Used Star Quot Swiss Lathe Quot for sale (115)

Condition: used, Year of construction: 2001, operating hours: 51,500 h, machine/vehicle number: IntNr230346, CNC sliding headstock lathe STAR SR20R, year 2001 Control, Fanuc, Series 18i-T, 7 axes (X/Z/Y/C1/X1/Z1(C2), Bar Ø max. 20 mm, turning length max. 205 mm, Main spindle, max. speed 10,000 rpm, C-axis 0.001 degrees, Counter spindle with collet chuck, max. speed 8,000 rpm, C-axis, Tool holder for a total of 19 tools (linear tool holder, front attachment, rear machining), parts conveyor belt, standard guide bush unit Loading magazine FMB turbo 3-26/3200 / A /, year 2001 Machine coolant: oil. Extinguishing system Kraft & Bauer The machine can be inspected under power by appointment. Changes and errors in the technical data and information as well as subject to prior sale! used CNC sliding headstock lathe STAR SR20R, year 2001 control, make Fanuc, series 18i-T, Hjdpsx Sv Uhsfx Adbji 7 axes (X/Z/Y/C1/X1/Z1(C2), bar-Ø max. 20 mm, turning length max. 205 mm, main spindle, speed max. 10.000 rpm, C-axis 0,001 degree, counter spindle with collet, speed max. 8.000 rpm, C-axis, tool holder for a total of 19 tools (linear tool holder, front attachment, rear machining), parts conveyor belt, standard guide bush unit loading magazine FMB turbo 3-26/3200 / A /, year 2001 Machine coolant: oil. Extinguishing system Kraft & Bauer The machine can be inspected under power by appointment. Changes and errors in the technical data and information as well as subject to prior sale!

Condition: ready for operation (used), Bar Capacity: 0.63" (16 mm) Spindle Speed: 10,000 RPM Max. Headstock Stroke in one chucking: 12" (305 mm) Max. Drilling Diameter: 5/16" (8 mm) Max. Milling Diameter: 2/5" (10 mm) Max. Slotting Capacity: 1.5 mm x 4 mm Spindle Indexing: 15 degrees Main Spindle Motor: 2.2 kW / 3.7 kW Power Driven Attachment Motor: 0.4 kW Number of Tools: 9 Number of Live/Rotary Tools: 2 Rotary Tool Speeds: 350 – 5,000 RPM Max. Chucking Diameter: 5/8" (16 mm) Max. Length for Front Ejection: 5" (127 mm) Max. Drilling Diameter: 1/4" (6.5 mm) Number of Tools: 3 Sub-spindle Speed: 400 – 6,000 RPM Sub-spindle Motor: 1.5 kW Dimensions: 81" x 46" x 67" (2,057 mm x 1,168 mm x 1,702 mm) Weight: 5,100 lbs (2,313 kg) Hsdpjw Rfcqefx Adboi Options: Fanuc Bar Feeder IEMCA MINI BOSS 325r Live Tooling (not working) Sub Spindle

Condition: excellent (used), Year of construction: 2016, operating hours: 20,105 h, CNC-swiss type automatic lathe brand: STAR type: SR-38B new in: 2016 equipped with: FANUC 31i - B control subspindle back working driven tools 2x c-axis programmable b-axis y2-axis x3-axis switchable between guide bush and non-guide bush modes high pressure pump Hedpfsxl Etqox Adbsi ol mist parts conveyor chip conveyor fire extinguishing system automatic barloader FMB LSK 38

Condition: used, Year of construction: 2006, bar material dia. 20 mm spindle passage 22 mm turning length 205 mm Control Siemens Yaskawa turning speeds 500-10.000 U/min c-axis 0,001 ° gripping station 20 mm turning length 30 mm positive location each 0,001 ° Number of tools 10 fest / fix St. Hsdpoxukr Defx Adbji total power requirement 2,2/3,7 kW weight of the machine ca. 3,5 t dimensions of the machine ca. 2,6 x 1,2 x 1,8 +FMB m CNC sliding head lathe Star Ecas 20, built in 2006, with FMB minmag 18 loading magazine, in good condition, from the medical technology sector. Two machines of the same type and year of manufacture are available.

Condition: good (used), Year of construction: 2011, CNC Swiss-type automatic lathe Make: STAR Model: SR-32 J Type N Year of manufacture: 2011 Equipped with: FANUC 32i Model B control Synchronous spindle Live tooling C-axis Subsequent machining (backworking) High-pressure pump Chip conveyor Hodpjycqx Iofx Adbei Parts conveyor Oil mist extraction unit Bar feeder: FMB TURBO 3-36

Condition: ready for operation (used), Year of construction: 2018, Max. clamping diameter: 20mm, max. workpiece length: 205mm (GB type), 45mm (NGB type), sub-spindle diameter: 20mm, sub-spindle bore: 21mm, max. sub-spindle speed: 9000/min, main spindle motor power: 2.2kW (continuous)/3.7kW (10min / 25% DC), sub-spindle motor power: 0.55kW (continuous)/1.1kW (15min / 40% DC), driven tool capacity: max. 6000/min, tool motor power: 1kW (continuous)/1.2kW (5min / 30% DC), control: Fanuc 0i-TD, connected load: 3.74kVA, noise level: 74dB(A), length: 2070mm, width: 1177mm, height: 1760mm, weight: 1700kg. With bar feeder for bars max. 3200mm and automatic bar loading magazine for bar diameter: 2-20mm. An on-site inspection is possible. Hodpfxow U T Tro Adbsi

Condition: used, STAR SW 20 is a CNC automatic (Swiss-type) lathe offering high precision, strong accuracy and reliable performance. Capacities: 11 axes, 2 spindles, max machining Ø 20 mm, back spindle up to 10,000 t/min. Specs: spindle 3.7 kW, driven tools 1.2 kW (8,000 t/min), carriages with 7 and 5 positions, counter-operation 8 tools (6 driven), rapid traverse 35 m/min, 50 Hz 3x380 V, ~3400 kg, L2600×W1150×H1765 mm. Accessories: bar loader, lamp, 150 l coolant system, ELBARON oil-mist extractor, interface for bar loader. Achieves tight tolerances; typical uses: automotive, watchmaking, tooling, aerospace, medical. Hjdpfxox S N Sys Adbei

Condition: good (used), Year of construction: 2000, functionality: fully functional, Controller Fanuc 18i-T NC controlled axes 6 Original Japan With barfeeder FMB mini turbo 2-16 / 3200 A For 3 m bars Max. turning dia 16 mm Max. drilling capacity 7 mm Max. tapping capacity M6 Rapid feed in X/Y/Z/ZB = 20/20/20 m/min Rapid feed in A = 78,5 m/min Hodpfjxvbbfox Adbsi Feedrate in X/Y/Z/ZB = 10/10/10 m/min Feedrate A = 10 m/min Main spindle speed 500 - 12000 rpm Main spindle power 100/40% ED/Power 2,2 kW Outer tool places 6 Driven tool places 3 Rear side operation Max. turning dia D16 mm Max. part length 85 mm Sub spindle speed 500 - 8000 rpm Sub spindle power 0,55 kW Max. drilling capacity 4 mm Max. tapping capacity M3 Weight 1700 kgs Dimensions LxWxH = 2163 x 770 x 1650 mm Features, accessories - FMB Mini Turbo barfeeder 3 meter - C axis on both spindles - Low volt lamp - Hydraulic unit - Coolant unit (run with oil) - Central lubrication - Door interlock - Ready part conveyor The lathe was removed from production recently. Good condition.

Condition: excellent (used), Year of construction: 2007, turning diameter over bed 32 mm spindle passage 32 mm turning length 125 mm Control YASKAWA SIEMENS 840 DI V2 spindle turning speed range 7000 U/min workpiece length - max. 150 mm clamping diameter 32 mm feed 0 - 2000 mm/min weight of the machine ca. 5,7 t dimensions of the machine ca. 10,5 x 2 x 1,9 m The sliding headstock automatic lathe is in good condition and ready for immediate use. with tool holders and spare parts. >> Two identical STAR 32T sliding headstock lathes are available Hodpfxexq Hk Us Adbsi

Condition: excellent (used), Year of construction: 2008, turning diameter over bed 32 mm spindle passage 32 mm turning length 125 mm Control YASKAWA SIEMENS 840 DI V2 clamping diameter 32 mm spindle turning speed range 7000 U/min workpiece length - max. 150 mm feed 0 - 2000 mm/min weight of the machine ca. 5,7 t dimensions of the machine ca. 10,5 x 2 x 1,9 m The sliding headstock automatic lathe is in good condition and ready for immediate use. Hedjvwgmyopfx Adbsi with tool holders and spare parts. >> Two identical STAR 32T sliding headstock lathes are available

Condition: used, TECHNICAL DETAILS - Number of axes : 7 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 20 [mm] - Max. machining length : 205 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 0.001 [°] COUNTER-SPINDLE - Max. bar diameter : 20 [mm] - Spindle speeds : 8000 [rpm] Hjdexlum Tjpfx Adboi - Spindle power : 2.2 [kW] - C axis indexing precision : 1 [°] - Number of guide bush holders : 1 GUIDE BUSH HOLDER 1 - Number of positions : 10 - Number of motorized positions : 4 END ATTACHMENT - Number of positions : 7 SECONDARY OPERATION - Number of positions : 4 - Number of motorized positions : 4 - Live tools speed : 8000 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 7 [kW] WEIGHT & DIMENSIONS - Machine floor space : 2200 x 1200 [mm] - Machine height : 1700 [mm] - Machine weight : 2200 [kg] MACHINE HOURS - Number of hours under power : 34143 [h] - Number of working hours : 26657 [h] - Number of spindle hours : 15552 [h] EQUIPMENT - CNC : Fanuc 30i-model A - HFT (High Frequency Turning) - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : FMB turbo 3-26 / 3200 A

Condition: used, TECHNICAL DETAILS - Number of axes : 7 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 20 [mm] - Max. machining length : 205 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 0.001 [°] COUNTER-SPINDLE - Max. bar diameter : 20 [mm] - Spindle speeds : 8000 [rpm] - Spindle power : 2.2 [kW] - C axis indexing precision : 1 [°] - Number of guide bush holders : 1 GUIDE BUSH HOLDER 1 - Number of positions : 10 - Number of motorized positions : 4 END ATTACHMENT - Number of positions : 7 SECONDARY OPERATION - Number of positions : 4 - Number of motorized positions : 4 - Live tools speed : 8000 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 7 [kW] WEIGHT & DIMENSIONS - Machine floor space : 2200 x 1200 [mm] - Machine height : 1700 [mm] - Machine weight : 2200 [kg] MACHINE HOURS - Number of hours under power : 27854 [h] - Number of working hours : 20213 [h] - Number of spindle hours : 13158 [h] EQUIPMENT Hsdpfx Adjxlum Hsboi - CNC : Fanuc 30i-model A - HFT (High Frequency Turning) - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : FMB turbo 3-26 / 3200 A

Condition: used, TECHNICAL DETAILS - Number of axes : 7 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 20 [mm] - Max. machining length : 205 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 0.001 [°] COUNTER-SPINDLE - Max. bar diameter : 20 [mm] - Spindle speeds : 8000 [rpm] - Spindle power : 2.2 [kW] - C axis indexing precision : 1 [°] - Number of guide bush holders : 1 GUIDE BUSH HOLDER 1 - Number of positions : 10 - Number of motorized positions : 4 END ATTACHMENT - Number of positions : 7 SECONDARY OPERATION - Number of positions : 4 - Number of motorized positions : 4 - Live tools speed : 8000 [rpm] POWER SUPPLY - Supply voltage : 400 [V] Hsdpfx Asxpi Igedbei - Total installed power : 7 [kW] WEIGHT & DIMENSIONS - Machine floor space : 2200 x 1200 [mm] - Machine height : 1700 [mm] - Machine weight : 2200 [kg] MACHINE HOURS - Number of hours under power : 46071 [h] - Number of working hours : 33799 [h] - Number of spindle hours : 20194 [h] EQUIPMENT - CNC : Fanuc 30i-model A - HFT (High Frequency Turning) - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : FMB turbo 3-26 / 3200 A

Condition: used, TECHNICAL DETAILS - Number of axes : 7 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 20 [mm] - Max. machining length : 205 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 0.001 [°] COUNTER-SPINDLE - Max. bar diameter : 20 [mm] - Spindle speeds : 8000 [rpm] - Spindle power : 2.2 [kW] - C axis indexing precision : 1 [°] - Number of guide bush holders : 1 GUIDE BUSH HOLDER 1 - Number of positions : 10 - Number of motorized positions : 4 END ATTACHMENT - Number of positions : 7 SECONDARY OPERATION - Number of positions : 4 - Number of motorized positions : 4 - Live tools speed : 8000 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 7 [kW] Hodpfx Aoxlumtedbei WEIGHT & DIMENSIONS - Machine floor space : 2200 x 1200 [mm] - Machine height : 1700 [mm] - Machine weight : 2200 [kg] MACHINE HOURS - Number of hours under power : 46042 [h] - Number of working hours : 34490 [h] - Number of spindle hours : 19447 [h] EQUIPMENT - CNC : Fanuc 300is-model A - HFT (High Frequency Turning) - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : FMB turbo 3-26 / 3200 A

Condition: used, Swiss-type cnc lathe STAR SE-12 Hsdpfx Aowp T I Todbei

Condition: used, TECHNICAL DETAILS - Number of axes : 8 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 20 [mm] - Max. machining length : 205 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 0.001 [°] COUNTER-SPINDLE - Max. bar diameter : 20 [mm] - Spindle speeds : 10000 [rpm] - Spindle power : 3.7 [kW] - C axis indexing precision : 1 [°] - Number of guide bush holders : 1 GUIDE BUSH HOLDER 1 - Number of positions : 12 - Number of motorized positions : 8 - Live tools speed : 7000 [rpm] END ATTACHMENT Hjdowcg Tiepfx Adbsi - Number of positions : 7 SECONDARY OPERATION - Number of positions : 8 - Number of motorized positions : 8 - Live tools speed : 8000 [rpm] POWER SUPPLY - Supply voltage : 400 [V] - Total installed power : 7 [kW] WEIGHT & DIMENSIONS - Machine floor space : 2334 x 1200 [mm] - Machine height : 1700 [mm] - Machine weight : 2600 [kg] MACHINE HOURS - Number of hours under power : 57342 [h] - Number of working hours : 31575 [h] - Number of spindle hours : 24829 [h] EQUIPMENT - CNC : Fanuc 31i-B - Rotating guide bush - Chips conveyor - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : FMB turbo 3-26 - Electric transformer

Condition: used, TECHNICAL DETAILS - Number of axes : 5 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 16 [mm] - Spindle speeds : 12000 [rpm] - C axis indexing precision : 1 [°] COUNTER-SPINDLE - Max. bar diameter : 16 [mm] - Spindle speeds : 8000 [rpm] GUIDE BUSH HOLDER 1 - Number of positions : 9 - Number of motorized positions : 3 - Live tools speed : 8000 [rpm] END ATTACHMENT - Number of positions : 3 SECONDARY OPERATION - Number of positions : 3 POWER SUPPLY - Supply voltage : 400 [V] MACHINE HOURS - Number of working hours : 57297 [h] - Number of spindle hours : 39537 [h] EQUIPMENT - CNC : Fanuc 18iT - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : IEMCA SMART 316/32L - Fire extinguisher * NB : working order not guaranteed. To have it checked by a qualified organization of the buyer. - Electric transformer Hjdpfx Asu Elk Djdbsi - Number of turning tool holders : 3

Condition: used, TECHNICAL DETAILS - Number of axes : 5 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 16 [mm] - Spindle speeds : 12000 [rpm] - C axis indexing precision : 1 [°] COUNTER-SPINDLE - Max. bar diameter : 16 [mm] - Spindle speeds : 8000 [rpm] GUIDE BUSH HOLDER 1 - Number of positions : 9 - Number of motorized positions : 3 - Live tools speed : 8000 [rpm] END ATTACHMENT - Number of positions : 3 SECONDARY OPERATION - Number of positions : 3 POWER SUPPLY - Supply voltage : 400 [V] MACHINE HOURS - Number of working hours : 73252 [h] - Number of spindle hours : 50900 [h] EQUIPMENT - CNC : Fanuc 18iT - Rotating guide bush - Parts catcher - Parts conveying strip - Ejection of workpiece - Coolant tank - Bar loader : IEMCA CH 220/32L - Fire extinguisher * Hodju Elkqspfx Adboi NB : working order not guaranteed. To have it checked by a qualified organization of the buyer. - Electric transformer - Number of turning tool holders : 3

Condition: used, TECHNICAL DETAILS - Number of axes : 9 - Number of spindles : 2 MAIN SPINDLE - Max. bar diameter : 32 [mm] - Travel : 310 [mm] - Spindle speeds : 280 - 7.000 [rpm] - Spindle power : 7,5 [kW] - C axis indexing precision : 0,01 [°] COUNTER-SPINDLE - Max. bar diameter : 32 [mm] - Z stroke : 150 [mm] - Spindle speeds : 280 - 7.000 [rpm] - Spindle power : 3,7 [kW] - C axis indexing precision : 0,01 [°] - Number of turrets : 1 UPPER TURRET - Number of positions : 10 - Number of motorized positions : 10 - Live tools speed : 5.700 [rpm] - Live tools power : 2,8 [kW] GUIDE BUSH HOLDER 1 - Number of positions : 4 - Number of motorized positions : 3 - Live tools speed : 6.000 [rpm] POWER SUPPLY - Supply voltage : 200 [V] - Total installed power : 8 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 2.645 x 1.403 [mm] - Machine height : 1.680 [mm] - Machine weight : 3.880 [kg] Hodpfx Adeuha Elobsi EQUIPMENT - CNC : Fanuc 16 iTB - 3 colors status lamp - Parts catcher - Parts conveying strip - Chips conveyor - Coolant tank - Bar loader : IEMCA BOSS 432/32LL - Electric transformer

Condition: used, TECHNICAL DETAILS - Number of axes : 7 - Number of spindles : 2 MAIN SPINDLE Hodpouhazasfx Adboi - Max. bar diameter : 32 [mm] - Travel : 310 [mm] - Spindle speeds : 7.000 [rpm] - Spindle power : 7,5 [kW] - C axis indexing precision : 0,001 [°] COUNTER-SPINDLE - Max. bar diameter : 32 [mm] - Spindle speeds : 7.000 [rpm] - Spindle power : 3,7 [kW] - C axis indexing precision : 0,001 [°] GUIDE BUSH HOLDER 1 - Number of positions : 11 - Number of motorized positions : 5 - Live tools speed : 5.000 [rpm] - Live tools power : 1,2 [kW] END ATTACHMENT - Number of positions : 4 SECONDARY OPERATION - Number of positions : 4 - Number of motorized positions : 4 POWER SUPPLY - Supply voltage : 200 [V] - Total installed power : 6,2 [kVA] WEIGHT & DIMENSIONS - Machine floor space : 2.711 x 1.275 [mm] - Machine height : 1.705 [mm] - Machine weight : 3.100 [kg] MACHINE HOURS - Number of working hours : 35.367 [h] EQUIPMENT - CNC : Fanuc 18i-TB - 3 colors status lamp - Coolant tank * with high-pressure pump - Bar loader : FMB Turbo 3-36/3200/A (2008)) - Ejection of workpiece - Parts catcher - Parts conveying strip - Chips conveyor - Fire extinguisher * NB : working order not guaranteed. To have it checked by a qualified organization of the buyer.

Condition: used, TECHNICAL DETAILS - Number of axes : 4 - Number of spindles : 2 MAIN SPINDLE Hodpfx Asuhaxxjdbsi - Max. bar diameter : 13 [mm] - Spindle speeds : 10'000 [rpm] COUNTER-SPINDLE - Z stroke : 140 [mm] GUIDE BUSH HOLDER 1 - Number of positions : 5 SECONDARY OPERATION - Number of positions : 3 POWER SUPPLY - Supply voltage : 3 x 380 [V] - Total installed power : 3.5 [kVA] EQUIPMENT - CNC : Fanuc 21iT - Parts catcher - Coolant tank * with high-pressure pump - Bar loader : LNS Alpha 320

Condition: used, STAR SB-20R type N is a CNC automatic lathe (CNC Swiss type) engineered for high-precision work with superior accuracy and reliability. Capacities: max turning Ø 20 mm, max drilling Ø 10 mm, max threading Ø 8 M; total 5 axes, C-axis resolution 0.001°. Specs: spindle stepless 500–10000 t/min, rapid traverse 35 m/min, spindle motor 2.2/3.7 kW, total power 3.7 kVA, 50 Hz 3x 400 V, weight ≈1800 kg, dimensions L2070 × W1770 × H1760 mm. Accessories: C axis, workpiece conveyor, chip conveyor, coolant system, RS232 and USB interfaces. Achieves tight tolerances; ideal for automotive, watchmaking, machine tools, aerospace and medical sectors. Hsdpfx Adjxx U Eisbei

Condition: ready for operation (used), functionality: fully functional, STAR SH-12 Control: Fanuc 21-T Device for unloading long parts Hsdpfxoxwugds Adbji Complete with IEMCA MINI BOSS 325 bar feeder

Condition: excellent (used), Year of construction: 2015, functionality: fully functional, Machine equipped with Nakanishi tools for the dental sector that has always operated in oil – fire prevention system – Iemca Boss 338HD/32, new in 2015 – well tooled – Fanuc 32i-B Control. Hedpfx Adow Ibpnobsi

Condition: used, Year of construction: 2019, machine/vehicle number: IntNr231494, FANUC, high-performance computer series 31i-B5, Well maintained, approx. 9,000 operating hours Technical Main Data Working Range Max. bar diameter: 38 mm Max. machining length (with guide bushing): approx. 320 mm Machining without guide bushing possible (for shorter workpieces) Max. collet diameter at sub spindle: 38 mm Main Spindle Spindle power: approx. 11–15 kW Max. speed: approx. 7,000 rpm Integrated C-axis (0.001° resolution) High-precision spindle bearings for heavy-duty machining Sub Spindle Power: approx. 5.5–7.5 kW Max. speed: approx. 7,000 rpm Full-function C-axis Part transfer and rear machining in one setup Axis Configuration X1 / Z1 (main system) X2 / Z2 (sub spindle system) Y-axis for off-center milling operations C-axis on main and sub spindle Optional B-axis type swivel functions (depending on equipment) Multi-channel control enables simultaneous machining on main and sub spindle for significantly reduced cycle times. Tooling Tool holder set (non-driven) Guide bushing unit (pull system, JBS) Oil cooler unit High-pressure conveyor (with integrated high-pressure unit), type Müller combistream CS 3 Coolant: oil Weight: 6.25 t Dimensions (LxWxH): 3477x1860x1865 mm The machine can be inspected under power by appointment. Subject to changes and errors in technical data and specifications as well as prior sale! Hedpfx Adjymmkbobei