Used Hbs Bolzenschweißtechnik Hbs Stud Welding Unit Arc 800 for sale (42,562)

Condition: like new (used), Year of construction: 2019, functionality: fully functional, type of input current: three-phase, total height: 220 mm, total width: 230 mm, total length: 470 mm, input voltage: 400 V, ground cable length: 2,500 mm, overall weight: 40 kg, type of cooling: air, electrical fuse: 32 A, protection type (IP code): IP23, welding current (max.): 800 A, Equipment: documentation/manual, type plate available, Demonstration unit, year of manufacture 2019 Including welding torch A12 - gas, 5 m length, with protective gas stand PSS-2 and ARC 6 to 12 mm gas device accessories. Ledpfx Aksyrttmsmohn Application: Especially suitable for thicker sheets from approx. 2 mm Features: Microcontroller control Function monitoring Error code display Lift-off test Safety: Integrated mains filter Optimal for construction sites with high mains voltage fluctuations EMC testing High voltage testing Re-trigger lock Thermal monitoring of the transformer Thermally controlled fan Consistent separation of control from welding cables Cooling air tunnel Maximum protection against external interference Protection class IP 23

Condition: excellent (used), Year of construction: 2019, 1 used CNC stud welding machine Manufacturer: HBS HBS Type: CPW0604/1K/1MZ Year of manufacture: 2019 Working area: 600 x 420 x 120 mm / 23.6" x 16.5" x 4.7" T-slot work table: 800 x 490 mm / 31.5" x 19.3" Welding range: M3 - M8, Ø 3 - 8 mm (Ø 10/12/12.7 mm only possible with modification) #4 - 5/16", Ø #4 - 5/16" (Ø 3/8" - 1/2" only possible with modification) Stud length: 8 - 40 mm / 0.31" - 1.57" (other lengths available upon request) Welding performance: Up to 30 studs/min. (depending on configuration) Feed rate: 25 m/min. (X-Y), 20 m/min. (Z) / 82'/min. X-Y, 65.6'/min. Z Stud feed: Automatic stud feed (up to 3 different stud lengths per welding head) Positioning accuracy of the welded stud: ± 0.2 mm / ± 0.008" Positioning and repeatability accuracy: ± 0.05 mm / ± 0.002" Welding head: KAH 412 KAH 412 LA (mechanical length compensation - gap) Max. number of stud welding heads: 1 Connection values: Electrical: 400 V*, 16 A, 50 Hz; Pneumatic: min. 6 bar / max. 10 bar / internal hose diameter 6 mm Motorized Z-axis: Z = 0 - 120 mm / 0 - 4.7" (freely programmable via servo drive) Control: High-performance PLC according to IEC 61131-3 Lhjdpfx Ajzq R Uwskmsn Display: 9-inch touchscreen Keyboard: Touch Dimensions (L x W x H): 1600 x 950 x 1900 mm / 63" x 37.4" x 74.8" Weight: Approx. 640 kg / 1410.96 lbs

Condition: used, Emhart TUCKER ETF50R.00.54/12.5.13-25BM Bolt Welding Machine Technical Details: - Manufacturer: Emhart Teknologies (TUCKER GmbH) - Model / Type: ETF50R.00.54/12.5.13-25BM - Article Number: T045 006/400 - Voltage: 400 V, 50/60 Hz Ljdpjxl Aguefx Akmshn - Made in Germany Condition: Used (see pictures). Note: For detailed technical data and processing instructions, we strongly recommend consulting the original data sheets or contacting the manufacturer directly. You can find more new and used items in our shop! International shipping costs available upon request!

Condition: used, Emhart TUCKER ETF50R.00.70/5.12-30F7 Bolt Welding Machine Technical Details: - Manufacturer: Emhart Teknologies (TUCKER GmbH) - Model / Type: ETT50R.00.70/5.12-30F7 - Article Number: T045 001/400 - Voltage: 400 V, 50/60 Hz Lhjdpfexl Atbsx Akmjn - Made in Germany Condition: Used (see pictures). Note: For detailed technical data and processing instructions, we strongly recommend consulting the original data sheets or contacting the manufacturer directly. You can find more items – new and used – in our shop! International shipping costs available upon request!

Condition: used, functionality: unexamined, type of input current: three-phase, total height: 3,000 mm, total length: 3,000 mm, input voltage: 380 V, type of cooling: water, welding current at 60% duty cycle: 1,000 A, welding current at 100% duty cycle: 800 A, welding current (min.): 250 A, welding current (max.): 1,250 A, Used ESAB submerged arc welding (SAW) system for sale, manufactured by ESAB AB / ESAB Welding Equipment AB, Sweden. The system is designed for mechanized submerged arc welding (SAW), including tandem welding AC/DC. It is suitable for welding long, straight seams, beams, profiles, sheet metal structures, cylindrical products, vessels, tanks, and heavy welded structures. Lhsdpezimbkofx Akmjn Manufacturer: ESAB AB / ESAB Welding Equipment AB Country: Sweden Process: SAW – Submerged Arc Welding Type: Mechanized welding system / tandem welding system Inscription: UP Tandemschweißen Welding: DC + AC with ESAB power sources Welding head: Available, with flux hopper Work beam / chassis: Long ESAB welding beam / tractor Condition: Dismantled / stored, available for inspection Welding power sources ESAB TAE 800 Parameter Data Model ESAB TAE 800 Range 300 A / 28 V – 800 A / 44 V 100% duty cycle 800 A / 44 V 60% duty cycle 1000 A / 44 V Power supply 400 / 415 / 460 / 500 V, 50 Hz Protection IP23 ESAB LAE 1250 Parameter Data Model ESAB LAE 1250 Type Welding rectifier Range 250 A / 24 V – 1250 A / 44 V 100% duty cycle 1250 A / 44 V Power supply 220 / 380 / 415 / 500 V, 50 Hz Protection IP22 Weight 490 kg Data from the tandem welding plate Mode Current Voltage Direct current / DC 520 – 580 A 28 – 30 V Alternating current / AC 550 – 620 A 34 – 36 V Travel speed: 680 – 800 mm/min. Included components: long ESAB welding beam / chassis; welding head; flux hopper; cables and hoses; control boxes; ESAB TAE 800; ESAB LAE 1250; submerged arc welding equipment. Condition: The system is used and is currently dismantled / stored out of active operation. Visible signs of use, dust, dirt, and storage are present. It is sold in its current condition, with the equipment shown in the pictures. On-site inspection and technical verification by the buyer are recommended before purchase.

Condition: excellent (used), For sale: Professional SOYER BMS 800-90 stud welding machine from a renowned German manufacturer. This device is designed for industrial stud welding using the spitzenzündung (contact ignition) method. Ideal applications: - Steel construction - Industrial production - Metalworking and assembly workshops ⚙️ Technical data: Manufacturer: Heinz Soyer Bolzenschweißtechnik GmbH Model: BMS 800 Type: BMS 800-90 Year of manufacture: 1991 Power supply: 220 V Frequency: 50–60 Hz Charging voltage: 60–190 V Capacity: 90,000 µF Max. current: 8 A Protection class: IP21 Made in: Germany (West Germany) 📦 Included: - Control unit Lhedpfx Ajz Smnvjkmjn - Welding gun - Power and work cables - Ground clamp 📊 Technical condition: - Used device - Shows normal signs of use consistent with operation - Visual condition as shown in the photos - Not tested under full load ✅ Advantages: - Robust industrial-grade construction - Proven German technology - Compact and mobile casing - Easy operation 🚚 Shipping: Courier shipping or personal collection available. International shipping is possible.

Condition: not inspected (used), Stud welding machine Manufacturer: NELSON Lhjdpfx Asy Ihbxokmsn Type: FSE 100 / FSE 500 Includes welding head, hoses, and control cabinet 15 x Nelson FSE 100 + N4 Inverter 5 x Nelson FSE 500 + N4 Converter Price per unit. Condition: used, untested In our assessment, the machine is in good used condition and can be inspected under power by appointment. Accessories, tools, and clamping devices shown are included in the scope of delivery only if noted in the additional information. Subject to technical changes, errors, and prior sale.

Condition: used, Tekol / Trumpf Lodpfx Akjzizpcjmehn Laser welding system Tekol LAP S4 with TRUMPF TruPulse 44 and TBH GL230 extraction system Description: For sale is a professional Tekol LAP S4 laser welding system with an integrated TRUMPF TruPulse 44 pulsed Nd:YAG laser and TBH GL 230 extraction system. The system is a closed, precision laser welding station for fine, pinpoint and low-distortion welding operations on metal parts. The pulsed laser enables very controlled heat input, clean weld spots and reproducible results. Ideal for precision engineering, toolmaking, repair welding, prototype construction and small series production. Closed protective cabin with safety system, control unit, rotary table and extraction/filter system. Technical data – system Tekol LAP S4 Operating voltage: 400 V ~ N / PE Current type: 3~ 400 V, 50 Hz Rated current: 32 A (approx. 22.5 kVA) Control voltage: 24 V DC Dimensions: Length: approx. 1330 mm, Depth: approx. 1300 mm, Height: approx. 2030 mm Weight: Machine: approx. 800 kg Travel ranges X-axis: approx. 160 mm Y-axis: approx. 100 mm Z-axis: approx. 100 mm Rotary table: 2-stage Technical data – laser TRUMPF TruPulse 44 Laser type: Nd:YAG pulsed laser Wavelength: 1064 nm Max. average power: 42 W Min. pulse power: 201 W Max. pulse power: up to 3 kW Pulse duration: 0.2 – 50 ms Max. pulse energy: 30 J Max. pulse frequency: up to 900 Hz Beam parameter product: 16 mm·mrad Technical data – extraction system TBH GL 230 Voltage: 230 V / 50–60 Hz Power: 0.36 kW Air volume flow, free-blowing: approx. 390 m³/h Effective volume flow: approx. 330 m³/h Max. negative pressure: 4000 Pa Sound pressure level: approx. 51 dB(A) Weight: approx. 40 kg Multi-stage filter system: Pre-filter Particle filter Activated carbon filter Weight approx. 900 kg Condition: used Scope of delivery: (See picture) Laser welding system Tekol LAP S4 TRUMPF TruPulse 44 laser unit Extraction system TBH GL 230 Documentation / folders / data storage media Keys and accessories as shown in the photos (Changes and errors in the technical data and specifications are subject to change!) We will be happy to answer any further questions you may have by telephone.

Condition: used, Working range: 1250x2250mm, max. feed speed: 48m/min, welding range: M3-M8, welding diameter: 3-8mm, stud length: 8-40mm, max. welding capacity: 30-40studs/min, max. feed: 48m/min, positioning accuracy: +/-0.2mm, length: 2400mm, width: 2700mm, height: 3100mm, the machine has been used very little and is in good condition. An on-site inspection is possible. Lsdpfx Akszxr N Somshn

Year of construction: 2026, operating hours: 5 h, condition: like new (used), functionality: fully functional, working range: 500 mm, machine/vehicle number: RC-1-0505, CNC Stud Welding Machine RC-1-0505 consisting of: 2-axis system 500 x 500 mm, motor-driven KAH100 welding head and automatic stud feeding system CDP-99 capacitor discharge (CD) welding unit Stud diameter: M3-M8; length range: 8-25 mm Weldable materials: steel, stainless steel, aluminium Fully enclosed housing with pneumatically operated safety door and additional light curtain safeguarding User-friendly control system The RC-1-0505 stud welding system stands out due to its high-quality equipment and a safety enclosure with protective panels and additional light grid. The system includes a CDP-99 stud welding unit using capacitor discharge technology, a fully automatic stud feeder, and a KAH100 welding head. The working area of the machine is 500 x 500 mm. The system is easy to operate and program, even for inexperienced operators. Welding positions can also be set via teach-in procedure using a crosshair laser and handheld control unit. Lhsdpfxjy Stahs Akmen Model: RC-Z-0505 NEW and unused Working area: X 500 mm x Y 500 mm, motor-driven; Z 150 mm, manual External dimensions: L 1016 mm x W 1350 mm x H 1663 mm Travel speed: max 40 m/min Compressed air: 6 bar; storage tank for pressure fluctuations included Power supply: 380 V / 50 Hz, CEE 16 A connection, 2.5 kW

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 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 Lhedezwb R Nepfx Akmsn Space required L x W x H: 1300 x 640 x 1830 mm Weight: 245 kg Very good condition

Condition: good (used), Year of construction: 2002, functionality: fully functional, filter area: 48 m², filter pressure: 15 bar, pressure: 380 bar, cake thickness: 25 mm, total width: 1,500 mm, total length: 4,800 mm, total height: 1,980 mm, overall weight: 4,600 kg, number of chambers: 44, Equipment: documentation/manual, safety light barrier, For sale is a chamber filter press with the following accessories: Lhjdpfxozulf Ss Akmon Hydraulics, filter plates, safety devices, control system, swing plates, feed pump, press frame (steel platform), 3 cake containers for forklifts. Chamber filter press 800 Side-frame press 15 bar filtration pressure Approx. 540 liters Open filtrate discharge 800x800 PP 25mm chamber depth 44 chambers Approx. 2.5 meters useful length Length 4800 x Width 1500 x Height 1980 mm 4600 kg Price upon request. We would be happy to provide you with an individual offer.

Year of construction: 2003, condition: ready for operation (used), A fully enclosed Soyer CNC coordinate stud welding system is available. Travel X/Y: 750mm/750mm, table dimensions X/Y: 1240mm/1000mm, max. table load: 100kg, positioning accuracy: +/-0.2mm, positioning speed: 24m/min, welding heads: 2, welding head type: Soyer SK-5AP, vibratory feeder: Soyer UVR-300, welding unit type: MBS-10N, stud size range: M3-M8. Machine dimensions X/Y/Z: approx. 1500mm/2050mm/1700mm, weight: approx. 1000kg, control: PC, operating hours: approx. 20000h. Including two welding units, two universal vibratory feeders, stud holders, plungers, ground clamps and feed hoses. Documentation available. An on-site inspection is possible. Ljdpfozqfwmsx Akmehn

Condition: like new (used), Year of construction: 2020, operating hours: 200 h, functionality: fully functional, arm reach: 1,437 mm, For sale: Panasonic robotic TIG welding workstation purchased from ValkWelding. Workstation includes: Panasonic TM 1400 G3 robot (6 axes, reach 1437 mm, payload 6 kg), two-axis L positioner PD1000/500, TIG welding unit Tetrix 352 AC/DC Synergic CW, accessories, and safety equipment. This workstation is distinguished by its ability to safely weld not only steels and stainless steels but also aluminum. The process is highly synchronized with wire feeding and is capable of seam tracking and adapting to changes in arc height. A very versatile device. I am selling this system because our original capacity expectations have not been met (we don’t have work in the hundreds or thousands of pieces). Over its entire lifetime (approximately 5 years), the workstation was powered on for around 200 hours and did actual test welding for less than an hour in total. It is practically in like-new condition. It would be a pity for it to just “collect dust.” All support has been directly provided by ValkWelding. In case of sale, they will arrange installation, commissioning, and personnel training as agreed. Ledpfxoy Efmgj Akmehn

Year of construction: 2006, condition: used, Submerged arc welding device, welding accessories, forming gas welding device, longitudinal carriage, chassis, welding carriage, longitudinal carriage, welding machine, welding carriage, inert gas welding device, longitudinal seam welding system, longitudinal seam welding machine, longitudinal seam welding device, rail runner -Submerged arc welding machine without: power source -Submerged arc welding machine type: Minisaf 02 Ljdjd Nlf Nepfx Akmjhn -Control box SUBARC 3 -Intermediate hose package -Equipment -Dimensions: 1200/800/H500 mm -Weight: 215 kg

Condition: used, Year of construction: 2017, functionality: unexamined, R+P Stud Welding Cell Enclosed protective cell made of aluminum profiles Safety enclosure with protective doors Signal light Integrated control cabinet Documentation available Suitable for automated stud welding processes Nelson Stud Welding Machine Manufacturer: Nelson Stud Welding Type: SD-FSE 1000S Year of manufacture: 2017 Serial number: 1739289 Part No.: 80-07-57 Technical data: Supply voltage: 24 V DC / 90 V DC Input current: 1 A / 10 A Welding current: up to 2000 A (duty cycle 2%) Protection class: IP20 Lodpfx Aozvylpjkmehn Polarity: STD Scope of delivery: Welding gun Connection cable Mobile equipment cabinet Both units were last used together as an automatic stud welding system.

Condition: used, Year of construction: 2019, Technical details: voltage: U1: 400V V open-circuit voltage: 70 V weight of the machine approx.: 100 / Gerät kg dimensions of machine: ca. 0,85 x 0,37 x 1,25 pro Gerät m 4 Fronius TransPuls welding systems available Can be used for industrial applications, e.g. robots. Areas of application: Welding process “CMT”, for all MIG/MAG welding work mobile, 4 wheels / 2x of which swivel with wire feed type: VR 7000-CMT: Wire feed speed 0.5 - 22 m/min; use of possible wire Ø 0.8 - 1.2 mm RCU5000i univoSD remote control 1 meter intermediate hose package Trolley Lsdpfx Akeu Nwhiomshn Protection class IP 23 AF cooling type Operation via display RCU 5000i i.D. *

Year of construction: 2007, condition: used, Welding Unit Manufacturer: KLN Ultraschall Model: HE-ANLAGE ADVANCE Year of manufacture: 2007 dimensions 1.900 x 2.131 x 3.023 ,, weight of the machine ca. ca. 2.200 kg In our assessment, the heating element welding machine is in Lodpjzbvnxefx Akmehn good used condition. Technical Specifications: Compressed Air: - Max. operating pressure: 6 bar - Compressed air consumption: 0.2 Nm³/cycle at 5 bar Heating Mirror: - 2x12 WALTOW heating cartridges, Ø12.5 x 400 mm, 1000 Watts, 230 Volts - 2x PT100 thermocouples - Heat-up time to 350°C: approx. 50 min Vacuum Pump: - BECKER vacuum pump, Model VT 4.16, 550 Watts Accessories, as well as the tools and clamping devices shown in the images, are included in the scope of delivery only if explicitly noted in the additional information. Subject to changes and errors in technical data and specifications, as well as prior sale!

Year of construction: 2023, condition: excellent (used), functionality: fully functional, Number of heating elements: 4 Power (per heater): approx. 10 kW (230 V/400 V) Max. temperature: 700 °C Max. process temperature: 600 °C Thermocouple: Type K Temperature control: PLC software-based regulation Thyristor controller: AEG Thyro 1A-230-60H Lhsdpfx Asy Htgwjkmen Cooling (chamber): Consumption 2: (4.0...8.5) m³/h Inlet temperature: (15...18) °C Outlet temperature: (20...28) °C Pressure: (3.5...4.5) bar Water quality: mechanically clean, visually clear pH value (at 20 °C): (6.5...8) Max. particle size: < 25 μm Water hardness: < 15 °dH Chloride ions: < 80 mg/l Total chloride and sulfate content: < 160 mg/l Cooling (evaporator): Consumption 3: (1.5...2.5) m³/h Inlet temperature: (6...10) °C Outlet temperature: (12...15) °C Pressure: (3.5...4.5) bar Water quality: mechanically clean, visually clear pH value (at 20 °C): (6.5...8) Max. particle size: < 25 μm Water hardness: < 15 °dH Chloride ions: < 80 mg/l Total chloride and sulfate content: < 160 mg/l

Condition: used, EOS / Transitube Powder conveying system / dosing system EOS Transitube DCL 800/30 PM Automatic powder conveying and dosing system for two components For sale is a used powder conveying system from the manufacturer Transitube / tim plast Anlagenbau GmbH. The system is used for the continuous dosing, conveying, and homogenization of powders, ground materials, or granules and is ideally suited for plastics processing, extrusion, and injection molding. Technical data: Manufacturer: transitube / tim plast Anlagenbau GmbH Type: DCL 800/30 PM Designation: EOS powder conveying system Dosing system for 2 components 2 material containers, each approx. 400 liters Continuous dosing and mixing Materials: Powder Granulate Ground material / regranulate Power connection: 3/N/PE 400 V AC Frequency: 50 / 60 Hz Connected load: 2.0 kW Weight: approx. 180 kg Lsdpfxozn H D No Akmjhn Dimensions (approx.): Width: 1850 mm Depth: 900 mm Height: 1320 mm Dosing capacity, model-dependent: approx. 50 to 2,000 kg/h Dosing accuracy: ±0.5 to ±2 % Dosing range: 5 to 50 % Additive dosing: 0.2 to 10 % Equipment: 2 dosing containers with hinged lids Automatic control cabinet with touch panel Transitube conveying and mixing system Electrical control Screw dosing Pneumatic components Flowserve Automax actuators Conveying motor with gearbox Various conveying hoses Piping Accessories as shown in the pictures Application areas: Plastics industry Extrusion Injection molding Powder conveying Material dosing Regranulate dosing Mixing systems Production automation Condition: Used Visual condition as shown in the pictures. Scope of delivery as shown in the pictures. Scope of delivery: 1x EOS Transitube DCL 800/30 PM powder conveying system Complete control cabinet Conveying units Motors Pneumatic components Hoses Piping system Accessories as shown in the pictures Important note: The system is sold as shown in the pictures. Please note the scope of delivery in the photos. Tables, tools, or other aids that may be visible in the pictures are not included in the scope of delivery unless explicitly stated. Shipping via freight forwarder is possible. Inspection is possible at any time by appointment. Subject to prior sale and errors. If you have any questions, please do not hesitate to contact us by telephone.

Condition: good (used), Year of construction: 2008, machine/vehicle number: 61747, Offer 26264 Technical specifications: - Welding current 330 A 35% duty cycle - Welding current 250 A 100% duty cycle - Adjustable welding current 10 A - 330 A - Digital voltage and amperage display Lhodpfs Ad H Uwjx Akmen - 4-roller wire feed, continuously adjustable 0.5 - 25 m/min - 2-cycle - 4-cycle regulation - Pulse setting - Wire burn-back setting - Water-cooled hose pack approx. 4 m - Ground cable - Pressure regulator - Water cooling unit MERKLE, type: WK 230 - 300 - Connection 400 V / 32 A / 18 kVA - Space requirement approx. W 450 x H 1200 x D 1050 mm - Weight approx. 80 kg

Condition: good (used), Weld studs, ceramic rings, tip ignition studs, head studs -Welding studs: with ceramic rings, 40 different types Quantity/Version: see photo parts list -Delivery/Price: only complete set -Dimensions: 1200/800/H120 mm Total weight: 64 kg Lhodomxpt Ispfx Akmsn

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, machine/vehicle number: R08175632, empty load weight: 135 kg, 1. Robot for welding "FANUC" – Arc Mate 1001C/6L Type: A05B-122.1-B301 No.: R08175632 Date: 2008 Weight: 135 kg 2. Rotary positioner "FANUC 2-axis Servo Positioner" Type: A05B-1220-J201 No.: R07255039 Date: 2007 Weigh: 295 kg Lhodst N Rmkspfx Akmsn 3. Welding device "CEBORA , with a welding control panel for connecting to the "Arc-On" robot Type: MIG 5040/T D PULSE No.: D32264 Operating voltage: 400V, 50/60Hz, 36A Max. el. power: 500A-40%; 450A-60%; 430A-100%

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 -Type: BMS-8H Lsdpfx Akez Ilrvsmohn -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: excellent (used), Year of construction: 2018, functionality: fully functional, Hib Akzent 1000 Model T1060-8 Welding Tongs Control Very good used condition, fully functional. Lhsdpfx Aksxmuzmomen Item location: 75053 Gondelsheim See pictures Shipping by freight carrier or collection