Used Thermal Transfer Printer for sale (6,618)

Condition: as good as new (ex-display), functionality: fully functional, Year of construction: 2024, operating hours: 200 h, total length: 2,128 mm, total width: 1,294 mm, input voltage: 400 V, warranty duration: 6 months, input current: 32 A, laser power: 100 W, tank capacity: 32 l, volume flow: 20 m³/h, Polyamide laser sintering system including two interchangeable containers and unpacking station. The machine can be inspected and tested at any time at the BIBUS Austria demonstration center. Furthermore, the system features a quick-change mechanism between recoating blade and coater roller – the system is always up to date with the latest technology due to continuous upgrades. Gjdpfx Aeqwkypjkyjuc

Condition: like new (used), Year of construction: 2015, functionality: fully functional, HP Indigo Press 7800 The machine is in excellent condition, still installed, and currently in operation. It can be inspected under production conditions by appointment. According to the current owner, there are no outstanding technical issues, and the machine is fully up to date. Guedpezacdwsfx Akyoc Machine details: Manufacturer: HP Indigo Model: HP Indigo Press 7800 Serial number: IL 47000146 Year of manufacture: February 2015 Impression counter: approx. 19.7 million impressions, as of June 2025 Number of authorized colors: 7 Number of installed colors: 7 White ink authorized: Yes Machine still in production: Yes Availability: immediately, but not urgent Configuration and features: • 7-color configuration • White ink authorized • Thick substrate kit • One-Shot technology • Inline spectrophotometer • OFIR kit • Spare Ink Tank S3 • Chiller unit • UPS system • HP service contract • HP Production Pro for Indigo IN100T Digital Front End Hardware • HP Indigo Z4 G4 2133 V2 Control PC • HP Software Version 16.2.2 Technical and optical condition: The machine is reported to be in very good condition. According to the seller, there are currently no outstanding technical issues. The machine is fully maintained and up to date. In 2023, the entire material path was renewed/replaced, from the feeder to the stacker. This is a very important value factor, as the material transport section is one of the most relevant areas for stable and reliable production.

Condition: new, Year of construction: 2022, Ultra-fast 3D plastic printer Ultra-fast 3D plastic printer (growing volume 275x155x400 mm) for industrial use and learning environments, with fast material exchange and a wide selection of more than twenty print materials. Challenge the speed and quality of injection molding and take advantage of the superior flexibility without tools! Whole metalprinting system including: Gujdpfotucr Isx Akysc - Printer 3D plastic printing - x-Wash Product washing - x-Cure Hardening of printed parts NexaX v1 Software Easy print handling and remote control, job listing, queues and statistics This is a full system including the 3D-printer, wash station, and the curing device. Materials: KeyGuide, KeyModel Ultra - Ivory, KeyModel Ultra - Light Gray, KeyOrtho IBT, KeySplint Hard, KeySplint Soft, KeyTray, PRO9499 White, Saremco Print CROWNTEC, xABS3843, xDENT341-Beige, xESD, xFLEX402-Black, xFLEX475-Black, xFLEX475-White, xMODEL15-Black, xCERAMIC3280, xDENT201-Gray, xDENT341-Beige, xESD, xFLEX402-Black, xFLEX475-Black, xFLEX475-White, xMODEL15-Black, xMODEL15-Gray, xMODEL17-Clear, xMODEL35-Black, xMODEL35-Gray, xMOLD, xPEEK147, xPP405-Black, xPRO1100-Black, xPRO9400-FR

Condition: excellent (used), We are offering this AFINIA L801-01 color label printer, which is in very good condition, purchased in 2022, and hardly used. Includes a spare printhead. Input voltage: 100 - 240 V Godozaampepfx Akyeuc Input current: 2.4 - 1.0 A Frequency: 50 / 60 Hz Maximum power: 200 W If you have any questions or require further information, please feel free to send us a message or call us.

Year of construction: 2015, condition: excellent (used), functionality: fully functional, We are offering three inkjet printers from Linx Printing Technologies Limited, Model 8900, manufactured in 2015. Individual sales are possible. The printers have been regularly maintained and are in perfect working order. The roll carriage is included with the purchase of each printer. If you have any questions or require further information, please feel free to send us a message or call us. Gujdsy U Utnepfx Akysc

Condition: ready for operation (used), functionality: fully functional, machine/vehicle number: Fabr. / Serien Nr. 12.16.0072, Year of construction: 2016, operating hours: 6,250 h, total length: 2,000 mm, total height: 1,400 mm, total width: 1,100 mm, type of input current: three-phase, overall weight: 800 kg, input voltage: 400 V, input current: 32 A, shaft length: 1,070 mm, temperature: 200 °C, compressed air connection: 8 bar, input frequency: 50 Hz, laser power: 400 W, ambient temperature (min.): 10 °C, ambient temperature (max.): 35 °C, electrical fuse: 32 A, table width: 125 mm, tank capacity: 25 l, table length: 125 mm, repeat accuracy: 0.001 mm, Equipment: cooling unit, Manufacturer: SLM Solutions GmbH Type: SLM 125 HL Manufactured / Serial No.: 12.16.0072 Year of manufacture: 2016 Weight: 800 kg Dimensions: Length x Width x Depth in mm (2,000x1,400x1,100) Documentation: yes Accessories: Spare parts such as flanges, pipe sections, substrate plates, coating lips, powder containers or bottles (photos available upon request) Special features: Compressed air 7-8 bar, inert gas (argon or nitrogen) 5 bar and cooling water are required for operation. Used SLM Solutions SLM 125 HL system for processing reactive and non-reactive powder materials. Stainless steel and aluminum (other materials possible) have been processed on this system. Design of process chamber, handling station, and powder extraction system in accordance with ATEX Directive II for flammable materials. Build volume (L x W x H): 125 x 125 x 125 mm (less substrate plate height) Build volume reduction (L x W x H): 50 x 50 x 50 mm (less substrate plate height) 3D optics configuration: Single (1x 400 W) IPG fiber laser Gujdpfx Aey Uzciokyoc Build rate: up to 25 cm³/h Variable layer thickness: 20 μm - 75 μm, 1 μm increments Min. feature size: 140 μm Focus diameter: 70 μm - 100 μm Max. scanning speed: 10 m/s Average protective gas consumption during build process: 0.6 l/min (argon) Average protective gas consumption during flood process: 70 l/min (argon) Electrical connection / power consumption: 400 Volt 3NPE, 32 A, 50/60 Hz, 3 kW Compressed air requirement / consumption: ISO 8573-1:2010 [1:4:1] 7 bar

Condition: repair required (used), functionality: limited functionality, machine/vehicle number: 570115, Year of construction: 2013, operating hours: 928 h, total length: 1,400 mm, total height: 1,260 mm, total width: 1,100 mm, type of input current: AC, overall weight: 430 kg, input voltage: 230 V, For sale is a Stratasys Objet500 PolyJet 3D printer. The machine is explicitly offered as defective/in need of repair, as several print heads need to be replaced. The Stratasys Objet500 series is a professional industrial 3D printing system based on PolyJet technology. PolyJet works with liquid photopolymer, which is applied layer by layer via print heads and cured by UV light. The Objet500 models are designed for high-resolution prototypes, design models, functional prototypes, molds, fixtures, and components with fine surface quality. After repair, the machine is suitable for professional applications in the field of rapid prototyping, product development, model making, design, medical technology, engineering, and small-series production. Depending on the version of the Objet500 series, multi-material or digital material applications are also possible. Stratasys describes the Objet500-Connex family as a triple-jetting platform with multiple material/color or material combination options. Condition: Defective / in need of repair. Based on current knowledge, some print heads need to be replaced. Therefore, the machine is explicitly sold without any functional guarantee. Commissioning or repair should be carried out by qualified personnel or an authorized Stratasys service partner. On-site inspection is possible by arrangement. The machine may be of interest as a repair project, a source of spare parts, or for reconditioning by a specialist company. Technical data according to the manufacturer's specifications for the Objet500 series: Manufacturer: Stratasys Model: Objet500 / Objet500 Connex series Process: PolyJet 3D printing Build volume: approx. 490 × 390 × 200 mm Layer thickness: up to 16 micrometers Resolution: 600 dpi X-axis / 600 dpi Y-axis / 1600 dpi Z-axis Machine dimensions: approx. 1,400 × 1,260 × 1,100 mm Machine weight: approx. 430 kg Material cabinet: approx. 330 × 1,170 × 640 mm Weight of material cabinet: approx. 76 kg Power supply, depending on the version: 100–120 V or 220–240 V, 50/60 Hz, 1-phase Support material, depending on the system: SUP705 / SUP706B, depending on version and material approval The technical specifications refer to publicly available manufacturer/support data for the Stratasys Objet500 series. Stratasys specifies the build volume for the Objet500 Connex 1-2-3 as 490 × 390 × 200 mm; weight and system size are stated in data sheets as approx. 430 kg and 1,400 × 1,260 × 1,100 mm. Note regarding the defect: The machine is not sold as operational. Known defect: print heads need to be replaced. Other defects cannot be ruled out. Therefore, the machine is explicitly sold as a defective used machine/repair device/source of spare parts. Terms of sale: Sale exclusively to commercial enterprises/businesses. The machine is sold as a used machine, as described or as inspected, excluding any liability for defects/warranty. No guarantee is provided. Errors and prior sale are subject to change. Gedpfxey Uwlas Akyouc Inspection possible by arrangement. Sale takes place at the location.

Condition: used, functionality: fully functional, machine/vehicle number: ZanyTapir, Year of construction: 2025, operating hours: 251 h, total length: 700 mm, total height: 1,600 mm, total width: 700 mm, type of input current: AC, overall weight: 120 kg, input voltage: 230 V, Complete set consisting of Fuse 1, Fuse Blast, Fuse Sift, Mini 5-5 RG40104, and IVR 35/20-2 Sc Me For sale is a complete machine/system set in like-new condition, consisting of several coordinated components. Scope of delivery / set consists of: Fuse 1 Fuse Blast Fuse Sift Mini 5-5 RG40104 IVR 35/20-2 Sc Me This set is ideal for use in production, workshop, or industrial environments. The components are offered together as a complete set and are in very good, like-new condition. For operation or printing with white powder, the nitrogen generator Mini 5-5 RG40104 is required. A suitable compressor is offered separately in another listing, if required. Condition: like-new Availability: immediately / by arrangement Collection / shipping: by arrangement All information is provided to the best of our knowledge and belief. Subject to prior sale and errors. If you are interested or have any questions, please do not hesitate to contact us. We will gladly provide further pictures or information. Terms of sale: Sale exclusively to businesses/entrepreneurs. The machine is sold as a used machine, as described or as inspected, with exclusion of any warranty/liability for defects. No guarantee is given. Subject to errors and prior sale. Inspection possible by arrangement. Sale is ex-works. Guedpfxey Uvike Akyec

Year of construction: 2010, condition: used, functionality: fully functional, The Klieverik GTC81/1850SP FLOWLINE is designed for efficient single-piece transfer printing, but also supports cut sheet repeat jobs and roll-to-roll transfer printing. Maximum material width: 1650mm Speed: 0.1-2 m/s Drum: 195mm Maximum temperature: 220°C Gjdszaq E Njpfx Akyjuc We use it very little, and it is in very good condition.

Condition: good (used), functionality: fully functional, machine/vehicle number: G1850438, operating hours: 675 h, total length: 1,400 mm, total height: 1,100 mm, total width: 1,260 mm, type of input current: AC, overall weight: 430 kg, input voltage: 220 V, input current: 7 A, table width: 390 mm, table length: 490 mm, Stratasys J850 Digital Anatomy – professional PolyJet 3D printer for medical and anatomical models For sale is a Stratasys J850 Digital Anatomy, a high-quality industrial PolyJet 3D printer for realistic medical, anatomical, and functional models. This machine is ideally suited for clinics, medical device companies, research institutions, universities, dental/medical laboratories, and service providers in the field of 3D printing and prototyping. Godjy Urwwspfx Akyjuc The J850 Digital Anatomy enables the printing of complex models with multiple materials, colors, and Shore hardness values in a single print job. This makes it possible to represent anatomical structures such as bones, vessels, tissues, organs, and transparent areas in a particularly realistic manner. Typical applications include surgical planning, training, demonstration models, product development in the medical technology sector, and patient-specific models. Technical specifications / Additional information: Total printing time: 675 hours Technology: PolyJet / Multi-material 3D printing Layer thickness: up to 14 µm Multi-material printing with up to 7 base materials Full-color and transparent printing possible Software: GrabCAD Print / GrabCAD Voxel Print Network connection: LAN / TCP-IP Suitable for Digital Anatomy materials such as TissueMatrix, BoneMatrix, GelMatrix, and other PolyJet materials Condition / Storage notes: The machine is currently disassembled. Before disassembly, it was professionally flushed by Stratasys to prevent clogging or drying out of the print heads. As a result, the machine is properly prepared for transport or storage. Special features: Realistic haptics and appearance of anatomical models Very high level of detail and fine surface quality Printing of flexible, rigid, transparent, and colored areas in a single model Ideal for medical training, surgical preparation, and product development Industrial Stratasys quality Large build volume for complex models and small production runs Professionally flushed and prepared for transport/storage This machine is particularly interesting for users who want to produce high-quality medical models, demonstrators, implant/instrument prototypes, or realistic training models. Terms of sale: Sale exclusively to commercial businesses/entrepreneurs. The machine is sold as a used machine, as described or as inspected, with the exclusion of any liability for defects/warranty. No guarantee is provided. Errors and prior sale excepted. Inspection possible by appointment. Sale is ex-works.

Condition: excellent (used), Year of construction: 2018, EFI Vutek GS2000Lx Pro Ultradrop Superwide-format hybrid printer (flatbed + roll-to-roll) Godjy H I Rqjpfx Akyjuc Printing technology: UV LED (“cool cure”) Designed for industrial-scale production (signage, POP, display graphics) Colour configuration: 8 colours (CMYK Lc Lm LY Lk) + white RIP: Workstation + Fiery RIP included Mileage: less than 300.000m² Printhead status: very good. In production-demo possible Decommissioning, transport and installation possible upon request. Maximum speed (Fast-4 mode): up to 186 m²/h POP quality (600 dpi): ~70 m²/h High quality (1000 dpi): ~21 m²/h Board-to-board time: < 5 seconds For further technical details please refer to attached brochure

Condition: ready for operation (used), Inkjet printer for frame bending machine Length: 800mm Width: 1000mm Guodpfxohzgtuj Akyjc Height: 1900mm Weight: about 100kg

Condition: used, Year of construction: 2018, Manufacturer: EISENMANN, Type: 2860, Year of construction: 2018, Serial No. 81-231-F01, Heating medium: natural gas, Heating value: 10 kWh/Nm³, Exhaust gas volume: 35,000 Nm³/h, Reaction temperature: 730 °C, Burner heating capacity: 4,250 kW, Control system, Total boiler length: approx. 15 m. Guodpfx Akey Ua Evoysc

Condition: used, Inkjet printers, label printers, barcode printers, printers, logistics labeling systems, inkjet printers, thermal inkjet printers, control units for inkjet printers Gedpfx Ajykpg Tjkysuc -Condition: untested, message on display: -Device needs cleaning- -Handover: in its current condition as inspected -Manufacturer: Keyence, inkjet printer with accessories -Type: MK-G1000 -Touch panel: MK-P5 -Individual components/accessories: see photos -Submission/Price: complete -Transport dimensions: 465/380/H630 mm -Weight: 58 kg

Year of construction: 2019, condition: used, Used machine Year of manufacture: 2019 - One print bed with a format of 2500 x 1300 mm or 2500 x 3100 mm (model 2531) - High speed: Prints up to 25 m²/h or up to eight sheets/h (color configuration 4C) in 2440 x 1220 mm format, and up to approx. 12.5 m²/h (color configuration 4C+W) with simultaneous white printing - New ink supply system: The 1-liter ink bottles can be easily replaced from the front — refilling is much faster! - Simple operation — no alignment issues: Equipped with alignment pins and a printed measuring scale for precise media positioning on the print table. The register pins secure the media against shifting. The measuring scale makes it easy to adjust layout and RIP data to the exact position. - Increased flexibility with direct print on thick media: Prints on boards up to 50 mm in thickness - Reduced banding thanks to Mimaki Advance Pass System - Special Mimaki circulation system prevents settling of white ink - Mimaki Clear Control (MCC): For glossy surfaces — to avoid dust adhesion and the formation of small air bubbles, MCC simultaneously reduces ink drying time and UV light exposure. This enables both glossy and stylish matte finishes. In addition, multiple layers of clear varnish can be applied for embossed, multidimensional effects. - Convenient ink options: - LH-100 rigid UV inks for all smooth surfaces with high scratch resistance, color brilliance, and solvent resistance - LUS-150 flexible UV inks for smooth and uneven surfaces, approximately 150% stretchability, making them suitable for a wide variety of substrates - White ink for image backing reduces light transmission - Two-layer printing with white on clear and colored substrates - Print finishing with gloss or matte varnish options - Environmentally conscious printing: No harmful emissions due to UV print technology. Lower power consumption and longer lifespan thanks to UV-LED lamps - RasterLink 6: - Powerful RIP supports outstanding color reproduction Godpfx Akjy Nugqsysuc - Various print jobs can be easily nested - Simple and user-friendly interface - Intuitive icons help with quick orientation - Thematically related RIP settings are grouped in a single window and can be saved as favorites for repeated use - The print process is monitored directly in the main window - Software can be updated at any time via the internet, and profiles can be downloaded or updated. Printing method: Piezo inkjet Print heads: 2 heads in staggered arrangement Max. print format (W x L): 2500 × 1300 mm Max. media size (W x L): 2500 × 1300 mm Max. media thickness: 50 mm Max. media weight: 50 kg with even weight distribution Print resolutions: 300, 450, 600, 900, 1200 dpi Media hold-down: Vacuum Number of vacuum zones: 2 sections (on the X-axis) Accuracy (absolute): ± 0.3 mm or ± 0.3% of the specified distance (the larger value applies) Repeatability: ±0

Condition: used, Year of construction: 2014, Ask for additional information! EU version. Gusdpfx Akjy Ud Iheysc

Condition: used, DWS DigitalWax 029X Vintage: 07/2020 Laser: Class 3 Voltage: 110–230V, 50–60 Hz Gedpey Ud Hwjfx Akyeuc Power: 400W

Condition: new, SLS Materials for Industrial & Compact SLS 3D Printers High-performance SLS powders for professional additive manufacturing – compatible with a wide range of industrial and compact SLS 3D printers, including EOS, Formlabs, Sinterit, Sintratec, Nexa3D, and Raise3D systems. Our SLS powders undergo extensive in-house testing to ensure reliable processing, excellent mechanical properties, and consistent print quality across multiple machine platforms. Designed for both industrial production and compact SLS systems, IM3D materials deliver professional performance without restricting you to a specific ecosystem. Available Materials PA12 Balance – €45/kg Cost-effective, all-purpose PA12 powder with excellent refresh behavior and reliable mechanical properties. PA12 Performance – €49/kg Enhanced PA12 material with improved elongation at break and increased impact resistance for demanding functional applications. PA12 Glass Filled (PA12-GF) – €44/kg Stiff, dimensionally stable PA12 material reinforced for tooling and engineering parts. TPU88A – €45/kg Gedpjy Til Asfx Akyeuc Flexible SLS material with excellent elasticity, durability, and impact resistance. Machine Compatibility Compatible with a broad range of SLS systems, including: EOS / EOSINT: P100, P110, P350, P360, P380, P385, P390, P395, P396, P450, P500, P700, P730, P760, P770 Formlabs: Fuse 1, Fuse 1+ Sinterit: Lisa, Lisa Pro, Lisa X, Suzy Sintratec: Kit, S1, S2, S3 Nexa3D: QLS230, QLS236, QLS260 XYZ Systems: MfgPro230 xS, MfgPro236 xS Raise3D: RMS220 SLS4All Innova MK1 Loopzizo K-100 More compatibility information: im3d.shop/printer-compatibility OEM Material Alternatives We offer alternatives and/or drop-in replacements for materials from Formlabs, Sinterit, Sintratec, and Raise3D, including: Formlabs PA11, PA12, PA12 Tough, PA12-GF, TPU90A Sinterit Flexa Performance, PA11 Onyx, PA11.5, PA12 Eco, PA12 Industrial, PA12 Smooth Sintratec PA12, PA12-GF, TPU88A Raise3D PA Next, PA Next GB, PA11, PA12, PA12 GB, TPU86A, TPU90A OEM comparison overview: im3d.shop/compare/oem Why Choose IM3D SLS Materials? Broad compatibility across industrial and compact SLS systems Excellent refresh rates and low cost per part Stable processing and consistent print quality Industrial-grade performance without vendor lock-in In-house tested and production validated Technical onboarding and support available Fast shipping from the Netherlands

Condition: good (used), functionality: fully functional, Year of construction: 2014, overall weight: 41 kg, Technical Specifications: Build Volume: 30.5 L x 30.5 W x 45.7 H cm [12.0 L x 12.0 W x 18.0 H in] Layer Resolution: 100 microns [0.0039 in] Filament Diameter: 1.75 mm [0.069 in] Print Chamber: Enclosed and heated build chamber Connectivity: USB, Ethernet, Wi-Fi Condition Details: Usage Details: Used for small parts and prototypes. Printer's extruded filament readings may show inaccuracies. Overall Condition: Expected wear from use, few scratches, and dust due to infrequent use. Well-maintained. Godpeqy E N Sjfx Akyeuc Included in the Kit: MakerBot Replicator Z18 3D Printer On-board Camera for Print Monitoring Swappable MakerBot Smart Extruder+ MakerBot Large PLA Filament (Various Sizes) Intuitive Display, Dial, Assisted Leveling Condition Note: Company-used printer, always stored in optimal conditions.

Condition: used, This listing is for the Sartorius MSA225S + YDP10 Analytical Balance/Printer The unit is in full working condition and is ready for immediate use Guodpexv Du Iefx Akyoc This premium laboratory weighing system features a Cubis analytical balance paired with a dedicated printer. It delivers ultra-precise measurements and instant documentation for compliance-driven environments. Ideal for advanced research, pharmaceutical dosing, and quality control applications. Transparency Report and Technical Audit: • Source Pedigree: Biotech / Research Facility • Condition: Direct-from-Bench (Decontaminated/Original) • Power-On Test: Verified; Digital display active, lighting operational, and fan system engaged. • Integrity: 100% Original Parts (Non-Refurbished) [[1]()] Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. [[1](), [2]()] Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory

Condition: used, Year of construction: 1977, functionality: fully functional, machine/vehicle number: M08E/9141, Offer Number: M08E/9141 Gjdpfey Dc H Usx Akyouc Machinetype: 4 die - 4 blow transfer header Info: bushing cut-off Make: PELTZER-EHLERS Type: GB30-4 Constr. year: 1977 diameter range: 16 - 30mm number of dies: 4 number of stations (incl. cut off): 5 cutting length: 260 mm shaft length under head: 225 mm output - pieces/min: 60-80 press power: 450 t Location: Europe

Year of construction: 2014, operating hours: 4,000 h, condition: used, Operational machine with low hours! Gjdpfx Asy R Dc Dskysuc Ask for additional information!

Condition: used, functionality: fully functional, Year of construction: 2019, type of input current: AC, input voltage: 240 V, input current: 13 A, input frequency: 60 Hz, We are offering this used 3D printer Stratasys Objet350 Connex3, year of manufacture 2019. Model: Objet350 Connex3 Serial Number: 370192 Year of Manufacture: 2019 Supply Voltage: 100–120 V Supply Voltage: 200–240 V Rated Current: 13.5 A Rated Current: 7 A Gedpfx Aoyzq Nlekyouc Frequency: 50–60 Hz Number of Phases: 1 Short-term Peak Current: 1000 A If you have any questions or need further information, please feel free to send us a message or contact us by phone.

Condition: ready for operation (used), Year of construction: 1990, We offer this ready for use RAVNE DEE 630 transfer press, year of manufacture 1990. Manufacturer: RAVNE Model: DEE 630 Year of manufacture: 1990 Condition: ready for use Category ID: 1122 Type ID: 1489 Gjdpfx Akezbta Soysuc Machine type: transfer press If you have any questions or need more information, feel free to send us a message or give us a call.

Condition: not inspected (used), 7m x 1000mm thermal oil fryer with top hold down belt. Has come from factory producing chicken burgers and nuggets for major fast food chain. 7m frying length, 1000mm belt width. Gusdpfjigruyjx Akyec