Expansorlux Laserski Varilni Stroj nakup rabljenega (31.446)

Stanje: rabljeno, Leto izdelave: 2004, številka stroja/vozila: 90380, Stroj za lepljenje robnih trakov, leto izdelave 2004 Lhodpjxxzk Sefx Af Ssl

Stanje: pripravljen za uporabo (rabljen), Global HS-8307 Hot Air Welding Machine Automatic belt cutter Lhodpfxsvaxfae Af Ssl You are welcome to arrange a viewing appointment. We are happy to organize affordable shipping for you! You will receive a proper invoice. For international customers, a net invoice can also be issued, provided a valid VAT ID number is supplied. Subject to prior sale. Visit our shop and take a look at our other offers as well. The specified company names and trademarks are the property of their respective owners and are used for identification and description purposes only. Deviations from technical data as well as errors in the item description may occur and are reserved.

Stanje: zelo dobro (rabljeno), Leto izdelave: 2023, Laser Welding Robot Manufacturer: TRUMPF Model: TruLaser Weld 5000 (LR03) Year of Manufacture: Week 51/2023 - Commissioning: 2024 4,000 Watt Solid-State (Fiber) Laser Operating Hours: As new, used ADVANCED EQUIPMENT: 30 m LLK TruDisk 4001 (Solid-State, Fiber) with 1 LLK-A 1 pc, incl. cooling unit, incl. laser welding safety package Workpiece Processing: Rotary module for shielding gas guidance FusionLine FusionLine Combination Nozzle Positioners: Infinite rotary-tilt positioner Lhedpfew U Ezzex Af Ssl Zero-point clamping system for rotary-tilt positioner Protective enclosure extended to 4,800 x 4,800 mm (front x side dimensions) Data Transfer: OPC UA for Machine Tools Basic (license may be required) EQUIPMENT: Machine: Collision protection KUKA Robot KR 70 Machine status indicator Compressed air and shielding gas supply Machine suitable for ambient temperatures up to 45°C Welding optics Perlator nozzle Welding optics BrightLine Scan Motorized focus adjustment Weld process visualizer Process gas at welding optics Linear nozzle Process gas and crossjet programmable Operation / Programming: KUKA smartPAD Production planner Touch panel with 21.5'' TFT color display Touchpoint user interface Data Transmission: USB interface RJ-45 network interface Central Link Remote Support Interface Online Update Manager Safety: Work area monitoring Workpiece Processing: Forming gas Further Optional BASIC EQUIPMENT: Automatic sliding door Compact dust extractor with 3,000 m³/h Support arm for operator panel Axis alignment set Robot elevation (extended standard) Data usage agreement TECHNICAL DATA: Type: High Accuracy Robot Number of Axes: 6 Rated Payload: 70 kg Repeatability: +/- 0.05 mm Rotary-Tilt Positioner Max. Work Area: 2,000 x 1,000 mm x 1,200 mm Max. Loading: 500 kg Turntable Max. Work Area: 2,350 mm (diameter) Max. Work Area (height): 1,150 mm Max. Loading (per side): 250 kg Rotary Changer with Swivel Axis Max. Work Area (swivel drum diameter): 1,200 mm Max. Work Area (length): 2,600 mm Max. Loading (per side): 750 kg Swivel Positioner Max. Work Area (swivel drum diameter): 2,000 mm Max. Work Area (length): 4,000 mm Max. Loading (per side): 1,000 kg Compact Rotary Changer with 3D Clamping Plate (rectangular) Max. Work Area (diameter): 3,000 mm Max. Work Area (height): 1,250 mm Max. Loading (per side): 600 kg Max. Load Inertia: 600 kg*m2 Rotary Changer Swivel Range: +/- 180° Rotary Changer Swivel Time (for 180°): 3.7 s Insertion Height: 830 mm Compact rotary changer with vertical rotary axes: Max. Work Area (diameter): 3,000 mm Max. Work Area (height): 1,250 mm Max. Loading (per side): 600 kg Max. Load Inertia, ring rotary table: 600 kg*m2 Rotary Changer Swivel Range: +/- 180° Rotary Changer Swivel Time (for 180°): 3.7 s Vertical Rotary Axes Swivel Range: +/- 190° Max. Load Inertia, vertical rotary axes: 359 kg*m2 Insertion Height: 885 mm CE and EU Machinery Directive must be verified by the buyer upon reinstallation. New Price: Over €580,000 This used machine can be inspected under production conditions. All information provided without guarantee – sale excludes any warranties or guarantees. Subject to prior sale.

Stanje: rabljeno, Funkcionalnost: popolnoma funkcionalen, največja dovoljena obremenitev: 260 kg, skupna masa: 3.500 kg, dolžina tovornega prostora: 10.000 mm, širina tovornega prostora: 2.500 mm, barva: svetlo siva, Leto izdelave: 2025, vhodna napetost: 380 V, vhodna frekvenca: 50 Hz, laserska moč: 3.000 W, Dolžina cevi (maks.): 6.000 mm, Oprema: CE označba, centralizirani mazalni sistem, dokumentacija / priročnik, hladilna enota, menjalnik šob, nujno zaustavitev, odsesavanje hlapov, odsesavanje prahu, varnostna svetlobna zapora, Visoka hitrost · Visoka natančnost · Visoka stabilnost Ledpfxswwi H Uj Af Sjhl Ta stroj ima visokoprecizni vpenjalni sistem, posebej razvit za rezanje cevi. Zahvaljujoč odlični zatesnitvi in zaščiti pred prahom zagotavlja vpenjalno natančnost ≤0,1 mm – idealno za visokonatančno obdelavo malih cevi. Vpenjalna glava se vrti do 160 obr./min in doseže pospešek 1,5 G. To omogoča zelo učinkovito obdelavo cevi z majhnim premerom. Podpira samodejno ali polsamodejno nalaganje. Omogoča enostavno inteligentno in avtomatizirano obdelavo. En stroj nadomesti tri zaposlene.

Stanje: skoraj kot novo (rabljeno), Funkcionalnost: popolnoma funkcionalen, Leto izdelave: 2019, Scrap conveyor was installed on a Laser Next 1530, year of manufacture 2019, but was only used sporadically and was eventually dismantled. All parts located on the belts are the complete mounting components for the machine. Prima Power Art. No. D5.57H steel conveyor belt for automatic rotary table. Lhsdpfovcpi Iox Af Ssl Length of conveyor up to the start of the elevating conveyor: approx. 292 cm, length of elevating conveyor approx. 160 cm. Total length approx. 452 cm. Conveyor height approx. 140 cm. Extension approx. 366 cm. Conveyor belt width approx. 67 cm. Conveyor width approx. 94 cm. Sale ex works, without warranty or return.

Leto izdelave: 2013, stanje: pripravljen za uporabo (rabljen), The following units are available: one Rehm Invertig Pro 350 AC/DC and one Rehm Invertig Pro 450 DC, both used and in good condition. 1) Invertig Pro 350 AC/DC Lodpfx Afoxddams Sehl Standards: IEC 60 974-1, IEC 60 974-2 Welding current range (TIG): 3–350A Output voltage U₂ (at maximum current): approx. 24V Open circuit voltage U₀: approx. 91V Duty cycle (DC): 100% (for TIG at 350A) Mains voltage/input: 3-phase, 400V, 50Hz Protection class: IP 23S, safety class S Adjustment range: 3–350A (TIG) for AC/DC version Duty cycle: 100% at 40°C, 350A (TIG), 100% DC Input fuse: 32A at 3x400V for the 350 AC/DC version Dimensions: length 520mm, width 360mm, height 460mm Weight: 29.5kg (AC/DC version) 2) Invertig Pro 450 DC Standard: IEC 60 974-1 Welding current range (TIG): 3–450A Output voltage U₂ at maximum current: approx. 28V Open circuit voltage U₀: approx. 91V Duty cycle (DC): 100% at 450A (TIG); for electrode welding, duty cycle is lower (approx. 60%) Mains/input: 3x400V, 50Hz Protection class: IP 23S Duty cycle at 100% DC, 450A (TIG) at 40°C Electrode welding current: approx. 360A at 100% DC (electrode) for the 450 DC version Power/input fuse: 32A at 400V (three-phase) for the 450 versions Dimensions: length 520mm, width 360mm, height 460mm Weight: approx. 28kg On-site inspection is possible.

Stanje: rabljeno, Leto izdelave: 2019, Table length: 3050 mm Table width: 1530 mm Number of torch heads: 0 Sheet thickness (stainless steel): 24 mm Sheet thickness (aluminum): 14 mm Working area: 3050 x 1530 mm Z-axis travel: 130 mm Y-axis speed: 170 mm/min Z-axis speed: 50 mm/min Positioning accuracy: 0.05 mm Repeatability: 0.02 mm Total power requirement: 75 kW Machine weight: approx. 16 t Space requirement: approx. 12.5 x 3.5 x 2.7 m Demo machine can be inspected under power at any time / FANUC 6000 W Fiber laser source, automatic beam centering, Lhedpfjvx Uv Eox Af Sjl DENER Smart Nest, air dryer, DENER filter, camera & monitoring, climate-controlled control cabinet, Precitec Procutter cutting head, shuttle table, automatic nozzle cleaning, central lubrication system, scrap tray for small parts and debris, METALIX Pronest automatic nesting, multi-chamber extraction system, warning beacon

Stanje: generalkompletno obnovljen (rabljeno), Nazivna moč pri 50 % delovnega cikla: 100 kVA Tok kratkega stika: 41,5 kA Elektrodna sila: 100–600 daN / enojni hod Izraz: 350–650 mm, brezstopenjsko --- Krmilnik: MPS 10beta (5 časov, 8 programov) --- Vključno z dodatnimi možnostmi: - Dvojni pedalni stikalo »priprava brez električnega toka« --- Garancija 6 mesecev --- Šoljenje in zagon na zahtevo --- Lhodpfozwhi Sox Af Sol Elektrode za točkovno varjenje + rezervni deli, na voljo iz zaloge --- Dodatne informacije najdete na naši spletni strani.

Stanje: rabljeno, WIG and Electric Inverter Welding Machine ESS Type Transtig 231 (DC) TIG Welding Machine Serial No. Year of Manufacture: 2007 TIG Output: 225 amps = 40% duty cycle 180 amps = 60% duty cycle 140 amps = 100% duty cycle Electrode Output: 180 amps = 50% duty cycle Power Supply: 400 Volt, 50 Hz, 16 Amp plug - DC welding unit - Infinitely variable power adjustment - 2-stroke and 4-stroke operation - HF ignition - Pulse welding mode - Stick electrode welding mode - Water cooled - 8 meter TIG torch package with hand torch - Shielding gas pressure regulator - Operating manual Space requirements (L x W x H): 1000 x 450 x 710 mm Weight: 90 kg The welding test shows very good results when welding stainless steel with DC. Lodportvi Rjfx Af Sohl Otherwise, the unit is also in very good condition.

Stanje: pripravljen za uporabo (rabljen), globina grla: 550 mm, Moč: 25 kVA Oblika: 550 mm Lsdpfxsyk S Utj Af Sohl

Leto izdelave: 2008, stanje: pripravljen za uporabo (rabljen), Na voljo je CNC laserski rezalni stroj Trumpf, vključno z RotoLas in Liftmaster. Laserski izvor: TruFlow 5000, Vrsta laserja: CO2-laser, Moč laserja: 5000W, Pomik osi X/Y/Z: 3000mm/1500mm/115mm, Največja debelina materiala Jeklo/nerjavno jeklo/aluminij: 25mm/25mm/15mm, Natančnost pozicioniranja: +/-0,1mm, Ponovljivost: +/-0,03mm, Največja hitrost osi: 200m/min, Največja simultana hitrost: 300m/min. Dimenzije stroja X/Y/Z: cca 11100mm/4600mm/2400mm, Teža: cca 12000kg, Delovne ure: 55462h, Ure laserja: 24430h, Delovne ure žarka: 12742h. Ure so navedene na dan 01/2026. Dokumentacija na voljo. Možen je ogled na lokaciji. Predvidoma na voljo od januarja 2027. Ledpfxsx Tumxj Af Sshl

Stanje: skoraj kot novo (rabljeno), Nazivna moč pri 50 % delovnega cikla: 35 kVA Tok pri kratkostiku: 15,5 kA Elektrodna sila: 470 daN / dvojni hod Izraz: 400 mm Razdalja med roko: 350 mm Koničasta elektroda: Mk2 --- Nadzor varjenja: TE 101 (8 časov, 100 programov) --- Vključno z dodatnimi možnostmi: Lhedpfx Afjzl A S Rj Sjl - Nožni stikalo - Glavno stikalo - 4 m priključni kabel s vtičem 63 A --- Garancija 6 mesecev --- Šolanje + zagon na zahtevo --- Elektrode za točkovno varjenje + rezervni deli, dobavljivo iz zaloge

Stanje: zelo dobro (rabljeno), Funkcionalnost: popolnoma funkcionalen, Leto izdelave: 2010, laserska moč: 4.000 W, X axis working area max.: 3050 mm Y axis working area max.: 1550 mm Control system: Rexroth IndraMotion MTX Laser power: 4000 watts Standard Equipment: Machine - Sturdy, easily accessible C-frame - Precision coordinate guideways for high-accuracy machining - Linear tool magazine with 21 tool stations and 4 clamping claws - Drives with maintenance-free three-phase motors - Secondary clamping device with programmable hold-down - Foot switch for clamping claw closing - 2 containers for finished parts - Automatic shutdown feature Laser Station - TruFlow laser - High-frequency excitation - Cooling unit - TASC 3 laser control - Enclosed beam guide - Beam tube ventilation with compressed air - Programmable cutting gas pressure - Laser cutting head with 170 mm focal length - Universal Quick-Change Cutting Head Unit UTI with bus connection - LensLine - FocusLine - ControlLine - NitroLine - SprintLine - ContourLine - FlyLine - PlasmaLine - High-speed cutting - Additional Xp and Yp axes - Ejector cylinder for laser parts - Fast hatch for laser parts 500 x 500 mm - Liftable laser cutting support - Slag cone detection Lhjdsy Saqgjpfx Af Ssl - Laser logbook functionality Punching Station - Electro-hydraulic punching head - Rotatable mono tool holder - Tool length compensation - Programmable hold-down with adjustable pressure - Stroke counter for punches - Spray lubrication for punches - Punch slug extraction - Sheet deformation detection - Flap for punched parts 500 x 500 mm - Monitoring of material fill level in the punching console Control - Open control system based on Bosch Rexroth IntraMotion MTX - Operating panel with 15" TFT touchscreen - Program management and 80 GB storage capacity - Diagnostic function with laser logbook - Integrated technology database - Remote service (teleservice) Data Transfer - Network port RJ45 and USB interface Safety - CE marking - Multi-beam light curtains - Monitoring system for gas pressure, temperature, cooling water, etc. - Hydraulic emergency stop - Protection against stray radiation - Compact dust extraction unit - TruFlow 4000 - Vibration-damped installation - Thread forming function - MultiTool function - Chip conveyor with tipping container - Active die - Blow-off device for small parts - Brush tables with loading assistance - Marking function - Secondary cylinder - Sheet deformation detection

Stanje: rabljeno, Funkcionalnost: nepreverjeno, Ultrazvočni varilni sistem, tip Ecoline 20L - Ultrazvočni generator K5, 2000 W / 20 kHz Lhedpfezlchlox Af Sel - Dostava možna, ob dodatnem plačilu.

Stanje: dober (rabljeno), Leto izdelave: 2008, številka stroja/vozila: 87920908, Offer 24228 Lhsdpfxjv Hzq So Af Sol Technical data: - Welding current: 400 A at 60% duty cycle - 320 A at 100% duty cycle - Welding current adjustable from 20 A to 400 A - Power supply: 400 V / 46 A - Included: - Electrode welding cable - Ground cable - Connection cable - Space requirements: approx. W 450 x H 750 x D 600 mm - Weight: approx. 150 kg

Leto izdelave: 2015, stanje: pripravljen za uporabo (rabljen), Na voljo je kompletna CNC CO2 laserska rezalna naprava Bystronic. Delovne dimenzije X/Y: 4000 mm / 2000 mm, hod osi X/Y/Z: 4060 mm / 2030 mm / 1700 mm, največja sočasna hitrost: 84 m/min, natančnost pozicioniranja: +/-0,1 mm, ponovljivost: +/-0,05 mm, največja obremenitev mize: 1500 kg, teža: približno 18.500 kg, delovnih ur: 29.456 h. Laserski vir: Bystronic ByLaser 6000, CO2 laserska tehnologija, moč laserja: 6 kW, valovna dolžina: 10600 nm, polarizacija: krožna, pulzna frekvenca: 1–2500 Hz, največja debelina reza jeklo/nerjavno jeklo/aluminij: 25 mm / 25 mm / 15 mm, teža: približno 1.800 kg, ur delovanja laserja: 10.275 h. Dokumentacija je na voljo. Ogled na lokaciji je možen. Lodpfxjy D Trno Af Sehl

Leto izdelave: 2005, stanje: dober (rabljeno), Dvo-glava varilna stroj za PVC profile. Lhedpfxezdqpbe Af Sel

Stanje: zelo dobro (rabljeno), Leto izdelave: 2002, vključno z napravami Sheetmaster, Toolmaster in Gripmaster Delovni čas: 11.800 ur Lokacija na zahtevo Slike na zahtevo Lhjdpfjzp Dwpjx Af Ssl

Stanje: rabljeno, Funkcionalnost: popolnoma funkcionalen, Leto izdelave: 2010, obratovalne ure: 7.900 h, vrsta upravljanja: CNC krmiljenje, stopnja avtomatizacije: samodejen, proizvajalec krmilnikov: Siemens, vrsta laserja: CO₂ laser, proizvajalec laserskih virov: Trumpf, laserske ure: 7.850 h, laserska moč: 3.200 W, prebojni premer: 76 mm, Oprema: centralizirani mazalni sistem, hitroizmenjevalna naprava, hladilna enota, menjalnik šob, nožno daljinsko upravljanje, nujno zaustavitev, odsesavanje hlapov, odsesavanje prahu, varnostna svetlobna zapora, TruFlow 3200 Laser, including LensLine with optimized standby Nozzle change device Multitool drive "Multishear" function "Multibend" function "Tapping" function Fast "Marking" / "Ribbing" function "Engraving" function "Rolling" and "Deburring" function "Softpunch" function Active Die Stripline Repositioning with pneumatic cylinders Damped installation Chip conveyor with container Ball worktable with brush inserts Blow-off device Sheetmaster (3000 x 1500) Automatic sheet separation system with lateral air blow Additional positioning guides for format (2500 x 1250) Ljdpfox N Hyvjx Af Sjhl Additional positioning guides for format (2000 x 1000) Discharge control device GripMaster (3000 x 1500) Double carriages with toothed belt drive (3000 x 1500) Loading and unloading unit Good parts conveyor on punching side Good parts conveyor on laser side Storage interface No. 21 RTC tool cassettes incl. die holder plate

Stanje: dober (rabljeno), Leto izdelave: 2018, MACHINE FRAME 2500x12000 mm ESA GV500 CNC CONTROL HEIGHT CONTROL Lhjdpfjq Abwpjx Af Sel PLASMA BEVEL HEAD ISO30 DRILLING UNIT WITH 6-STATION TURRET INCLUDED: NEW HYPERTHERM 400A GENERATOR 6-MONTH WARRANTY

Stanje: dober (rabljeno), Welding frame size: 650 x 500 mm Lhsdpfoixttyex Af Sol

Leto izdelave: 2008, stanje: pripravljen za uporabo (rabljen), Na voljo je CNC laserski rezalni stroj Bystronic. Delovni hod X/Y/Z: 4020 mm/2020 mm/170 mm, največja teža pločevine: 1500 kg, hitrost pozicioniranja: 60 m/min, hkratna hitrost: 80 m/min, natančnost pozicioniranja: +/-0,1 mm, ponovljivost: +/-0,05 mm, laser: CO2, laserski vir: ByLaser 4400, moč laserja: 4400 W, skupne dimenzije stroja X/Y/Z: pribl. 8000 mm/15000 mm/2,5 mm, čas rezanja: 17469 h, priklop na elektriko: 35200 h. Vključuje dve nadomestni rezalni glavi 7,5 in 5 palcev ter različne rezervne dele. Na voljo je dokumentacija. Ogled na lokaciji je mogoč. Predvidoma dobavljivo od junija 2026. Ledpfx Afsyu T D Rj Sjhl

Leto izdelave: 2012, stanje: pripravljen za uporabo (rabljen), Bystronic Bysprint Pro 3015 je bil izdelan leta 2012. Opremljen je z BYSTRONIC ByLaser 4400 CO2 laserjem, CNC krmilnikom BYSTRONIC ByVision in nakladalnikom pločevine BYSTRONIC Byloader 3015. Če iščete visokokakovostne rezalne zmogljivosti, razmislite o stroju Bystronic Bysprint Pro 3015 iz naše ponudbe. Za več informacij nas kontaktirajte. Lhsdpfxex Rpd He Af Ssl Vrste uporabe Rezanje

Stanje: kot nova (razstavni stroj), Leto izdelave: 2020, Here we offer you a resistance welding system. The system is designed for automated resistance welding of the following connections: - Housing + QLT - Housing + Heater Service Unit P450 - Welding pump + Flange P 800 The system is loaded and unloaded manually by an operator. Any use of the system other than as described above is not intended and therefore not permitted! System layout: - Welding unit - Sledge unit - Electrode cleaning unit - Base - Linear unit - DMC analysis unit Dimensions (L x W) mm: 1700 x 1200 Cycle time, sec.: ≤ 30 - 35 Technical availability, %: ≥ 95 Number of operators: 1 Voltage, V: 400 AC Frequency, Hz: 50 Control voltage, V: 24 DC Pre-fuse, A: 50 Rated current, A: approx. 17 Compressed air supply, bar: 6 Year of manufacture: 2020 Components of the system: - Control cabinet Lhodpfx Aezd Rmgof Sol - Safety enclosure - Linear unit -- Toothed belt axis: Festo DGE-25-700-ZR-LKRV -- Bosch servo motor: MSK030C-0900-NN-M1-UG0-NNNN -- Gear ratio: i=5 -- Feed constant: 63 mm/rev -- Reference switch: BES 516-324-G-E5-C-S49 - Sledge unit -- Balluff BES M08EC-PSC15B-S49G - DMC analysis unit: Keyence SR-1000 - Welding unit -- Horizontal spindle axis --- Compact Module CKK 110-250 without brake --- Bosch servo motor: MSK030C-0900-NN-M1-UG0-NNNN --- i=1 --- p=5 mm --- Integrated reference switch: Hall PNP NO contact -- Vertical spindle axis --- Compact Module CKK 110-100 with brake --- Bosch servo motor: MSK030C-0900-NN-M1-UG1-NNNN --- i=1 --- p=5 mm --- Integrated reference switch: Hall PNP NO contact -- Welding tongs --- Crede PSZ-K --- Control: ST-T13V2.0 --- Power module: LT-L05-T13V13.0 (5,000A) --- Water cooler: DLK 1002-C --- Interface: ProfiNet - Proportional valve block PVB V1.0 - Adapter box AB V3.0 for SZ and PSZ - Extraction unit -- TBH GmbH GL 265 Z - Flow monitor -- Turck GmbH & Co. KG FCS-M18-AP8X -- Type: BDE11154003 Condition: unused, the machine has never been put into productive operation Delivery scope: (see picture) (Subject to change and errors in technical data and specifications!) We are happy to answer further questions by phone.

Stanje: zelo dobro (rabljeno), Funkcionalnost: popolnoma funkcionalen, Leto izdelave: 2018, obratovalne ure: 1.889 h, laserska moč: 2.000 W, najv. debelina jeklene pločevine: 15 mm, maks. debelina pločevine iz nerjavečega jekla: 8 mm, delovna dolžina: 3.000 mm, delovna širina: 1.500 mm, Stroj je bil zelo dobro vzdrževan, redno očiščen in servisiran. Je v skoraj novem stanju! TEHNIČNE PODROBNOSTI Moč laserja: 2.000 W Proizvajalec laserskega vira: IPG Tip laserja: vlakenski laser Največja debelina pločevine: 15 mm Največja debelina jekla: 15 mm Največja debelina nerjavečega jekla: 8 mm Delovna dolžina: 3.000 mm Delovna širina: 1.500 mm Točnost pozicioniranja: 0,001 mm PODROBNOSTI STROJA Vrsta krmiljenja: CNC-krmiljenje Proizvajalec krmiljenja: Mazak Vrsta hlajenja: vodno Stopnja avtomatizacije: avtomatska Pogonski način: električni Vhodna napetost: 380 V Tip vhodnega toka: trifazni Ure vklopa laserja: 8.212 h Ure rezanja: 1.657 h Lhjdpfxezt R R Ro Af Ssl Leto zadnje generalne obnove: 2024 OPREMA CE-oznaka dokumentacija/priročnik varnostna svetlobna zavesa menjalna miza odsesovanje