holders ISO SK-40, 109 pcs.

Condition: ready for operation (used), Year of construction: 1999, operating hours: 2,466 h, functionality: fully functional, machine/vehicle number: 13147, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, table width: 560 mm, table length: 1,000 mm, TECHNICAL DETAILS Travel X-axis: 800 mm Y-axis: 600 mm Z-axis: 500 mm Spindle Speed range: 20 – 12,000 rpm Tool holder: SK40 Table Dimensions: 1,000 x 560 mm Tool magazine: 30 positions MACHINE DETAILS Weight: 7,000 kg Gbsdpsw Nqh Asfx Amysl Spindle hours: 2,466 h Machine operating hours: 34,485 h Power: 15 kW (at 40% duty cycle) Frequency: 50 Hz Operating voltage: 400 V Control voltage: 24 V Total rated current: 44 A EQUIPMENT Chip tray Heidenhain TNC430 control Heidenhain touch probe system Extraction unit Electronic handwheel

Condition: good (used), Hermle Centrifuge Z 200 A Small Centrifuge A compact centrifuge for doctors and clinical laboratories. The Z 200 A takes up to 12 x 15 ml tubes with conical and round bottom. Specifications . Gjdpfx Asm Albdjmyjbl Volume: max. 12 x 15 ml / 6 x 50 ml. Speed: max. speed/RCF: 6000 rpm / 4185 xg min. Speed/RCF: 250 rpm / 7 xg Speed range: 250 - 6000 rpm Speed setting: knob-controlled in 250 rpm steps Speed display: preset and actual speed - digital Running time: max. time: 30 min. / continuous run min. time: 0.5 min. Preselection: 0.5 - 30 min. / "Contin. Time setting: by push-button 0.5 min. increments Time display: remaining time - digital Brake: fixed braking force with soft stop Features: microprocessor-controlled - Microprocessor-controlled - DC motor, covered - ABS plastic housing shock and chemical resistant Safety: - Lid locking system - automatic unbalance indicator with safety cut-off - manufactured according to IEC 1010, UVV VBG 7z Dimensions (cm / inch): Width: 28 / 11.0 height: 26 / 10,2 Depth: 37 / 14.6 Weight: 15 kg / 33.0 lbs Power consumption: 180 W Item condition: used, top condition You can find more centrifuges - new and used - in our shop! International shipping costs on request!

Condition: ready for operation (used), Year of construction: 2001, operating hours: 10,249 h, functionality: fully functional, machine/vehicle number: 15137, travel distance X-axis: 1,000 mm, travel distance Y-axis: 630 mm, travel distance Z-axis: 550 mm, table width: 800 mm, spindle speed (max.): 7,000 rpm, number of slots in tool magazine: 28, Well-maintained machine with a spindle from 2022 TECHNICAL DETAILS Longitudinal travel (X): 1,000 mm Transverse travel (Y, slide): 630 mm Vertical travel (Z, milling head): 550 mm Control: Heidenhain TNC 430 C-axis: Full-featured A-head: Manually swivelable to 0° and 90° Spindle Spindle speed (max.): 7,000 rpm Spindle type: Geared spindle with high torque in the lower speed range Special feature: Suitable for M30 synchronous thread cutting Spindle head swivel (manual): ±90° Milling spindle diameter in the front bearing horizontal/vertical: 80 / 55 mm Tool changer: 28-station Working area Milling spindle vertical - Distance from milling spindle to top edge of rotary table: 130 - 680 mm Milling spindle horizontal - Milling spindle to the rotary axis of the milling head, rotary table: 140 - 690 mm Milling spindle vertical/horizontal - Distance from the milling spindle axis to the rotary axis of the milling head: 120/110 mm NC rotary table 4th axis: Ø 800 mm Condition & Maintenance Spindle: renewed 2022 Maintenance: carried out regularly Geometry: laser measured 2022 Tool changer: lifting unit recently replaced Maintenance reports: available MACHINE DETAILS Control on: 35,165 h Machine on: 21,574 h Program run: 11,750 h Spindle on: 10,249 h Gbsdpfxewmm D Ns Amyjl Axes in motion: 10,285 h Weight: 6,500 kg Rated power (apparent power): 17 kVA Input current: three-phase EQUIPMENT - Documentation and manual - Chip conveyor - A-head with manual tilt function to 0° and 90° - Tool changer with new lifting unit - Spindle with high performance in the lower speed range, suitable for M30 synchronous threads - Maintenance and geometry reports available

Year of construction: 1969, condition: used, machine/vehicle number: 304, Manufacturer: Hermle Model : FW 800 Machine No. : 304 Year of manufacture: 1969 Weight: approx. 1000 KG General / technical data: well preserved used horizontal milling machine with hydraulic program control (cam control bar) for automatic production process. admission: SK 30 travel: X 400mm Y 370mm Z 165mm Speed: 18 pieces mechanically switched in 2 motor steps 85, 120, 145, 180, 205, 280, 300, 400, 470, 590, 680, 840, 100, 1210, 1420, 1780, 2030, and 3050 rpm feeds: in X and y axis stepless hydraulic in z ( horizontal milling spindle) manual table dimensions (rigid table): 800mm x 220mm power supply / spindle motor power: 380Volt 50 HZ / 1,5 KW Gbsdpfxjdgrwdj Amyjl approx. space requirement of the machine: 1900mm x 1100mm x 1700mm (bxtxh) Accessories / special equipment: - Rigid fraestable - Item various tool holders - spittoon - cooling device - Machine documentation with program instructions Remarks The machine is in a very good condition according to its age. The machine is preferably designed for the production of small and medium series. The machine has a simple hydraulic program control controlled by a cam switch.

Condition: ready for operation (used), Year of construction: 2004, operating hours: 18,396 h, functionality: fully functional, travel distance X-axis: 650 mm, travel distance Y-axis: 450 mm, travel distance Z-axis: 450 mm, controller model: Heidenhain 530, number of axes: 3, In 2022, the tool magazine door was replaced. In 2023, the SIMODRIVE 611/18A servo converter was replaced! Gbedpfx Ajx Up E Esmysl TECHNICAL DETAILS Travel X-axis: 650 mm Travel Y-axis: 450 mm Travel Z-axis: 450 mm Tool holder: SK 40 Number of axes: 3 MACHINE DETAILS Control: Heidenhain 530 Operating hours Spindle hours: 18,396 Machine hours: 56,040

Condition: used, TECHNICAL DETAILS - Number of axes : 5 MILLING SPINDLE - Tool holder type : HSK63 - Spindle power : 17.5 [kW] - Spindle speeds : 18.000 [rpm] LINEAR AXES - Travels on X/Y/Z axes : 915 / 500 / 500 [mm] - Rapid traverses rates (X/Y/Z) : 30 / 30 / 20 [m/min] TOOL CHANGER - Tool magazine capacity : 28 TABLE - Table dimensions : Ø 630 [mm] - Maximum weight upon table : 500 [kg] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 26 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 3620 x 3160 [mm] - Machine height : 3000 [mm] - Machine weight : 7300 [kg] MACHINE HOURS - Number of working hours : 48894 [h] EQUIPMENT - CNC : Heidenhain iTNC 530 - Coolant tank - Chips conveyor Godjup Hw Eepfx Amysbl - Oil mist extractor : ELBARON - Cooling unit : HYDRAC COOLING FLKS 170S/2.3W/TP/400-50/1/14 - Workpiece probe : Renishaw - Tool breakage detection : BLUM

Condition: used, machine/vehicle number: 2880, x-travel:290 mm y-travel:120 mm z-travel:350 mm table surface area:690 x 175 mm spindle taper:SK40 turning speeds steps:17 feed range:42 - 680 mm/min feed steps:14 Gedpfscxxntex Amyobl turning speed range:50 - 2240 U/min weight of the machine ca.:0,6 t with swivelling vertical head +/- 90°, double-pole switchable, reversing spindle drive, vernier hand wheels on all 3 axes plus fast-adjustment on x-axis with capstan, x-axis with electric feed, feed steps adjustment via change gear, upper rail for horizontal milling, triple cam switch on x-axis for running programs, emergency cut-offs on control panel and main switch

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, controller manufacturer: Heidenhain, table width: 480 mm, table length: 900 mm, overall weight: 7,300 kg, Equipment: documentation/manual, TECHNICAL DETAILS Fixed table: 900 x 480 mm MACHINE DETAILS Control: HEIDENHAIN Electrical Data Net weight: 7,300 kg Gbjdpfx Amexl Sunsysl Operating voltage: 400 V / 3~ Mains frequency: 50 Hz Control voltage: 24 V Total power: 26 kVA Total rated current: 37 A Weight: 6,300 kg EQUIPMENT Tool changer

Condition: ready for operation (used), Year of construction: 2001, functionality: fully functional, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, table width: 1,000 mm, table length: 560 mm, TECHNICAL DETAILS Travel distances x-axis travel: 800 mm y-axis travel: 600 mm z-axis travel: 500 mm Table Clamping surface: 1,000 × 560 mm Spindle Milling spindle speed: 10,000 rpm Tool holder – diameter: SK40 mm Control CNC control: TNC430 Tool magazine Number of tools: 30 MACHINE DETAILS Electrical data Total power requirement: 35 kW Weight and dimensions Machine weight: approx. 8.50 t Space requirement: approx. 2.90 × 3.50 × 3.00 m Gedpfxewynuce Amyobl EQUIPMENT Swivel vice integrated into the left side panel with counter bearing (controlled 4th axis) Centre height 160 mm / centre width 500 mm Wireless measuring probe MP10 Chip tray with coolant pump

Condition: used, Year of construction: 2010, USED MACHINING CENTER HERMLE MODEL C 40 UP Year of manufacture: 2010 Control unit: HEIDENHAIN iTNC 530 Travel: X 850 mm, Y 700 mm, Z 500 mm Linear axes (X-Y-Z): Dynamic version Milling spindle: 18,000 rpm Spindle taper: HSK-A63 Tool magazine with 38 positions NC tilting rotary table, diameter 800 mm for PALLET CHANGER C axis with torque motor, A axis with tandem drive includes pallet clamping system, hydraulic and pneumatic extension, bed wash, automatic opening/closing cabin door (Load capacity 1,400 kg) Pallet changer device PW 800 for SRT 800 PW - 630 x 630 Load capacity: 800 kg Rotating load/unload station for PW 800 Additional control for clamping system operation for PW 800 Internal coolant supply 80 bar including: Paper filter, Standard coolant system, Linear scale pressurization, bed wash Chip conveyor Air blow cleaning device Manually opening/closing cabin cover Polycarbonate safety windows HEIDENHAIN thermal compensation Electronic handwheel Renishaw touch probe incl. pre-arrangement Laser system – Blum Chip cleaning gun Signal lamp 2 pallets 630x630 mm Additional articulated arm Gbjdexvq Iujpfx Amyol