Ingersoll Stroji Za Elektroerozivno Rezkanje / Elektroerozivna Rezkanje nakup rabljenega (94.261)

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2016, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 7024NL256160890J, največja hitrost vretena: 10.000 obr/min, pomik osi Y: 200 mm, največja hitrost vrtenja: 4.000 obr/min, Premer palice (maks.): 80 mm, razdalja med središči: 700 mm, Condition: Ball screw drives on X, Y, and Z axes new + major maintenance package carried out approx. one year ago (machine has not been in use since)! TECHNICAL DETAILS Distance between centers: 700 mm Spindle speed range: 1 - 4,000 rpm Tool spindle speed: 10,000 rpm Bar diameter: 80 mm Ljdpfsy A Icrsx Al Njaa Mount: MT5, live center Without center point Turret: 12 stations, bolt-on turret Projection length for driven tools: ±100 mm Assemblies: Integrated MK4 bearing for center point Chip and coolant system Scraper-type chip conveyor with magnetic separation, discharge height approx. 1,000 mm Coolant system: increased pressure 5 bar, pump 800 W, flow rate 20 l/min Coolant shower at chuck, incl. high-performance pump Compressed air release system for toolholder sleeves Compressed air release system for tailstock center point Line filter for coolant system MACHINE DETAILS Control: M730UM, CELOS - ERGOline Touch Total power: 18.5 / 18.5 / 15 kW (25% DC / 50% DC / continuous) Tool spindle power: 5.5 / 5.3 / 7 kW (3 min / 5 min / continuous) EQUIPMENT Interface for oil mist separator (diameter: 150 mm) Signal light: red, yellow, green, blue EtherNet/IP interface for automation Robot interface for DMG Mori Seiki gantry robot Transformer: 45 kVA, three-phase autotransformer X-axis direction ISO Note: The machine is supplied without chuck, tool presetter and workholding devices.

Stanje: rabljeno, Leto izdelave: 2023, Funkcionalnost: popolnoma funkcionalen, stružna dolžina: 1.500 mm, premer struženja: 500 mm, izvrtina vretena: 80 mm, pomik osi Y: 260 mm, • Fanuc 31i-B5 CNC control • 15" color LCD display • Y-axis travel: 260 mm (+/- 130 mm) • B-axis swivel range: 230° (+/- 115°) • Milling spindle drive power: 15/22 kW • Maximum milling spindle speed: 12,000 rpm • Main spindle drive power: 22/26 kW • Main spindle speed: 4,000 rpm • Spindle nose: A2-8 • Main spindle bar capacity: 80 mm • Counter spindle drive power: 15/22 kW • Counter spindle speed: 4,000 rpm • Spindle nose: A2-8 • Direct encoder feedback on X1, Y1, Z1-axis • 12-station turret • Milling spindle with B-axis • Y-axis • HOWA clamping cylinder and chuck (L) • HOWA clamping cylinder and chuck (R) • 2 C-axes incl. disc brake • M-function open/close chuck • Foot switch for chuck • Coolant system with 4 pumps • Automatic central lubrication • Automatic machine shut-off • Right-side hinge conveyor • LED work area lighting • 1 set of machine documentation • CE specification FANUC 19" HMI Touch Panel iH Pro (instead of standard 15" touch panel) Tool holder: Capto C6 Tool positions: 80 Tool monitoring system Raku Raku 1. Tool management 2. Load monitoring 3. Compensation management 4. Operating information KITAGAWA power chuck 3-jaw BB210 • Bore: 81 mm • Jaw stroke (diameter): 8.8 mm • Base jaw serration: 1.5 mm x 60° • Max. speed: 4,500 rpm KITAGAWA power chuck main spindle Hydraulic hollow clamping cylinder SS1881K • Bore: 81 mm • Piston stroke: 25 mm • Max. speed: 4,800 rpm SMW power chuck Hydraulic solid clamping cylinder SIN-S 125 • Max. pressure: 70 bar • Pulling force at 40 bar: 41 kN • Max. speed: 6,000 rpm Bar feeder interface incl. "Optional block skip" Three-color signal lamp Manual tool setter Integrated parts unloader for counter spindle • Max. diameter: 80 mm • Max. length: 200 mm • Max. weight: 3 kg Automatic work area door Lodpfewpkp Iox Al Neaa Band switch for automatic work area door 120 kVA transformer TMX-4000ST Machining condition selecting function Kinematic setup procedure Kinematic adjustment FANUC via iHMI - Renishaw touch probe RMP600 - Macro software - Amplifier - C6 holder - Calibration sphere - Interface Gear skiving function 3D collision avoidance system KNOLL KF300/1800 70 bar with alpha 9-E inline cooler - Clean water tank: 1,800 l capacity - 1 x LP pump: 150 l/min / 3.1 bar - 2 x MP pumps: 40 l/min / 7 bar - 1 x HP pump: 20 l/min / 70 bar - 1 x frequency converter for HP pump - 1 x dual switching filter - 1 x alpha 9-E inline cooler - 7 pressure stages KNOLL scraper conveyor 500 K-1 Conveying height: 1,700 mm Discharge height above floor: 1,150 mm

Stanje: zelo dobro (rabljeno), Typ: ZF 2 Hersteller: WAFIOS Baujahr: - Seriennummer: 2.1062.013 Leistung: 45 Schussdrähte/min = 3,712 m Liniendrahthauptdurchmesser: Kern: 1,6 mm / Außendurchmesser: 2,6 mm Schussdrahtdurchmesser: Kern: 2,6 mm / Außendurchmesser: 3,6 mm Zugfestigkeit: 600 – 700 N/mm² Anzahl der Verdrillungen der 3 Liniendrähte: Wellensteigung: 19,14 mm Liniendrahtabstand: 153 mm Schussdrahtabstand: 82,5 mm Ledpfx Alewr Akco Nsaa Max. Flechthöhe: 1.250 mm Zustand der Maschine(n): Gebraucht, demontiert

Leto izdelave: 1977, stanje: delavnici obnovljeno (rabljeno), Tehnični podatki: Obseg žice: 2–10 mm Kapaciteta: 15–25 prečnih žic / min Lsdpfolpf Rksx Al Njaa Širina mreže: 10x10 mm – 100x100 mm Delovna širina: maks. 2.500 mm Moč motorja: 7 kW Stroj je bil v celoti obnovljen leta 2022

Stanje: dober (rabljeno), Leto izdelave: 2002, Tehnične podrobnosti: - Leto: 2002 - Kapaciteta: 20 m2/h - Maksimalna širina mreže: 1000 mm - Obseg premera žice: 2 mm - 5 mm Linija vključuje: - Mehanski odvijalec žice Lsdpfx Alokuy Sbe Njaa - Aparat za valovljenje žice (crimping machine) - Tkalski stroj za mreže s hidravličnim agregatom

Stanje: novo, Bending length: 3100 mm Sheet thickness: 8 mm Top roll diameter: 230 mm Loded Ab Tgepfx Al Nsaa Technical specifications: - Hardened and polished rolls - Frame made entirely of ST-52 steel - Conical bending device - Digital readout for side rolls - Portable control console - Rolls are mounted with bearings - Top roll cover hydraulically openable and closable via control panel - All rolls driven by hydraulic motor and planetary gearbox - Side movements hydraulically powered Options: - Variable rotation speed EURO 4,682 - Material feed table on request - Oil cooler EURO 1,040 - Central support EURO 8,250 - Side supports EURO 7,070 We have numerous references!

Stanje: novo, Dolžina pločevine: 2600 Debelina pločevine: 6 Premer zgornjega valja: 190 Stranski valj: 170 Predgib: 4 Motor: 3 Dimenzije (D x Š x V): 4450 x 1080 x 1160 Teža pribl.: 3350 Ljdpfx Aod Ab Tnjl Njaa Tehnični podatki: - Kaljeni in polirani valji - Celotno telo iz jekla ST-52 - Konusna upogibna naprava - Digitalni prikaz za stranska valja - Prenosna kontrolna plošča - Valji montirani na ležajih - Zgornji pokrov valja, hidravlično odpiranje in zapiranje preko kontrolne plošče. - Vse valje poganja hidravlični motor in planetni menjalnik - Stranske pomike poganja hidravlika Možnosti: - spremenljiva rotacijska hitrost EURO 4.682,-- - Tabela za dovod materiala na zahtevo - Oljni hladilnik EURO 1.040,-- - Sredinska podpora EURO 8.250,-- - Stranske podpore EURO 6.600,-- Imamo zelo veliko referenc!

Stanje: novo, Bending length: 4100 mm Sheet thickness: 9 mm Top roll diameter: 330 mm Technical specifications: - Hardened and polished rolls - Complete frame made of ST-52 steel - Conical bending device - Digital display for side rolls - Portable control panel - Rolls mounted with bearings - Top roll cover, hydraulically opened and closed via control panel Lajdpfx Ajd Ab S Hjl Noa - All rolls driven by hydraulic motor and planetary gearbox - Lateral movements driven hydraulically Options: - Variable rotation speed: EUR 4,682 - Material feeding table on request - Oil cooler: EUR 1,040 - Central support: EUR 13,600 - Side supports: EUR 10,250 We have numerous references!

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2004, Funkcionalnost: popolnoma funkcionalen, vpenjalna sila: 2.157 kN, Brez minimalne cene – zagotovljena prodaja najvišji ponudbi! TEHNIČNE PODROBNOSTI Zapiralna sila: 220 t Premer polža: 55 mm + 40 mm Največji volumen vbrizga: 618 cm³ + 251 cm³ PODROBNOSTI O STROJU Vpenjalna plošča: 960 x 830 mm Minimalna višina za vgradnjo orodja: 320 mm Maksimalna višina za vgradnjo orodja: 730 mm OPREMA EC100/A03 Opomba: Ob nakupu več artiklov z iste lokacije (glejte ponudbe spodaj) bodo veljali nižji stroški za demontažo in nakladanje. Ledpfx Aey Exdxol Njaa

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2005, - RABLJEN - STROJ ZA UPIGANJE CEVI OSÍ: 3 MAKSIMALNI PREMER CEVI: 30 x 2 mm DELOVNA DOLŽINA: 3000 mm HITROST POZICIONIRANJA OSI X: 900 mm/s HITROST UPIGANJA OSI Y: 200 °/s HITROST ROTACIJE OSI Z: 360 °/s Lodpfx Aevhc Uuol Noaa NAJVEČJI POLMER UPIGANJA: 20 DO 170 mm KRMILNA ENOTA: DNC800

Stanje: novo, Shaft diameter: 180 mm Upper roll diameter: 60 mm Lower roll diameter: 50 mm Working speed: 5 m/min Motor power: 3 kW Length: 1200 mm Width: 850 mm Height: 1200 mm Approx. weight: 1000 kg Technical Data: - Welded steel frame construction - 3 driven rolls - Hardened and ground shafts made from high-strength special steel - Rolls are hardened and ground - Horizontal and vertical working positions - Hardened standard rolls - Mobile control panel - Angle side guide rollers - Equipped with brake motor for precision bending - Digital displays (2 units) Options: - STANDARD digital display - NC unit, 7" screen, EURO 9,000 HPK 50 File Type Size Min. Dia Notes 1 60x10 20x5 500 250 Standard Rolls 2 80x20 50x5 500 250 Standard Rolls 3 32x32 12x12 400 250 Standard Rolls 4 Ø35 Ø10 350 250 Optional Rolls 5 Ø60x2 Ø15x1.5 600 200 Optional Rolls 6 2”x3.9 1/2”x2.7 400 200 Optional Rolls 7 50x25x3 20x15x2 450 250 Optional Rolls 8 45x3 20x2 600 300 Optional Rolls 9 60x60x6 30x30x4 650 350 Optional Rolls 10 50x50x5 30x30x4 550 350 Optional Rolls 11 60x7 20x3 550 250 Standard Rolls Lajdpfsd Ab H Nox Al Nea 12 50x6 20x3 500 250 Standard Rolls 13 60x7 20x3 500 250 Standard Rolls 14 UPN 80 UPN 30 600 250 Optional Rolls* 15 UPN 65 UPN 30 600 250 Standard Rolls* * Special washer (spacer) may be required / Only with special beam bending attachment • Capacities specified for 260 N/mm² plate yield strength

Stanje: novo, Sheet thickness: 10 mm Bending length: 3100 mm Top roller diameter: 270 mm Dimensions (L x W x H): 5600 x 1450 x 1600 mm Pre-bending capacity: 8 mm Motor: 11 kW Lower roller diameter: 250 mm Side roller diameter: 210 mm Technical Data: - Hardened and polished rollers - Complete frame made from ST-52 steel - Symmetrical 4-roller arrangement - Hydraulically operated top cover for easy material removal - Digital display for lower and side roller positions - Hydraulic adjustment - Top and bottom rollers driven by hydraulic system and gearbox - Vertical movement of lower roller hydraulically powered - Mobile control panel - CE-compliant Options: Lodjd Ab R Sspfx Al Noaa | Description | Quantity | Net price (€) | |-----|-----|-----| | Heating + cooling | 1 | 11,477 | | Infinitely variable speed | 1 | 3,323 | | Material feed table 1000 × 2000 – 1 pc. | 1 | 2,414 | | Central support | 1 | 15,857 | | Preparation for central support | 1 | 1,888 | | Side supports left and right | 1 | 5,020 | | Preparation for side support (instead of standard) | 1 | 1,923 | | CNC-CS6 control system | 1 | 18,200 | | NC-CS6 control system | 1 | 7,721 | | Ejection system | 1 | 13,020 |

Stanje: rabljeno, Leto izdelave: 2001, obratovalne ure: 38.850 h, vpenjalna sila: 25 kN, delovna prostornina: 20 cm³, tlak vbrizgavanja: 2.500 letvica, skupna masa: 1.800 kg, premer polžastega transporterja: 18 mm, Dobavni pogoji: iz lokacije Lasdpfjyt R S Ajx Al Nea Dobavni rok: po dogovoru Plačilni pogoji: 100% pred prevzemom stroja, neto

Leto izdelave: 2000, stanje: rabljeno, Adjustment of milling fence: via handwheel Milling fence position display: Siko counter Adjustment of milling jaws: handwheel Ledpfx Aloy A Hi Rs Neaa Milling jaw position display: Siko counter

Stanje: rabljeno, številka stroja/vozila: 007906, Položaj 2: Enostranski robni lepilni stroj HOMAG-PROFI KFL 350/10/A3/WZ Lajdpfjwucm Aex Al Noa

Stanje: rabljeno, številka stroja/vozila: 007514, Pozicija 1: Transfer IMA-COMBIMA SYSTEM I Pozicija 2: Robilnik LottoUno IMA-COMBIMA SYSTEM I Pozicija 3: Transfer IMA-COMBIMA SYSTEM I Pozicija 4: Robilnik LottoUno IMA-COMBIMA SYSTEM I Pozicija 5: Transfer IMA-COMBIMA SYSTEM I Pozicija 6: Robilnik LottoUno IMA-COMBIMA SYSTEM I Pozicija 7: Transfer IMA-COMBIMA SYSTEM I Pozicija 8: Robilnik LottoUno IMA-COMBIMA SYSTEM I Lajdpswukznsfx Al Nea Pozicija 9: Transfer IMA-COMBIMA SYSTEM I

Stanje: rabljeno, Number of milling spindles: 4 pcs. Stop: yes / yes / no Tooling: yes Stegherr KSF 2/4 – The modern, practical machine concept for efficient transom production. Years of expertise and a proven, field-tested machine (with over 1,000 units in operation) guarantee you precision at an optimal price-performance ratio. Special emphasis is placed on easy operation and flexibility of the machine. Expansion stage KSF 2/4: Milling units A1, A2, A3 as with the KSF 2, plus milling unit A4. This allows machining of the counterpart without turning, ensuring a tear-free visible surface. Digital stop (sliding carriage, secure and quick readability to 1/10 mm). Foot switch Supplied with tooling as shown in the pictures, plus 2 additional profile cutters (see pictures). Further accessories as shown in the pictures. Compressed air p = 6 bar The following works have been carried out on the machine: Ljdpfx Aoy Dvm Iol Njaa - Maintenance unit replaced - Pneumatic hoses replaced - Plexiglas hood replaced and gas strut for hood open/close replaced - Functional test completed (Technical data provided by manufacturer – subject to verification!)

Stanje: rabljeno, Leto izdelave: 2001, Technical specifications: Turning diameter: 120 mm Turning length: 100 mm Control: Fanuc Main spindle 1 power: 7.5 kW Main spindle 1 speed: 4,500 rpm Main spindle 2 power: 7.5 kW Main spindle 2 speed: 4,500 rpm Distance between spindle noses: 600 mm Turret no. 1 stations / driven: 15/15 Driven tool power, turret 1: 2.7 kW Driven tool speed, turret 1: 4,000 rpm Turret no. 2 stations / driven: 15/15 Driven tool power, turret 2: 2.7 kW Driven tool speed, turret 2: 4,000 rpm Travel paths X/Z, turret 1: 250 / 300 mm Travel paths X/Z, turret 2: 250 / 920 mm Bar capacity spindle 1: 51 mm Bar capacity spindle 2: 51 mm Power chuck: 165 mm Spindle bore spindle 1: 62 mm Spindle bore spindle 2: 62 mm Lasdpfsy D Nxdjx Al Nsa Space requirement approx.: 3700 x 2300 x 3000 mm Machine weight approx.: 5,600 kg Used CNC opposing spindle turning center with gantry loader - 165 mm chuck on both spindles - 2x 15-position turret with driven tools - Automatic workpiece loader with turning station 14-position magazine on the left Maximum part size: Ø 120 x 100 mm Double gripper capacity: 2 x 3 kg

Stanje: novo, Number of milling spindles: 2 pcs. Stop 1: yes Tool: yes Crossbar Milling Machine STEGHERR TYPE KSF-mini includes standard fence with 2 sliding stops, without tools With the KSF-mini, all practical crossbar joints can be produced quickly and precisely. The precise execution is achieved by machining the workpiece on three sides in one clamping operation. The tool drive is provided by two three-phase motors; the workpieces are clamped pneumatically. The profile cutter is designed for the web width. The saw blades, which perform the notching, can be adjusted to the dimensions of the profile cutter by means of intermediate rings. The swivel device has zero backlash. The machine is designed for a maximum workpiece cross-section of 56 x 46 mm. Voltage Europe: 400V (+/-10%)/3Ph/50Hz, USA: 440V (+/-10%)/3Ph/60Hz Other voltages on request. Operating manual in German or English. Table base: EUR 1,070.00 Foot switch: EUR 900.00 Adjustable optics: EUR 130.00 Profile cutter in HM-Wepla version, available in: Ø 5, 7, 9, 11, 13 mm. Price per piece EUR 650.00 1 set of spare indexable insert knives for profile cutter (= 10 pieces): EUR 190.00 HM saw blade, price per piece EUR 170.00 (For a web of e.g. 10 mm, 3 saw blades are required) Setting the machine to customer-supplied tools, price per individual tool EUR 700.00 Packaging in crate (suitable for land transport) EUR 650.00 Packaging on pallet shrink-wrapped (only within Europe, not for air freight) EUR 340.00 Lodpfx Alsyrtzqo Noaa Prices ex works, unpacked, uninsured; for deliveries within Germany plus VAT valid at the time of delivery. (All technical data according to manufacturer, without guarantee!)

Stanje: zelo dobro (rabljeno), Leto izdelave: 2002, Premer kolesa - maks. 350 mm Širina kolesa 230 mm Modul - maks. 8 Modul - min. 1 Krmiljenje Siemens 840 Teža stroja cca 10,5 t Potrebni prostor cca 4,5 x 2,5 x 3,0 m Naprava za nakladanje/razkladanje Lasdey D T Upepfx Al Noa

Stanje: skoraj kot novo (rabljeno), Leto izdelave: 2022, obratovalne ure: 2.085 h, premer struženja: 240 mm, moč vretenovega motorja: 11.000 W, hitrost vretena (min.): 3.200 obr/min, izvrtina vretena: 90 mm, potovalna razdalja osi X: 142 mm, pomik po osi Z: 165 mm, hitro pomikanje X-os: 24 m/min, hitri pomik na osi Z: 24 m/min, največja hitrost vrtenja: 2.500 obr/min, vrsta vhodnega toka: trifazni, skupna višina: 2.700 mm, skupna dolžina: 3.590 mm, skupna širina: 2.610 mm, skupna masa: 5.200 kg, Oprema: dokumentacija / priročnik, vrtilna hitrost brezstopenjsko nastavljiva, Frontalni dvojvretenasti stružniški center. Z dvema vretenoma, dvema revolverskima glavama, z gnanimi orodji in C-osjo, dva linearna robota. Stroj je praktično nov, uporabljali smo ga le 2000 ur. Gre za popolno verzijo stroja, z dvema stranskima podajalnikoma. Vpenjalna puša + 3-čeljustne vpenjalne glave. Verižni transporter. FANUC 0iTD krmiljenje. Stroj je bil kot nov kupljen pri Takisawa zastopniku na Madžarskem (SZIMKER ZRT). RAKU-RAKU MONITOR. Lodsrzq N Uspfx Al Njaa

Stanje: rabljeno, Prodajam rabljene stroje za žago: Lajdpeivg Ipofx Al Noa Dovoz hlodovine, strgalo, dvigalni transporter Poclain mobilni bager, letnik 1987, cca 10.400 delovnih ur Lesena klešča za mobilni bager Walzl sušilna komora za 6 paketov, maks. 1,30x1,30x5,0m; upravljanje NOVO iz leta 2021 razni cikloni za žagovino, skupno 4 kosi Odsesovalni ventilatorji, skupno 3 kosi razni skobelni vreteni, skobeljne glave, 40 mm vreteno Zeno drobilnik za les Vsi stroji so delujoči Več slik in ceno na zahtevo ali po telefonu

Stanje: rabljeno, Leto izdelave: 2007, Premer kolesa - maks. 380 mm Širina kolesa 540 mm Modul - maks. 7 Krmiljenje SINUMERIK 840 D Aksialni hod 600 mm Premer mize 317 mm Hitrost mize 100 obr/min Rezkalna glava - vrtljiva + / - 35 stopinj Pogon rezkalne vretena 27,00 kW Hitrosti rezkala - brezstopenjsko 1500 obr/min Premer rezkala 160 mm Dolžina rezkala maks. 330 mm Hitrosti rezkalne glave maks. 3000 1/min Premer valjčnega rezkala - maks. 160 mm Dolžina valjčnega rezkala - maks. 330 mm Tangencialni hod maks. 300 mm Aksialna hitrost 10.000 mm/min Tangencialna hitrost maks. 3000 mm/min Radialna hitrost 7.500 mm/min Vsebina olja 100 l Laedpsyt Rvhefx Al Nsa Vsebina hladilne tekočine 780 l Hod kontrastebra 540 mm Skupna potrebna moč 50,00 kW Teža stroja pribl. 16,00 t Potreben prostor pribl. 6,00 x 4,50 x V3,50 m za naslednje postopke: aksialno valjčno rezkanje, posamezno rezkanje, rezkanje polžastih koles, poševno rezkanje, ogobljanje; NC-kontrastojalo

Stanje: rabljeno, Funkcionalnost: popolnoma funkcionalen, Maksimalni delovni premer: 2100 mm Velikost mize: 1800 mm Maksimalni modul: 20 Ljdpfsylprfex Al Neaa Teža: 40 ton

Stanje: novo, Clean air extraction / dust extractor Dust tested to H3 standard, residual dust content less than 0.1 mg/m³ Suitable for extracting and separating dry wood and plastic chips High extraction performance with minimal space requirements Maximum output in this class Very quiet operation Designed for commercial use Sturdy and compact housing made of galvanized sheet steel Extraction port easily convertible from left to right, offering flexible use Large maintenance openings Large, mobile chip containers with clamping bracket and chip collection bag Dust extractor is delivered fully assembled, ready for immediate use All models are mobile Filter material made from polyester fleece, aluminum-coated for long service life Filters are antistatic as standard, certified and approved according to Category M-BIA The fan is installed downstream of the filter Extraction motor energy efficiency class: IE3 Nominal airflow: 1,448 m³/h Nominal negative pressure: 2,242 Pa Drive motor power: 2.2 kW, 400 V, 50 Hz Chip collection volume: 2 x 165 l Outer diameter of extraction inlet: 160 mm Filter surface area: 9.21 m² Residual dust content: < 0.1 mg/m³ Maximum sound pressure level: 73 dB(A) Dimensions (L x W x H): approx. 1,618 x 830 x 1,653 mm Weight: approx. 268 kg PM VERSION Lasdjr A Eq Rspfx Al Nsa Automatic filter cleaning with pneumatic system, operating a wiper frame