Used Studer Internal Grinder Cnc for sale (18,844)

Condition: used, TECHNICAL DETAILS - Distance between tips : 400 [mm] - Tip height : 125 [mm] - Max. workpiece weight between tips : 150 [kg] - Z axis stroke : 600 [mm] - Z axis rapid feed : 15 [m/min] - Table orientation : +/- 6 [°] WHEELHEAD - Grinding wheel dimensions : 500 x 80 x 203.2 [mm] - Peripheral speed : 60 [m/sec] - Power : 9.5 [kW] - Head position : -30 [°] WORKPIECEHEAD - Type of cone : CM5 - Speeds : 5 - 1500 [rpm] - Power : 2.1 [kW] - Bore : 34 [mm] TAILSTOCK - Cone : CM3 - Quill stroke : 80 [mm] POWER SUPPLY Dsdpfx Asuhbx Hoa Iowc - Voltage : 400 [V] - Frequency : 50 [Hz] - Installed power : 16 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 3.650 x 3.050 [mm] - Machine height : 2.000 [mm] - Machine weight : 4.850 [kg] MACHINE HOURS - Number of working hours : 31000 [h] EQUIPMENT - CNC : Siemens 840 D - Remote electronic handwheel - Automatic tailstock - Diameter and length control - Loading/unloading robot - Cooling unit - Coolant tank - Oil mist extractor - Wheel diamond grinding device - 2nd grinding head with CBN wheel and rotary wheel dresser - Fire extinguisher * *NB : working order not guaranteed. To have it checked by a qualified organization of the buyer.

Condition: used, TECHNICAL DETAILS - Distance between tips: 400 [mm] - Tip height: 125 [mm] - max. workpiece weight between tips: 150 [kg] - Z axis stroke : 600 [mm] - Z axis rapid feed : 15 [m/min] - Table orientation : +/- 6 [°] WHEELHEAD - grinding wheel dimensions: 500 x 80 x 203.2 [mm] - peripheral speed: 60 [m/sec] - Power : 9.5 [kW] - head position : -30 [°] Dedpfx Ajuhbxyea Ijwc WORKPIECEHEAD - Type of cone : CM5 - Speeds : 5 - 1500 [rpm] - Power : 2.1 [kW] - Bore : 34 [mm] TAILSTOCK - Cone : CM3 - Quill stroke : 80 [mm] POWER SUPPLY - Voltage: 400 [V] - Frequency: 50 [Hz] - Installed power: 16 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 3.650 x 3.050 [mm] - Machine height : 2.000 [mm] - Machine weight : 4.850 [kg] MACHINE HOURS - Number of working hours : 42000 [h] EQUIPMENT - CNC : Siemens 840 D - Remote electronic handwheel - Automatic tailstock - Diameter and length control - Loading/unloading robot - Cooling unit - Coolant tank - Oil mist extractor - Wheel diamer - 2nd grinding head with CBN wheel and rotary wheel dresser - Fire extinguisher * *NB : working order not guaranteed. To have it checked by a qualified organization of the buyer.

Condition: used, TECHNICAL DETAILS - centers height : 125 [mm] - max grinding length : 430 [mm] - max part diameter : 249 [mm] - max part weight : 100 [kg] - grinding wheel size : Ø400 x 63 x 127 [mm] - part holder headstock spindle speed : 8 - 800 [rpm] - max stroke X, Z : 320 , 650 [mm] - floor space : 2500 x 2000 [mm] - weight : 4700 [kg] EQUIPMENT - CN FANUC 18iTA - tailstock with fine adjustment - grinding head type URS - grinding head orientation each 0.1 degrees - inside grinding device with spindles Ø120 mm FISCHER type MFZ-1090 90000 Rpm and et type MFV-1230 12000-30000 Rpm - various grinding wheel flanges - grinding wheel extractor - 2 diamond dressing devices for inside and external grinding wheels Djdpfx Aasy Tb Aae Ijwc - active flagging device MARPOSS Kel-pos - tool-measuring system Kel-set - Kel set system - 3 jaws chuck

Condition: excellent (used), Year of construction: 1988, Magnet table 1.800 x 450mm, cross travel 580mm. New CNC Fagor 8037M 2018. Paper filter with magnet separator Dwodpfx Ajtqt Idsa Ijc

Condition: used, TECHNICAL DETAILS - Min/max. grindable diameter: 1 - 100 [mm] - Max. length of the workpiece when plunging : 140 [mm] - Min/max work wheel diameter: 440/610 [mm] - Max. working wheel width: 80 [mm] - Peripheral grinding wheel speed: 50 [m/s] - Speed with new work wheel: 1565 [rpm] - Min./max. drive wheel diameter: 220/305 [mm] Dwodpfxjuhb R Ae Aa Isc - Max. width of drive wheel: 67 [mm] - Max. drive wheel inclination: +/- 7 [°] - Drive wheel speed during machining: 0/140 [rpm] - Drive wheel speed in dressing: 200 [rpm] - Total installed power: 41 [kW] - Dimensions : 5920 x 5071 x 2500 [mm] - Net weight: 7000 [kg] EQUIPMENT - CNC SIEMENS 840D control - 5 numerical axis (1 for working grinding wheels facing device, 2 for driving grinding wheels facing device, 1 for upper slide, 1 for lower slide) - working grinding wheels facing device by diamond knurling wheel - driving grinding wheels facing device by diamond center - automatic parts feed bowl - parts conveying strip

Condition: used, TECHNICAL DETAILS - Min/max. grindable diameter: 1 - 100 [mm] - Max. length of the workpiece when plunging : 140 [mm] - Min/max work wheel diameter: 440/610 [mm] - Max. working wheel width: 80 [mm] - Peripheral grinding wheel speed: 50 [m/s] - Speed with new work wheel: 1565 [rpm] - Min./max. drive wheel diameter: 220/305 [mm] - Max. width of drive wheel: 67 [mm] - Max. drive wheel inclination: +/- 7 [°] - Drive wheel speed during machining: 0/140 [rpm] Dwsdpfxjuhb R Ne Aa Isc - Drive wheel speed in dressing: 200 [rpm] - Total installed power: 41 [kW] - Dimensions : 5920 x 5071 x 2500 [mm] - Net weight: 7000 [kg] EQUIPMENT - CNC SIEMENS 840D control - 5 numerical axis (1 for working grinding wheels facing device, 2 for driving grinding wheels facing device, 1 for upper slide, 1 for lower slide) - working grinding wheels facing device by diamond knurling wheel - driving grinding wheels facing device by diamond center - automatic parts feed bowl - parts conveying strip

Condition: used, TECHNICAL DETAILS - Workpiece diameter : 0.5 - 40 [mm] - Max. plunge grinding length : 95 [mm] WORKING GRINDING WHEEL - Grinding wheel width : 100 [mm] - Peripheral speed : 35 [m/s] Dwjdjuhb Rcopfx Aa Iec - Grinding wheel speed : 2228 [rpm] - Minimum wheel diameter : 260 [mm] - Maximum wheel diameter : 406 [mm] REGULATING WHEEL - Grinding wheel width : 100 [mm] - Wheel tilt : +/- 6 [°] - Min. diameter of drive wheel : 150 [mm] - Max. diameter of drive wheel : 205 [mm] SUPPLY - Installed power : 20 [kW] - Supply : 400V, 50 [Hz] DIMENSIONS - Floor dimensions : 4090 x 1640 [mm] - Machine height : 2.100 [mm] - Machine weight : 2.700 [kg] EQUIPMENT - CNC : SIEMENS SINUMERIK 840 D

Condition: used, TECHNICAL DETAILS - Workpiece diameter : 2 - 175 [mm] - Max. plunge grinding length : 240 [mm] WORKING GRINDING WHEEL Dedpfeuhb Riox Aa Iowc - Grinding wheel diameter : 610 [mm] - Grinding wheel width : 250 [mm] - Peripheral speed : 50 [m/s] - Grinding wheel speed : 1873 [rpm] REGULATING WHEEL - Grinding wheel width : 250 [mm] - Grinding wheel tilt : +/- 7 [°] SUPPLY - Installed power : 30 [kW] - Supply : 400V, 50 [Hz] DIMENSIONS - Floor dimensions : 3600 x 4700 [mm] - Machine height : 2400 [mm] - Machine weight : 7700 [kg] EQUIPMENT - CNC : SIEMENS SINUMERIK 840 D - Hydraulic balancing device SHS - Feeding device GFA - Suction device

Condition: ready for operation (used), Workpiece diameter with/without steady rest: 400mm/250mm, max. workpiece length: 750mm, spindle head load: 400kg, max. internal grinding diameter: 350mm, max. grinding depth: 500mm, travel X/Z: 300mm/1000mm, max. traverse speed: 15m/min, control system: Siemens Sinumerik. Documentation available. On-site inspection is possible. Dedpfx Aaex Uq T Dj Iswc

Condition: reconditioned (used), KELLENBERGER KEL-VISTA UR 175X600 is a CNC cylindrical grinder engineered for precision, high accuracy and reliability. Capacity: centre height 175 mm; between centres 800 mm; grinding length 600 mm; max Ø 349 mm; max weight 100 kg. Key specs: Z 750 mm; X 320 mm; left wheel Ø400×80×127, right Ø300×40×127; wheel speeds 875–1900 rpm (stepless); wheel motor 5 kW; work spindle 8–800 rpm (stepless), taper 5 CM; rapid 12 m/min; air 6 bar; 3×400 V 50 Hz; machine ≈3000 kg; 3200×1700×2000 mm. Accessories: coolant, coolant-through-spindle (IKZ), paper filter, MARPOSS probe, MOVOMATIC measuring control, internal grinding attachment, balancing, RS‑232. Suited for tight tolerances in automotive, watchmaking, machine tools, aerospace, medical. Dwedpfxsyxn Iyj Aa Isc

Condition: used, KELLENBERGER KEL-VARIA R175 x 1500 is a CNC cylindrical grinder engineered for high precision, top accuracy and reliable production. Capacities: centre height 175 mm, distance between centres 1500 mm, Z-axis 1650 mm, workpiece weight on centres max. 150 kg; grinding wheel Ø500×80 mm (bore 203 mm) or Ø400×63 mm (bore 127 mm); max wheel travel 320 mm. Key specs: wheel speeds stepless 1000–2150 rpm (peripheral speed 45 m/s); feed 7500 mm/min; work spindle swivels -10/+100° with 8–800 rpm; permitted load 160 Nm; grinding spindle motor 7.5 kW; work spindle motor 2 kW; 3×400 V 50 Hz; rapid 15 m/min; approx. weight 6000 kg; dimensions 4700×2300×2000 mm; air 6 bar. Accessories: coolant system, paper filtration, MARPOSS touch probe, set of grinding wheels, rotary centre, set of centers, set of workpiece drivers, set of throat gauges, lamp, 2 tool cabinets, tailstock with fine adjustment, oil mist extractor, spindle nose for collets. Achieves tight tolerances; typical applications: automotive, watchmaking, machine tool Djdpfoyxn Itox Aa Iowc

Condition: used, TECHNICAL DETAILS - Workpiece diameter : 0.5 - 40 [mm] - Max. plunge grinding length : 95 [mm] WORKING GRINDING WHEEL - Grinding wheel diameter : 350 [mm] - Grinding wheel width : 120 [mm] - Peripheral speed : 50 [m/s] - Grinding wheel speed : 2352 [rpm] - Minimum wheel diameter : 260 [mm] - Maximum wheel diameter : 406 [mm] REGULATING WHEEL - Grinding wheel width : 120 [mm] - Wheel tilt : +/- 6 [°] - Min. diameter of drive wheel : 150 [mm] - Maximum diameter of drive wheel : 205 [mm] SUPPLY Dedpfx Asuhb Rpja Iewc - Installed power : 21 [kW] - Supply : 400V, 50 [Hz] DIMENSIONS - Floor dimensions : 3965 x 3103 [mm] - Machine height : 2.100 [mm] - Machine weight : 2.800 [kg] EQUIPMENT - CNC : SIEMENS SINUMERIK 840 D

Condition: used, TECHNICAL DETAILS - Disc : 2x - Connection : 50 Hz 3x400 V - Machine weight : 3200 [kg] - Number of hours under power : 99 287 [h] - Wheel diameter : 700 [mm] - Wheel height : 200 [mm] - Max. height of the workpiece : 100 [mm] EQUIPMENT - Aspiration : 1 - Coolant tank : 1 - Hydraulic unit : 1 Dwjdpfsw Ulnbox Aa Ioc - Tooling : 1 - Retention plate : 1

Condition: used, TECHNICAL DETAILS - Disc : 2x - Connection : 50 Hz 3x400 V - Machine weight : 3200 [kg] - Number of hours under power : 94 787 [h] Dwjdpfsw Ulnhox Aa Ijc - Wheel diameter : 700 [mm] - Wheel height : 200 [mm] - Max. height of the workpiece : 100 [mm]

Condition: used, TECHNICAL DETAILS - Workpiece diameter : 1 - 80 [mm] - Max. plunge grinding length : 140 [mm] WORKING GRINDING WHEEL - Minimum wheel diameter : 360 [mm] - Maximum wheel diameter : 508 [mm] - Grinding wheel width : 200 [mm] - Peripheral speed : 45 [m/s] - Grinding wheel speed : 1900 [rpm] REGULATING WHEEL - Grinding wheel width : 40 [mm] - Wheel tilt : +/- 7 [°] - Minimum diameter of drive wheel : 220 [mm] - Maximum diameter of drive wheel : 305 [mm] SUPPLY - Installed power : 30 [kW] - Supply : 400V, 50 [Hz] Dsdpfx Aexz Hrmja Iowc DIMENSIONS - Floor dimensions : 6000 x 4200 [mm] - Machine height : 3000 [mm] - Machine weight : 3100 [kg] EQUIPMENT - CNC SIEMENS SINUMERIK 840 D - Double slides for the plunge grinding wheel - Automatic loading through vibrating bowl

Condition: refurbished (used), Year of construction: 2006, functionality: fully functional, machine/vehicle number: 119/020.0895, Manufacturing origin CH Voltage 400 V Netweight 4500 kg Custom position 8460.2320 Dimensions 2700x2350x2100 mm TECHNICAL DATA Control Fanuc 16i-T Center height 175 mm Distance between centers 1000 mm LINEAR AXES Grinding length 500 mm Strokes X : 267 mm Z : 650 mm WHEEL HEADSTOCK Continuous orientation +/- 8.5°. Dwodpfx Aaslbgfcj Ijc External grinding wheel size 500x80x203 mm Power 7.5 kW Speed 44 m/sec. WORKPIECE HEADSTOCK Taper type MT5 C-axis +/- 5 Power 1 kW Speed 30-1000 min-1 TAILSTOCK Taper type MT3 Sleeve stroke 35 mm Sleeve diameter Ø 50 mm Max. workpiece weight 130 kg POWER SUPPLY Voltage 400V 50 Hz errors and omissions excepted-data given without obligation Fully overhauled: Mechanics, geometry, hydraulics and electrical parts checked and/or replaced. Grinding headstock Disassembly, cleaning of parts, replacement of worn and defective parts, overhaul of motor, replacement of bearings, replacement of belts, disassembly of spindle, replacement of seals and O-Rings + adjustment. New paintwork. Headstock Dismantle, clean parts, replace worn and faulty parts, overhaul motor, replace belts. New spindle bearings. New paintwork. Tailstock Dismantled, checked and overhauled. Hydraulics Dismantle, check motor, replace hoses, defective and worn parts. Check hydraulic block X-axis Dismantle, replace worn parts such as O-Rings, seals, rings etc., overhaul hydraulic piston, grind tables. Z axis Dismantle, grind tables, replace worn and defective parts, overhaul hydraulic piston, new paintwork. Electrical cabinet Complete check, change various relays. Painting Colors: White RAL 9003 and gray RAL 7011 Geometry according to manufacturer's protocol. Inspection and cleaning of various accessories

Condition: good (used), CNC grinder Dwodpfxevviamj Aa Isc 3 grinding units on each side

Condition: like new (used), functionality: fully functional, Year of construction: 2012, laser source manufacturer: Rofin, laser power: 200 W, overall weight: 1,000 kg, total length: 2,300 mm, total width: 770 mm, total height: 1,800 mm, Equipment: CE marking, documentation/manual, StarCut Tube Precision CNC cutting for tubes and flat parts Precision cutting for tubes and flat materials From catheter shafts to stents, hypotubes, and more A highly stable cutting platform – the SL uses a mineral cast base – delivers contour cutting accuracy better than ±5 µm. The machine was manufactured in 2012 but never used in production. It was only checked to ensure that everything was functioning correctly. Weight (kg) 1000 Length (m) 2.3 Height (m) 1.8 Depth (m) 0.77 Other dimensions Pallet not included in the dimensions We can assist with delivery to any location. The machine is in very good technical condition. The machine can be inspected and tested in Poland at the following address: 33-350 Piwniczna Zdrój, Poland. Dwedpfx Aajzt A H Re Ioc

Condition: used, Year of construction: 2022, Studer Favorit 650 CNC Universal Cylindrical Grinding Machine with Fanuc Oi-TD CNC Control, S/No. 1042-0727 (2022), Distance between Centres 650mm, Centre Height 175mm, X Travel 285mm, Z Travel 800mm, Z Travel 800mm, External Grinding Swivel Range -15 deg to + 195 deg, 500mm Diameter Grinding Wheel, MKS Universal Work Head, MK4 Tailstock, Coolant Filter System, FMN-V12 Extraction System. 4,200kg. Country of Origin: Switzerland Dedpfx Aajz Arnpo Ijwc Location: These lots are located in Biggleswade, UK. Unfortunately, there are no loading facilities on-site, dismantling and loading will be at the cost of the purchaser.

Condition: like new (used), ELB SMART BD10 STC is a CNC surface/profile grinder engineered for high precision, accuracy and reliability. Capacities: table 1360×590 mm, X1100 Z670 Y400 mm, grinding 1000×600 mm, table load 1000 kg. Specs: wheel Ø400×100 mm (bore127), 1450 rpm, spindle 10 kW, table 2–30 m/min stepless, feeds up to 2000/1500 mm/min, vertical rapid 1 m/min, 3×400V 50Hz, total 30 kW; machine ~6900 kg; dims 3550×2410×2660 mm. Accessories: coolant, paper filtration, oil‑mist extractor, magnetic plate 800×600, redressing/profile roll devices, wheel/flange sets, electronic handwheel. Achieves tight tolerances; suited to automotive, aerospace, toolmaking, medical, watchmaking. Dwodpfx Aoyxn N Doa Iec

Condition: new, Year of construction: 2026, Working area: X - 2100mm, Y - 3000mm Z axis clearance: 300mm Worktable type: hybrid, i.e. vacuum + mechanical rails Dedezr D Nwepfx Aa Iswc Number of vacuum sections: 6 Maximum working speed in slow motion: up to 40m/min Maximum Working speed: up to 25m/min Program resolution: 0.01mm Mechanical resolution: 0.04mm 9kW electrospindle, 24,000 rpm with full ceramic bearings Becker VTLF 2.250 vacuum pump Drive: Full Leadshine AC servo drives with 1500W power and high holding torque (double on the Y axis) Drive transmission: High-precision NIDEC SHIMPO planetary reducers Drive system: 30mm PMI linear guides and carriages with helical inclined strips with maximum contact area Guide lubrication system: Automatic Tool length measurement system: Automatic Control system: NK-105 G3 controller Standard CAD/CAM software: Artcam Open 2016 Optional CAD/CAM software: Vectric Cut 2D PRO (Ramp access function, automatic nesting) - additional cost PLN 2,000 net Power supply: 3PH, 400V, 50-60Hz Fire-rated wiring, bendable and protected against deformation Machine dimensions: 4835 x 2900 x 2205mm

Condition: good (used), Max. Roll dia: 1000 mm Max. Roll Length: 5260 mm Max. Roll weight: 16 Tonnes Dwodpfx Aasq Dmkwj Ioc Control: Siemens 810

Condition: new, Spare parts category: safety mat for CNC Allen Bradley Lignum 1600x 800 Brand: safety mat for CNC Allen Bradley Lignum 1600x 800 Model: safety mat for CNC Allen Bradley Lignum 1600x 800 Description: safety mat for CNC Allen Bradley Lignum 1600x 800 Allen Bradley Lignum CNC safety mat new, thickness: [value missing] series: 440-F, range: MatGuard, length: 1.5m, width: 1m, thickness: 16mm, Plastisol vinyl, IP67 Allen Bradley protective mat, length 1.5 m, width 1 m - 440F-M2030BYNN The Allen Bradley series MatGuard safety mat from Rockwell Automation is a safety device that detects human presence in hazardous areas. It can be connected to the control circuits of industrial machinery in hazardous environments, creating a protected area of 1.5 m (length) x 1 m (width). When the mat's detection surface senses a person, it sends a signal that shuts down the machine, preventing injury and increasing workplace safety. The durable vinyl material is resistant to bleach, acids, and other industrial chemicals, making it a suitable choice for use in demanding industrial settings. This mat is commonly used to restrict access to hazardous areas in factories. Features and advantages: • Hardened sheet steel construction increases durability. • 4-wire open and short-circuit detection system for enhanced electrical safety. • Can withstand a high static pressure of 4,500 psi (pounds per square inch) for use in heavy-duty applications. Standards and certifications: • CSA (Canadian Standards Association) • ISO13849-1 (International Organization for Standardization) • IEC/EN60204-1 (International Electrotechnical Commission) • TÜV (Technischer Überwachungsverein) Is this mat safe to use in damp or wet areas? IP67 rating CE certified TUV certified CSA certified cULus approved EN1760-1 EN954-1 ISO 13849-1 IEC/EN60204-1 ANSI RIA R15.06 ANSI/B11.19 AS4024.5 The mat is rated IP67 (ingress protection), meaning it is protected against dust and can be water-resistant for up to 30 minutes. This makes it safe for use in humid environments. Technical specifications: Attribute Parameter MatGuard Range 440-F series Protected area 1500 x 1000mm Length 1.5m Width 1m Dedpfxez Eggvj Aa Iowc Thickness 16mm Mat material Plastisol vinyl IP rating IP67 Year: 2023

Condition: excellent (used), Year of construction: 2023, functionality: fully functional, type of input current: three-phase, input voltage: 380 V, working width: 1,800 mm, cutting height (max.): 30 mm, compressed air connection: 10 bar, An exceptional opportunity to acquire a fully integrated, high-performance automated multi-ply CNC cutting solution. Commissioned in August 2023 and kept in excellent condition, this complete VetiGraph / Serkon Makina setup is available for immediate purchase. Full UK delivery, professional decommissioning, transport, and complete onsite re-commissioning are all included to get your facility running quickly and smoothly. Get a complete factory upgrade at a fraction of the cost of new equipment. Package includes: * Serkon MC30 Multi-Ply CNC Cutter: 30mm compressed cutting height, 180cm width, continuous conveyor, drill and vortex knife cooling. * MN1 Fabric Spreader & ML2 Roll Lift: Automatic tension-free laying with a 9m x 2m air-flotation table. * Complete CAD/CAM Suite: Includes VetiGraph Pattern Design, Automated Marker Nesting, and FastJet Twin-Head Plotter. * iDigit Photo Digitiser: Quickly converts physical patterns to vector files. Full Turnkey Package: Includes UK delivery, complete installation, fully setup commissioning, 7 days of total onsite training, and a 6-month warranty. Avoid long manufacturer lead times and substantial capital outlay. This complete system is ready for immediate inspection in Preston and fast deployment to your facility. Delivery & Installation: * For deliveries outside the UK, the machine is supplied on an Ex Works (EXW) basis. The buyer is responsible for arranging and covering the cost of international transport, import duties, taxes and any local delivery charges. * Installation and commissioning can be provided by our engineers at an additional cost. For overseas installations, additional charges will apply to cover engineer travel, accommodation and associated expenses. * Please contact us for a quotation for installation and commissioning to your location. Dwedpfez A D Rysx Aa Ijc

Condition: used, KELLENBERGER KEL‑VARIA R175 x 1500 is a CNC cylindrical grinder engineered for precision, high accuracy and reliable operation. Capacity: centre height 175 mm, distance between centres 1500 mm, Z 1650 mm, max 150 kg; wheels Ø500×80 mm (Ø400×63 mm option). Specs: wheel speeds 1000–2150 rpm, peripheral 45 m/s, max travel 320 mm, feed 7500 mm/min, motors 7.5/2 kW, rapid 15 m/min, 3×400 V, weight ≈6000 kg, dims 4700×2300×2000 mm. Equipment: paper/coolant filtration, MOVOMATIC, Renishaw LP2H probe, wheel flange extractor, remote hand control, MPM balancing. Achieves tight tolerances; suited to automotive, watchmaking, machine tools, aerospace and medical. Dwsdpfx Asyxn A Roa Iec