Used Emco Mc 90 for sale (142)

Condition: excellent (used), EMCO Model E 900 Ndjdpfjpgng Hjx Aa Ijc Control type SIEMENS SINUMERIK 810 D Table dimensions 1000 x 520 mm Linear guides ✓ Travel X-axis 900 mm Y-axis travel 500 mm Travel Z-axis 500 mm Axes 3 Spindle speed 12,000 rpm Spindle mounting ISO 40 - DIN 69871 Tool magazine 20 places Coolant supply through the spindle ✓ Spindle motor power 13 kw Year 2017 CE machine ✓ Overall dimensions 2570 x 2445 x H 2920 mm

Condition: ready for operation (used), Year of construction: 2014, Control Unit Brand SIEMENS Model 828 D Main Drive Ndodpfx Aaewn N Iyj Isc Spindle speed range 50-12000 Number of axis 3 Movement X-Axis Movement 900 mm X-Axis Rapid Traverse 24 m/min Y-Axis Movement 500 mm Y-Axis Rapid Traverse 24 m/min Z-Axis Movement 500 mm Z-Axis Rapid Traverse 24 m/min Table Outer length 1000 mm Outer width 520 mm Min distance between vertical spindle and table 100 mm Max distance between vertical spindle and table 600 mm Table load 800 kg Tools Slots in storage 20 Media Chip conveyor Yes Additional Equipment Rinsing gun Cooling medium tray 360l IKZ 15 bar This 3-axis EMCO EmcoMill E900 was manufactured in 2014. A vertical machining center featuring a Siemens 828D control, it offers a spindle speed up to 12,000 rpm and torque of 83 Nm. It has a travel distance of X 900mm, Y 500mm, Z 500mm, and a rapid traverse rate of 24m/min. The machine includes a chip conveyor, a 360l cooling medium tray, and a 20-tool magazine. If you are looking to get high-quality milling capabilities consider the EMCO EmcoMill E900 machine we have for sale. Contact us for more information. Application Types Milling

Condition: refurbished (used), Year of construction: 2005, functionality: fully functional, turning length: 1,500 mm, turning diameter: 520 mm, spindle speed (max.): 3,200 rpm, travel distance X-axis: 280 mm, travel distance Z-axis: 1,055 mm, workpiece weight (max.): 1,200 kg, TECHNICAL DETAILS Swing over bed: 700 mm Max. turning diameter: 520 mm Spindle pitch: 1,500 mm Nedpfxsv Hqntj Aa Iodc Travel X1: 280 mm Travel Z1: 1,055 mm Travel Z2: 1,090 mm Control system: Siemens Sinumerik 840D Main spindle Spindle head: DIN 55026 A2-8 Clearance through the drawbar: 95 mm Inner diameter of front bearing: 160 mm Inner diameter of rear bearing: 150 mm Clamping cylinder diameter: 315 mm Speed: 750–3,200 rpm Power (S1/S6 40%): 37/54 kW Max. torque (S1/S6 40%): 470/687 Nm Max. workpiece weight in the chuck: 400 kg Center of gravity distance from chuck: 175 mm Max. workpiece weight between chuck and tailstock: 1,200 kg Counter spindle Spindle head: DIN 55026 A2-8 Drawbar clearance: 95 mm Inner diameter of front bearing: 160 mm Inner diameter of rear bearing: 150 mm Clamping cylinder diameter: 315 mm Speed: 500–3,200 rpm Power (S1/S6 40%): 17/25 kW Max. torque (S1/S6 40%): 324/478 Nm Tailstock Travel: 1,050 mm Min./Max. distance between spindle and tailstock: 320–1,370 mm Min./Max. Feed force: 50–2,000 daN Quill taper: MT 5 Feed rates Rapid traverse X1-X2-Z1-Z2 and counter spindle: 30 m/min Ball screw X1-X2, pitch: 40 x 20 mm Ball screw Z1-Z2, pitch: 50 x 20 mm Ball screw counter spindle, pitch: 50 x 20 mm Feed force X1-X2: 1,640 daN Feed force Z1-Z2: 1,640 daN Feed force counter spindle: 1,640 daN General overhaul and maintenance - Replacement of the X-axis ball screw (upper turret): 2011 - Replacement of the clamping cylinder (spindle no. 1): approx. 2018 - Bearings replaced on both spindles: 2011 - Overhaul of both turrets: ongoing EQUIPMENT - Counter spindle - 2 turrets with driven tools - Y-axis of the upper turret: starting at 50 mm - Driven tools: 2 straight + 2 angled - Holders: 2 in-hole + 2 on the surface - Clamping jaws: 2 hard base jaws - Complete machine documentation - Replacement turret (after complete overhaul)

Year of construction: 2019, condition: ready for operation (used), General Data Machine weight 1500 kg Ndedpfxexp Snce Aa Isc Control Unit Brand SIEMENS Model Sinumerik 828D Main Drive Spindle speed range 50–4000 Number of axis 2 This EMCO Emcomat E-200 MC was manufactured in 2019. A robust horizontal turning machine featuring a distance between centers of 1000 mm, center height of 200 mm, and a spindle speed range of 50-4000 rpm. It includes a tailstock and ball screws on X and Z axes. Weighing 1500 kg, this demo machine is in excellent condition, like new. Contact us for more information about this machine. Application Types Turning

Condition: repair required (used), Year of construction: 2010, functionality: not functional, machine/vehicle number: M-075.068.10, feed length X-axis: 750 mm, feed length Y-axis: 500 mm, feed length Z-axis: 640 mm, spindle speed (max.): 12,000 rpm, spindle speed (min.): 50 rpm, table width: 520 mm, table length: 900 mm, CNC milling machine Emco MC 75/50 Machine No.: M-075.068.10 Year of manufacture: 2010 Ndsdpfsxn Hy Rjx Aa Isc including 30 tool holders SK40 with pull studs including 4th rotary axis including vises including numerous tools and holders including coolant concentrate ATTENTION: Machine is being sold as in need of repair. Machine control is defective: Heidenhain MC420 including documentation and operating manual sold without warranty or guarantee

Condition: used, Year of construction: 2003, Emco lathe enco Turn 420 MC with bar loader condition see pictures Nedpfxeunzgrs Aa Iodc

Condition: ready for operation (used), EMCO TURN 332MC. Year of manufacture: 2005. Includes - LM 1200. Accessories included. Ndodpfsxgumiex Aa Ijc

Condition: used, Year of construction: 2013, controller manufacturer: Siemens, controller model: 840Dsl, _____ Description: Year of manuf. : 2013 Control : Siemens 840Dsl Turning diam. : 430 mm Turning length : 744 mm Mainspindle: Technology:Motorspindle Speed:5.000 rpm Nedpfxsw Tg Adj Aa Iedc Power (max.):29 kW Torque (max.):250 Nm Barcapacity:65 mm Workpiececlamping:Collet chuck, Hainbuch Spanntop nova Kombi Axzug Gr. 65 Subspindle: Technology:Motorspindle Speed:7.000 rpm Power (max.):22 kW Torque (max.):130 Nm Workpiececlamping:3-Jaw chuck, SMW Autoblok KNCS-N-225-66 Ejector:Pneumatic Movement in Z:750 mm Toolcarrier I (X/Y/Z): Technology:Turret with 12 stations Taper:VDI30 Tooldrive:4.000 rpm, 6,7 kW, 25 Nm Movement in X/Y/Z:270/100/750 mm Eilgang in X/Y/Z:24/10/30 m/min Toolcarrier II (X/Z): Technology:Turret with 12 stations Taper:VDI30 Tooldrive:4.000 rpm, 6,7 kW, 25 Nm Movement in X/Z:205/750 mm Eilgang in X/Z:24/30 m/min Equipment/Accessory: Chipmanagement:Chip conveyor Coolingmanagement:Internal coolant pumps with High-pressure, 14 bar Rawmaterialfeed:Barloader, EMCO LM 1200 Finishedpartremoval:Workpiece unloading device (pneumatic) with conveyor belt Oilmistseparation:Mechanical extraction, Absolent Toolholder:Misc. static and driven toolholder Further Accessory:Spindlechiller

Condition: as good as new (ex-display), Year of construction: 2019, operating hours: 40 h, functionality: fully functional, feed length X-axis: 450 mm, feed length Y-axis: 350 mm, feed length Z-axis: 400 mm, spindle speed (max.): 5,000 rpm, quill travel distance: 80 mm, rapid traverse X-axis: 5 m/min, rapid traverse Y-axis: 5 m/min, rapid traverse Z-axis: 5 m/min, total height: 1,990 mm, total width: 2,030 mm, total length: 1,980 mm, table width: 270 mm, table length: 400 mm, type of input current: three-phase, rotational speed (max.): 5,000 rpm, rotational speed (min.): 10 rpm, table load: 450 kg, overall weight: 2,270 kg, input voltage: 400 V, workpiece weight (max.): 450 kg, warranty duration: 24 months, input current: 16 A, input frequency: 50 Hz, Equipment: CE marking, documentation/manual, rotational speed infinitely variable, Immediately available stock machine from our Trencin (SK) showroom. (Sale reserved.) EMCOMAT FB 450 with Siemens Sinumerik 828D control system. DEMO machine in “AS NEW” condition, available for immediate delivery. (Sale reserved.) We are happy to provide you with an individual offer. Visit us and inspect the machine under power. Travel range: X450/Y350/Z400 mm Table size: 800 x 400 mm Drive power: 7/10 kW Ndedpfjxapdcex Aa Ioc Infinitely variable spindle speed: 10–5000 rpm SIEMENS Sinumerik 828D Universal toolroom milling and drilling machine equipped with the modern Sinumerik 828D control system and hydraulic tool clamping. Travel range: X450/Y350/Z400 mm Drive power: 7/10 kW Spindle speed: 10–5000 rpm Feed rate: 10–2000 mm/min Rapid traverse up to 5000 mm/min Toolroom machine precision according to DIN 8615 Tool holder: DIN 69871 SK40 Includes: - Linear guides - Ball screws - Vertical milling head swivel ±90° with quill stroke 80 mm - Swivelling unit for vertical head - Hydraulic tool clamping - Coolant system - LED machine lighting - Fixed angle table 800x400 mm - Chip tray - Automatic central lubrication - Service tools - Documentation in Czech and English - Sinumerik 828D interface in Czech, German, English - 15" multi-touch display - Includes 3-axis control package with ball screws and servomotors - Machining cycles with graphic support: - Drilling, deep drilling, reaming - Tapping (with length compensation), on pitch circle and in a line of holes - Rectangular and circular pockets - Slot milling cycle - Measurement cycle - etc. - USB interface

Condition: ready for operation (used), Year of construction: 2019, Control Unit Brand SIEMENS Njdpfxoxpklae Aa Iodc Model Sinumerik 828D Main Drive Spindle speed range 10–5000 Number of axis 3 Movement X-Axis Movement 450 mm Y-Axis Movement 350 mm Z-Axis Movement 400 mm Tools Type of tool holder SK40 This 3-axis EMCO Emcomat FB-450 MC was manufactured in 2019. It features a travel range of X450/Y350/Z400 mm, a fixed angle table of 800x400 mm, and a table load capacity of 450 kg. The spindle speed reaches up to 5000 rpm, complemented by a rapid traverse of 5000 mm/min. Includes a Sinumerik 828D interface with multi-touch display and a comprehensive 3-axis control package. If you are looking to get high-quality milling capabilities consider the EMCO Emcomat FB-450 MC machine we have for sale. Contact us for more information. Application Types Milling

Condition: new, Year of construction: 2025, functionality: fully functional, spindle bore: 50 mm, turning diameter over bed slide: 400 mm, center height: 200 mm, spindle speed (min.): 50 rpm, spindle speed (max.): 4,000 rpm, total length: 2,495 mm, total width: 1,730 mm, total height: 1,700 mm, type of input current: three-phase, overall weight: 1,500 kg, rotational speed (min.): 50 rpm, rotational speed (max.): 4,000 rpm, three-jaw chuck diameter: 200 mm, Equipment: rotational speed infinitely variable, Cycle controlled lathe center width 1000 mm centre height 200 mm spindle bore 53/50 mm max. Speed 4000 rpm Spindle connection size 5, DIN55029 Max. drive power Drive power 7,5 / 10 kW Manual machine (operation via electronic handwheels) Siemens 828D full CNC control dimensions (LxWxH) 2320 x 1730 x 1700 mm Ndjdpfedtmwtox Aa Isc Machine weight 1500 kg As a regional partner of EMCO we offer maintenance, service and training in the field of conventional machines. Visit our showroom in Stuttgart for machine inspections.

Condition: ready for operation (used), Year of construction: 2001, functionality: fully functional, machine/vehicle number: R6AP3801, turning length: 600 mm, turning diameter: 360 mm, controller model: Siemens CNC 840 D, TECHNICAL DETAILS Turning diameter: 360 mm Turning length: 600 mm Control: Siemens CNC 840 D MACHINE DETAILS Operating voltage: 400 V~ Phases: 3/PE Frequency: 50/60 Hz Maximum current: 48 A Nominal current: 36 A Short-circuit current (Ik): 6 kA EQUIPMENT Nedpfxew Em A Ae Aa Iodc - Double spindle

Condition: excellent (used), Year of construction: 2011, operating hours: 10,111 h, functionality: fully functional, machine/vehicle number: M12400511, travel distance X-axis: 1,200 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 600 mm, spindle speed (max.): 12,000 rpm, number of slots in tool magazine: 30, TECHNICAL DETAILS Control: Heidenhain TNC 620 X-axis: 1,200 mm Y-axis: 600 mm Z-axis: 600 mm 4th axis: included in delivery, dismantled Njdevrz Smjpfx Aa Isdc Spindle Taper: SK 40 Max. speed: 12,000 rpm Condition: New spindle (2024), runs very smoothly Tool changer Capacity: 30 tools MACHINE DETAILS Control switch-on time: 34,597 h Program run: 11,726 h Spindle run time: 10,111 h

Condition: ready for operation (used), Year of construction: 2005, operating hours: 25,217 h, General Data Measurements width 3400 mm Measurements depth 2550 mm Measurements height 2300 mm Machine weight 8500 kg Control Unit Brand SIEMENS Model 840D Main Drive Number of spindles 2 Spindle speed range 5000 Movement X-Axis Movement 280 mm, X-Axis Rapid Traverse 24 m/min Y-Axis Movement 100 mm +/-50 mm Y-Axis Rapid Traverse 10 m/min Z-Axis Movement Z/Z2/Z3=900/750/750 mm Z-Axis Rapid Traverse 30 m/min Workpiece Workpiece X 744 mm Table Tslots size VDI40 Turret Number of turrets 2 Number of tool slots 12 Motorized tools VDI40 stations (both upper and lower turret) Media Power consumption 46 kVA Internal cooling Yes General Data Measurements width 3400 mm Measurements depth 2550 mm Measurements height 2300 mm Machine weight 8500 kg Control Unit Brand SIEMENS Model 840D Main Drive Number of spindles 2 Spindle speed range 5000 Movement X-Axis Movement 280 mm, X-Axis Rapid Traverse 24 m/min Y-Axis Movement 100 mm +/-50 mm Y-Axis Rapid Traverse 10 m/min Z-Axis Movement Z/Z2/Z3=900/750/750 mm Z-Axis Rapid Traverse 30 m/min Nedpfxsxfcrdo Aa Isdc Workpiece Workpiece X 744 mm Table Tslots size VDI40 Turret Number of turrets 2 Number of tool slots 12 Motorized tools VDI40 stations (both upper and lower turret) Media Power consumption 46 kVA Internal cooling Yes This 7-axis EMCO HYPERTURN 665 MC PLUS lathe was manufactured in 2005. It features twin spindles, twin turrets, and a maximum turning diameter of 600 mm. Equipped with a SIEMENS 840D CNC, it offers spindle speeds up to 5000 rpm and a bar passage diameter of 65 mm. Additional features include a LNS MOVE bar loading magazine, high-pressure coolant system, and air-conditioned control cabinet. For more information about this lathe, please reach out to us. Application Types Turning

Condition: new, Year of construction: 2025, functionality: fully functional, feed length X-axis: 600 mm, feed length Y-axis: 400 mm, feed length Z-axis: 400 mm, spindle speed (max.): 5,000 rpm, spindle speed (min.): 10 rpm, rapid traverse X-axis: 5,000 m/min, rapid traverse Y-axis: 5,000 m/min, rapid traverse Z-axis: 5,000 m/min, table length: 800 mm, table width: 400 mm, total height: 1,990 mm, total length: 2,100 mm, total width: 2,190 mm, rotational speed (max.): 5,000 rpm, rotational speed (min.): 10 rpm, overall weight: 2,370 kg, table load: 300 kg, workpiece weight (max.): 300 kg, Equipment: documentation/manual, rotational speed infinitely variable, When space is at a premium and maximum accuracy is required, conventional milling machines are in demand. The cycle-controlled milling machines offer an economical alternative for the production of small batches or larger workpieces.Machine highlights:- Pivoting control panel- Right/left rotation of the main spindle- All pinching points eliminated by covers- Hardened and ground shafts and gearwheels- Linear guides- Main motor with spindle brake- Quadruple-bearing radial/axial milling spindle- Sinumerik 828D or Heidenhain TNC 620working area:- Traverse path in X/Y/Z: 600 / 400 / 400 mm Distance spindle nose table: 230 - 630 mm (horizontal milling spindle) - Rapid traverse speed X/Y/Z: 5000 mm/min- Working feed X/Y/Z: 10 - 2000 mm/min- Max. travel distance in X/Y/Z: 600 / 400 / 400 mm- Max. travel distance spindle nose table: 230 - 630 mm (horizontal milling spindle) - Max. travel distance X/Y/Z: 5000 mm/min- Max. travel distance X/Y/Z: 10 - 2000 mm/min- Max. travel distance X/Y/Z: 630 mm Feed force in X/Y/Z: 10 / 10 / 15 kN- Clamping surface: 800 x 400 (rigid angular table)- Max. feed force in X/Y/Z: 10 / 10 / 15 kN- Max. feed force in X/Y/Z: 10 / 15 kN- Max. feed force in X/Y/Z: 800 x 400 (rigid angular table) Table load: 300 kg (rigid angular table)Vertical milling head:- Speed range: 10-5000 rpm- Power: 13 kW Njdpfxjd D I Tme Aa Isdc

Condition: as good as new (ex-display), Year of construction: 2024, Immediately available stock machine from our showroom Stuttgart. ( subject to prior sale) Contact us for an offer. EMCOMAT FB 450 with Siemens control. New machine immediately available. ( subject to prior sale) Contact us for an offer. We will be happy to make you an offer. Visit our demonstration center Arbeitsbereich X450/Y350/Z400mm Table size 800x400mm 7/10kW drive power speed range stepless 10-5000 rpm Siemens 828D Universal tool milling and drilling machine with Sinumerkik 828D contouring control and hydraulic tool clamping. Arbeitsbereich X450/Y350/Z400mm 7/10kW drive power Speed from 10-5000 rpm feed rate from 10-2000 mm/min rapid traverse up to 5000 mm/min Toolmaker accuracy DIN8615 tool holder DIN 69871 SK40 Includes:Linear guides Ball screws Vertical milling head +/-90° swiveling with 80mm quill stroke Swing out device for vertical head Hydraulic tool clamping Coolant device LED machine lamp Rigid angular table 800x400mm Chip tray Automatic central lubrication Operating tool Documentation Sinumerik 828D contouring control with 15" multi-touch screen incl. control package in 3 axes with ball screws and servo motors, machining cycles with graphic support: Drilling cycles for drilling, deep drilling, reaming, tapping (with length compensation) on hole circle and hole lines, rectangular and circular Ndodpjibd Aljfx Aa Isc pocket, slot milling cycle, cycles for line-off, etc., USB interface

Condition: new, Year of construction: 2025, functionality: fully functional, feed length X-axis: 600 mm, feed length Y-axis: 400 mm, feed length Z-axis: 400 mm, spindle speed (max.): 5,000 rpm, spindle speed (min.): 10 rpm, total height: 1,990 mm, total length: 2,100 mm, table width: 2,190 mm, rotational speed (max.): 5,000 rpm, rotational speed (min.): 10 rpm, overall weight: 2,370 kg, workpiece weight (max.): 300 kg, Equipment: rotational speed infinitely variable, Universal milling and drilling machine with Heidenhain TNC 620 contouring control as manual machine operable via handwheels. Control can be locked via key switch and hydraulic tool clamping. Arbeitsbereich X600/Y400/Z400mm 7/10kW drive power speed from 10-5000 rpm feed rate from 10-2000 mm/min rapid traverse up to 5000 mm/min Toolmaker accuracy DIN8615 tool holder DIN 69871 SK40 Includes:Linear guides Ball screws Vertical milling head +/-90° swiveling with 80mm quill stroke Swing out device for vertical head Hydraulic tool clamping Coolant device LED machine lamp Rigid angular table 800x400mm Chip tray Automatic central lubrication Operating tool Documentation Heidenhain TNC 620 contouring control with 19" multi-touch screen Ndsdpfjibarqox Aa Ijc incl. drive package in 3 axes with ball screws and servo motors, Fixed cycles with graphic support: Drilling cycles for drilling, deep drilling, reaming, tapping (with length compensation) on hole circle and hole lines, rectangular and circular pocket, slot milling cycle, cycles for line-off, etc., USB interface, PC keyboard

Condition: ready for operation (used), Year of construction: 2007, operating hours: 11,261 h, functionality: fully functional, machine/vehicle number: M-077.084.07, empty load weight: 4,800 kg, Equipment: chip conveyor, MACHINE DETAILS Weight: 4,800 kg Operating Hours Spindle hours: 11,261 h Control system on hours: 125,668 h EQUIPMENT Conveyor belt (FAMUP 405-1498-1, 352 kg) Nodpfxsxpvwze Aa Ijdc

Condition: used, Year of construction: 2005, functionality: fully functional, For sale: CNC Turning Center EMCO Turn 325-II (Year 2005) Condition: Good, technically sound. Manufacturer: EMCO Maier GmbH (Austria) Model: Turn 325-II Year of manufacture: 2005 A compact and reliable CNC turning center suitable for metal part machining, threading, and milling in small to medium-sized production runs. Main technical specifications: (based on EMCO Turn 325-II model specification) Control: Siemens Max. turning diameter: 250 mm Max. turning length: 500 mm Spindle speed: up to 5000 rpm Tool turret: 12 positions (automatic tool changer) Max. tool length: 100 mm Motor power: approx. 15 kW Ndodpfexp Iyhex Aa Ioc Cooling: integrated cooling system Power supply: 400 V / 50 Hz Machine weight: approx. 3500 kg If you have additional questions, we are happy to assist.

Condition: excellent (used), Year of construction: 2023, Coolant system, year of manufacture 2023 Nedpfx Aasxqlp As Isdc ZXM960101

Condition: used, control SIEMENS SINUMERIC 840C x-axis 235 mm z-axis 270 mm x2-axis 235 mm z2-axis 680 mm hollow 65 mm max. turning speeds 4.000 min/-1 number of tool places 2 x 12 Pos. In our opinion, the machine is in good used condition and can be inspected under power by appointment. Technical Features & Accessories: - IEMCA TAL 65 AUTO bar loader - Various fixed and driven tool holders - C-axis Accessories, tools, and clamping devices shown are only included in the scope of delivery if noted in the additional information. Ndodpfx Aoxqhqioa Ijc Subject to changes and errors in the technical data and information, as well as subject to prior sale!

Condition: used, Year of construction: 2000, turning diameter over bed 340 mm turning length 190 mm circulation diameter max. 158 mm x-axis 300 mm y-axis 300 mm spindle bore 42 mm Nedpfjw Sybkex Aa Iedc 2 weight of the machine ca. 2,6 t dimensions of the machine ca. 2200,0 × 1400,0 × 1800,0 m

Condition: excellent (used), Year of construction: 2023, Chip conveyor, year 2023 ZXM940110 Ndedpfsxqlppjx Aa Iec

Condition: used, Year of construction: 2010, turning diameter 220 mm turning length 310 mm control Siemens 810 D powerline turning diameter over bed 430 mm hollow 45 mm spindle tunring speed 6.300 U/min x-travel 160 mm z-travel 310 mm number of tool places 12 Pos. total power requirement 17 kW Transport dimensions ca. 3,3 x 1,5 x 1,95 m machine weight ab. ca. 3.300 kg In our opinion, the machine is in good used condition and can be inspected under power by appointment. Technical Features & Accessories: - C-axis - Documentation - Backup - EMCO LM 800 bar loader Accessories, tools, and clamping devices shown are only included in the scope of delivery Ndjdpfxoxp R Eae Aa Ioc if noted in the additional information. Subject to changes and errors in the technical data and information, as well as subject to prior sale!

Condition: used, turning diameter . mm turning length . mm swing diameter over bed slide . mm Ndedpfx Aaeqn A Rrj Ioc