Mueller-Weingarten Skd 160.1.1 (Uvv) nakup rabljenega (1.850)

Stanje: rabljeno, Leto izdelave: 1981, Technical details: Pressure: 40 t Hodpfx Afoyk Utlj Tsn

Stanje: rabljeno, Leto izdelave: 1995, Material width: 650 mm Coil weight: 7.5 t Material thickness: 0.6 - 4.0 mm Coil inner diameter: 460 - 530 (630) mm Coil outer diameter: 1300 mm Material cross-section: 1300 mm² Number of straightening rolls: 9 Straightening roll diameter: 60 mm Speed: 1 - 30 m/min Drive power: 30.0 kW KOHLER Straightening Machine 50.650/9 with infinitely variable drive, powered straightening rolls, hard chrome-plated rolls, motorized roll gap adjustment Hsdev Ehaqspfx Af Tjn KOHLER Decoiler 7500.1 with auxiliary drive, hydraulic central expansion, hydraulic pressure device, extension jaws for expanding range to approx. 580 - 630 mm, motorized lateral adjustment, hydraulic loading station WEINGARTEN Servo Roll Feed WEP 65 Loop control by light barrier

Stanje: rabljeno, Leto izdelave: 1962, Nazivni tlak 400 t Hod 140 - 400 mm Hodpfx Aevuud Uof Ten Število hodov 24 - 36 /min Razdalja med stebri 800 / 700 mm Oddaljenost miza/kladivo, velik hod zgoraj, nastavitev zgoraj 900 mm Površina mize 700 x 700 mm Površina kladiva 630 x 630 mm Premer vretena 220 mm Pogonska moč 26,0 kW Teža 18,5 t Prostorske zahteve (ŠxGxV) 1,85 x 2,5 x 4,3 m Odobreno samo za vroče preoblikovanje Z zobniškim pogonom, enojna/dvojna udarna naprava, regulacija udarca

Stanje: rabljeno, Pressure 80 t Outreach 320 mm Stroke 8 - 112 mm Table size 830 x 600 mm Strokes per minute 30 - 85 Ram surface 650 x 400 mm Ram adjustment 71 mm Clamping plate 990 x 550 mm Table height above floor level 810 mm Hjdpfx Aotqm Dmsf Ten Table height above ground 800 mm Frame clearance (front) 680 mm Frame clearance (rear) 520 mm Total power requirement 7.5 kW Machine weight approx. 7.7 t Space requirement approx. 1.5 x 2.2 x 3.15 m Equipment: - with feed rollers - fixed table Machine has been/is being partially overhauled: - Complete disassembly and inspection - Table and ram surfaces re-milled - New seals and hydraulic hoses - New main motor - Both main bearing bushings, third bearing bushing, and connecting rod bushing replaced - Shaft machined and newly bushed - Repainting - New control cabinet with PLC and touchscreen wiring - Current UVV inspection with brake time measurement

Stanje: rabljeno, Leto izdelave: 1978, Presskraft 160 t Hubzahl 40 – 120 Hub/min Blechbreite mm gesamter Leistungsbedarf 40 kW Presskraft 160 to (1.600 kN) Tischaufspannfläche 1.100 x 1.280 mm Stößelaufspannfläche 850 x 890 mm Abstand zwischen Stößelführungen 1.120 mm Abstand zwischen den Ständern (unterhalb der Führungen) 1.350 mm Hubzahl stufenlos verstellbar 40 – 120 /min Hubverstellung 30 / 68 / 114 / 160 mm Stößelverstellung motorisch 125 mm Einbauhöhe je nach Hub – ohne Aufspannplatte – 460 – 650 mm mit Aufspannplatte – 340 – 530 mm Zulässige Hubzahl in Relation zum Materialvorschub: Bei 300 mm = 40 – 60 Hübe Bei 150 mm = 120 Hübe Gesamtantriebsleistung ca. 40 kW – 500 V – 50 Hz Gewicht ca. 24.000 kg Zubehör / Sonderausstattung: Hjdpfx Afjt Hwz Ns Ton • FREI / WEINGARTEN Richtapparat Typ AMR 04 So mit nachfolgender Überkopf-Schlaufensteuerung (platzsparend, keine Grube erforderlich). Das Blechband läuft über die Abrollhaspel zum einseitigen Zangenvorschubgerät und anschließend in die Presse. • HEILBRONN Coilabwickelgerät Typ HAEMH 4000/500 S #204753 mit Coilablageplatz, von dem das Coil aufgenommen und gespannt wird. Danach Rückführung in die Ausgangsposition. Max. Coilgewicht 4.000 kg, max. Coil-Ø 1.500 mm, max. Bandbreite 500 mm. • Angebauter Richtapparat für max. Blechbreite 400 mm, Blechführung in der Breite verstellbar, Blechdicke 1 – 3 mm einstellbar. • Automatische Öl-Umlaufschmierung mit Überwachung. • Hydraulische Überlastsicherung, motorische Stößelverstellung 125 mm. • Förderband für die fertigen Pressteile, separater Schaltschrank – modernisiert 1990 –.

Stanje: rabljeno, Leto izdelave: 1970, številka stroja/vozila: 120895, Pressing force: 63 t Throat depth: 250 mm Stroke: 8 - 100 mm Hedpefx Hv Hjfx Af Tjn Strokes per minute: 120 s.p.m. Table: 715 x 500 mm Installation height: 330 mm Ram adjustment: 63 mm Clamping plate: 700 x 480 mm Pass-through opening in the table: 240 mm Pass-through opening in the clamping plate: 110 mm Ram clamping surface: 450 x 280 mm Machine weight approx.: 5.5 t Required floor space approx.: 1.2 x 1.7 x 2.7 m Single-column eccentric press in tiltable design, via hydraulic adjustment system, tiltable in 4 stages, pass-through opening to the rear (325 x 500 mm) or downward (360 x 160 mm), with central lubrication via hand pump, additional clamping plate 700 x 480 x 850 mm, two-hand operation, foot release can be configured, operation mode selector for continuous or single stroke setup, emergency stop switch, piece counter, various accessories.

Stanje: rabljeno, Leto izdelave: 1953, številka stroja/vozila: 66/53, Pressure: 36 t Outreach: 280 mm Hsdpfscxxwcex Af Tjn Stroke: 6 - 82 mm Ram adjustment: 51 - 13 mm Strokes: 6-82 strokes/min Table surface: 530 x 480 mm Through-opening in clamping plate: Ø 140 mm Clamping plate thickness: 70 mm Ram surface: 200 x 200 mm Clamping plate: 530 x 450 mm Space requirement approx.: 1.0 x 1.65 x 1.80 m WEINGARTEN Flywheel Eccentric Press with UVV safety guard, manufacturer DITTMER PSK 103/B, year of manufacture 1978, additional clamping plate 530 x 450 mm (clamping plate thickness: 70 mm), manual central lubrication, height-adjustable table (+/- 180 mm)

Stanje: rabljeno, Leto izdelave: 1971, Tlak 100 t Prehodna širina . mm Hod . mm Dohodni pomik 45 mm Varnostna razdalja 208 mm Dohodni čas 149 s Tehnični podatki so podatki proizvajalca oz. lastnika in zato nezavezujoči. Pridržujemo si pravico do predhodne prodaje; veljajo izključno naši splošni pogoji poslovanja in prodaje. O nas Hodeyuttropfx Af Tjn več kot 400 lastnih strojev na zalogi več kot 15.000 m² skladiščnega prostora, žerjavna zmogljivost 70 t več kot 10.000 artiklov dodatne opreme za vašo delavnico Če želite prodati stroje, proizvodne linije ali vaše podjetje, nas kontaktirajte. Več ponudb najdete na naši spletni strani. Ogled je mogoč po dogovoru. Veselimo se vašega obiska. Ekipa Markus Hirsch

Stanje: rabljeno, Leto izdelave: 1987, Premer vrtenja: 400 mm Dolžina struženja: 600 mm Premer nihanja: 600 mm Vrtina vretena: 73 mm Tehnični podatki so navedeni po podatkih proizvajalca oziroma upravljavca in zato za nas niso zavezujoči. Pridržujemo si pravico do vmesne prodaje; izključno veljajo naši splošni pogoji poslovanja in prodaje. O nas več kot 400 lastnih strojev na zalogi več kot 15.000 m² skladiščnih površin, kapaciteta žerjava 70 t več kot 10.000 kosov dodatne opreme za vašo delavnico Če želite prodati stroje, proizvodne linije ali vaše podjetje, nas kontaktirajte. Hodoyutruspfx Af Tsn Dodatne ponudbe najdete na naši spletni strani. Ogledi so možni po dogovoru. Veselimo se vašega obiska. Ekipa Markus Hirsch

Stanje: Okvarjen nosilec rezervnih delov (rabljen), Leto izdelave: 1974, številka stroja/vozila: 121645, Funkcionalnost: nefunkcionalno, stiskalna sila: 63 t, širina mize: 650 mm, višina mize: 910 mm, skupna masa: 4.000 kg, potrebna višina: 2.800 mm, zahteva za prostor dolžina: 1.200 mm, potrebna širina: 1.900 mm, nastavitev hoda: 63 mm, Ekscentrična stiskalnica ima poškodbo sklopke – trenutno ni uporabna. Brez na slikah nameščenega stebričastega ogrodja. Hedpfx Afsx D Tngj Ten

Leto izdelave: 1994, stanje: pripravljen za uporabo (rabljen), Tlačna sila: 3150kN, dimenzije mize X/Y: 2500mm/1600mm, fiksni hod bata: 280mm, število hodov: 20–80 hodov/min, teža: cca 68.000kg. Vključno s transferno in tračno napravo Dreher. Krmilje je okvarjeno. Dokumentacija na voljo. Ogled na lokaciji možen. Hjdpfxsxtff As Af Ten

Leto izdelave: 1965, stanje: rabljeno, Pressure: 150 t Outreach: 550 mm Stroke: 10 - 140 mm Table surface: 1180 x 980 mm Strokes per minute: 40 Installation height: 500 mm Ram surface: 1040 x 800 mm Ram adjustment: 70 - 150 mm Pin hole (depth x diameter): 435 x 55 mm Power requirement: 15 kW Hjdscubatepfx Af Ten Machine weight: approx. 12 t Space requirements: approx. 3 x 1.7 x 3 m - with additional brake - ram weight compensation - motorised ram adjustment - central grease lubrication (manual) - break plate - table clamping plate - safe for manual feeding operations - operating manual available

Leto izdelave: 1971, stanje: rabljeno, Pressure: 160 t Throat depth: 440 mm Stroke: 20 - 120 mm Table size: 1050 x 750 mm Strokes: 42 and 62 strokes/min Ram area: 800 x 500 mm Pin hole (depth x diameter): 85 x 50 mm Pass-through opening in table: 355 mm Hsdpfx Aocyc Adsf Tjn Installation height (stroke down, ram adjustment up): 455 mm Ram adjustment: 100 mm Machine weight: approx. 11.2 t *with gear train *with fixed work table *with enlarged table and ram area *with enlarged throat depth *with pass-through in the frame *with ram weight compensation The machine is currently being overhauled and the clutch is being disassembled for this purpose. (The press is currently in a disassembled state)

Stanje: rabljeno, Leto izdelave: 1996, Pressure: 80 t Outreach: 320 mm Stroke: 6 - 118 mm Strokes per minute: 30 - 80 spm Ram adjustment: 70 mm Table surface: 830 x 610 mm Ram surface: 650 x 400 mm Gap depth (to rear): 630 mm Total power requirement: kW Hodpfx Aotycdkof Tsn Machine weight approx. 8.1 t Space requirement approx. W 1.2 x D 1.9 x H 3.3 m Equipment: - with gear-driven wheels - fixed table - automatic stroke adjustment - automatic ram adjustment - hydraulic overload protection - ejector - central grease lubrication - cover plate for drop-through hole - stepless speed control via frequency converter - The machine will be mechanically inspected and overhauled in our facility, and will receive a new control cabinet with safety control and touchscreen - Current UVV inspection with braking time measurement

Stanje: rabljeno, Technical Details: Total Rated Force: 1,000 t Clamping Area (left-right): x mm Clamping Area (front-back): x mm Table Area: 4,500 x 2,400 mm Total Rated Force: Presses 2-3-4-5 – 1,000 t each Table Area: Presses 2-3-4-5 – 4,500 x 2,200 mm Last complete overhaul in 2021, consisting of: Blank Automation, Manufacturer: Neuhäuser, Type: 19711505-00, Year: 2000, SN 367080, Material No. FK35835, with integrated blank washing system by AMTEC, oiler, pallet loading/unloading station, pallet change trolley, control system by Siemens, system no. Blank gripper, system no. 0608300, mounted on press Double-column press (MK11165), Manufacturer: Weingarten, Type: ZS 1600.48, Year: 1965, Order no. 324/64, double action, press force approx. 1,000 t, stroke 900 mm, stroke adjustment 350 mm, distance between table surface and slide 2,150 mm, blankholder force 600 t, stroke 700 mm, adjustment 350 mm, clear height between table and blankholder 1,940 mm, max drawing depth 300 mm, strokes/min 12, column spacing approx. 5,000 mm, table size approx. 4,500 x 2,400 mm, control by Siemens, Type S7 Blank automation, Manufacturer: ABB, consisting of: 2 blank grippers, mounted on press, system nos. 0608400, 0608500, blank turner and tilting station by ABB, movable, system no. Double-column press (MK11166), Manufacturer: Schuler, Type: P4E2 SQB 1000/4.5/0.7, single action, press force approx. 1,000 t, slide stroke 700 mm, slide adjustment 400 mm, strokes/min 14, distance between uprights 4,560 mm, table size 4,500 x 2,200 mm, slide area 4,500 x 2,200 mm, distance between table and slide surface 1,550 mm, draw device 300 t, stroke 250 mm, system no. 0186200, control by Siemens, Type S7 Blank automation, Manufacturer: ABB, consisting of: 2 blank grippers, system nos. 0608600, 0608700, with movable stacking and tilting table, system no. Double-column press (MK11167), Manufacturer: Schuler, Type: P4E2 SQB 1000/4.5/0.7, single action, press force 1,000 t, slide stroke 700 mm, upright spacing 4,560 mm, slide adjustment 400 mm, strokes/min 14, table area 4,500 x 2,200 mm, slide area 4,500 x 2,200 mm, distance between table and slide surface 1,550 mm, system no. 0186300, control by Siemens, Type S7 Blank automation, Manufacturer: ABB, consisting of: 2 blank grippers, mounted on press, system nos. 0608800, 0608900, with blank stacking and tilting table, system no. Double-column press (MK11168), Manufacturer: Schuler, Type: P4E2SQB 1000/4.5/0.7, single action, press force 1,000 t, slide stroke 700 mm, upright spacing 4,560 mm, slide adjustment 400 mm, strokes/min 14, table area 4,500 x 2,200 mm, slide area 4,500 x 2,200 mm, distance between table and slide surface 1,550 mm, system nos. 0186300, 0186400, control by Siemens, Type S7 Press automation, Manufacturer: ABB, consisting of: 2 blank grippers, mounted on press, system nos. 0609000, 0609100, with blank stacking and tilting table, system no. Double-column press, Manufacturer: Krup, Type: DPQV4-1000, SN 2602, Year: 1968, single action, press force 1,000 t, slide adjustment 400 mm, slide stroke 700 mm, strokes/min 14, distance between table and slide surface 1,550 mm, upright spacing 4,560 mm, table area 4,560 x 2,200 mm, slide area 4,560 x 2,200 mm, main drive 140 kW, Year: 1968, system no. 0186500. Hodpfxex Ag Azs Af Ten

Stanje: rabljeno, Technical details: Total nominal force: 800 t Clamping area (left-right): x mm Clamping area (front-back): x mm Table surface: 3200 x 2200 mm Total nominal force: 2-3-4-5- press - 600 t each Table surface: 2-3-4-5- press 3100 x 1900 mm Last overhauls: 2010/2020, scope of supply consists of: Blank washing unit, manufacturer: Neuhäuser, with 6 cleaning rollers, system no. 0905200, control system by Siemens Blank automation, manufacturer: Neuhäuser, type 19711594-00-0, year 2002, SN 369507/002, system no. FK42282, consisting of: destacking device, oiler, pallet changer, empty pallet ejection Gripper automation, manufacturer: Olofström, type Doppin Loader 2000, SN 37719974886, system no. ... Double-column press, manufacturer: Weingarten, type ZS 1200.34, year 1972, Hodex Ag Epepfx Af Ten Order no. 113 021, press force approx. 800 t, double action, stroke 850 mm, stroke adjustment 350 mm, height between table surface and draw slide 2,150 mm, blankholder force 400 t, stroke 600 mm, adjustment 350 mm, clear height between table and blankholder 1,950 mm, max. drawing depth 300 mm, strokes per minute: 14, control system by Siemens, operator panel by Baluff, table size 3,200 x 2,200 mm, system no. ... Gripper automation consisting of: 2 blank grippers, press-mounted, system nos. 0602400, 0602500, with turntable and turning device Double-column press, manufacturer: Raskin, type 6031AE4, year 1979, Order no. 7810011, single action, press force approx. 600 t, strokes per minute: 18, slide stroke 700 mm, distance between bolster platen and slide 1,200 mm, slide adjustment 400 mm, clear width between columns 3,220 mm, slide base 3,100 x 1,900 mm, die mounting surface 3,260 x 1,900 mm, drawing cushion, pressing force 125 t, stroke 0-200 mm, control system by Siemens Press automation consisting of: 2 blank grippers, press-mounted, turn and rotation table, system no. 0602600 Double-column press, manufacturer: Raskin, type 0631AE4, year 1979, Order no. 7810012, single action, press force approx. 600 t, strokes per minute: 18, slide stroke 700 mm, distance between bolster platen and slide 1,200 mm, slide adjustment 400 mm, clear width between columns 3,220 mm, slide base 3,100 x 1,900 mm, die mounting surface 3,260 x 1,900 mm, drawing cushion, pressing force 125 t, stroke 0-200 mm, control system by Siemens, system no. ... Blank automation consisting of: 2 grippers, system nos. 0602800, 0602900, with tilting and turning table Double-column press, manufacturer: Raskin, type 6031AE4, year 1979, Order no. 7810013, single action, press force approx. 600 t, strokes per minute: 18, slide stroke 700 mm, distance between bolster platen and slide 1,200 mm, slide adjustment 400 mm, clear width between columns 3,220 mm, slide base 3,100 x 1,900 mm, die mounting surface 3,260 x 1,900 mm, drawing cushion, pressing force 125 t, stroke 0-200 mm, control system by Siemens Blank automation consisting of: 2 blank grippers, press-mounted, turn and rotation table, system no. 0603000 Double-column press, manufacturer: Raskin, type 06031AE4, year 1979, Order no. 7810014, press force approx. 600 t, strokes per minute: 18, slide stroke 700 mm, distance between bolster platen and slide 1,200 mm, slide adjustment 400 mm, clear width between columns 3,220 mm, slide base 3,100 x 1,900 mm, die mounting surface 3,260 x 1,900 mm, drawing cushion, pressing force 125 t, stroke 0-200 mm, control system by Siemens 6-axis robot, manufacturer: Kuka, type KR 100 R3500 Press, year 2014, SN 674326, weight

Stanje: rabljeno, Leto izdelave: 2018, Fitting support included Working width: 3000 mm Swivelling: no Eder + Mueller sash mounting table ----- Sale on behalf of customer, ex customer location. Machine was in use until recently, now located at customer's warehouse. Previous hardware: Maco Multi Matic (other hardware types possible) Technical manufacturer’s description: ----- Table height and working angle mechanically adjustable with permanently mounted fitting support Sash mounting table, length 3,000 mm, with fixed fitting support Hjdpexmamujfx Af Ton Support surface with felt covering 12 swivelling counter holders for suspending the sashes Hardware scanning for centred and constant gear position 1 shelf, 4-fold air connection with automatic special screwdriver with pneumatic depth stop 6-position turret stop for different screw depths pneumatic height adjustment for 6 screw levels automatic screw feed manual insertion for second screw length Dimensions: Length approx. 3,500 mm, depth approx. 2,200 mm, height approx. 2,100 mm ----- Price for the above-mentioned machine on request! ----- (technical data according to manufacturer – no guarantee!) All prices quoted are net, plus statutory VAT.

Stanje: rabljeno, Leto izdelave: 1980, Pressing force 1,250 kN Stroke adjustable from 20 to 140 mm Hsdpfxsrm Ntpj Af Ten Stroke rate 70 strokes/min. Further data and images available on request The press is currently non-operational and requires mechanical and electrical overhaul.

Stanje: rabljeno, Plunger, ram for an eccentric press, single-column press, punching machine, single-column eccentric press, eccentric press, single-column press -Spare part: from a Weingarten eccentric press -Stroke adjustment: 10–80 mm -Ram surface: 320 x 65 mm -Ram mount: Ø 40 mm -Ram adjustment thread: M64 x 6 mm -Ram adjustment ball head: approx. 92 mm Hjdpfed Nzg Rjx Af Tjn -Dimensions: 875/320/H190 mm -Weight: 164 kg -Press force unknown

Leto izdelave: 1978, stanje: rabljeno, Pressure: 80 t Throat depth: 280 mm Stroke: 8–112 mm Strokes per minute: 55 / 82 spm Stroke adjustment: 80 mm Table area: 800 x 570 mm Ram area: 560 x 355 mm Table through-hole diameter: 280 mm Table height: 800 mm Ram bore diameter: 50 mm Total power requirement: 7.5 kW Machine weight approx.: 6 t Hjdpfx Afslp U Ddj Ton Space requirements (WxDxH): approx. 1600 x 2200 x 3000 mm Gear drive Balance cylinder Friction clutch Central lubrication Approved for manual loading/unloading

Leto izdelave: 1967, stanje: rabljeno, Pressure: 63 t Throat depth: 280 mm Stroke: 8-100 mm Strokes per minute: 56/84 spm Ram adjustment: 63 mm Table area: 620 x 500 mm Ram area: 310 x 260 mm Clear opening in table: Ø 250 mm Table height: 850 mm Bore in ram: Ø 40 mm Machine weight: approx. 4 t Space required: approx. 1200 x 1900 x 2800 mm Manual central lubrication Mechanical overload protection in ram Front counter bearing Friction clutch Hedpfjlp U Emox Af Tjn Foot pedal operation Approved only for safe tooling

Leto izdelave: 1966, stanje: rabljeno, Pressure: 100 t Throat depth: 410 mm Stroke: 8-112 mm Stroke rate, double strokes/min: 55 / 82 Slide adjustment: 80 mm Table area: 950 x 700 mm Slide area: 700 x 450 mm Through hole in table Ø 280 mm Table height: 850 mm Ram bore Ø 50 mm Machine weight approx. 7.0 t Space requirement approx. 1400 x 2200 x 2800 mm Friction clutch Mechanical overload safety device in the ram Balancing cylinder Two-hand operation Front counter bearing Manual central lubrication system Hjdjlp U D Eopfx Af Ten Only approved for use with safe tools

Stanje: rabljeno, Leto izdelave: 1983, Pritisk 100 t Izravnava 375 mm Hod 20-125 mm Število hodov 60 hodov/min Regulacija bata 80 mm Delovna površina mize 920x660 mm Površina bata 700x450 mm Prebojna odprtina v mizi Ø90 mm Oznaka v batu Ø50 mm Teža stroja cca 8 t Potrebna površina cca 2100x1500x3300 mm Pnevmatična sklopka-zavorna kombinacija Izravnalni valj bata Hjdpfjxh Swhex Af Tsn Motorizirana regulacija bata Hidravlično varovalo pred preobremenitvijo v batu Centralno mazanje z mastjo Sprednji ležaj

Leto izdelave: 1962, stanje: rabljeno, Pressure: 10 t Hodpfx Afslp U Nbj Ton Reach: 170 mm Stroke: 6–60 mm Stroke rate: 160 strokes/min Ram adjustment: 40 mm Table area: 420 x 320 mm Ram area: 180 x 140 mm Pass-through opening in table: Ø 120 mm Table height: 850 mm Ram bore: Ø 32 mm Machine weight: approx. 1 t Space requirement: approx. 1200 x 1200 x 1900 mm Two-hand operation Manual central grease lubrication Counter bearing Mechanical rupture plate in ram Manual ram adjustment

Leto izdelave: 1977, stanje: rabljeno, Pressure: 100 t Throat depth: 410 mm Stroke: 8-112 mm Strokes per minute: 55/82 spm Ram adjustment: 80 mm Table surface: 950x700 mm Ram surface: 700x450 mm Pass-through opening in table: Ø 280 mm Table height: 800 mm Total power requirement: 11 kW Machine weight approx.: 7.5 t Space requirements (WxDxH): approx. 1600x2200x3000 mm Hodpfxelp U Das Af Tjn Features: - Gear drive - Counterbalance cylinder - Friction clutch - Central lubrication - Approved for manual feeding operations