Used Baykal Baykal Aphs 2104X60 for sale (330)

Condition: new, HNC is Baykal's Variable Rake Hydraulic Shearing Machine, designed for precision cutting of sheet metal with enhanced control over cutting angle (rake) and blade gap. It is ideal for medium to heavy-duty sheet metal processing, offering high productivity, clean cuts, and flexibility across various material types and thicknesses. Ksdjwnalpjpfx Abnedr

Condition: new, HGL is Baykal’s economical and efficient swing-beam shearing machine, designed for light to medium-duty sheet metal cutting. It offers a cost-effective solution for fabricators who need accurate, clean cuts without the complexity or cost of high-end shears. The HGL is particularly suitable for small workshops, maintenance departments, and entry-level metal fabrication operations. Kjdpfxownal Ae Abnodr

Year of construction: 2022, condition: good (used), functionality: fully functional, machine/vehicle number: 919-313-239-i, For sale is a used thermography camera including protective housing. FLIR A400, Image Streaming, 42° Serial number: 91901277 Scope of delivery: - Cardboard packaging - Infrared camera with lens - Ethernet cable M12 to RJ45, 0.3m - Calibration certificate with login data Kdedex Ifafjpfx Abnsr ##### TOPA ML protective housing for FLIR A400/A500/A700 including 3" germanium window High protection class and chemical resistance: IP67 Rugged design made from anodised aluminium profile Vibration-resistant mounting with effective heat dissipation Dimensions: 96 x 96 x 227mm (W x H x L), excluding cable glands ##### Climate unit for TOPA protective housing with temperature monitoring and emergency shutdown Free-standing unit with high-performance pump, fans and radiator for continuous monitoring of camera temperature and water flow with emergency shutdown in the event of a fault. Typically, the system allows camera operation in ambient temperatures from -50°C to 200°C. The maximum distance between camera and climate unit is 20 meters. The height difference must not exceed 5.7 meters. The scope of delivery includes cables and hoses for a distance up to 3 meters. Includes: - Water cooling module for mounting on TOPA protective housing - Climate unit - 12VDC, 40W power supply unit for DIN rail mounting - 6m NBR hose (-20°C to +80°C continuous temperature) - 3m high-temperature cable with temperature sensor - 3m DC connection cable - 250ml coolant concentrate

Year of construction: 1991, condition: used, functionality: fully functional, machine/vehicle number: L7-614-14H, PRODUCTION LINE FOR THE PRODUCTION OF 330 X 330 MM ¼ FOLD NAPKINS. PRICE: PRINTING MACHINE Producer: Hobema Model: 14H Serial number: L7-614-14H Production date: 1991 EQUIPMENT 1. Double unwinder for reels up to: 1500 mm with lift • intake for roll core R 70 or 76 mm • max roll weight 200 kg • single motor drive with multi-V-belt • drive speed controlled by dancer • automatic machine stop at reel end • dust removal system 2. Calendering Unit • for equalizing the tissue thickness, reducing of dust, and improving the printing quality • drive from the central engine • hardened and ground cylinders 3. Web Aligner No. AND • FIFO web aligner positioned in front of printing station 4. Flexographic Printing Press • one printing tower frame for max five (5) printing units • moveable operating platform for operating the printing units • push-button operator panel • maximum format range 330 mm 2 Kedpfx Abownyatonodr • one central engine for all printers • motorized 360° radial register • ceramic coated anilox roller • one set mounting cylinders – for 330mm (Lunch) napkins formats • external air pumps to supply paint • lifting and dropping of ink trays • protection covers, safety switches 5. Strobe device for print control. 6. Infrared Drying Equipment • one drying infra-red cassette with temperature regulation • one fan for cooling the casette • automatic shut-off when the end of the material roll. 7. FIFO web Aligner No. II for embossing 8. Double embossing station • two-position embossing station • two sets rollers for embosiing – Formats: Lunch 330x330mm, round 330x330mm 9. Vertical folding frame with a cutting knife 10. ¼ Folding Head 11. Two-way product output and automatic transfer to packing machine 12. Electrical Equipment TECHNICAL DATA Max printing speed: 300m/min Real speed printing: 230 – 250 m/min Supply voltage: 230 / 400 V, 3 – phases + PE, 50 Hz Control – Siemens S5 Max Power 120 KW. ELECTRICAL DATA Supply voltage: 230 / 400 V, 3 – phases + PE, 50 Hz Max power 30 KW.

Condition: ready for operation (used), functionality: fully functional, Gas inlet: AR Alternatre Gas inlet. Kdodpfx Ajxnpw Eobnsr Good working condition. Please check out our other listings as well.

Condition: good (used), Year of construction: 2019, XEIKON CX3 Manufacturer: Xeikon  Model: CX3  Technology: Dry toner digital printing  Year of manufacture: 2019  Counter reading: 23,840,536 A3 prints Ksdpfsyhpyzsx Abnedr  Machine condition: Very good, currently in production Web width and format  Maximum web width: approx. 330 mm  Maximum print width: approx. 322 mm  Format: roll-to-roll Speed and productivity  Maximum printing speed: up to approx. 19.2 m/min  Productivity: up to approx. 1,540 m²/hour (depending on job and coverage) _____ Technical configuration (as visible and confirmed) • Xeikon CX3 digital color printing engine • Integrated unwinder • Integrated rewinder • Roll-to-roll configuration • 5th color unit – White • Additional special colors available: Blue and Orange • Continuous manufacturer service contract in place • Machine currently running in production _____ Electrical data (according to nameplates) • Power supply: 3-phase, 220–240 V / 380–415 V • Frequency: 50 / 60 Hz • CE compliant _____ Included equipment • Unwinding unit • Rewinding unit • Digital front end and control panels • Safety systems and emergency stops • All standard accessories installed on the machine _____ Operational status • Machine is fully functional • Currently in operation • Regularly maintained under manufacturer service agreement _____

Condition: good (used), Year of construction: 2009, functionality: fully functional, MPS EF 510/4 FLEXOGRAPHIC LABEL PRINTING MACHINE Machine Overview Manufacturer: MPS Model: EF 510/4 Year of manufacture: 2009 Web width: 510 mm Printing technology: UV flexo / water-based flexo Number of colours: 4 UV printing units + 4 water-based drying ovens Condition: Used, professional production machine Availability: Expected November / December, to be confirmed Technical Configuration • 4 x UV flexographic printing units • 4 x drying ovens for water-based inks • Web width: 510 mm • Double die-cutting station • Wide-web label and flexible packaging configuration • Suitable for self-adhesive labels and selected filmic substrates Kjdpjy N Tdnsfx Abnodr Accessories and Equipment • Double die-cutting station • Tidland longitudinal slitting unit • Interface for connection to ABG Vectra rewinder • UV and water-based drying configuration • Professional wide-web flexographic production setup Magnetic Cylinders • Z163, Z173, Z178, Z180, Z182 Printing Cylinders: • 4 x Z130, Z136, Z140, Z144, Z150, Z156, Z163, Z166, Z170, Z173, Z178, Z180, Z182 Sleeves • 4 x Z163, 4 x Z173, 5 x Z178, 4 x Z180, 4 x Z182 Anilox Rollers • 1 x 120 L/cm – 8 cm³/m² • 4 x 140 L/cm – 6 cm³/m² • 2 x 140 L/cm – 8 cm³/m² • 1 x 160 L/cm – 6 cm³/m² • 2 x 180 L/cm – 5 cm³/m² • 1 x 200 L/cm – 5 cm³/m² • 2 x 260 L/cm – 5 cm³/m² • 2 x 320 L/cm – 4.5 cm³/m² • 2 x 400 L/cm – 4 cm³/m² • 1 x GTTL anilox Main advantages: • 510 mm web width • UV and water-based drying system • Double die-cutting station • Interface for ABG Vectra connection • Extensive tooling package with magnetic cylinders, sleeves and anilox rollers • Suitable for label and converting applications

Condition: good (used), Year of construction: 2010, functionality: fully functional, OMET FlexyServo 330 mm Year of manufacture: 2010 Printing process: Servo-driven UV flexo Condition: Used – excellent condition Location: Europe _____ Machine Configuration • 6 x UV flexo printing units • 6 x GEW UV drying units • Double die-cutting stations • 1 x Gap Master system Kdodpfx Abjyyn Rwsnsr • Turn bar (web turner) • Sheet-off unit with additional die-cutting station • Suitable for adhesive label production _____ Equipment & Tooling • 6 sets of tooling • 6 anilox rollers • 3 magnetic cylinders (currently in production) _____ Technical Highlights & Advantages This OMET FlexyServo is a modern servo-driven flexo press offering excellent register accuracy and efficient production performance. Key advantages: • Servo technology for high precision and reduced waste • Strong UV drying system (GEW) • Flexible configuration with multiple die-cutting options • Well-maintained machine in excellent condition • Immediate availability with testing possible This machine is ideal for converters looking for a reliable and efficient narrow web solution. _____

Condition: used, Year of construction: 2000, The Carint central impression flexographic printing press is designed for printing on PE, PP, OPP, PET films, and paper. The machine features 6 printing units (6+0), a geared drive, and is suitable for a wide range of flexible packaging applications. Material width: 1,280 mm Printing width: 1,250 mm Print repeat: Min: 360 mm / Max: 1,040 mm Mechanical speed: Up to 300 m/min UNWINDER AND REWINDER The machine is equipped with a non-stop turret unwinder and a non-stop turret rewinder. Maximum reel diameter: 800 mm. Expanding shafts: 3" DRYING SYSTEM Electrical drying system. INK SUPPLY 6 pneumatic ink pumps. ACCESSORIES • Motorized longitudinal register • Chamber doctor blade system • 8 Anilox cylinders • 6 Plate cylinders • Video inspection system • Web guides • Banana rollers • Plate cylinder lifting hoist Kedpozku Nlefx Abnedr • 2 electrical hoists • 2 cylinder storage racks with 6 cylinders of various repeat sizes

Condition: used, This listing is for a Quattroflow QF 1200-S Single-use Pump diaphragm pump. The unit is in full working condition and is ready for immediate release. The Quattroflow QF 1200-S is a sophisticated quaternary diaphragm pump specifically engineered for sterile fluid transfer in the pharmaceutical manufacturing and biotech sectors. Its compact design and advanced features position it as a top choice for applications requiring precision and contamination control. Here’s a closer look at its characteristics, advantages, and applications: Key Characteristics: Flow Rate: Capable of handling flow rates of up to 1200 litres per hour, making it versatile for various processing needs. Eccentric Shaft Design: Offers 3° and 5° angles for adjustable flow rates, tailoring the pump’s performance to specific applications. Pump Chamber Material: Available in both stainless steel for multi-use and polypropylene for single-use, catering to different operational requirements and preferences. Control System: Features an integrated pump controller (Q-Control) that allows for automated control and monitoring, enhancing operational efficiency and precision. Interfacing Options: Compatible with various flow and pressure sensors, ensuring seamless integration into existing systems for real-time monitoring. Kdodpfxoxxy S Us Abnjr Model Variants: Includes several models such as QF30, QF150, QF1200, QF2500, and QF44, providing options to meet diverse process demands. Advantages: Low-Shear, Low-Slip, Low-Pulsation Performance: This design ensures the gentle transfer of critical biological fluids, preserving their integrity and functionality. Single-Use Positive Displacement Technology: Reduces maintenance costs significantly and enhances purification yields by minimizing the need for cleaning and validation. Total Product Containment: The unique seal-less design eliminates contamination risks and particle generation, ensuring the purity of the fluids being transferred. CIP/SIP-Capable and Autoclavable: Supports clean-in-place and sterilize-in-place protocols, making it suitable for sterile fluid transfer in highly regulated environments. Easy Installation and Replacement: The single-use pump chambers are quick to install and replace, streamlining workflows and minimizing downtime.

Condition: used, This listing is for a Varian 3900 GC With FID and 1041 Packed Injector The Varian 3900 gas chromatograph (GC) is designed to meet the demands of the analytical laboratory with its compact design—GC occupies less than half the workspace of the average gas chromatograph unit. Models 39001-00 and -05 feature an icon-based keypad which simplifies training and increases daily productivity. Select one of six pre-programmed languages for further ease-of-use. Password protection locks keypad from unauthorized access. Each Varian 3900 GC unit features a front access column compact oven with Precise Temperture Control which uses standard 7" (17.5 cm) diameter capillary columns. Maximum operating temperature is 450°C—accommodates any application. Plus, the oven cools down from 450°C to 50°C in only 5.2 minutes! Dimensions and Weight Size: 21.8 in./55 cm (h) x12.5 in./32 cm (w) x 22 in./56 cm (d) Weight: 59 lbs/26.8 kg Equipment can be serviced/renovated/refurbished on request at extra cost. Was previously used with a Perkin Elmer HS40XL Kdsdpsxzh A Hsfx Abnor

Condition: excellent (used), Year of construction: 1995, functionality: fully functional, working width: 1,400 mm, FLEXO PRINTER SCHIAVI ARIES 6 COLORS Geared central drum flexo printer 6 colors Materials that can be printed plastic films and paper Max. printing width 1400 mm Print repeat min/max 320/1080 mm Automatic turret rewinder Drying unit by gas Equipped with sleeves and aniloxes Kdedpoyrnmuofx Abnor Year 1995

Condition: good (used), Year of construction: 2002, GALLUS T 180 S by Graficon 5-Color Flatbed Screen Printing Machine with Hot Foil and Die-Cutting Dear Sir or Madam, We are pleased to offer the following Gallus T 180 S by Graficon, a highly versatile narrow-web label printing and converting machine equipped with five flatbed screen-printing units, hot-foil capability, lamination, and flatbed die-cutting. The machine is currently installed at the owner’s production facility and is offered for sale due to the planned acquisition of a new machine. Additional photographs and production videos are available upon request. _____ Machine Summary Description Details Manufacturer Gallus / Graficon Kdedpfx Abjzmhkuonor Model T 180 S Year of manufacture Approx. 1992 Complete overhaul 2002 by Graficon Printing process Flatbed screen printing Number of printing units 5 Maximum web width 200 mm Maximum printing width 180 mm Current condition Installed in factory, described as being in good condition Availability Subject to final confirmation Selling price EUR 49,000 Delivery terms Loaded on truck / ex current location, subject to confirmation FGT condition rating ★★★★★☆☆☆ 7/10 – _____ Why This Machine Is Interesting The Gallus T 180 S is a specialized narrow-web production system designed for high-value labels and technical products requiring strong ink coverage, high opacity, and tactile effects. The five flatbed screen-printing units allow the production of applications such as: • High-opacity white printing • Pharmaceutical and cosmetic labels • Industrial and technical labels • Security labels • Special-effect and tactile coatings • Metallic and decorative labels • Premium wine and beverage labels • Heat-resistant and durable labels The additional hot-foil, embossing, laminating, and die-cutting equipment makes this machine suitable for the complete production of finished labels in one production line. A major advantage is the extensive overhaul carried out by Graficon in 2002, during which the machine was reportedly rebuilt to an “as-new” condition. The printing units were also upgraded with servo drives, improving register control and production stability.

Condition: as good as new (ex-display), Year of construction: 2023, operating hours: 400 h, product width (max.): 450 mm, working width: 450 mm, Material width 450 mm Print width 445 mm Jumbo rolls D 1000 mm Print length 228.6 mm to 609.6 mm 8 flexographic printing units 8 UV cassettes 2x hot air drying Printing speed max 150 m/min Feed printing unit +/- 4 mm Punching width 450 mm Punching length from 304.8 mm to 609.6 mm Rewind diameter D 800 mm Materials to be printed: Self-adhesive labels (paper, PET, BOPP, PVC) Paper from 30 to 200 gsm Film from 20my (BOPP), 35 my PVC/PET, shrink 12 my PET Cardboard up to 400 gsm Accessories: 16 impression cylinders 8 anilox cylinders 1 die-cutting cylinder 1 IEEC corona treatment (one-sided) 1 Meech web cleaning unit (double-sided) 2 punching units optional 1 turning cross 1 Delam/Relam 1 Coldfoil unwinder 8 LED cassette dryer GEW Kedjqa Ax Nepfx Abnsdr We would be happy to make you an offer.

Condition: used, this listing is for Cytiva Axichrom 100/500 chromatography column the unit is in full working condition and ready for immediate use This pilot-scale column features automated axial compression for repeatable bioprocessing and downstream purification. Transparency report and technical audit: Software and media disclosure: as a direct-from-lab asset, any original software media or accessories found with the unit are included as a courtesy. licensing notice: we do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. 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. Kdodpfx Ajzqf E Rjbnsr Sustainability impact: By choosing direct reuse, your facility avoids the carbon footprint of new manufacturing

Condition: good (used), Year of construction: 2017, Ricoh Pro C9110 (HEIDELBERG) Year of Installation: 28/02/2017 Counter Readings: • Full Color: 6,018,662 impressions • Black & White: 3,510,065 impressions _____ Configuration • Ricoh Pro C9110 Digital Press • Feeding and stacking system Kjdey Idmwspfx Abnsdr • Integrated control panel • Including Plockmatic 350 finishing system _____ Technical Data • Printing Technology: Advanced laser system • Resolution: up to 1200 x 4800 dpi • Paper range: approx. 52–350 gsm • Wide media flexibility (coated/uncoated/special media) • Duplex printing • Production speed up to approx. 110 ppm _____ Finishing (Plockmatic 350) • Inline booklet production • Stitching and folding • Trimming unit • Professional finishing for short- and medium-run jobs _____ Condition • Well maintained • Fully operational • Can be demonstrated upon request _____

Condition: like new (used), Year of construction: 2011, OMET Varyflex VF1 Year of manufacture: 2011 Web width: 850 mm Printing process: Flexo + Rotogravure combination line Condition: Used – very good condition Location: Europe _____ Machine Configuration • 8 x UV flexo printing units (equipped with new UV lamps, LED-ready) • All flexo units in ATEX execution (suitable for solvent-based inks) • 1 x rotogravure unit (compatible with solvent- and water-based inks) • 1 x die-cutting unit (530 mm) • In-line slitting system • Double turret rewinder • Turn bar (web turning system) • Hot air dryer on first printing unit • Cold seal trolley (movable) • Cold foil unit (cassette type, positionable on any unit) _____ Equipment & Tooling • Extensive anilox roller package • Sleeve system (well maintained) • Tooling in very good condition Optional (available upon request): • Omet plate mounter • Bimec slitter rewinder 1200 mm (almost new condition) _____ Technical Highlights & Advantages The OMET Varyflex VF1 is a highly versatile production platform designed for both label and flexible packaging applications. Key advantages: • Wide web format (850 mm) – ideal for high-volume production • Hybrid configuration (flexo + rotogravure) for maximum flexibility Kjdpsyyn Hfjfx Abnjdr • ATEX design allows use of solvent-based inks • LED-ready UV system for future energy efficiency upgrades • Modular configuration with movable units (cold foil/cold seal) • Excellent condition with recently updated electronics (PLC, drives, control cabinets) • Proven application: previously used for polyethylene-coated materials (80–90 g/m²), ensuring reliability in demanding environments This machine offers an outstanding balance between performance and flexibility.

Condition: good (used), Year of construction: 2004, General information: • Manufacturer: Edale Ltd. (UK) • Model: Sigma • Year of Manufacture: 2004 • Condition: Very good, regularly serviced • Availability: Immediately Technical Specifications: • Printing units: 8 x UV flexo o Configurable as 8 front-side or 4 front + 4 reverse • Die cutting units: 2 • Web Width: 510mm • Conversion Options: Roll-to-roll and roll-to-sheet • Turn bars: 2 (for front/back printing) • Register Control: Included • Drying System: UV curing on all units • Inspection: Camera-ready setup possible • Applications: Labels, films, flexible packaging, paper and carton • Included Accessories: Magnetic cylinders, printing cylinders, anilox rollers Kodpfxowmfzgj Abnodr • Unwinder: Included • Rewinder: Included Additional details: • The machine is fully operational and has been well maintained. • Ideal for short to medium production runs with high flexibility. • All documentation available. _____ Technical and Optical Condition: • Technical: 9/10 (checked and in excellent running condition) • Optical: 8/10 (cleaned and ready for immediate end-user deployment) _____

Condition: excellent (used), Agilent 7890B gas chromatograph with autosampler, software, and computer included in the set. The device has only undergone testing and has not been used in operation. Kjdpfxsx A E D Ds Abnjdr

Condition: used, This listing is for Pharmacia Biotech BPG 140/500 Chromatography Column The unit is in full working condition and ready for immediate use The BPG 140/500 is a robust preparative chromatography column designed for laboratory and bioprocess purification applications. The 140 mm diameter and 500 mm column dimensions provide a substantial separation bed, with an approximate geometric volume of 7.7 litres. Suitable for protein and biomolecule purification using a range of chromatography media. Kedpezqf Dtofx Abnodr Transparency Report and Technical Audit: Software and Media Disclosure: As a Direct-from-Lab asset, any original software media or accessories found with the unit are included as a courtesy. Licensing Notice: We do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. 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. 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: refurbished (used), functionality: fully functional, Heavy duty ball valve pump Bottom ported Capacity: max. 988 LPM Solids handling: max. 22 mm Discharge pressure: max. 8.6 bar Displacement per stroke: 6.81 liter Connection style: 3" 125# ANSI Pipe size: 80 mm Kdjdpfx Abox Tqahensr

Year of construction: 2018, condition: like new (used), GRAFOTRONIC DCL2, Age: 2017/2018  Manufacturer : GRAFOTRONIC  Year of Installation : 2017 with Upgrade 2018  Max. width: 350mm  Unwinding diameter: 1000mm  Web edge control  Semi rotary printing unit Kjdpfsncfukox Abnjdr  GEW Drying UV  Semi-rotative die-cutting / drawn onto sheet metal  Laminating  Cold foil stamping  Labelshifter  Punching length: 609,6mm  Lattice proofing  manual knife box  Automatic Turret  2 x spindle

Condition: used, This listing is for GE Axichrom Master 300-1000 Control Tower + GE AxiChrom 300/300 mm Chromatography Column. The unit is in full working condition and ready for immediate use. Kodjxxycaopfx Abnedr Automated biopharmaceutical column packing system optimizing resin performance for purification

Condition: used, Year of construction: 2011, Printing & Processing Units: - 5 x EXL offset printing units (single) - 1 x Flexo printing unit (single) - 1 x EC printing unit on rail - 7 x UV drying stations (GEW HCP) - Corona S-unit - Die-cutting and laminating nip - Laminating unit – unwind / rewind Web Handling - Combination unwind / infeed unit S-1000 - Web cleaning unit (TEKNEK, single) - Web turner unit with backside reading - Combination outfeed / rewind unit S-1000 - Edge trimmer / crush cut unit Registration & Control - Single matrix unit - Double vertical die unit (SD) - Main control unit Kodpfsy Rp E Dex Abnedr - Web video powerscope 4000 (motorized) - ELTROMAT key adjustment system Auxiliary Systems - Technotrans water dampening system - Cooling water in / out for cooling rollers (UV system) - Exhaust air connection (max. 70 °C)

Year of construction: 1984, condition: good (used), BOBST I 130 ER Automatic Die-Cutting Machine Year of manufacture: 1984 2. Sheet Formats Maximum sheet size: 920 x 1,300 mm Minimum sheet size: 450 x 580 mm Working format: – Max. 890 x 1,270 mm (open chase) – Max. 900 x 1,300 mm (closed chase) 3. Material Specifications Maximum board thickness: 1.5 mm (cardboard) Minimum grammage: 90 g/m² Gripper margin: Kdodpfx Absycv Dvoner 10 mm 4. Chase Sizes – 915 x 1,300 mm chase without bar – 840 x 1,300 mm chase with bar 5. Pile Heights (Non-Stop Operation) Feeder pile height: Max. 1,500 mm with pallet Delivery pile height: Max. 1,400 mm with pallet Maximum pallet size: 900 x 1,300 mm 6. Equipment and Features – Suitable for carton and paper processing – Not suitable for corrugated board – Stripping possible using stripping frame and separation grid – EMS side lay system for alignment according to printed marks