Used Cutting-Off Machine for sale (71,826)

Condition: new, functionality: fully functional, Year of construction: 2025, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Series: NS-HG Type: Heavy pipe machine Beveling function: Optional Power range: Round pipe processing: 50mm~560mm Square pipe processing 50mm~560mm Chuck maximum 30r/min Machine weight: 29t Power specification: 380VAC, 50Hz Optional loading rack: Three-chuck chain automatic loading rack Bjdpfx Aoww Upzjglecu Optional unloading rack: Three-chuck chain automatic unloading rack Standard: System 5000A, including nesting, supports servo (beveling) Zero tail material rear card hollow dust removal Optional: Weld detection, safety fence (light curtain), radiation-proof glass

Condition: new, functionality: fully functional, Year of construction: 2025, control type: CNC control, laser type: fiber laser, pipe diameter (max.): 9,000 mm, input voltage: 380 V, input frequency: 50 Hz, type of cooling: water, warranty duration: 24 months, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, model: GS-HG Maximum length of pipe: Bcedpfx Agewwqvwslju

Condition: new, functionality: fully functional, Year of construction: 2025, laser type: fiber laser, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Cutting format (mm): 12000*2500 X-axis travel (mm): 2530 Y-axis travel (mm): 12050 Bedswwz Dxspfx Aglecu Z-axis travel (mm): 120 Maximum synthetic positioning speed (m/min): 140 Acceleration (G): 1.5 Main unit volume (mm): 15600*3650*1900 Floor area (mm): 16000*5500 Total machine weight (KG): 12500

Condition: new, functionality: fully functional, Year of construction: 2025, laser type: fiber laser, laser power: 40,000 W, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, Type: exchange table, fully protected exchange table, ultra-high power, dual platform Laser power: 12KW15KW, 20KW, 30KW, 40KW, 3KW.6KW Standard hardware: scrap car, fire brick, fully automatic butter filling, dual-control workbench, adaptive multi-angle site placement, rear lift light-blocking door, rear camera, internal camera, monitoring display, radiation-proof glass, top cover beam light curtain, partition dust removal Optional hardware: light-blocking rubber strip, high-pressure proportional valve (standard above 6KW), safety door lock, independent laser cabinet, rear exchange table light curtain, top cover fan Bsdpfx Ajwxam Isglscu Optional functions: FDA configuration, CSA configuration, TUV configuration, conventional CE configuration

Condition: new, functionality: fully functional, Year of construction: 2025, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, High-strength welding bed Partitioned smoke extraction system Fully automatic butter injection system Fully automatic cutting, material saving, fast speed Cutting area 4000 × 2000 mm Bcjdpsw A Iiljfx Agleu X‑axis travel 1520 mm Y‑axis travel 4020 mm Z‑axis travel 80 mm Max. combined positioning speed 170 m/min Acceleration 2.8 G Machine dimensions (L×W×H) 9500 × 2900 × 2380 mm Footprint 10500 × 3400 mm Net weight 8500 kg

Condition: new, functionality: fully functional, Year of construction: 2025, travel distance X-axis: 50,000 mm, travel distance Y-axis: 4,000 mm, input voltage: 380 V, input frequency: 50 Hz, warranty duration: 24 months, Equipment: cooling unit, GS-50040LB (Bevel Cutting) Ultra-Large Format Laser Cutting Machine 40kW Bevel Cutting + 60kW Straight Cutting Dual Beam, Dual Head, Dual Ultra Ultra-Large Cutting Area: 50m × 4m Dual High-Power Cutting Heads – 60kW Straight & 40kW Bevel Cutting Precision Cutting for Ultra-Thick Plates Bevel Cutting Performance: ✔ Y-Bevel: 40kW | 20mm Carbon Steel | 1.4m/min ✔ K-Bevel: 40kW | 30mm Carbon Steel | 0.35m/min ✔ V-Bevel: 40kW | 50mm Carbon Steel | 0.2m/min Bcodev Ng E Tjpfx Aglsu ✔ Straight Cutting: 60kW | 150mm Carbon Steel | 0.3m/min Applications: Aerospace | Shipbuilding | Bridges | Heavy Machinery

Condition: new, functionality: fully functional, Year of construction: 2025, laser type: fiber laser, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, emergency stop, fume extraction, nozzle changer, safety light barrier, GS-20050H0G Section Steel Laser Cutting Machine Beam cross-section size: 450×400mm Beam center span: 2400mm Bevel cutting highly enhances competitiveness Smart cutting head equipped with professional Acu3D rotary axis Achieves multi-directional, multi-angle 3D cutting (Web beveling, R-corner cutting, V bevel, Y bevel) Versatile cutting Sheet, tube, and section steel cutting in one One-stop processing workflow, seamlessly integrated with TEKLA Easily complete drawing import - nesting & programming - process setup - material alignment - cutting Tube cutting Supports high-precision cutting of round tubes Bodpew I Iliefx Aglscu with diameters from 600–1200 mm Section steel cutting Supports cutting of H-beams up to 1200 mm

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2005, operating hours: 11,000 h, controller model: Sinumerik 840D, laser power: 2,700 W, sheet thickness steel (max.): 6 mm, sheet thickness aluminum (max.): 4 mm, working length: 6,500 mm, TruLaser Tube 5000 with Special Equipment: Laser TruFlow 2700 & SeamLine Tube! TECHNICAL DETAILS Laser Power: 2,700 W Maximum Sheet Thickness (Steel): 6 mm Maximum Sheet Thickness (Aluminum): 4 mm Working Area: 6,500 mm Bedpfx Asyanr Teglocu MACHINE DETAILS Laser Type: TruFlow 2700 Control System: Sinumerik 840D Laser Operating Hours: 11,000 h EQUIPMENT - Documentation / Manual - Safety light curtain - Sturdy machine frame with integrated laser unit - CO2 laser TruFlow 2000, high-frequency excited, with cooling unit - Maintenance-free three-phase servo motors - NitroLine high-pressure cutting - SprintLine for rapid processing - Programmable cutting gas pressure control - Laser cutting head with 5 lenses - Quick-change device for the cutting head - Laser power control - Laser logbook function - Automatic shutdown - Workspace illumination - Multi-beam light curtains - Fully enclosed and ventilated beam guidance - Compact dust extractor - Protective enclosure - PRS 3001 discharge station with brush table - Set of clamping jaws D 20–85 mm and D 85–150 mm - 1 set of V-shaped form shells and guide rollers for round tubes - 1 set of U-shaped form shells and guide rollers for a circumscribed diameter of 120 mm - SeamLine Tube

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2008, operating hours: 22,600 h, machine/vehicle number: A0230A2187, laser power: 7,000 W, sheet thickness steel (max.): 25 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, travel distance Z-axis: 116 mm, No minimum price – guaranteed sale to the highest bidder! TruLaser 5030 Laser Cutting Machine with Special Equipment TruFlow 7000! TECHNICAL DETAILS Laser power: 7,000 W Travel X-axis: 3,000 mm Travel Y-axis: 1,500 mm Travel Z-axis: 116 mm Max. sheet thickness (steel): 25 mm Max. sheet thickness (aluminum): 20 mm X-axis feed rate: 200 m/min Max. workpiece weight: 900 kg MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 11,100 x 4,600 x 2,600 mm Total weight: 12,000 kg Control system: SINUMERIK 840D Laser type: TruFlow 7000 Laser hours: 22,600 h Bjdpfx Ageyanplelocu EQUIPMENT • Enclosed machine frame with integrated laser unit • Motion unit for ultra-precise machining • Gantry drive combined with linear direct drives • Enclosed beam guidance • Single cutting head strategy • TFT color monitor • Longitudinal conveyor belt for small parts and scrap • Automatic pallet changer • Work area lighting • Positioning laser diode • Oil spray device • Piercline • FocusLine • NitroLine • PlasmaLine • CO2 Laser TruFlow • Maintenance-free turbo radial blower • Lens cutting head with 250 mm lens • Universal quick-change device (UTI) with bus connection • LensLine with condition monitoring • ControlLine: height control and sheet edge detection • Auto shut-off • ConturLine • FastLine • FlyLine • Microweld • USB interface • RJ-45 network connection • CE marking • Light barriers • Multi-chamber extraction system • Compact dust extraction unit • Complete operating manuals • Lens cleaning kit • Transport locks • Crosshairs/ measuring bridge

Condition: ready for operation (used), Year of construction: 2020, functionality: fully functional, machine/vehicle number: 89N1160, cutting width (max.): 800 mm, insertion depth: 800 mm, overall weight: 900 kg, reverse speed: 70 mm/s, TECHNICAL DETAILS Cutting width: 800 mm Bcsdpfx Aoycr Ikjglou Insertion depth: 800 mm Maximum operating height: 100 mm Pressing force: 180–2,700 daN Minimum cut without cover plate: 15 mm Minimum cut with cover plate: 50 mm Return speed: 70 mm/s MACHINE DETAILS Power consumption: 4.0 kVA Power supply: 400 V, 50 Hz, 2.6 A Control: 18.5" touchscreen Program memory: 1,998 jobs Total cuts: 24,551 Weight: 900 kg Table: Stainless steel with air support EQUIPMENT 1× mounted POLAR 78 1× new POLAR 78 SKH-2, 960×110×11.7 mm Process visualization Hydraulic swinging angled cut LED cutting line indicator Air table Robust machine body Ultra-fast knife change with POLAR OptiKnife New spare knife

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2012, operating hours: 18,000 h, machine/vehicle number: A0215A0232, laser power: 2,500 W, sheet thickness (max.): 15 mm, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,500 mm, positioning accuracy: 0.1 mm, overall weight: 8,900 kg, TECHNICAL DETAILS X-axis travel: 3,000 mm Y-axis travel: 1,500 mm Bcodpfxoyb Rzyj Aglou Laser power: 2,500 W Maximum sheet thickness (mild steel): 15 mm Maximum sheet thickness (stainless steel): 6 mm Maximum sheet thickness (aluminum): 5 mm Axis speed: max. 60 m/min Positioning accuracy: ±0.1 mm MACHINE DETAILS Dimensions & Weight Dimensions (L × W × H): approx. 7,400 × 3,300 × 2,300 mm Machine weight: 8,900 kg Mains connection: 400 V / 50 Hz Connected load: 65 kVA Control voltage: 24 V Required fuse protection: 3 × 100 A Compressed air connection: 7–14 bar Nitrogen connection (N₂): 29 bar Oxygen connection (O₂): 14 bar Operating hours: approx. 18,000 h EQUIPMENT Automatic pallet changer FocusLine laser technology NitroLine laser technology Maintenance-free AC servo drives

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, machine/vehicle number: 724, saw blade diameter: 600 mm, table height: 850 mm, positioning accuracy: 0.4 mm, rotational speed (max.): 3,000 rpm, working length: 8,000 mm, TECHNICAL DETAILS Saw blade diameter: 600 mm Motor power: 12.5 HP Saw blade speed: 3,000 rpm Working table height: 850 mm Extraction ports: 3 units, diameter: 100 mm Max. working length: 8,000 mm Positioning accuracy: +/- 0.4 mm Cutting capacities Width 610 mm, height: 30 mm Width 580 mm, height: 60 mm Width 530 mm, height: 100 mm Width 490 mm, height: 120 mm Width 450 mm, height: 140 mm Width 380 mm, height: 160 mm MACHINE DETAILS Drive system of saw unit: hydraulic Discharge area: 4,000 x 600 mm Compressed air requirement: 7 bar Dimensions & Weight Overall dimensions of assembled machine (L x W x H): 13,000 x 2,000 x 1,600 mm Transport dimensions (L x W x H): Machine 1,200 x 1,700 x 1,600 mm Transport dimensions (L x W x H): MATRIX pusher 8,800 x 1,500 x 1,500 mm Weight: 1,600 kg Bodpfx Agjyf Evyslscu EQUIPMENT Feed system with precision rack and pinion and brushless motor Position measurement via magnetic tape Pneumatic lifting of the pusher with workpiece measuring probe Cutting cycle control via keyboard or remote PC Operator software with 99 programmable cutting cycles Operator software with 1 cutting cycle for 100 programmable dimensions Safety cover for cutting area Two-hand operation safety device Discharge flat table

Condition: ready for operation (used), functionality: fully functional, cutting length (max.): 3,550 mm, cutting width (max.): 530 mm, overall weight: 9,000 kg, stroke length: 100 mm, TECHNICAL DETAILS Usable cutting length (as double guillotine): 3,200 mm Usable cutting length (as single plate shear): 3,550 mm Press stroke: 100 mm Press width: 550 mm Bcodsyf Eucjpfx Aglju Min. cutting width: 18 mm Max. cutting width: 530 mm Scrap setting range: 0/50 mm Operating pressure: 6/7 bar MACHINE DETAILS Installed total power: 13.9 kW Dimensions & Weight Dimensions (L x W x H): 5,200 x 1,700 x 1,800 mm Weight: 9,000 kg EQUIPMENT Robust steel construction Blade beam made of cast iron Self-lubricating prismatic guides Adjustable rear support Press for holding the veneer package during cutting Photoelectric cells Electronic programming device Perimeter safety guards

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2019, machine/vehicle number: 10089060/30042621, total length: 5,300 mm, total width: 2,100 mm, total height: 2,300 mm, year of last overhaul: 2024, The machine was last overhauled in 2024! TECHNICAL DETAILS Material loading area: 4,000 mm x 2,000 mm MACHINE DETAILS Bcsdpfx Aeyfv Exjglsu Dimensions (L x W x H): 5,300 x 2,100 x 2,300 mm EQUIPMENT Service and inspection history available from 2019

Condition: new, Year of construction: 2022, Base sheet fiber laser metal cutting machine with full protection Maximum cutting area reaches up to 12000mm*2500mm, suitable for a variety of cutting options. The special fiber laser nozzle and cutting process ensure faster carbon steel oxygen cutting, more gas-saving low-pressure stainless steel nitrogen cutting, and better-quality carbon steel air cutting. Cutting performance and efficiency are improved by maintaining gas flow steady with little turbulence. Fiber laser heads are able to detect jutting obstacles to effectively reduce the damage rate and save the maintenance cost of a laser cutter. The cutting process works even at the edge of thin sheets, and ensures no chatter marks. With One-click Processing, one laser cutter is able to process multiple sheets in batches with a one-off setup, achieving batch processing. Condition: New Laser Type: Fiber Laser Laser Power: 1000W - 40000W Cutting Area: 3048*1524mm - 12500*2600mm Cutting Speed: 0-110m/min Positioning accuracy: ±0.05mm Repositioning accuracy: ±0.03mm Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT CNC or Not: Yes Cooling Mode: WATER COOLING Bcjdpfjhwhfqsx Aglou

Year of construction: 2008, operating hours: 1 h, condition: used, functionality: fully functional, machine/vehicle number: STCOS M5, Burr Oak Single Tube Cut-Off System Model: STCOS M5 Year:2007 Specifications Machine Code: LHM, SWS, 36HF, SCO, SPA, 12ROHG, ECTG Cut-Off - Tcd Standard Hitch Feed - Tcd Bcjdpfx Ajv Nak Asglju Standard Straightener – Tcd Standard W/ Sizing Pull-Apart – Tcd Standard Coil Stand – Tcd 3 Position Over Head Uncoiler Runout Table - Tcd 12’ Runout Table W/ Hinge Gate Supply: 480 Volts, 3 Phase, 60 Hertz Control: 110/24 Volts Extra Options The Hinge Gate Run Out Table Needs To Be Able To Switch From One Side To The Other Tooling – Tcd .500” O.D. Complete Set With 14 Straightening Rolls, 4 Sizing Rolls 6 Pair Clamp Jaws (Total), 1 Exit Guide Tube, (3) Tube Entry Bullets And Connectors .375” O.D. Complete Set With 14 Straightening Rolls, 4 Sizing Rolls 6 Pair Clamp Jaws (Total), 1 Exit Guide Tube, (3) Tube Entry Bullets And Connectors

Condition: new, Year of construction: 2025, Entry-level sheet fiber laser metal cutting machine Lower laser cutting cost and easy operation The modular cutting machine table with stiffeners saves time for disassambly and improves convenience and rigidity. The special fiber laser nozzle and cutting process ensure faster carbon steel oxygen cutting, more gas-saving low-pressure stainless steel nitrogen cutting, and better-quality carbon steel air cutting. Fiber laser heads are able to detect jutting obstacles to effectively reduce the damage rate and save the maintenance cost of a laser cutter. Applicable Material: metal Condition: New Laser Type: Fiber Laser Bcodpfxehwrgto Aglju Laser Power: 1000W, 1500W, 2000W, 3000W Cutting Area: 3000*1524mm Positioning accuracy: ±0.05mm Repositioning accuracy: ±0.03mm Cutting Speed: 0-100m/min Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT CNC or Not: Yes Cooling Mode: WATER COOLING

Condition: new, Year of construction: 2025, Entry-level sheet fiber laser metal cutting machine Lower laser cutting cost and easy operation The modular cutting machine table with stiffeners saves time for disassambly and improves convenience and rigidity. The special fiber laser nozzle and cutting process ensure faster carbon steel oxygen cutting, more gas-saving low-pressure stainless steel nitrogen cutting, and better-quality carbon steel air cutting. Fiber laser heads are able to detect jutting obstacles to effectively reduce the damage rate and save the maintenance cost of a laser cutter. Applicable Material: metal Bsdpfshv Hkaox Agljcu Condition: New Laser Type: Fiber Laser Cutting Area: 3000*1500mm Cutting Speed: 0-40000mm/min Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT Cutting Thickness: 0-30mm CNC or Not: Yes Cooling Mode: WATER COOLING

Condition: new, Year of construction: 2025, All-round sheet fiber laser metal cutting machine Equipped with automatic functions of nozzle changing and one-click processing, P-Series is competent for all cutting demands. Flake graphite in the cutting machine bed improves greatly the shock absorption and wear resistance, and residual stress almost disappears after age hardening, therefore, precision and lifetime of the equipment are improved, and costs saved. The special fiber laser nozzle and cutting process ensure faster carbon steel oxygen cutting, more gas-saving low-pressure stainless steel nitrogen cutting, and better-quality carbon steel air cutting. Fiber laser heads are able to detect jutting obstacles to effectively reduce the damage rate and save the maintenance cost of a laser cutter. The fully closed-loop control adjusts according to feedback to ensure that the actual motion position is consistent with the theoretical input value. With One-click Processing, one laser cutter is able to process multiple sheets in batches with a one-off setup, achieving batch processing. Condition: New Laser Type: Fiber Laser Laser Power: 1500W - 30000W Bsdehwhf Aspfx Agljcu Cutting Area: 3048*1524mm - 6100*2500mm Cutting Speed: 0-169m/min Positioning accuracy: ±0.03mm - ±0.05mm Repositioning accuracy: ±0.02mm - ±0.03mm Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT CNC or Not: Yes Cooling Mode: WATER COOLING

Condition: new, Year of construction: 2025, Laser power: 6000W/12000W/20000W Applicable Material: metal Condition: New Laser Type: Fiber Laser Cutting Area: 3000*1500mm Cutting Speed: 200m/min Graphic Format Supported: AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT Cooling Mode: WATER COOLING Certification: CCC, CE, GS, ISO, Sgs Laser Source Brand: IPG/MAX Weight (KG): 11000KG Warranty: 3 years Power supply: 110V/220V/380V 50Hz/60Hz 1. Flagship Series Bcodpfjg Tu N Ajx Aglsu Super dynamic responding, easily handle complex patterns of sheets. 2. Automatic Edge-finding With the capability of identifying irregular sheets, the edge searching time is decreased to 3 seconds. 3. Automated Nozzle Changer The machine changes its nozzle within 35 seconds at the fastest speed - this saves 50% of time costs.

Condition: excellent (used), Year of construction: 1991, Ref:11067 . 1991 Wohlenberg 115 MCS-3 TV Guillotine. Last supplied fully overhauled 2011. Microcomputer programming with static back gauge - 1024 Data-blocks, 1-99 programmes with LED display. Semi or fully automatic cutting Side air tables L & R Bcedpfx Aeydnw Djgleu Central air table Cutting area illumination Variable pressure hydraulic clamp 2 x HSS knives Safety knife change device - machine assisted Overload device with safety bolt FFM guarding to U.K. HSE specifications Including tools, spares & manuals. Accessories: 2000 Polar LW 1000-4 pile lift 2000 Polar RA4 jogger with air removing roller. Specification: Cutting width, Max: 115 cm Clamp opening, Max: 14.5 cm Depth of rear table, Max: 115 cm Cuts per minute, Max: 40 Clamp pressure : 2.5 - 40 kN Power requirement : 3 kW

Condition: new, The ACE Laser Compact 1313 2.0 R, a state-of-the-art Laser Cutting Machine from KNUTH, is designed to set new standards in price and performance within the Laser Cutting Machines product group. This compact laser cutter is optimized for highly efficient processes, making it ideal for both large production centers and smaller workshops due to its minimal footprint. Built on a robust steel weldment frame, the machine features a lightweight gantry constructed from aluminum die-cast, ensuring both high rigidity and superb dynamics. The linear guides on all axes provide exceptional precision and require minimal maintenance, supported by preloaded ball drives that enhance positioning accuracy. You can easily monitor the cutting process through a safety glass window, while its intuitive PC-based control allows for straightforward operation with a technology database that simplifies programming. The ACE Laser Compact 1313 2.0 R ensures top performance in laser cutting with its powerful Raycus laser source, automatic focus positioning, and efficient nesting software that minimizes material waste. To find out more about this impressive Laser Cutting Machine or to request a quote, please visit our website. Bjdpfx Aonh Ng Deglscu

Condition: excellent (used), functionality: fully functional, Year of construction: 2004, Operating hours: approx. 68,000 hours Bsdpfx Aoygik Doglecu

Condition: good (used), Year of construction: 2011, functionality: fully functional, Technical details gangway length 14000 mm working width 3700 mm burner heads 6 Bodpfx Ajyf Eddoglecu Control CNC 802 Additional information Used oxyfuel cutting machine with semi-automatic gas control and 6 oxyfuel torches Working width 3700 mm Track width 4500 mm Overall width 5320 mm Overall height 2100 mm Height above floor to bottom edge of torch support on track beam mounted 1300 mm, floor-mounted without beam 1000 mm Track length 16000 mm on HE 300 B beam Oxyfuel burner: 6 pieces with MS 832-250 blades Burner carriages: 6 pieces, maintenance arm mounted on round bar Burner height adjustment: 6 pieces E 260 with 260 mm stroke Maximum cutting thickness with 4 torches: 300 mm Maximum cutting thickness with 6 torches: 200 mm Feed speed: 12000 mm/min CNC 802 control with vibration-resistant flash memory Semi-automatic gas control via proportional valves 96 macros (modifiable standard shapes) Easy to learn USB interface CNC Cut software for importing and converting DXF files 15" screen behind shatterproof, scratch-resistant glass, operable even with gloves. Note: A burner table and an extractor are not included in the scope of delivery.

Condition: excellent (used), Year of construction: 2001, operating hours: 47,000 h, Large format Bodpfxsxl R I To Aglscu Operating hours: 47,000 hours