Used Ajax Ajev 180 for sale (6,221)

Condition: excellent (used), RS-Simulators Climate Chamber KSS 600/75-10K Device Data Manufacturer: RS-Simulators Prüf- und Messtechnik GmbH Type: KSS 600/75-10K Design: Climate test chamber / Environmental simulation chamber Cooling: Water-cooled Description Used climate test chamber from RS-Simulators. Suitable for temperature tests, climate tests, material and aging tests. Application in industrial testing and measurement. Technical Data Temperature range: -75 °C to +180 °C Temperature change: Heating/cooling approx. 10 K/min Test chamber volume: approx. 600 liters Lodpfx Amjy H Ib Ajroac Dimensions Internal (W x D x H): 840 x 840 x 840 mm External (W x D x H): 1200 x 1600 x 1995 mm Electrical Data 400 V / 3~ / N / PE Current consumption: approx. 55 A Refrigeration System Refrigerant: R404A / R23 R404A: 6.0 kg R23: 3.0 kg Weight approx. 1400 kg Equipment RS-Simulators control panel / operating panel Program operation Observation window Temperature monitoring in the test chamber Operating hour counter Side feed-through Robust industrial design Scope of delivery RS-Simulators climate chamber KSS 600/75-10K Scope of delivery as shown in the pictures Functional test Refrigerant service Leak test Condition: Used. Condition: See pictures. Inspection possible by arrangement. Loading and transport can be organized upon request. Subject to changes and prior sale. If you have any questions, please do not hesitate to contact us.

Condition: good (used), Hydraulic cylinders, support cylinders, hydraulic rams, pressure rams Ledpfxjb A H Rys Amroac -Tube diameter outside: 180 mm -Piston: Ø 115/145 mm -Stroke: 620 mm -Weight: 87 kg

Condition: used, functionality: fully functional, machine/vehicle number: JUN4888, Year of construction: 2007, operating hours: 14,370 h, load capacity: 18,000 kg, lifting height: 3,500 mm, fuel type: diesel, mast type: simplex, construction height: 3,350 mm, power: 173 kW (235.21 HP), fork length: 1,800 mm, empty load weight: 26,860 kg, total length: 7,050 mm, drive type: Diesel, construction width: 3,050 mm, Side loader Chassis number: JUN4888 Load center: 900 Fork width: 200 mm Fork thickness: 100 mm Mast type: Standard Transmission: Hydrostatic Condition: Ready for use and fully functional Technical condition: normal Lsdoyulh Ujpfx Amroac Front tire type: Pneumatic Front tire size: 14.00-24 Front tire condition: 60 - 80% Rear tire type: Pneumatic Rear tire size: 14.00-24 Rear tire condition: 60 - 80% Description: In addition to this MAKE - MODEL, we have approximately 150 heavy-duty forklifts, container stackers, reach stackers, forklifts and terminal tractors in our Oldenburg warehouse. Visit our website - hinrichs-Forklifts. Leasing, hire purchase and financing at favorable terms are always possible for us. We also gladly purchase your used vehicles, even if you do not purchase a vehicle from us. Call me, Marco Levermann, and I will be happy to provide you with detailed advice on this MAKE - MODEL. By the way: Our forklift specialist workshop specializes in the repair and maintenance of large equipment from 8 tons upwards. We also offer consignment sales for your vehicle. 3rd valve, 4th valve, full cabin.

Condition: used, functionality: fully functional, machine/vehicle number: JUN4888, Year of construction: 2007, operating hours: 14,370 h, load capacity: 18,000 kg, lifting height: 3,500 mm, fuel type: diesel, mast type: simplex, construction height: 3,350 mm, power: 173 kW (235.21 HP), fork length: 1,800 mm, empty load weight: 26,860 kg, total length: 7,050 mm, drive type: Diesel, construction width: 3,050 mm, Diesel forklift Chassis number: JUN4888 Load center: 900 Fork width: 200 mm Fork thickness: 100 mm Mast type: Standard Transmission: Hydrostatic Condition: Ready for use and fully functional Technical condition: Normal Front tire type: Pneumatic Front tire size: 14.00-24 Front tire condition: 60 - 80% Rear tire type: Pneumatic Lajdpfx Amjyulh Ierjc Rear tire size: 14.00-24 Rear tire condition: 60 - 80% Description: In addition to this MAKE - MODEL, we have approximately 150 heavy-duty forklifts, container forklifts, reach stackers, forklifts, and terminal tractors in our Oldenburg warehouse. Visit our website - hinrichs-Forklifts. Leasing, hire purchase, and financing at fair conditions are always possible for us. We would also be happy to buy your used vehicles, even if you do not purchase a vehicle from us. Call me, Marco Levermann, and I will be happy to provide you with detailed advice on this MAKE - MODEL. By the way: Our specialist forklift workshop is specialized in the repair and maintenance of large equipment from 8 tons upwards. We would also be happy to offer your vehicle for consignment sale. 3rd valve, 4th valve, full cabin.

Condition: good (used), Upper support Sled width 145 mm Height 72 mm Bolt circle 180 mm Centering pin diameter 70 mm Contact surface 240 x 220 mm Lajdpfx Amjdq Nvijrec Weight 23 kg Shipping dimensions: L 490 mm W 220 mm H 270 mm

Condition: excellent (used), Vötsch VC³ 4018 Climate Test Chamber Manufacturer: Vötsch Industrietechnik GmbH Type: VC³ 4018 Machine Type: Climate Test Chamber / Temperature Test Chamber Design: Air-cooled Test Chamber Volume: approx. 190 liters For sale is a used climate test chamber from the manufacturer Vötsch. The VC³ 4018 is suitable for temperature and climate tests, environmental simulation, material testing, electronics testing, quality assurance, as well as research and development applications. Technical Data: Temperature Range: -40 °C to +180 °C Temperature Change Rate (Heating): approx. 4 K/min Temperature Change Rate (Cooling): approx. 4 K/min Max. Heat Compensation in Temperature Operation: approx. 2300 W Temperature Deviation (Time): ± 0.1 to ± 0.5 K Temperature Homogeneity (Spatial): ± 0.5 to ± 1.5 K Climate Range (Temperature): +10 °C to +95 °C Dew Point Range: -3 °C to +94 °C Humidity Range: 10 to 98 % RH Temperature Deviation (Time) in Climate Operation: ± 0.1 to ± 0.3 K Temperature Homogeneity (Spatial) in Climate Operation: ± 0.5 to ± 1 K Humidity Deviation (Time): ± 1 to ± 3 % RH Heat Compensation in Climate Operation: approx. 400 W Test Chamber Dimensions (approx.): 580 x 450 x 750 mm (W x D x H) Housing Dimensions (approx.): 870 x 1550 x 1800 mm (W x D x H) Weight (approx.): 470 kg Refrigerant: R404A Refrigerant Quantity: 2.50 kg ND max.: 22.5 bar g HD max.: 25 bar g Mains Connection: 3/N/PE AC 400 V ±10 % / 50 Hz Rated Power: 4.1 kW Rated Current: 14 A Test Chamber Lighting: Halogen, 2 x 24 V / 50 W Equipment Touch Panel Operation Lodpozc Ht Iefx Amroac Viewing Window in the Door Stainless Steel Test Chamber Test Chamber Lighting Side Pass-Throughs Shelves / Interior Fittings as Shown in Pictures Documentation / Operating Manual Further Accessories as Shown in Pictures Condition Used Optical Condition as Shown in Pictures Scope of Delivery as Shown Inspection Possible by Appointment Safety Note For the safety of our customers, the following work will be carried out on the offered climate chambers in advance: 1. Functional check and replacement of any necessary components 2. If necessary, refilling with legally compliant refrigerant 3. Leak test with certificate 4. Documented test run after successful inspection Due to the size and weight, shipping by freight forwarder is recommended. Scope of delivery as shown. Subject to change and errors in the technical data, as well as prior sale.

Condition: excellent (used), mileage: 275,977 km, power: 630 kW (856.56 HP), first registration: 06/2021, fuel type: diesel, fuel: diesel, fuel tank capacity: 1,000 l, brakes: retarder, color: green, driver cabin: sleeper cab, gearing type: automatic, emission class: euro6, total length: 8,120 mm, total width: 2,550 mm, total height: 3,940 mm, Year of construction: 2021, Equipment: AdBlue, retarder, = Additional options and accessories = - Intarder - Tilting hydraulics - PTO = Further information = Transmission: VIAB TURBO RETARDER CLUTCH, automatic Number of cylinders: 6 Engine displacement: 15,569 cc Unladen weight: 13,520 kg Payload: 166,480 kg GVWR: 180,000 kg Technical condition: very good Optical condition: very good MERCEDES-BENZ AROCS 4163 8x4 SLT TITAN HEAVY-DUTY TRACTOR – 630 hp – UP TO 180 TONS GROSS VEHICLE WEIGHT A very powerful and extensively equipped Mercedes-Benz Arocs 4163 8x4 SLT Titan heavy-duty tractor, designed for the most demanding heavy-haul operations. Equipped with the proven 630 hp Mercedes-Benz engine, the powerful Turbo Retarder Clutch (TRC) and an impressive push & pull capacity of up to 180,000 kg. Thanks to the robust 8x4 drive, air suspension and the complete hydraulic system, this Titan is optimally suited for heavy and special transport. Technical data Mercedes-Benz Arocs 4163 SLT Titan Euro 6 L-Package Engine power: 630 hp Drive: 8x4 Wheelbase: 3,900 mm Automatic transmission Air-suspended chassis Differential locks Adjustable fifth-wheel coupling Trailer coupling Hydraulic system for heavy-duty semi-trailers Large fuel tank behind the cab Turbo Retarder Clutch (TRC / Torque Converter Clutch) Retarder Additional cooling system for the Turbo Retarder Clutch Push & pull capacity up to 180,000 kg Equipment Additional oil and air connections at the front and rear Numerous large toolboxes Comfort cab with full equipment Air conditioning Refrigerator Camera system Laedpfjzfv Skjx Amroc Extensive heavy-duty equipment This Mercedes-Benz Titan heavy-duty tractor combines maximum pulling power, highest reliability and first-class driver comfort. An excellent choice for companies in the heavy-haul sector looking for a ready-to-use and powerful tractor. For further information or to arrange a viewing appointment, please do not hesitate to contact us. Follow us on Instagram: @geurtstrucks We speak German We speak English Hablamos Español

Condition: excellent (used), mileage: 292,793 km, power: 630 kW (856.56 HP), first registration: 06/2021, fuel type: diesel, fuel: diesel, fuel tank capacity: 1,000 l, brakes: retarder, color: green, driver cabin: sleeper cab, gearing type: automatic, emission class: euro6, total length: 8,120 mm, total width: 2,550 mm, total height: 3,940 mm, Year of construction: 2021, Equipment: AdBlue, retarder, = Additional Options and Accessories = - Intarder - Tilting hydraulics - PTO = Additional Information = Transmission: VIAB TURBO RETARDER CLUTCH, automatic Number of cylinders: 6 Engine displacement: 15,569 cc Unladen weight: 13,520 kg Payload: 166,480 kg GVW: 180,000 kg Technical condition: very good Optical condition: very good MERCEDES-BENZ AROCS 4163 8x4 SLT TITAN HEAVY-DUTY TRACTOR – 630 HP – UP TO 180 TONS GROSS VEHICLE WEIGHT A very powerful and extensively equipped Mercedes-Benz Arocs 4163 8x4 SLT Titan heavy-duty tractor, designed for the most demanding heavy-haul operations. Equipped with the proven 630 HP Mercedes-Benz engine, the powerful Turbo Retarder Clutch (TRC) and an impressive push and pull capacity of up to 180,000 kg. Thanks to the robust 8x4 drive, air suspension and the complete hydraulic system, this Titan is ideally suited for heavy and special transport. Technical data Mercedes-Benz Arocs 4163 SLT Titan Euro 6 L-Package Engine power: 630 HP Drive: 8x4 Wheelbase: 3,900 mm Automatic transmission Air-suspended chassis Differential locks Adjustable fifth wheel coupling Trailer coupling Hydraulic system for heavy-duty trailers Large fuel tank behind the cab Turbo Retarder Clutch (TRC / Torque Converter Clutch) Retarder Additional cooling system for the Turbo Retarder Clutch Push & Pull capacity up to 180,000 kg Equipment Additional oil and air connections at the front and rear Numerous large toolboxes Comfort cab with full equipment Air conditioning Refrigerator Camera system Extensive heavy-duty equipment This Mercedes-Benz Titan heavy-duty tractor combines maximum pulling power, the highest reliability and first-class driver comfort. An excellent choice for companies in the heavy-haul sector looking for a ready-to-use and powerful tractor. For further information or to arrange a viewing appointment, please do not hesitate to contact us. Follow us on Instagram: @geurtstrucks Lajdpfx Amjzfv Sdsroc We speak German We speak English Hablamos Español

Condition: excellent (used), BINDER MK 53 E2 Cold-Hot Test Chamber / Temperature Test Cabinet Manufacturer: BINDER Type: MK 53 E2 Temperature range: -40 °C to +180 °C Test chamber volume: 53 liters Internal dimensions (W x H x D): 402 x 402 x 330 mm External dimensions (W x H x D): 740 x 1222 x 740 mm Heating rate: approx. 5.2 K/min Cooling rate: approx. 5.0 K/min Electrical connection: 230 V / 50 Hz Rated power: 2.60 kW Rated current: 11.3 A Protection class: IP20 Refrigerant: R404A Refrigerant charge: 0.60 kg Weight: approx. 159 kg Equipment: MB1 screen-based program controller RS422 interface Viewing window with internal lighting 2 stainless steel inserts Temperature limiter, class 2 Cable entry Ø 80 mm Lasdjzcxwlopfx Amroc Programmable dew protection Condition: used Scope of delivery: see images (Subject to changes and errors in the technical data)

Condition: excellent (used), CTS Temperature Test Chamber T-40/25 Technical Data Manufacturer: CTS Clima Temperatur Systeme Type: T-40/25 Temperature Range: -40 °C to +180 °C Test Chamber Volume: 25 liters Temperature Change Rate: Heating: 8.0 K/min Cooling: 6.5 K/min Temperature Deviation over Time: ±0.5 to ±1 K Test Chamber Dimensions (W x D x H): 350 x 240 x 300 mm External Dimensions (W x D x H): Lasdpfezcxmtsx Amrec 595 x 580 x 860 mm Electrical Data: Rated Voltage: 230 V 1/N 50 Hz Rated Power: 1.86 kW Rated Current: 8.53 A Protection Class: IP20 Refrigerant: R404A Filling Quantity: 0.8 kg Operating Pressure: 25 bar Test Pressure: 20 bar Features: LCD control panel Digital setpoint/actual value display RS232 interface Stainless steel test chamber material 1.4301 Window 200 x 200 mm Lockable door Air-cooled refrigeration unit EASYLog data logger 3 stainless steel shelves Weight: approx. 90 kg For the safety of our customers, the following work will be carried out on the offered climate chambers in advance: 1. Functional check and replacement of necessary components 2. Refilling with legally compliant refrigerant, if necessary 3. Leak test with certificate 4. Documented test run after successful inspection Condition: used Scope of supply: (See picture) Inspection possible by appointment. Loading can be arranged. (Changes and errors in the technical data are subject to change!) We will be happy to answer any further questions you may have by telephone.

Condition: excellent (used), Year of construction: 2008, MESPACK type H-180-FE powdered sugar bagging machine Year 2008 Filling in 2 stages 1 filler fills half, 2 filler fills other half Capacity: 50 bags per minute. Cartoning machine OTOR SYSTEMS type FCR 214 Capacity: 5 cartons of 10 bags per minute Year 2011 Lajdpfx Aotn Raremrsc

Condition: used, mileage: 8,500 km, power: 132 kW (179.47 HP), first registration: 02/2026, fuel type: diesel, overall weight: 3,100 kg, next inspection (TÜV): 06/2028, color: grey, gearing type: automatic, emission class: euro6, number of seats: 3, Year of construction: 2026, Equipment: ABS, air conditioning, central locking, electronic stability program (ESP), parking heater, Special equipment: Trailer hitch, removable without tools Webasto auxiliary heater, remote control Reinforced LED cargo area lighting LED headlights, LED daytime running lights STYLE PACK Partition wall, glazed and insulated Spare wheel Double passenger seat including Moduwork Laodozf T Eujpfx Amroc Rear doors, opening 180°, glazed, with windshield wipers CITY PACK Sliding door on the right and left, manual COMFORT PACK 17-inch alloy wheels with summer tires Additional equipment: Airbag on passenger side can be deactivated, airbag on driver/passenger side, audio controls on the steering wheel, double passenger seat, on-board computer, Drive-Assist package, parking assistance system rear, body/superstructure: van, steering column (steering wheel) adjustable, engine 2.0 L - 132 kW Blue-HDI FAP, Peugeot Connect-Box / SOS button (emergency call for vehicle localization), wheelbase 3275 mm, low emissions according to exhaust standard Euro 6d, sliding door on the right, SCR system (AdBlue technology), seat cover/upholstery: fabric Curitiba, start/stop system, socket (12V connection) in the cargo area, rain sensor Errors, changes and sales subject to prior sale. The information on the equipment in this advertisement does not constitute a guaranteed characteristic in the legal sense and serves only for general information purposes. Binding equipment features are exclusively subject to the purchase contract.

Condition: used, Stephan MCH D 180 Microcutter This high-performance continuous microcutter from Stephan is a versatile emulsifying machine widely used in the food industry. It is ideally suited for the meat, pet food, baby food, convenience food, plant-based (vegan), vegetable, and fruit processing industries. The continuous cutter processes large quantities of product at high speed into a homogeneous mass while simultaneously ensuring effective mixing of ingredients. The cutting size can be adjusted using interchangeable cutting rings, allowing the production of both fine and coarse emulsions. This microcutter is equipped with a large 200-liter feed hopper positioned at a convenient working height, enabling direct product transfer from a bowl cutter. The emulsifier is mounted on wheels for easy mobility within the production area. The machine is constructed entirely from stainless steel. Specifications: Lasdpfx Aszdqi Usmrjc - Production capacity: Up to 6,000 kg/h (depending on product type, particle size, and feed rate) - Hopper capacity: 200 L - Equipped with a double cutting system - Supplied with cutting rings: 0.7 mm and 0.5 mm - Hopper infeed height: 910 mm - Power supply: 400 V (3-phase + Neutral, 50 Hz) - Power rating: 75 kW - Weight: 977 kg - Year of manufacture: 2007 Machine Dimensions (W × D × H): 2220 × 1120 × 1060 mm

Condition: used, mileage: 579,948 km, power: 132.39 kW (180.00 HP), fuel type: diesel, gearing type: mechanical, axle configuration: 4x2, first registration: 11/2006, loading space length: 7,400 mm, loading space width: 2,480 mm, loading space height: 2,400 mm, emission class: euro3, color: white, driver cabin: day cab, tire size: 265/70 R 19.5, Year of construction: 2006, Equipment: tail-lift, rabbatable tailgate Lajdpfx Amovb Hqmjroc

Year of construction: 2013, operating hours: 42,681 h, condition: ready for operation (used), controller manufacturer: KRAUSS MAFFEI, controller model: MC5, Hydraulic injection moulding machine manufactured in 2013. This Krauss Maffei 35-180 CX features a plasticising size of 180 and a screw diameter of 28 mm. With 3 units available, consider the opportunity to buy this Krauss Maffei 35-180 CX hydraulic injection moulding machine. Contact us for further details. • Plasticising Size: 180 Laodjym Uv Sopfx Amrec • Plasticising Arrangement: H • Screw Diameter: 28 mm • Nozzle Radius: 10 mm • Nozzle Bore: 4 mm • 3 units available

Condition: excellent (used), CTS Climate Testing Chamber C-70/600 Device Data Manufacturer: CTS GmbH Type: C-70/600 Model: Climate Testing Chamber Cooling: Air-cooled Description Used climate testing chamber from CTS. Suitable for temperature and climate testing. Application in research, development, and quality assurance. Operating Status Display: Manual operation / Stop. Temperature: 16.59 °C (Actual) / 5.00 °C (Set). Humidity: 39.7 % RH. Water supply: 11.0 l. Technical Data Temperature range: -70 °C to +180 °C Humidity range: 10 % to 98 % RH Dew point range: -10 °C to +94 °C Test chamber volume: 600 liters Electrical Data 400 V / 3/N / 50 Hz Power: 8.7 kW Current: 14.8 A Protection class: IP 22 Refrigeration System Refrigerant: R404A / R23 Cascade refrigeration system Low-temperature operation down to -70 °C PS: 25 bar PT: 27.5 bar Equipment Observation window Lasdpfx Aey H H D Ajmrec Stainless steel test chamber Digital setpoint/actual value display Test item protection / Temperature limiter Water connection (demineralized water) Condensate drain Pipe penetrations RS232 interface Digital outputs Dimensions Internal: approx. 850 x 850 x 830 mm External: approx. 1900 x 1115 x 1850 mm Weight approx. 600 kg Scope of Delivery CTS Climate Testing Chamber C-70/600 Documentation (if available) Functional Test Refrigerant service Leak test Test run with protocol Condition Used. Condition as shown in the pictures. Inspection possible by appointment. Loading and transport can be organized upon request. Subject to change and prior sale. If you have any questions, please do not hesitate to contact us.

Condition: excellent (used), CTS Climate Testing Chamber C-70/600 Device Data Manufacturer: CTS GmbH Type: C-70/600 Design: Climate testing chamber Cooling: Air-cooled Lasdpfx Amoy H Hl Horec Description Used climate testing chamber from CTS. Suitable for temperature and climate tests. Used in industry, research, and quality assurance. Technical Data Temperature range: -70 °C to +180 °C Humidity range: 10 % to 98 % RH Dew point range: -10 °C to +94 °C Test chamber volume: 600 liters Electrical Data 400 V / 3/N / 50 Hz Power: 8.7 kW Current: 14.8 A Protection class: IP 22 Refrigeration System Refrigerant: R404A / R23 Cascade refrigeration system Low-temperature operation down to -70 °C PS: 25 bar PT: 27.5 bar Equipment Observation window Stainless steel test chamber Digital setpoint/actual value display Test item protection / Temperature limiter Water connection (demineralized water) Condensate drain Pipe penetrations RS232 interface Digital outputs Dimensions Internal: approx. 850 x 850 x 830 mm External: approx. 1900 x 1115 x 1850 mm Weight approx. 600 kg Scope of Delivery CTS Climate Testing Chamber C-70/600 Documentation (if available) Service prior to delivery (optional) Functional test Refrigerant service Leakage test Test run with protocol Condition Used. Visual condition, see pictures. Inspection possible by arrangement. Loading and transport can be organized upon request. Subject to changes and prior sale. If you have any questions, please do not hesitate to contact us.

Condition: ready for operation (used), Indramat MAC112D-1-ED-4-C/180-A-0/WI517LV/S011 Permanent Magnet Motor, serial number: MAC112-99152, used, normal signs of wear, 100% functional. Scope of supply as shown in the photos. The agreed sales discounts do not apply to this item. Please request the price separately! ATTENTION: Please enquire separately about the costs for packaging and shipping! Ljdpsi D Iq Djfx Amrjac

Condition: new, Schunk GFS-32-180 universal swivel finger 355520 + accessory kit 5511461, unused, 100% fully functional, delivery as per photos Lodsx Dw Tyspfx Amroac

Condition: ready for operation (used), Heidenhain ERN 180 5000 01-03 encoder. 377 104-96, used, shows normal signs of wear, 100% functional, scope of delivery as shown in the photos. Ledpfx Aji Eah Usmrjac

Condition: ready for operation (used), Indramat MAC117E-0-ES-2-F/180-B-1/S001 permanent magnet motor, mounting hole spacing: 152 x 152 mm, drive shaft diameter: 28 mm, used, with normal signs of wear, 100% functional. ATTENTION: Please request the costs for packaging and shipping separately! Lajdpfx Amoi D Irporoc

Condition: new, Neugart PSFN140-010-SSSD3AH-Z38/80/180/215/B5/M12 planetary gearbox SN: 2185 including motor flange 1FK7103, unused in original packaging, 100% functional, delivery contents as per photos. Lajdpfx Amey Npg Eorjc

Condition: ready for operation (used), Schunk GFS 25-180 universal swivel finger 355510 + INA HK2516-2RS needle bearing, used, good condition, 100% functional, delivery as per photos. Lsdpjx Eucqefx Amrsac

Condition: ready for operation (used), Indramat MAC115A-0-FS-2-C / 180-B-1 / S001 Permanent Magnet Motor, serial number: MAC115-04930, used, shows normal signs of wear, 100% functional, scope of delivery as shown in the photos. Ledoi D Irhepfx Amroac

Condition: new, HEMA RotoClamp RC 180 NA, serial number as shown in the photo, unused in original packaging, 100% functional, scope of delivery as shown in the photos. Laedpfoi Ea Hysx Amroc