Beli Reich Profi 400 bekas (19.660)

Kondisi: baik (bekas), Centrifugal pump, water pump, domestic water pump, garden pump, high-pressure centrifugal pump -Manufacturer: WILO, High-Pressure Centrifugal Pump Type Helix V1008-1/16/E/KS/400-50 -Power: 3 kW -Flow rate: l/h -p max: 16 bar -Quantity: 2 pumps available -Price: per unit Nodpfxswyaryj Aa Uolb -Dimensions: 250/240/H950 mm -Weight: 47 kg/unit.

Kondisi: bekas, Tahun pembuatan: 2003, Verfahrweg - x 300 mm Verfahrweg - z 400 mm Werkzeugaufnahme VDI 40 / VDI 50 Nodpfxsydqm Ue Aa Uolb Gesamtgewicht ca. 141 kg Raumbedarf ca. 1,2 x 0,8 x 0,85 m Werkzeugvoreinstellgerät ULMER - Präzisa 400

Kondisi: bekas, Tahun pembuatan: 1957, drehbank_800_4000 Nodpexwp Ehsfx Aa Ujlb

Kondisi: bekas, Tahun pembuatan: 2001, Swing diameter 400 mm Turning length 549 mm Control HEIDENHAIN Eltropilot Swing diameter over bed 570 mm Travel - X axis 220 mm Travel - Z axis 635 mm Main spindle bore 79 mm Main spindle speed 25 - 5000 rpm Main spindle motor 21 kW Maximum spindle torque 240 Nm Spindle nose diameter at front bearing 120 mm C-axis, speed 100 rpm C-axis holding torque 200 Nm C-axis resolution < 0.04° Sub-spindle bore 56 mm Sub-spindle speed 25 - 5000 rpm Sub-spindle motor 9 kW Maximum spindle torque 72 Nm Spindle nose diameter at front bearing 90 mm C-axis, speed 100 rpm C-axis holding torque 150 Nm C-axis resolution < 0.04° Feed force X/Z axis 3.5 / 7 Nm Njdpfx Aox I Sfnea Uolb Rapid traverse X axis 20 m/min Rapid traverse Z axis 24 m/min Tool turret 1 x 12 stations Number of driven tool stations 12 Speed of driven tools 4,000 rpm Total connected load 44 kVA Machine weight approx. 5.7 t Machine dimensions L x W x H 3.65 x 2.03 x 2.1 m Accessories: HAINBUCH collet chuck on main spindle, RÖHM 3-jaw chuck, 140 mm⌀, on sub-spindle, 3 collets, chip conveyor, coolant system with belt filter unit

Kondisi: bekas, Tahun pembuatan: 1983, Saw blade diameter 400 mm Cutting diameter 130 mm Stroke 150 mm Cutting area, square 120 x 120 mm Cutting area, flat 300 x 40 mm Cutting area at 45 degrees: round 130 mm Nedpjtqqrzefx Aa Uslb Cutting area at 45 degrees: square 110 x 110 mm Cutting area at 45 degrees: flat 245 x 40 mm Mitre cuts - double-sided 90° Cutting speed 13 / 25 m/min Control Minipos 807 Total connected load 4.3 kW Machine weight approx. 850 kg Machine dimensions (L x W x H) 1.20 x 1.20 x 1.82 m Accessories: Infeed and outfeed roller conveyors, each approx. 4000 mm long, NC-stop, coolant system

Kondisi: bekas, Tahun pembuatan: 1996, Grinding diameter: 5 - 255 mm Grinding length: 400 mm Centre height: 130 mm Plunge grinding length: 50 mm Control system: SINUMERIK 805 Grinding spindle speed: 25 - 1400 rpm Workpiece spindle speed: 0 - 500 rpm Cross feed of grinding spindle slide: 0 - 5000 mm/min Table speed: 0 - 5 m/min Grinding wheel diameter: 450 mm Total power requirement: 10 kW Nlodpotqqtrsfx Aa Ujb Machine weight approx.: 2.3 t Space requirement approx.: 2.65 x 2.2 x 2.35 m Accessories: Grinding wheel with flange, 3-jaw chuck, electronic hand control panel

Kondisi: sangat baik (bekas), Tahun pembuatan: 2007, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 4256.169.256, Clipsator Technopack TIPPERTE • Tipe: KDC VT 400 • Kapasitas pengklipan: hingga 120 siklus/menit • Diameter pengklipan: 30 hingga 120 mm • Sistem pneumatik terintegrasi, tekanan: 6 hingga 8 bar Njdpfx Ajyiph Uea Uelb • Konsumsi udara: sekitar 0,4 m³/menit • Konstruksi stainless steel: ideal untuk standar higienis yang ketat

Kondisi: sangat baik (bekas), Tahun pembuatan: 2016, Arburg 270C 400-70 e² with Arburg Multilift Robot / Hybrid Machine Year of manufacture: 2016 Injection Unit: Screw diameter: 22 mm Shot weight: 31 g Injection pressure: 2000 bar Metering volume: 34 ccm Clamping Unit: Clamping force: 40 t Tie bar distance: 270x270 mm Platen size: 446x446 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - touchscreen Additional Equipment: Hybrid machine: energy-saving and very quiet Euromap 67 Robot interface Air valve x 2 Hydraulic core pull x 1 Injection unit hardened - bimetallic Main motor of the machine: servo motor driven by frequency inverter - energy-saving Proportional valve on the injection unit – precise injection Self-sealing nozzle Arburg Multilift Select robot, 6 kg, transverse mounting Year of manufacture: 05.2016 5-axis robot: 3 axes driven by servo motors (electric); B and C axes Travel paths in axes: X-600, Y-800, Z-1000 Robot including adapter, conveyor belt and safety enclosure Purchase of robot and conveyor belt for an additional charge Dimensions: Weight: 2210 kg Length/Width/Height: 3.18x1.43x1.98 m Nedpfx Asy Smnxea Ujlb All machines offered are started up by our service technicians before sale. It is possible to receive a video of the technical tests for the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2007, Arburg 270C 400-70 Year of manufacture: 2007 Injection unit: Screw diameter: 22 mm Shot weight: 31 g Injection pressure: 2,000 bar Dosing volume: 34 ccm Clamping unit: Nledpfxjy Smnls Aa Ujb Clamping force: 40 t Tie bar spacing: 270x270 mm Platen dimensions: 446x446 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA – touchscreen Additional equipment: Euromap 67 Robot interface Air valve x 2 Hydraulic core pull x 1 Hot runner control Hardened injection unit – bimetallic Proportional valve on injection unit – precise injection Possibility to change screw diameter Dimensions: Weight: 2,370 kg Length/Width/Height: 2.99x1.43x1.98 m All offered machines are commissioned by our service engineers before sale. It is possible to receive a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2012, Arburg 680CB 400-170 / Vertical Injection Moulding Machine, Tie-bar-less / Excellent Technical Condition Year of Manufacture: 2012 Injection Unit: Screw diameter: 25 mm Shot weight: 54 g Injection pressure: 2,500 bar Dosage volume: 59 ccm Clamping Unit: Clamping force: 40 t Tie-bar distance: 0x0 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - touchscreen Additional equipment: Excellent technical condition Vertical, tie-bar-less injection moulding machine Euromap 67 Robot interface Air valve x 3 Hydraulic core pull x 3 Hot runner control x 12 Injection unit hardened – bimetallic Proportional valve on injection unit – precise injection Screw diameter change possible Machine regularly serviced by authorised Arburg service Original Arburg tool crane Dimensions: Weight: 6,500 kg Length/Width/Height: 1.97x1.69x3.40 m Nljdpoy Smmujfx Aa Ujb All machines offered are commissioned by our service technicians prior to sale. It is possible to receive a video of the technical tests for the selected machine or to participate in live technical tests at our facility in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2012, Arburg 820S 4000-2100/400 / Production Line with Sepro Industrial Robot SR S5-35 S3 Trans / Operating hours: 42,014 h in automatic mode Year of manufacture: 09.2012 Injection Unit: Screw diameter: 60 mm Shot weight: 723 g Injection pressure: 2500 bar Dosage volume: 792 cm³ Clamping Unit: Clamping force: 400 t Tie bar spacing: 820x820 mm Platen size: 1171x1171 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - touchscreen Additional equipment: 2K injection moulding machine with rotary table and robot Very good technical condition Operating hours: 42,014 h in automatic mode Euromap 67 Robot interface Air valve x 6 Hydraulic core pull, controlled by proportional valve x 4 pairs Hot runner control x 24 Reinforced injection units – bimetallic Proportional valve on the vertical injection unit – precise injection Machine with six cylinders / batteries with compressed nitrogen (extra charge for fast operation) Parallel movements Automatic mould height adjustment Screw diameter in vertical injection unit: ⌀40 mm - 184 g/PS Built-in system for pressure quality control by Kistler – measurement of mould pressure Original Weber rotary table: very precise, driven electrically by a servomotor controlled by an inverter Rotary table diameter: 1200 mm Purchase of rotary table at extra cost Robot: Sepro Industrial Robot SR S5-35 S3 Trans Year of manufacture: 2012 3-axis robot: 3 axes driven by electric servomotors: X, Y, Z (telescopic) Axis travel (approx.): X-5000, Y-1400, Z-2000 Automatic axis lubrication Touch control panel Robot safety package Robot with adapter and protective housing Nodpfsy Smgnsx Aa Uslb Purchase of robot at extra cost Dimensions: Weight: 21,000 kg Length/Width/Height: 8.00x2.32x4.21 m All offered machines are started up by our service technicians prior to sale. It is possible to receive a video of the technical tests for the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2012, Arburg 520S 1600-400/170 e² / Production Line with Geiger Robot Year of manufacture: 2012 Injection Unit: Screw diameter: 35 mm Shot weight: 141 g Injection pressure: 2,500 bar Dosage volume: 154 ccm Clamping Unit: Clamping force: 160 t Tie-bar distance: 520x520 mm Dimensions of the mounting plates: 695x695 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - Touchscreen Additional Equipment: 2K injection molding machine with rotary table and Geiger robot Very good technical condition Hybrid machine: energy-efficient and very quiet Euromap 67 Robot interface Nsdpfx Aajy Smdyj Ujlb Air valves x 4 Hydraulic core pull x 5 Hot runner control x 12 Reinforced injection unit – bimetal Machine equipped with two cylinders / batteries with compressed nitrogen (extra charge for fast operation) The machine features a servo motor integrated in the injection unit for dosing the plastic Parallel movements Screw diameter in the vertical injection unit: ⌀30 mm - 77 g/PS Integrated conveyor belt by Arburg and sorting chute Original Weber rotary table, highly precise – electrically driven (inverter integrated into the machine) Purchase of the rotary table and robot at extra cost Dimensions: Weight: 8,140 kg Length/Width/Height: 4.81x1.84x3.45 m All machines offered are started and tested by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical demonstrations at our facility in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2011, Arburg 520H 1500-400 e² / Hybrid Machine Year of manufacture: 2011 Injection Unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosage volume: 201 cc Clamping Unit: Clamping force: 150 t Tie bar spacing: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping unit type: toggle lever Control system: SELOGICA - Touchscreen Additional equipment: Hybrid machine: energy-efficient and very quiet Euromap 67 Robot interface Core pull control Hot runner controls x 8 Injection unit hardened - bimetal Nlodpjy Smccjfx Aa Ujb Main motor of the machine: servo motor with inverter - energy saving Injection unit driven by servo motor, controlled by inverter Machine equipped with a cylinder / battery containing compressed nitrogen (provides additional charge for high-speed operation) Central lubrication Parallel movements Priamus sensor - mold pressure control Dimensions: Weight: 6010 kg Length/Width/Height: 4.67x1.56x2.21 m All machines offered are started up by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical testing at our company in Łódź.

Kondisi: sangat baik (bekas), Tahun pembuatan: 2011, Arburg 520H 1500-400 e² / Hybrid Injection Moulding Machine Year of Manufacture: 2011 Injection Unit: Screw Diameter: 40 mm Shot Weight: 184 g Injection Pressure: 2000 bar Dosage Volume: 201 ccm Clamping Unit: Clamping Force: 150 t Tie Bar Distance: 520x520 mm Platen Size: 695x695 mm Ejector: electric Clamping System: toggle lever Control System: SELOGICA - Touchscreen Additional Equipment: Hybrid machine: energy saving and very quiet Euromap 67 Robot interface 4x air valves on the fixed platen side Nsdpfey Smb Sex Aa Ujlb 3x air valves on the moving platen side 1x hydraulic core pull on the fixed platen side Injection unit hardened - bimetal Main motor: servo motor driven by frequency inverter - energy saving Injection unit driven by servo motor, controlled by frequency inverter Machine equipped with cylinder / accumulator with compressed nitrogen (additional charge for fast operation) Central lubrication Parallel movements Automatic mould height adjustment Dimensions: Weight: 6550 kg Length/Width/Height: 4.67x1.56x2.21 m All offered machines are started up and tested by our service technicians before sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical demonstrations at our company in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2009, Arburg 470C 1500-400 Year of manufacture: 07/2009 Injection unit: Screw diameter: 45 mm Shot weight: 232 g Injection pressure: 1580 bar Dosing volume: 254 cm³ Clamping unit: Clamping force: 150 t Tie bar distance: 470 x 470 mm Platen size: 650 x 650 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - touchscreen Additional equipment: Core pull control Hardened injection unit - bimetallic Screw diameter can be exchanged Dimensions: Weight: 4790 kg Length/Width/Height: 4.44 x 1.63 x 2.09 m Drive: Pump/motor: 18.5 kW Heating power: 9.4 kW Total power: 27.9 kW All machines offered are started up by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine, or to participate in live technical tests at our facility in Łódź. Price: On request Nlodoy Smbrjpfx Aa Usb

Kondisi: sangat baik (bekas), Tahun pembuatan: 2009, Arburg 470C 1500-400 Year of manufacture: 07/2009 Injection unit: Screw diameter: 45 mm Shot weight: 232 g Injection pressure: 1580 bar Dosing volume: 254 cm³ Clamping unit: Clamping force: 150 t Tie bar distance: 470 x 470 mm Platen size: 650 x 650 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - touchscreen Nljdpfey Sma Isx Aa Usb Additional equipment: Core pull control Hardened injection unit - bimetallic Screw diameter can be exchanged Dimensions: Weight: 4790 kg Length/Width/Height: 4.44 x 1.63 x 2.09 m Drive: Pump/motor: 18.5 kW Heating power: 9.4 kW Total power: 27.9 kW All machines offered are started up by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine, or to participate in live technical tests at our facility in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2006, Arburg 470C 1500-400 with Wittmann W721 Robot Year of manufacture: 12/2006 Injection Unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosage volume: 201 ccm Clamping Unit: Clamping force: 150 t Tie bar spacing: 470x470 mm Platen size: 650x650 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - Touchscreen Additional equipment: Nljdpfx Asy Smazsa Uob Euromap 67 Robot interface Control system with air valve Hydraulic core pull x 1 Injection unit hardened - bimetallic Integrated conveyor belt and sorting gate Robot Wittmann W721 Year of manufacture: 2006 4-axis robot: 3 axes driven by servo motors (electric); C-axis - pneumatic Stroke lengths: X-550, Y-1200, Z-3000 Touch control panel Robot safety package Robot with adapter Robot purchase at extra cost Dimensions: Weight: 4900 kg Length/Width/Height: 4.44x1.63x2.09 m Drive: Pump/motor: 18.5 kW Heating capacity: 10.2 kW Total power: 28.7 kW All machines offered are commissioned by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical tests at our facility in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2008, Arburg 470C 1500-400 with Wittmann W711 Robot Year of manufacture: 2008 Injection Unit: Screw diameter: 45 mm Shot weight: 232 g Injection pressure: 1580 bar Dosage volume: 254 cc Clamping Unit: Clamping force: 150 t Tie bar distance: 470x470 mm Platen size: 650x650 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA - Touchscreen Additional equipment: Euromap 67 Robot interface Air valve x 1 Injection unit hardened - bimetallic Proportional valve on injection unit – precise injection Wittmann W711 robot Year of manufacture: 2007 4-axis robot: 3 axes driven by servomotors (electric); axis C Axis stroke: X-420, Y-1200, Z-2000 Touch control panel Robot safety package Robot with adapter Purchase of robot at additional cost Dimensions: Weight: 4900 kg Length/Width/Height: 4.44x1.63x2.09 m Drive: Pump/motor: 18.5 kW Nedsy Smauepfx Aa Uslb Heating capacity: 9.7 kW Total power: 28.2 kW All machines offered are started and tested by our service technicians prior to sale. A video of the technical inspection of the selected machine can be provided or you can participate in a live technical demonstration at our facility in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2008, Arburg 470S 1100-400 with Wittmann W711 Robot Year of manufacture: 2008 Injection Unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosage volume: 201 ccm Clamping Unit: Clamping force: 110 t Tie bar distance: 470 x 470 mm Platen size: 637 x 637 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - Touchscreen Additional Equipment: Euromap 67 Robot interface 2x pneumatic air valves 1x hydraulic core pull Hot runner control for 8 zones Injection unit hardened - bimetallic Proportional valve on injection unit – precise injection Conveyor integrated with machine control Integrated sorting chute Screw diameter can be changed Nsdpfx Asy Sl Scsa Uelb Wittmann W711 Robot Year of manufacture: 2008 4-axis robot: 3 axes driven by servo motors (electric): X, Y, Z; C axis - pneumatic Travel paths per axis: X-420 mm, Y-1200 mm, Z-2000 mm Touch control panel Robot with adapter Robot purchase available as an option (surcharge) Dimensions: Weight: 5,200 kg Length/Width/Height: 4.56 x 1.52 x 2.13 m All machines offered are commissioned by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Kondisi: sangat baik (bekas), Tahun pembuatan: 2010, Arburg 470H 1000-400 e² / Hybrid Machine / Production Line with Arburg Multilift Select Robot Year of Manufacture: 09.2010 Injection Unit: Screw Diameter: 40 mm Shot Weight: 184 g Injection Pressure: 2000 bar Dosage Volume: 201 ccm Clamping Unit: Clamping Force: 100 t Tie Bar Distance: 470x470 mm Platen Size: 637x637 mm Ejector: electric Clamping System: toggle lever Control: SELOGICA - touchscreen Additional Equipment: Hybrid machine: energy-saving and very quiet Euromap 67 Robot interface Air valve x 4 Hydraulic core pull x 1 Hot runner control x 12 Injection unit hardened - bimetallic Main drive motor – servo motor powered by inverter – energy savings Injection unit driven by servo motor, controlled by inverter Machine equipped with cylinder / battery with compressed nitrogen (for rapid cycling) Central lubrication Integrated sorting flap Arburg Multilift Select robot 6 kg transverse Nlsdpfx Aasy Sl R Se Ueb Year of manufacture: 09.2010 4-axis robot: 3 axes electrically operated by servo motors; C-axis pneumatic Axis travel: X-400, Y-600, Z-1800 Robot with adapter, conveyor belt, and safety enclosure Purchase of robot and conveyor belt available at additional cost Dimensions: Weight: 5180 kg Length/Width/Height: 4.40x1.56x2.02 m All machines offered are started up and checked by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: Upon request.

Kondisi: bekas, Tahun pembuatan: 2018, panjang total: 2.400 mm, tinggi total: 1.000 mm, lebar total: 1.200 mm, ce1cb71c-1d41-4b2b-b276-7fef412bb7bc Nljdpfxoy Tmu Uj Aa Ueb

Kondisi: sangat baik (bekas), Tahun pembuatan: 2018, Krauss Maffei KM 400-3000 GX Blue Power with Krauss Maffei LRX 250 Robot Year of manufacture: 2018 Injection Unit: Screw diameter: 80 mm Shot weight: 1464 g Injection pressure: 1855 bar Metering volume: 1608 cc Clamping Unit: Clamping force: 400 t Tie bar spacing: 920x830 mm Platen size: 1280x1240 mm Ejector: hydraulic Clamping unit: hydraulic Control system: MC5 - touchscreen Additional equipment: Very good technical condition Operating hours: approx. h in automatic mode Euromap 67 Robot interface Min./max. mould height: 400/900 mm Air valve x 4 Hydraulic core pull x 4 Hot runner control x 36 Self-closing nozzle x 10 Hardened injection unit - bimetallic Proportional valve on the injection unit – precise injection Automatic upper tie bar extraction function Machine regularly serviced by authorized Krauss Maffei service Krauss Maffei LRX 250 robot Year of manufacture: 2018 High-speed robot 5-axis robot: 5 axes driven by servo motors (electric): X, Y (telescopic), Z, B (rotation) and C Vacuum Touch panel control Robot including adapter, conveyor belt and protective housing Nljdpfx Aey Sl D Esa Ueb Purchase of robot and conveyor at extra cost Dimensions: Weight: 22,650 kg Length/Width/Height: 7.58x2.73x2.32 m All machines offered are started up by our service technicians before sale. A video of the technical tests of the selected machine is available on request or you may participate in live technical tests at our company in Łódź. Price: On request

Kondisi: bekas, Tahun pembuatan: 2016, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 410793, panjang pemakanan sumbu X: 400 mm, panjang umpan sumbu Y: 350 mm, panjang umpan sumbu Z: 400 mm, jarak pergerakan sumbu X: 400 mm, jarak lintasan sumbu Y: 350 mm, jarak gerak sumbu Z: 400 mm, kecepatan spindel (maks.): 4.500 rpm, kecepatan spindel (min.): 1 rpm, jarak gerak quill: 60 mm, berat keseluruhan: 1.800 kg, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, 1 Nljdey Tayqspfx Aa Ueb

Kondisi: sangat baik (bekas), Panel saw HOLZMA HPP 530 Profi Line, kondisi sangat baik Njdpfxey Uk D As Aa Ujlb

Kondisi: sangat baik (bekas), 7906 Nledpey Sn T Ajfx Aa Ujb