Zenz Sw 100 nakup rabljenega (26.103)

Stanje: dober (rabljeno), • Tip – FMF 100 • Dvostranski vrtalni stroj • Min. premer: 3 mm • Maks. premer: 300 mm • Hitrost vrtenja: 110 – 4600 vrt/min Bsdpfjuqma Aox Aa Rsli • Spodnji sveder z avtomatskim pomikom, zgornji sveder ročno voden

Stanje: rabljeno, 🧰 Lastnosti izdelka • Stanje: rabljeno blago, glejte slike • Barva: siva • Material: kovina • Zunanje mere: 124 x 83,5 x 97 cm • Nosilnost: 1000 kg • Zložljivost v skladišču: 5000 kg • Teža: 78 kg • Sprednja stran: zložljiva • Dno: kovinsko dno z leseno vložko 💰 Cena 99 € neto brez DDV. • Popust za količino: na zahtevo • Stroški pošiljanja: po Evropi na zahtevo • Dobavni rok: takoj dobavljivo • Ogled in prevzem: možen kadarkoli po dogovoru Bodpfx Aevb T Ewea Rsli Stalno na zalogi več kot 5000 tekočih metrov paletnih regalov različnih proizvajalcev (Spremembe in napake v tehničnih podatkih, informacijah in cenah ter vmesna prodaja pridržane! Glejte naše splošne pogoje, vse cene brez DDV iz skladišča.)

Stanje: novo, Leto izdelave: 2026, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: NVT, vrsta vhodnega toka: Enosmerni tok, trajanje garancije: 24 meseci, skupna masa: 30 kg, polnilna masa (maks.): 30.000 g, vhodna napetost: 220 V, pritisk: 2 letvica, kapaciteta rezervoarja: 30 l, New filling machine / filler suitable for dispensing liquids. Typical applications include: - Milk - Water - Alcohol - Disinfectants - Etc. This is a robust machine operating on compressed air and 220V—truly Plug and Play! It is particularly well-suited for filling small batches. Only a very small compressor is needed to run the machine; we can supply one if required. For optimal performance, we recommend a minimum 12L compressor. The filler features a 1000ml cylinder, allowing a maximum fill of 1000ml per stroke. Multiple strokes can be used for larger volumes, e.g., easily achieving 2500ml by dispensing 2 x 1250ml. The smallest possible stroke is 100ml; any amount between 100ml and 1000ml can be dispensed in a single cycle. We also offer models with cylinders up to 5000ml per stroke. Equipped with a suction hose, the machine can draw liquid directly from a drum or IBC. It comes with both a foot pedal and an automatic mode. In automatic mode, the machine continuously fills, making it easy and quick to process higher volumes. The foot pedal allows the operator to fill at their own pace. Bodpsrivxcofx Aa Reli Depending on the operator and fill volume, the machine can process between 15 and 25 units per minute, making it a very fast solution. Weighing approximately 15-20kg, it can be conveniently placed on a table. Made entirely of stainless steel, this is a high-quality, durable machine. For questions, please email us—we are happy to assist with this or other machines. We also offer a label applicator, which pairs exceptionally well with the filler. We strive to respond within 24 hours, and are also available by phone. We look forward to assisting you on working days between 08:30 and 17:00.

Stanje: rabljeno, Tank capacity (litres) 100 Motorised pumps Up to 2 external per tank Dosing output Max. 50 cc/sec per pump Bjdjvpfhyepfx Aa Rsli Technical remote support

Stanje: zelo dobro (rabljeno), SW 41 Ti je nihajni rotor z vedri, zasnovan za centrifugiranje do šestih epruvet. Uporablja se v pripravljalnih ultracentrifugah Beckman Coulter razredov H, R in S. Rotor ustvarja centrifugalne sile za ločevanje in čiščenje majhnih delcev. Tipične uporabe vključujejo ločevanje RNA, proteinov in subceličnih delcev v raztopini z metodo centrične zonalne centrifugacije. Približna prostornina vzorca na epruveto je 0,5 mL, z gradientno prostornino približno 12,5 mL. Stanje in pripadajoča oprema so prikazani na sliki. Dobro delujoče stanje. Oglejte si tudi naše druge ponudbe. Bsdpexqq Ikjfx Aa Rjli

Stanje: rabljeno, prevoženi kilometri: 106.865 km, moč: 175 kW (237,93 KM), konfiguracija osi: 4x2, barva: bela, voznikova kabina: dnevna kabina, vrsta prenosa: samodejen, vzmetenje: zrak, skupna širina: 25.500 mm, skupna višina: 37.500 mm, dolžina tovornega prostora: 68.000 mm, širina tovornega prostora: 23.000 mm, višina nakladalnega prostora: 5.000 mm, Leto izdelave: 2022, Oprema: ABS, EBS (Elektronski zavorni sistem), klimatska naprava, For inquiries regarding the vehicle, Mr. Seidel will be happy to assist you (via tel.). Bledpsyfr S Iefx Aa Rei Mercedes-Benz Atego 1324 L 4x2 Glass Rack Flatbed with Rear Crane A1K Front axle, 5.3 t, A2P Rear axle, crown wheel 390, hypoid, 9.2 t, A2Y Rear axle, narrow version, A2Z Differential lock on rear axle, A6B Axle ratio i = 4.778, B1B Electronic braking system with ABS and ASR, B1D Electronic air supply unit, medium, B1F Heater, electronic air supply unit, B2C Disc brake on front axle, drum brake on rear axle, B4A Condensate monitoring for compressed air system, B5B Trailer brake, 2-line, C3D Wheelbase 5,360 mm, C5I Mounting parts for flatbed, C6B ZF 8095 steering, C6Y Anti-roll bar, underframe, rear axle, C7H Lateral protection, C8J Splash guards integrated in mudguard, C9P Extended rear frame overhang, 600 mm, D1C Driver comfort suspension seat, D1M Co-driver’s fixed seat, standard, D2V Armrests, both sides, driver seat, D3Q Seat cover, velour, D4B Classic cockpit, D4W Electric windows, both sides, D4Y Side sunblind, driver’s side, D5Y Rubber mats, driver and co-driver side, D6F Air conditioning, D6Y Pollen filter, D7L Overhead storage compartment, 1 compartment, D7Q Raised storage compartment on engine tunnel, D7W Storage compartment behind basic box, D8A Roof hatch/ventilation flap, E0Y Battery cover, E2J Circuit breakers, E3W PSM 2nd generation, E4C Additional functions for body builder, E5A Switch No. 1 for external body electrics, E6A 24 V trailer socket, 15-pin, E6Y Reversing warning system combined with hazard warning, E7F Remote control cable for air suspension, F1P S-cab, F1X S-cab ClassicSpace, 2.30 m, tunnel, F2U ClassicSpace, F4I Cab rear wall with window, F6C Tinted windscreen, F6I Heated front mirror, F6J Main mirror, electrically adjustable, driver’s side, F7V Cab entry, two-step, F8E Central locking system, F8F Comfort locking system, F8V Light sensor, F8W Rain sensor, G0K Drive program economy/power, G1D Transmission G 90-6/6.70-0.73, G5G Mercedes PowerShift 3, I1C Tubeless tires 10 R 22.5 front axle, I4A Wheel configuration 4x2, I5X 13.5-tonner, I6A Flatbed chassis, I6X Air suspension, rear axle, J1A Instrument cluster, 10.4 cm, J1O Digital tachograph, 2nd generation, ADR, J1S Tachograph manufacturer VDO, J2K Speaker, 2-way system, J3N Fleetboard Eco Support, J3V Truck Data Center 7, J5S Radio with USB port and Bluetooth, J8Y Pre-installation for Truck Data Center 7, J9D Pre-installation for toll recording, J9K Universal pre-installation for multimedia use, JKUR AdBlue tank relocated to right, JKVJ Main fuel tank relocated from left to right, K0G 180 l plastic tank, left, K3S 35 l AdBlue tank, K5M Lockable tanks, K5Q Strainer for tank filler neck, K5S Protective cap for AdBlue dosing system, K7L Exhaust system, tailpipe towards vehicle center, L0A Lighting regulation according to UN-R 48.06, L0Y Extended tail light wiring harness, L1C LED daytime running lights, L1H Halogen fog lights, L1Y LED light package, front, with white indicator lenses, L1Z White indicator lenses, L2H Flashing side marker lights, L2P LED clearance lamp, L3E 1 work lamp, rear panel upper, M0Q Noise regulation according to UN-R 51.03 stage 2, M2A Engine OM936, R6, 7.7 l, 175 kW (238 hp), 1000 Nm, M4X Engine version Euro VI, E, M5V High Performance Engine Brake, N0S NA MB 60-2c, MPA deep, N-speed, N6K Transmission lock for PTO, O1X CLCS TL function integration in ASAM, O2L GU vehicle with...

Stanje: kot nova (razstavni stroj), Leto izdelave: 2025, delovna širina: 1.100 mm, najv. debelina pločevine: 100 mm, Serija 32 RB ponuja rešitev za proizvajalce, ki zagotavljajo izdelke v vrhunski kakovosti. Ta visoka kakovost se doseže z večrotacijskim krtačnim agregatom s štirimi abrazivnimi lamelnimi ščetkami, ki enakomerno odstranjujejo robove (odiglujejo) in popolno zaokrožijo robove kovine. Večsmerni rotacijski brusni stroj s krtačami (RB) omogoča enakomerno odstranjevanje robov in fini brus ploščatih kovinskih delov. Postopek omogoča enostransko obdelavo v enem prehodu, pri čemer je površina dela obdelana z brezsmernim površinskim finišem. Opremljeno je z enim ali več brusnimi tračnimi agregati (W) za predhodno odstranjevanje robov in fini brušenje. Bedpfxexw Ikcs Aa Reli - Brusni tračni agregat - Rotacijski krtačni agregat (samokalibrirajoč) - Brusni tračni agregat

Stanje: novo, Leto izdelave: 2024, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 12345, dolžina rezanja (maks.): 7.000 mm, skupna masa: 3.200 kg, vrsta nastavitve višine: električni, skupna višina: 2.800 mm, skupna širina: 2.500 mm, širina rezila žage: 100 mm, korak zobnika: 40 mm, največja širina rezanja: 950 mm, dolžina tračnega lista: 6.000 mm, Ecoline This sawmill was developed based on the BN 110, which has been proven in hundreds of applications over decades. The main frame features an underbeam, making it suitable for heavy logs. The saw is equipped as standard with a joystick for the saw head control. Feed speed is infinitely adjustable and achieved via a dual-sided cable drive. The height adjustment is managed by a two-stage brake motor. This sawmill package includes: 2x log clamps – 1x log hold-down arm 4x vertical stops – 1x manual stop (for short logs) 3x leveling adjustments – 1x powered log turner 3x log lifter arms with 4 sockets 1x debarker – 1x saw blade lubrication 1x water lubrication system Siemens positioning control Basic cut length: 7 m Log passage: 100 cm Ø Cutting width: 95 cm Hydraulic pump: 16 l Standard motor output: 22 kW Standard saw blade width: 100 mm Bledoq Tti Hepfx Aa Rei This is a new sawmill with a chassis. Non-binding offer with delivery time on request. Price applies only within Germany. Export prices available on request.

Stanje: dober (rabljeno), Leto izdelave: 2007, obratovalne ure: 1.000 h, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 141-8300, dolžina rezanja (maks.): 7.000 mm, širina rezila žage: 100 mm, leto zadnje generalne obnove: 2022, Zenz BN 110 S Saw incl. mechanization 22 kW drive motor 7 m cutting length 5 vertical supports 2 log turners (+ 2 mounts) Log lifter 4 level compensators with claws 1 log roller 1 pre-cutter Water lubrication, 20 l tank PLC control Seat mounted on armrests Left: PLC – Right: Joystick Mechanization, year of manufacture 2022, consisting of: Blsdpswhcwhofx Aa Rsi Hydraulic flap frame for removal at the saw with electrically driven roller conveyor Roller conveyor with hydraulic ejectors Small roller track, 4 m All electrical and hydraulic elements can be operated from the operator’s station. Zenz sharpening machine, type AHB No. S - 1012

Stanje: novo, Leto izdelave: 2025, Our SAPI pressure blasting unit type "Mammut" with a 100-liter vessel capacity is suitable for all common blasting media. The blasting pressure can be continuously adjusted from 0.1 to 12 bar via the permanently installed pressure regulator. The unit is also equipped with a fixed-mounted water separator, which removes moisture from the compressed air and prevents the blasting media from clumping due to excessive humidity. For safe operation, our safety cut-off system is included. This system starts and stops the blasting process by actuating the hand lever mounted on the blasting hose. The pressure blasting unit is delivered fully assembled, operational, and space-saving in a mesh box. Only the compressed air supply needs to be connected and the unit filled with blasting media. Transport can be carried out conveniently using a forklift or pallet truck. For protective clothing, spare parts, etc., a lockable aluminum storage box is installed. Scope of delivery includes: - SAPI pressure blasting unit "Mammut 100 L" - 1" pressure regulator, permanently installed - 1" water separator, permanently installed - SAPI safety cut-off system - Blasting media sieve - Cover - 10 m blasting hose ø 25x7 mm, fully assembled - Silicon carbide venturi long nozzle, available in 6 mm, 8 mm, or 10 mm diameter - RED 2 sandblasting helmet - Sandblasting overall (nylon/cotton) - 1 pair of leather blasting gloves - 10 m breathing air hose, fully assembled - SAF breathing air / activated carbon filter - Wear parts kit consisting of: - 100 tear-off visors for RED 2 - 10 inner lenses for RED 2 - 1 blasting hose coupling 25x7 mm nylon - 2 rubber seals for blasting hose coupling - 1 nozzle holder 25x7 mm - Mesh box with blasting hose holder - Lockable aluminum box Technical specifications pressure blasting unit: Bljdpfx Aaowc Ri Is Roi - Precisely adjustable from 0.1 to 12 bar - TÜV-certified with certificate - Rigid 1" piping (internal and external) - Rubber-coated metal cone with rubber seal - Large handhole - Chassis with rubber wheels - Blasting media dosing valve (suitable for all common blasting media) - Capacity: 100 l - Total height: 1,130 mm - Vessel diameter: 490 mm - Overall diameter: 900 mm - Weight: approx. 75 kg Mesh box dimensions: - Length: 1,460 mm - Width: 840 mm - Height: 1,400 mm - Total weight incl. all accessories: 260 kg

Leto izdelave: 2024, stanje: kot nova (razstavni stroj), -Usable internal dimensions: D=970mm H=540mm (other sizes available on request) -Touch screen -Spray pressure: 3 bar -Basket load capacity: 200kg -Tank volume: 210L -Standard equipment: • Oil skimmer • Frame, lid and housing made of stainless steel • Electrically operated, timer-controlled steam extraction • Reinforced stainless steel basket • Stainless steel electric pump Bledpfxef A Nq Ue Aa Rei • Stainless steel filter on the pump suction side • Stainless steel heating elements • Mechanical basket rotation with geared motor • Electrical system IP 65, PLC control (DGT V4) • Automatic water inlet • Safety limit switch monitors lid opening • Stainless steel spray nozzles • Weekly timer for heating and oil separator • Hour meter

Stanje: novo, Leto izdelave: 2023, Funkcionalnost: nepreverjeno, vrsta goriva: električni, barva: temno rdeča, lastna masa: 890 kg, skupna dolžina: 1.970 mm, skupna širina: 1.340 mm, skupna višina: 1.480 mm, delovna širina: 1.700 mm, kapaciteta baterije: 480 Ah, napetost baterije: 48 V, površinska zmogljivost: 16.200 m²/h, izpraznilna višina: 1.470 mm, raven hrupa: 84 dB, kapaciteta rezervoarja: 350 l, Ride-On Sweeper RCM Sweep 100AHB – Powerful unit with high dump up to approx. 147 cm. NEW! The RCM Sweep 100AHB is a modern, battery-powered ride-on sweeper, designed for the efficient cleaning of large areas such as parking lots. It features a hydraulic high-dump system with an unloading height of up to approx. 147 cm – ideal for direct emptying into containers or collection bins. This unit is brand new and unused, previously stored only, and is in perfect, like-new condition. Technical Data & Features - Model: RCM Sweep 100AHB - Year of manufacture: 2023 - Operating hours: 0 h (new) - Drive: 48 V electric battery drive - Working width: approx. 1,700 mm with two side brushes - Area performance: up to 13,940 m²/h - Debris container: 350-litre capacity - High dump system: hydraulic, with unloading height up to approx. 147 cm – ideal for emptying directly into containers or collection bins - Complete with battery and charger Condition: The machine is new, unused, and ready for operation. It has been technically inspected and shows no signs of use. Blsdpfsxw Rnwox Aa Rsi Origin: The unit comes from a bankruptcy auction. This is a genuine RCM product, manufactured in Europe. Country of manufacture: Italy Note: All technical details and descriptions are based on manufacturer information. All details are provided to the best of our knowledge and belief, but without guarantee for completeness, accuracy, or specific properties. The unit is sold as described and inspected, with warranty and liability for material defects excluded. Subject to prior sale, typographical errors, and mistakes.

Stanje: pripravljen za uporabo (rabljen), * Povratni valji: z valji * Za trak: 1000 mm * Valji z dimenzijami: 220 mm x 650 mm x 220 mm * ∅: 89 mm * Cena: 30 € na kos * Na zalogi: 560 kosov. Blodpfxeywl Two Aa Rei

Stanje: pripravljen za uporabo (rabljen), * Povratni valji: z valji * Za trak: 1000 mm * Valji z dimenzijo: 380 mm x 133 mm * Cena: 36 € na kos Bsdpfxoywl Tqo Aa Roli * Na zalogi: 500 kosov.

Stanje: zelo dobro (rabljeno), Leto izdelave: 2022, X-os 550 mm Y-os 450 mm Z-os 375 mm Bledpfx Asxxmmfsa Rei Krmilnik SIEMENS 840D SL Število vrtljajev vretena 1–17.500 min⁻¹ Teža stroja cca 10 t Potrebni prostorski pogoji cca. D 6,30 x Š 3,85 x V 3,70 m Stroj je zasnovan za mešalno trenjsko varjenje Ojačana Z-os (5.000 N) potrebna za varilni proces Povečanje števila vrtljajev vretena na 1–17.500 min⁻¹ Vklj. vrtljivo os Obratovalne ure: cca 11.111 h Čas delovanja vretena: cca 4.116 h

Stanje: rabljeno, Leto izdelave: 2013, x-hod 600 mm y-hod 600 mm z-hod 500 mm Približna teža stroja: 18.500 t Potrebna površina: pribl. 5400x3800x3300 mm Skupna priključna moč: ca. 133 kVA Predvarovalka: 250A Kakovost stisnjenega zraka po ISO 85731: razred čistosti 4 Priključni tlak: max. 9,5 bar Obratovalni tlak: min. 7 bar Število vreten: 2 Razporeditev vreten: vertikalno, vzporedno Razdalja med vretni: 600 mm Vreteno max. 12.000 rpm Premer ležaja vretena: 90 mm Čas zagona: 0-10.000 min-1 ca. 0,8 s Pomik X-osi: 600 mm Pomik Y-osi (izmenična pozicija): 600 (875) mm Blsdpsyan Sasfx Aa Rji Pomik Z1-, Z2-osi: 500 mm Sistem zamenjave orodja: pick-up Orodjna vretena: HSK 80 Število mest za orodja: 70 Maks. premer orodja: 90 mm Maks. dolžina orodja: 540 mm Maks. teža orodja: 10 kg Maks. obremenitev magazina: 350 kg

Stanje: zelo dobro (rabljeno), Leto izdelave: 2009, Sústava na výrobu brožúr Horizon Zoradzovací stroj Horizon VAC 100 a, VAC 100m Počet staníc: 2 x 10 Max. formát: 500 x 350 mm Min. formát: 148 x 120 mm Kapacita nakladania: 55 mm na stanicu Rýchlosť: max. 9 500 cyklov/h Bodpfx Aeyhzubsa Reli Hmotnosť: 320 kg na vežu Rozmery stroja: 810 x 652 x 1 961 mm Napájanie: 230 V, 10,6 A, 2,3 kW Stolík na zníženie stohu HORIZON ST-40 Špecifikácie Max. formát: 350 x 500 mm Min. formát: 182 x 128 mm Hrúbka papiera: 52 – 208 g/m² Rýchlosť: max. 8 000 súprav/h Výška stohu: 360 mm Rozmery stroja: 1 353 x 652 x 1 027 mm (D x Š x V) Heftovacia a skladacia stanica SPF 200A Prijímací formát, 4-stranové hárky: min. 180 x 105 mm, max. 508 x 356 mm Konečný formát brožúry: min. 85 x 105 mm, max. 250 x 356 mm Hrúbka brožúry: max. 25 hárkov, 100 strán Rýchlosť: do 4 800 cyklov/h Hmotnosť: 782 kg (s predným orezávačom FC-200A) Rozmery stroja: 3 450 x 810 x 1 250 mm (D x Š x V) Napájanie: 230 V, 5,3 A; 1,0 kW Orezávač FC 200A Voľné od 05/2026

Stanje: zelo dobro (rabljeno), Prodajam profesionalno rezkalno držalo ORION – nemška kakovost in natančnost. • Tip SK40 Ø10-100 (Weldon) • Standard DIN 69871 AD/B – hlajenje skozi vreteno • Skupna dolžina 100 mm • Pritrditev za orodja Ø10 mm (stranski vijak) • Priloženo orodje – rezkar / sveder (vidno na sliki) • Zelo dobro ohranjeno, rabljeno, popolnoma funkcionalno. Držala ORION so idealna rešitev za CNC obdelovalne centre in rezkalne stroje s SK40 stožcem. Bledpfxoxcgyte Aa Rji

Stanje: pripravljen za uporabo (rabljen), 100.000-litrski rezervoar iz nerjavečega jekla, izoliran Rezervoar ima grelno kačo, ki poteka po celotni višini rezervoarja Premer: 3,15 m Višina: 16,50 m Bsdpfx Aasn E N N Eo Roli

Stanje: dober (rabljeno), Collet sleeves, collet, tool holder, tool adaptor, milling holder, milling tool, collet sleeves Bjdpeb A Rx Tofx Aa Reli - Collet chuck adaptors: Ø 8-20 mm - Outer diameter: Ø 32 mm - Taper: Ø 40 mm - Taper length: 15 mm - Weight: 6 kg

Stanje: dober (rabljeno), Collet sleeves, collet, tool holder, tool clamping device, milling arbor, milling tool, clamping sleeves - Collet chuck holders: Ø 8–20 mm - Outer diameter: Ø 32 mm - Taper: Ø 40 mm - Taper length: 15 mm Blsdpsb A Rx Uofx Aa Rei - Weight: 5 kg

Stanje: novo, Overall dimensions (L x W x H): 960 x 460 x 860 mm Weight: 75 kg Number of drawers: 8 pcs. Tool trolley with 272-piece tool set. Bledpfx Aasu Imp Tj Roi See pictures

Stanje: novo, Dimensions (L x W x H): 960 x 460 x 860 mm Weight: 75 kg Number of drawers: 8 pcs. Tool trolley equipped Bljdsvki A Ropfx Aa Rji For contents and configuration, see images

Stanje: novo, vrsta goriva: električni, barva: bela, Leto izdelave: 2021, Year of manufacture: 2021 Model year: 2021 Applicable material: Concrete CE marking: Yes Damage: None Price: On request Bjdjuu A Tyspfx Aa Reli

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2008, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 0-253-05-4317, višina obdelovanca (maks.): 60 mm, dolžina obdelovanca (maks.): 1.250 mm, širina obdelovanca (maks.): 800 mm, model krmilnika: Powercontrol PC85T mit Woodwop software, TEHNIČNI PODATKI Postopek: vodoravno vrtanje – injiciranje lepila – vstavljanje moznika Dolžina obdelovanca min/maks: 20 mm / 1.250 mm Širina obdelovanca min/maks: 50 mm / 800 mm Debelina obdelovanca min/maks: 10 mm / 60 mm PODROBNOSTI STROJA Krmiljenje: Powercontrol PC85T s programsko opremo Woodwop Mozniki: 8 mm x 30 mm, 8 mm x 35 mm Napetost: 400 V Frekvenca: 50 Hz Faze: 3-fazno Bledpfxjzhm Sgj Aa Rsi OPREMA Vrtalna enota: 1 vrtalna in moznična enota, programsko nastavljiva Os Z ročno nastavljiva Globina vrtanja ročno nastavljiva Sredinski naslon pnevmatsko zložljiv 4 vertikalni pritiskači Dvojna membranska črpalka 1:1