Used Branson Ultrasonic Welding Machine for sale (66,227)

Condition: like new (used), Year of construction: 2019, functionality: fully functional, PFAFF 8303i CE hot air seam sealing machine (Type 8303-243/001) PFAFF 8303-243/001 is an advanced, computer-controlled hot air seam sealing machine designed for sealing and taping seams in waterproof, water-resistant, and breathable materials (e.g., Sympatex, Gore-Tex). The version with the post at the rear (243/001) is primarily intended for footwear production and applications in the automotive industry (e.g., car seat components). Key advantages and features: Digital control (Touch Panel): A clear touch screen allows for quick programming of operating parameters, saving ready-made "recipes," and prevents unauthorized changes to settings with password protection. Independent roller drive: Separate control of the upper and lower transport rollers guarantees perfectly smooth material feed and eliminates seam wrinkling. Automatic tape cutting: The machine has an integrated tape cutter driven by a separate motor, which significantly increases efficiency and repeatability of the work cycle. Process stability: A patented two-chamber air nozzle ensures a perfect temperature profile along the entire length of the seam. Safety and ergonomics: A modern stand-up/sit-down workstation mounted on a stable table base with two control pedals. Technical specifications: Model / Type: PFAFF 8303 - 243/001 (2019 version) Maximum sealing temperature: up to 650 °C Operating speed: up to 7 m/min (standard, with an option to increase to 20 m/min) Heating power: 3600 W Width of tapes: 10 – 30 mm Diameter of transport rollers: 25 mm (designed for hard-to-reach areas in footwear) Power supply: 230 V (single-phase), 50/60 Hz Required air pressure: 6 bar (consumption approx. 150 liters/min) Main application: Sealing seams in trekking, sports, and military footwear. Production of interior car components (headrests, armrests, foam seat profiles). Specialized protective, work, and outdoor clothing. The machine is in perfect technical condition, like NEW! Price for the machine upon request. Hsdpfx Aez Rkc Hjkrsnu Transport to the customer is possible. Please check our other auctions.

Condition: ready for operation (used), Year of construction: 2004, functionality: fully functional, machine/vehicle number: 00117, type of input current: three-phase, nominal power at 50% duty cycle: 90 kVA, input voltage: 400 V, type of cooling: water, welding power (max.): 245 kVA, nominal power (apparent): 90 kVA, air pressure: 6.5 bar, input frequency: 50 Hz, Equipment: type plate available, TECNA 2117 industrial DC inverter resistance welding machine, manufactured in Italy in 2004. The machine was previously used in production for resistance welding of aluminum trays. It is offered as a complete welding system as shown in the photos, including the custom-built supporting base/workstation and the integrated water cooling/chiller system used for cooling the welding arms and electrodes. The machine is equipped with programmable electronic welding control, pneumatic electrode actuation, program selection, and water-cooled welding electrodes. Technical specifications: Manufacturer: TECNA Model / Item: 2117 Hjdpfx Aszx D Tcjkrjnu Serial No.: 00117 Year of manufacture: 2004 Type: DC inverter resistance welder Supply voltage: 400 V Frequency: 50 Hz Phases: 3 Nominal power at 50% duty cycle: 90 kVA Maximum welding power: 245 kVA Secondary no-load voltage: 9.4 V Maximum welding current: 32 kA Maximum electrode force: 736 daN Water cooling requirement: 10 l/min Compressed air supply pressure: 6.5 bar TECNA machine net weight: 178 kg Equipment and features: Programmable electronic welding controller Multiple welding program selection Pneumatic welding head Copper welding electrodes Water-cooled welding arms/electrodes Custom-built supporting base/workstation Integrated water cooling/chiller system Pressure regulation and pressure gauge Emergency stop Three-phase industrial power supply The complete assembly shown in the photos is included in the sale, including the TECNA welding machine, control equipment, custom-built supporting structure, and cooling/chiller unit. Previously used in an industrial production environment for welding aluminum trays. The machine is currently installed on its supporting structure and is available for inspection in Greece. EXW Greece. Loading and transport are at the buyer's cost and responsibility.

Condition: used, Year of construction: 2012, functionality: fully functional, machine/vehicle number: 82397, type of input current: three-phase, welding current (max.): 420 A, Equipment: type plate available, MERKLE Insquare W 421 AC/DC water-cooled TIG welding system Manufacturer: MERKLE Model: Insquare W 421 AC/DC Year of manufacture: 2012 Serial number: 82397 Description For sale is a powerful AC/DC TIG welding system from MERKLE with water cooling. This system is suitable for professional welding applications on steel, stainless steel, aluminum, and other non-ferrous metals. The AC/DC technology allows for both DC and AC welding, covering a wide range of applications. With a welding current of up to 420 A, the system is ideal for industrial use in metal, tank, plant, and pipeline construction. The water cooling ensures continuous and reliable operation, even at high welding currents. Technical data Manufacturer: MERKLE Type: Insquare W 421 AC/DC Year of manufacture: 2012 Welding current range: 5 – 420 A AC frequency: 50 – 200 Hz Open-circuit voltage: 80 V Mains connection: 400 / 415 V, 50 / 60 Hz, 3~ Duty cycle at 40 °C: 420 A at 40 % 360 A at 60 % 310 A at 100 % Hjdpfszamffsx Akrenu Protection class: IP23 Water cooling Standard: EN 60974-1 Scope of delivery MERKLE Insquare W 421 AC/DC Water cooling TIG torch Ground cable Foot pedal All information is subject to change without notice.

Condition: used, Year of construction: 2015, Handles the full spectrum of blade types — bi-metal, carbide, wood, and stainless steel — up to 50 mm clamping width, covering blade dimensions from 6×0.40 mm up to 54×1.60 mm on bi-metal stock. At 25 kVA with 38 kN clamping force and 10 kN upsetting force, it delivers consistent, high-integrity welds across carbon and stainless steel strip with max. cross-sections of 150 mm² and 60 mm² respectively. The fully automatic welding and annealing cycle is recipe-controlled via touch panel — operator inserts the blade, hits start, and the machine handles the rest. Robust pneumatic clamping, water-cooled electrodes, and a 800 kg industrial frame make this a workhorse for sawmills, blade service centers, and large metalworking operations. Make and Model iDEAL BAS 320 Nominal output (50% DC) 25 kVA Secondary voltage 2.8 – 5.5 V (6 stages) Control voltage 24 DC Clamping force 38 kN Upsetting force (max.) 10 kN Air pressure (min.) 6 bar Air consumption per cycle 52.6 Nl (at 6 bar) Cooling water consumption 4–5 l/min (20–25°C) Machine weight approx. 800 kg Dimensions W/D/H 1214 / 957 / 1982 mm Connection voltage 380–420 Bi-metallic / carbide bandsaws 6×0.40 – 54×1.60 Wood saw blades 6×0.40 – 50×1.10 Stainless steel saw blades 10×0.40 – 40×0.80 Strip blades 6×0.40 – 50×1.00 Steel strip S235JR max. 150 mm² Stainless steel max. 60 mm² Hnodpfx Aoz Rkcaskrsu Max. clamping width 50 mm

Condition: new, Year of construction: 2010, functionality: fully functional, PMF 465 CE We offer for sale a high-quality, professional band pressing machine (thermal laminator) from the German manufacturer PMF GmbH Maschinenfabrikation. The unit is brand new, never used (so-called NOS – New Old Stock), and is in perfect technical and visual condition, still placed on its original transport pallet. PMF machines are highly regarded in Western Europe for their uncompromising precision, durability, and highest quality, in accordance with the Made in Germany standards. Model 465 is widely used in the footwear industry (reinforcing and joining upper parts), in the leather goods industry, in the garment industry, and in the automotive industry. An automatic conveyor belt ensures smooth and consistent material feed in the working area. A digital microprocessor temperature controller (accurate thermal stabilization) is coupled with two independent timer programmers for precise setting of the pressing time and transport time. A pneumatic clamping system is activated by means of an ergonomic, two-button foot pedal. The machine is equipped with a side air preparation unit (regulator with pressure gauge). Hnsdpfx Asz Sxbmekrsu A spacious work table with four independent, contoured auxiliary shelves for the operator, facilitating the handling of large or complex parts (e.g., uppers, patterns). Complete protection of the hazardous area: front and rear covers made of plexiglass, a metal perforated cover for the heating unit, and an easily accessible emergency stop button. The unit has a full CE certificate. Price for the machine is negotiable. Transportation to the customer is possible. If you have any questions, please do not hesitate to contact us.

Condition: used, Year of construction: 2013, functionality: fully functional, machine/vehicle number: NS-009-0000-300, type of input current: AC, nominal power at 50% duty cycle: 250 kVA, throat depth: 300 mm, short-circuit current: 50,000 A, input voltage: 400 V, type of cooling: water, total width: 1,000 mm, total length: 1,000 mm, total height: 1,850 mm, overall weight: 1,000 kg, open-circuit voltage: 22 V, Zens Multifunction Resistance Welding Machine 250 kVA MF – 23 kN – 50 kA – Year of Manufacture 2013 For sale is a high-quality Zens multifunction resistance welding machine in a robust industrial design. The system was developed for demanding resistance welding processes and is ideally suited for series production in the automotive, supplier, electrical, and metal industries. The machine operates with modern medium frequency (MF) technology and achieves a welding power of 250 kVA at a 50% duty cycle. The powerful SER medium frequency inverter (700 A) enables a maximum welding current of 50 kA and ensures maximum process stability as well as reproducible welding results. With a maximum welding force of 23 kN and an overhang of 300 mm, the system is suitable for a wide range of resistance welding applications. Technical Data Manufacturer: Zens Machine Type: Multifunction Resistance Welding Machine Year of Manufacture: 2013 Hnedpfx Ajzqucfjkrsu Welding Power: 250 kVA (Medium Frequency / MF) at 50% duty cycle Max. Welding Current: 50 kA SER Medium Frequency Inverter: 700 A Welding Control: SER-Mega1 Maximum Welding Force: 23 kN Overhang: 300 mm Equipment CE-compliant protective enclosure CE safety light curtain Welding table for welding forces up to 23 kN Pressure compensation tool QSF-M quality assurance system Position measuring system for process monitoring PLC control (Siemens S7) Robust industrial design for continuous industrial operation The combination of powerful medium frequency technology, precise force and position control, and modern PLC and SER welding control ensures high process reliability and consistently reproducible welding results. Thanks to the complete CE safety equipment, the machine can be easily integrated into existing production lines. The system is in good condition and can be inspected and demonstrated at any time by prior appointment.

Condition: used, Year of construction: 2008, functionality: fully functional, Single-head welding machine Hnjdpfx Akszpyfcjrju

Condition: refurbished (used), Bag Machine , retrofit , 680mm working whidth. Can weld bottom and side welding . Hodpoxf Txhofx Akrenu In good condition .

Condition: good (used), Year of construction: 2019, Professional automatic packaging machine, also suitable for large packages. For example, for packaging food, technical articles, printing and paper products, household and toy goods, and textiles. -Up to 10 programs can be stored via the display. -Automatic welding frame movement. -Automatic residual film winding. -Automatic product discharge via the outfeed conveyor. Hnsdez Sn Tfspfx Akrou -Process start manually via a push button. Alternatively, automatic process start is possible by entering a time interval on the display. -Conveyor belt can be adjusted steplessly in height via a hand crank. -Welding frame approximately 870 x 620 mm. -Maximum package length approximately 850 mm. -Maximum package width approximately 600 mm. -Maximum package height approximately 300 mm. -Welding frame movement is electrically powered. -Water-cooled welding unit (closed system). -Maximum film roll diameter 300 mm. -Maximum film width approximately 800 mm. -Perforation possible via 3 adjustable needle rings. -Roll holder can be moved separately. -Product insertion can be adjusted separately. -The machine can be moved or secured via lockable castors. -Machine dimensions approximately: Length 2 m x Width 1 m x Height 1.5 m. Multilingual documentation including operating instructions, spare parts lists, and circuit diagrams is included in the scope of delivery. The machine can be demonstrated while powered.

Condition: new, Year of construction: 2005, functionality: fully functional, Description Manufacturer: Amada Miyachi Type: STA-100A Model Number: 1-1-BAKA -AEA-01 Serial Number: 17010009 Condition: Used, New AC Resistance Weld Control Easy to use programming interface For controlling and integrating projection welders, press welders, multi-gun machines, portable welding guns, seam welders, robotic systems, swing-arm welders and other special purpose machines. Examples: Consumer Appliances Nuts and Studs Projection Welding Electronics and Automotive Parts Hsdjwcax Espfx Akronu Aerospace Parts Office Furniture Automotive Sheet Metal Input Power: 230-460 VAC Output Range: 1000-80,000 A Phase: Single Welding Period Range: 0-99 Description Manufacturer: Amada Miyachi Type: STA-100A Model Number: 1-1-BAKA -AEA-01 Serial Number: 17010009 Condition: Used, New AC Resistance Welding Controller Easy to use programming interface Used to control and integrate projection welders, press welders, multi-gun machines, portable welding guns, seam welders, robotic systems, swing-arm welders and other special purpose machines. Examples: Consumer appliances Nuts and studs projection welding Electronic and automotive components Aerospace components Office furniture Automotive sheet metal Input power: 230-460 VAC Output range: 1000-80,000 A Phase: single Welding period Range: 0-99

Condition: refurbished (used), Year of construction: 1998, functionality: fully functional, input voltage: 400 V, nominal power (apparent): 45 kVA, electrical fuse: 15 A, working range: 50 mm, open-circuit voltage: 28 V, nominal power at 50% duty cycle: 45 kVA, We offer this refurbished IDEAL BAS 050-11 butt welding machine, year of construction 1998. type: BAS 050-11 serial number: 224085 year of manufacture: 1998 year nominal power at 50% ED: 45 kVA rated apparent power: 45 kVA no-load voltage: 28/44 V max upsetting force: 250 kN primary voltage: 400 V rated frequency: 50-60 Hz fuse rating: 15 A Bi-metal / carbide bandsaws: 6×0.6 – 34×1.1 mm Hedpfxezudivs Akrenu Wood saw blades: 6×0.4 – 50×1.0 mm Stainless steel saw blades: 6×0.4 – 25×0.5 mm Strip blades: 6×0.4 – 30×0.6 mm If you have any questions or need more information, feel free to send us a message or give us a call.

Condition: good (used), Stud welding machine, stud welding compact system, stud welding machine, stud welding, stud welding system -Manufacturer: Heinz Soyer, stud welding machine with stud welding gun Hnedjz Ilrvjpfx Akreu -Type: BMS-8H -Connection voltage: 230 V / 50/60 Hz -Stud welding gun: PS-3K -Welding area: Bolts and pins from M3 – M8 or Ø 2 – 8 mm -Quantity: 1x stud welding machine available -Dimensions: 350/350/H270 mm -Weight: 15.4 kg

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode -Manufacturer: Dukane, Ultrasonic welding transducer, Ultrasonic vibration unit -Welding converter: Type 41B30 92320 342881 -Horn: Type US349563 110-2514 20 kHz Hnsdpfsxu Ex Ejx Akrju -Ultrasonic sonotrode: 001944-03-4002-03 -Quantity: 1x ultrasound transducer available -Dimensions: 450/110/H83 mm -Weight: 4.6 kg

Condition: good (used), Stud welding machine, stud welding compact system, stud welding machine, stud welding, stud welding system -Manufacturer: Köcor, stud welding machine with stud welding gun -Type: 902 E -Power: 200 - 900 A -Stud welding gun: K 22 -Welding area: Bolts and pins from M3 – M12 -Quantity: 1x stud welding machine available -Dimensions: 590/300/H510 mm Hedpoz N Hlusfx Akrenu -Weight: 81 kg

Condition: good (used), MERKLE Insquare W 300 AC/DC Welding Machine with original hose kit Primary: Voltage: 3 x 400 V Frequency: 50 (60) Hz cos phi: 0.95 TIG DC range: Open-circuit voltage: 80 V Working voltage: 10-22.8 V Welding current: 5-320 A Duty cycle 60% (10 min.) 320 A Duty cycle 80% (10 min.) 300 A Duty cycle 100% : 260 A (40°C) Primary continuous power: 9.5 kVA Primary continuous current: 13.7 A Primary peak current: 19 A TIG AC range: Open-circuit voltage: 80 V Working voltage: 10-22.8 V Welding current: 5-320 A Duty cycle 60% (10 min.) 320 A Duty cycle 80% (10 min.) 300 A Duty cycle 100% : 260 A (40°C) Primary continuous power: 9.5 kVA Primary continuous current: 13.7 A Primary peak current: 19 A Electrode welding: Electrode diameter: 1.5-6 mm Open-circuit voltage: 80 V Working voltage: 20-32.8 V Welding current: 5-320 A Duty cycle 60% (10 min.) 320 A Duty cycle 80% (10 min.) 300 A Duty cycle 100% : 260 A (40°C) Primary continuous power: 13.1 kVA Primary continuous current: 19 A Primary peak current: 22 A Welding processes: Selector switch, 10 levels: TIG DC Negative, TIG DC Positive, TIG DC Negative with start pulse, TIG AC low-noise, TIG AC Rectangular, TIG AC "Balanced TIG", Electrode Negative, Electrode Positive, Electrode "Sine wave", Electrode Rectangular Selector switch 1, 10 levels: Current 1, Time 1, Ramp-up and ramp-down time, Start current, End current, Hedpfx Asl Sm Hbjkrenu Ignition pulse, Spot time, Pre-flow and post-flow time Selector switch 2, 9 levels: Current 2, Time 2 (for pulse operation), AC Balance, AC Frequency, Hot start time and current, Current regulation, Electrode diameter, Display U Settings: 2 potentiometers for selector switches 1 and 2 Displays: 2 LED displays with preview and hold function for current, voltage, time, frequency Time functions: Selector switch, 4 levels: OFF, Pulse slow, Pulse fast, Spot welding Ignition: Selector switch, 4 levels: OFF, High frequency, Lift-Tig Energy control: Selector switch, 4 levels: on the machine, Hand or foot control, Welding torch Operating mode: Selector switch, 4 levels: 2-stroke, 4-stroke, 4-stroke with 2 currents, Gas test, Test, Program Program memory: 20 memory locations, freely assignable AC frequency: 50-200 Hz AC balance: 9-91% Gas pre-flow time: 0-3 s Gas post-flow time: 0-25 s Current ramp-up time: 0-2 s Current ramp-down time: 0-20 s Ignition pulse: 0-100 ms Spot time: 0.1-2.5 s Pulse slow: 10 ms-2.5 s Pulse fast: 50 Hz-5 kHz Hot start time: 0-1.5 s Hot start current: 10-200% Current regulation: 100-250% Button: Test protective device Button: Program selection LED: Power ON, Over temperature, Fault, Protection circuit, Display hold, Start current Ramp-up, Current 1, Current 2, Ramp-down, End current Power source: IGBT inverter Ignition: High frequency or Lift-Tig Standard: EN 60974-1 "S" / CE Torch connection: EURO central connection with 5-pin plug Torch cooling: Water-cooled Socket 50 mm²: Workpiece cable Socket 50 mm²: Electrode welding cable Power connection: 4 x 4 mm², 5 m long Gas connection hose: 2 m Weight: 130 kg (300 AC/DC) Dimensions L x W x H: 910 x 600 x 910 mm with gas cylinder holder Gas cylinder holder: 10 - 20 - 50 l gas cylinder You can find more items - new and used - in our shop! International shipping costs on request!

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode -Ultrasonic sweat transducer: Ultrasonic vibration unit -Welding transducer/horn: Type R32102089 -Ultrasonic sonotrode: 15k-FE0039H -Quantity: 1x ultrasound transducer available -Dimensions: 520/180/H130 mm -Weight: 15 kg. Hodexwmgcopfx Akrjnu

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode -Manufacturer: Herrmann, Ultrasonic welding transducer, ultrasonic vibration unit -Welding transformer: Type KHS20-IP50-L -Horn/Ultrasonic Sonotrode: Type 118.858/1 see photos -Quantity: 1x ultrasound transducer available -Dimensions: 450/260/H70 mm -Weight: 7.8 kg Hnjdpexyw Enefx Akrju

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode Hnodpoxywmxjfx Akrou -Manufacturer: QDSonic, Ultrasonic welding transducer, Ultrasonic vibration unit -Type: 20200319 -Horn: Type -Ultrasonic sonotrode: Length 110 mm -Number: 2x ultrasound transducer units available -Price: per piece -Dimensions: 370/110/H110 mm -Weight: 6.7 kg/pc.

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode -Manufacturer: Dukane, Ultrasonic welding transducer, Ultrasonic vibration unit -Welding converter: Type 41B30 92920 353244 -Horn: Type CTC205672 -Ultrasonic sonotrode: Quantity: 1x ultrasound transducer available -Dimensions: 450/110/H83 mm Hnedpsxu Ezysfx Akrou -Weight: 4.6 kg

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode Hnjdpfx Akexrzwrorsu -Manufacturer: Dukane, Ultrasonic welding transducer, Ultrasonic vibration unit -Welding converter: Type 41B30 93420 353599 -Horn: Type CTC2058800 -Ultrasonic sonotrode: Number: 7x ultrasound transducer units available Price: per piece -Dimensions: 450/110/H120 mm -Weight: 6.1 kg/pc.

Condition: good (used), Ultrasonic sensor, ultrasonic generator, ultrasonic transducer, ultrasonic plastic welding machine, ultrasonic converter, ultrasonic sonotrode -Ultrasonic sweat transducer: Ultrasonic vibration unit Hnsdpoxywuvjfx Akrou -Welding transducer/horn: Type R2102088 -Ultrasonic sonotrode: 15k-FO224H -Quantity: 1x ultrasound transducer available -Dimensions: 520/270/H130 mm -Weight: 19.1 kg

Condition: used, Plasma impulse gas metal arc welding machine, pulse machine EWM Type Tetrix 400 Plasma / Tetrix 400 DC-P Robot Plasma welding and soldering machine Art. No.: Serial No.: Year of manufacture 2003 Hodpfozwb R Nex Akrenu Output: 400 amps = 40% duty cycle 360 amps = 60% duty cycle 300 amps = 100% duty cycle Setting range: stepless Open-circuit voltage: approx. 26 volts Mains connection: 400 volts, 50 Hz, 32 amps plug - Digital display for current - Digital display for voltage, job, and program - Various welding programs can be selected - Pulse mode - Separate 4-roller wire feeder EWM, Type DV cold wire hand with connecting hose package approx. 5 meters - Approx. 4 meter hose package - External EWM water cooling, Type Cool 71 U41 DKF - External high-voltage unit - Welding machine equipped with 1 mm welding wire Space required L x W x H: 1300 x 640 x 1830 mm Weight: 245 kg Very good condition

Condition: used, current capacity 8,0 kVA throat 80 - 480 mm contact pressure capacity 17 - 235 daN horn spacing 140 mm mm rated capacity 8,0 kVA voltage 380 V total power requirement 17,8 kVA weight of the machine ca. 77,5 kg dimensions of the machine ca. 0,35 x 0,80 x 1,05 m Hnedpez Sdy Nsfx Akrou - Serial-No.: 18310126 - 2

Year of construction: 2003, operating hours: 200 h, condition: ready for operation (used), Equipment: 4 in one shovel, Bluetooth, Capable to welt up to 8mm. Roller table including the deal Feel free to offer. Machine will be dismantled after 6th of June 2026 Hodpfey Tia Hjx Akrjnu

Condition: ready for operation (used), Year of construction: 2012, functionality: fully functional, Equipment: type plate available, Built in 1994, modernized by the machine manufacturer KUKA in 2012. The system features a facing unit, a flanging die, and a tube conveying unit for unloading the welded components. We can adapt this system to meet customer requirements. A complete retrofit is also possible. The machine is assembled and can be demonstrated. We can also manufacture your friction welding joints for you, up to a clamping force of 300 tons. Feel free to contact us! Hsdpfx Asx I Efbekrsnu