Used Diener Electronic Gmbh Plasma Activation for sale (73,372)

Condition: good (used), We sell a used robot grinding machine. The plant is in good used condition. Included in the plant are: Ncedpfxoh T Dure Agpsu - 1x KUKA KR30-3 industrial robot - 3x belt grinders - 1x loading table If you have any questions, please do not hesitate to contact us!

Year of construction: 2023, condition: new, We sell a new double belt grinder. The contact wheels can be purchased in different dimensions. Technical data: Weight: approx. 350 kg Electrical connection: see type plate of the respective drive motor Compressed air connection: 3 - 8 bar Noise level: > 85 dB(A) Contact wheels: max. Ø 350 mm x 110 mm grinding belts: max. 120 mm x 3500 mm length Suction connection: Ø 160 mm Nedpfx Ask D Ex Togpjcu If you have any further questions, please do not hesitate to contact us!

Condition: good (used), We are selling a used robotic grinding and polishing system. The system is in good used condition. The system includes: - 1x YASKAWA MH20 industrial robot with NX100 controller - 2x belt grinding machines for grinding belts with a circumference of 3,500 mm - 2x polishing machines with oscillation and feed for polishing discs with a maximum diameter of 500 mm - 1x loading table for pallets with dimensions (LxW): 1,200 x 600 mm - 1x control cabinet Ncedpfexby Sgex Agpsu If you have any questions, please do not hesitate to contact us!

Condition: used, We are selling a used robotic grinding and polishing system. The system is in good used condition. The system includes: - 1x YASKAWA MH20 industrial robot with NX100 controller - 2x belt grinding machines for grinding belts with a circumference of 3,500 mm Ncodpfx Agsxlufvspju - 2x polishing machines with oscillation and feed for polishing discs with a maximum diameter of 500 mm - 1x loading table for pallets with dimensions (LxW): 1,200 x 600 mm - 1x control cabinet If you have any questions, please do not hesitate to contact us!

Condition: ready for operation (used), Year of construction: 2001, functionality: limited functionality, travel distance X-axis: 600 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 500 mm, controller manufacturer: Siemens, spindle speed (min.): 10,000 rpm, spindle speed (max.): 10,000 rpm, distance between spindles: 600 mm, number of spindles: 2, number of slots in tool magazine: 80, axle spacing: 600 mm, Equipment: chip conveyor, Schwäbische Werkzeugmaschine GmbH Twin-spindle machining center BA 600-2 Year of manufacture: Spindle distance: 600 mm Ncedpfszdq Scox Agpju Tool interface: 2 x HSK 100, 10,000 rpm The machine is still in production and can be inspected during ongoing production. Various repairs are required. 8-station hydraulic clamping system per tool changer.

Condition: new, Year of construction: 2026, We offer this roll-off platform in various lengths, available on request. ❌1 unit immediately available in RAL 7016 from stock❌ Color: as desired Delivery throughout Germany ---FINANCING---LEASE PURCHASE---LEASING--- -possible, please contact us!- Ncedpfxozgc Sae Agpeu Details: Usable area: 6500 x 2470mm Hook height: 157cm Hook diameter: 50mm Floor: 5mm checkered plate 2x material/tool box on the front wall Lateral UNP perforated strip 10 tie-down points recessed on the right (5) and left (5) in the floor, 2.5t/eyelet 2 tie-down points at 5.0t on the front wall Painting in desired color UVV approved and inspected What sets us apart from others? - Robot-welded component groups - All weld seams are continuous on the frames - All containers are bead-blasted - Double primed - Double coated - All containers have nameplates and valid UVV inspection.

Condition: good (used), Year of construction: 1991, Welding fume filter, Tebaron, TE 1200 – used - : Price ex location: €650 (net) Manufacturer: ISI Industrie-Produkte GmbH Model: TE 1200 Ncedpfx Ajyhxl Rsgpeu Year of manufacture: 1991 380V, 1.1kW, 2.6A, IP54 Condition: good Availability: immediately Location: Waltrop

Condition: used, Year of construction: 2016, functionality: fully functional, If you have any questions, you can contact me at any time by email. The facility is located in Laupheim. Nsdpfoya H Uyex Agpecu

Condition: new, Year of construction: 2025, functionality: fully functional, warranty duration: 12 months, Linear Scale: Gentle and Precise Filling Technology Our linear scale is the ideal solution for simple and precise dosing and filling of products. It combines accuracy with a gentle handling process. Thanks to minimal drop heights, product damage is effectively prevented, ensuring the quality of your goods—even with delicate products. Flexible and Efficient Operating Principle The core of our technology is a straightforward yet highly effective operating principle: Products are conveyed via linear belts or vibrating troughs and precisely dosed into weighing containers. Features: - Easy operation and cleaning - Convenient control via color touchscreen - Memory for various weighing recipes - Precise weighing results thanks to three-stage weighing (coarse / medium / fine), individually programmable - Tool-free format change - Intuitive scale design enables fast conversion and easy cleaning - Product-friendly – the reduced drop height protects fragile and sensitive products - Versatile – suitable for both food and non-food applications - Accurate dosing ensures consistent product quality - Robust and hygienic: parts made of stainless steel 304, easy to clean - Compact design and durable construction save space and reduce maintenance With our linear scale, you receive a reliable, precise, and hygienic solution that increases the efficiency of your production processes. Technical Data - Weighing range: 20 g to 2000 g - Accuracy: up to 0.5 g, depending on product - 4.5-liter weighing container - Max. speed: 30 weighings/min (2-head scale) Ncsdpfxswymlyo Agpsu - Material: stainless steel 304 - Connection: 220V / 50Hz / 6A Discover more weighing systems from Impuls Packaging: - Linear scales (1-head, 2-head, 4-head, incl. mixing systems for blending 2–4 products) - Multihead weighers with 10 to 32 heads and mixing systems for up to 8 products (control via the system or remote control through network connection, upgradeable to live camera monitoring) - Multipack systems with up to 36 heads and up to 8 simultaneous discharges - Systems for sticky, frozen, and meat products - Special scales for stick-shaped products (e.g. pretzel sticks) including product alignment - Weighing systems for large products like salads - Fine weighing systems for accuracies up to 0.1 grams - Auger fillers (1-stage or 2-stage weighing) and powder filling (accuracy of 0.3%–1%, including automatic recalibration in conjunction with a weighing system) - and much more.

Condition: excellent (used), Stations/Equipment: Unwinder Rewinder Extraction system incl. shredder (4x Lundberg Type WT200-200U - year 2018) Inert enclosure Busbar laminating unit Cutting units Laminating units / adhesive application units Heated rollers Master computer Control cabinets Drive motors Gantry crane Nsdpfsxzufhsx Agpjcu Corona treatment

Condition: excellent (used), Year of construction: 2019, Laser source: Manufacturer: SYNRAD, a Novanta Company Model: FSV40SFD Nsdpfoxzuimex Agpocu Type: V40 Series: firestar Year of manufacture: 2018

Condition: used, DHS 1-G / DHS1G, Feinmess Dresden GmbH Display Handling System SN:020702 Njdpfjq S Tdgox Agpecu Model: DHS1-G Condition: Used

Condition: good (used), functionality: fully functional, KNF Neuberger GmbH Mini diaphragm vacuum pump, N86 KN 18 Model: N86KN18 Contidtion: Used Technical Data: Njdpfjrigdqox Agpscu Laboport 230V AC 50Hz 0.65A 60W 2.4barü General: Flow rate (flow rate at atmospheric pressure): 6l/min Ultimate vacuum: 100mbar abs. Operating overpressure: 2.4bar Hose connection ID: 4mm Permissible gas and ambient temperature: +5 to +40 °C Mains: 230V AC / 50Hz Protection class of the motor: IP20 Motor power P1: 60 W Current consumption: 0.65 A Dimensions LxHxW: 164x141x90mm

Condition: used, 8113-000001b / 8113000001b, TF20.25-16B4 / TF202516B4, Oswald Elektromotoren GmbH Synchronous motor 47kW, 500Nm, S1 Njdpfjq S Tdyox Agpjcu Model: 8113-000001b Condition: Used

Condition: excellent (used), functionality: fully functional, Pfeiffer Vacuum GmbH Turbomolecular Vacuum Pump, PM P02 420 C, TMH 520 Model: PMP02420C Ncjdpfoxpu Sqex Agpou Type: TMH520 Condition: Used

Year of construction: 2017, condition: reconditioned (used), Hello, we are offering two refurbished IBS washing machines, type MAXI 78 and MAXI 91-2. In addition, the pumps have been resealed on these machines. Inspection and collection in Einbeck. The soiled items to be cleaned are placed in the rotating washing basket, and the lid is closed. After setting the desired washing temperature and time, the machine is switched on, and the washing solution in the tank is heated. In the closed machine, the basket rotates at a constant speed around its own axis. The pump units draw the washing solution from the washing tank and pump it through 6 stainless steel nozzle pipes with overlapping flat spray nozzles. The items to be cleaned are blasted from all sides with the hot solution during the uniform rotation of the motor-driven basket. After the cleaning process is completed, the machine switches off automatically. Advantages: Ncedpfx Agszcuxxopou 2 pumps arranged horizontally 6 three-dimensional nozzle pipes made of stainless steel robust stainless steel design additional small parts cleaning basket made of stainless steel (diameter 170 mm) rotating washing basket made of stainless steel, V-belt drive via separate motor fume extraction stainless steel sieve plate with filter basket above the washing tank low water level protection adjustable feet

Condition: new, Year of construction: 2026, operating hours: 10 h, machine/vehicle number: Parmel_06202P&C, type of input current: three-phase, total width: 2,200 mm, input voltage: 400 V, working width: 1,600 mm, YORK Single-Sheet Feeder Ncsdpfx Ageyh R Htepeu The YORK single-sheet feeder features a top-twist material feeding system that allows the material to be fed directly into the automatic cutter, ensuring a continuous and efficient production flow. Precision and Technology The YORK single-sheet feeder is equipped with a full-color, multilingual touchscreen control panel and dedicated control software for accurate and intuitive operation. The system can be electronically synchronized with virtually any automatic cutting machine, providing precise feeding control, reliable performance, and seamless integration into automated production lines.

Condition: new, Year of construction: 2026, operating hours: 10 h, functionality: fully functional, machine/vehicle number: Parmel_042026PA, type of input current: three-phase, total width: 2,504 mm, total length: 5,768 mm, input voltage: 400 V, feed length Y-axis: 2,500 mm, working width: 1,800 mm, total height: 1,330 mm, repeat accuracy: 0.01 mm, cutting width (max.): 1,600 mm, cutting height (max.): 50 mm, compressed air connection: 4 bar, BUFFALO Cutter – Fabric & Textile Cutting Machine Our BUFFALO Cutters are the ideal solution for the precise cutting of textiles, leather, technical fabrics, and composite materials. With state-of-the-art CNC technology, they guarantee: • Highest cutting precision for patterns, prototypes, and series production • Flexibility for different materials and formats • Efficiency through short setup times and automated processes Whether in the fashion, furniture, or automotive industry – our fabric & textile cutting machines deliver perfect results with maximum productivity. Model PC W16L25 • Single-layer cutting up to 50 mm height • Working area (W × L): 1600 mm × 2500 mm • 2 cutting heads, double cutting head, needle punch, and plotter pen holder • Tool kit: ERT, EOT, VPT (electric rotary knife, oscillating knife, punching module) • KIS (Knife Initialization System) • Vacuum pump • Air compressor • Passive roller feeder for non-elastic fabrics • Parmel Cutting Software • 12 months warranty Njdpfxezf Ifvj Agpocu We offer installation, training, spare parts, consumables, and guarantee smooth operation both during and after the warranty period.

Condition: used, Year of construction: 1988, functionality: fully functional, Gear Grinding Machine VEB ZSTZ 630 C 3 P – 1988, Ready to Operate Description: For sale: gear grinding machine from the German manufacturer VEB Werkzeugmaschinenkombinat, model ZSTZ 630 C 3 P, year of manufacture 1988. The machine is in good technical condition, available immediately, and ready for inspection. Currently connected to power, allowing immediate testing of its operation. Ideal for workshops specializing in precise gear machining and industrial machine repair. Specifications: Manufacturer: VEB Werkzeugmaschinenkombinat Model: ZSTZ 630 C 3 P Ncodpfx Aeyfq E Hjgpsu Year of manufacture: 1988 Condition: good technical condition Availability: immediate Ready for inspection, connected to power Contact: Please contact us for inspection arrangements or further information.

Condition: new, Year of construction: 2026, operating hours: 1 h, functionality: fully functional, shaft length: 1,064 mm, input voltage: 230 V, type of input current: AC, laser power: 50 W, type of cooling: air, total width: 1,500 mm, total height: 2,050 mm, total length: 900 mm, working range: 600 mm, overall weight: 120 kg, warranty duration: 12 months, height adjustment type: electric, door opening width: 700 mm, door opening height: 400 mm, scan area length: 150 mm, scan area width: 150 mm, table length: 600 mm, table width: 600 mm, space requirement width: 1,550 mm, space requirement height: 2,100 mm, laser wavelength: 1,064 nm, working height: 950 mm, input frequency: 50 Hz, The universal laser marking system LAS 28 XLe from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes integrated PC with Windows operating system and laser software. Optionally, the laser model LAS 28 XLe can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extension arms for marking long parts, movable Z-axis, drawer systems, etc., can be realized. Made in Germany Fiber laser 50 Watt - Laser class 1 - Wavelength 1064nm - Marking field size 150x150mm (optionally larger) - Signal light for displaying operating status - optional: rotary axis (3-jaw chuck) - optional: extraction system (incl. activated carbon filter) - optional: digital height measuring system - optional: autofocus - EZCAD marking software in German / English (other software available on request) Nodpfx Agey Urpyopscu - Pilot laser (simple preview, plain text preview) - Focus finder (simple focus adjustment) - max. component height approx. 300mm - Electrically adjustable Z-axis - Integrated PC with Windows operating system - Height-adjustable screen and keyboard support - Frame made of aluminum profile - Air-cooled - Door width approx. 700mm / door height (pass-through): approx. 400mm - 230V connection - Dimensions: approx. 900 x 800 x 1900 mm (LxWxH) with screen holder approx. 1500 x 800 x 1900mm (LxWxH) - Weight: approx. 120 kg

Condition: new, Year of construction: 2026, functionality: fully functional, input voltage: 230 V, type of input current: AC, laser power: 30 W, type of cooling: air, total width: 1,550 mm, total height: 2,050 mm, total length: 900 mm, overall weight: 120 kg, door opening height: 400 mm, scan area length: 150 mm, scan area width: 150 mm, travel distance Z-axis: 300 mm, space requirement width: 1,550 mm, space requirement height: 2,050 mm, laser wavelength: 1,064 nm, ambient temperature (min.): 15 °C, ambient temperature (max.): 35 °C, input frequency: 50 Hz, laser type: fiber laser, The universal laser marking system LAS 28 XLe from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 20, 30 or 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes integrated PC with Windows operating system and laser software. Optionally, the laser model LAS 28 XLe can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extension arms for marking long parts, movable Z-axis, drawer systems, etc., can be realized. Ncodpfxsxd Az Nj Agpou Made in Germany Fiber laser 30 W, 20 W or 50 W - Laser class 1 - Wavelength 1064nm - Marking field size 150x150mm (optionally larger) - Signal light for displaying operating status - optional: rotary axis (3-jaw chuck) - optional: extraction system (incl. activated carbon filter) - optional: digital height measuring system - optional: autofocus system - EZCAD marking software in German / English - Pilot laser (simple preview, plain text preview) - Focus finder (simple focus adjustment) - max. component height approx. 300mm - Electrically adjustable Z-axis - Integrated PC with Windows operating system - Height-adjustable screen and keyboard support - Frame made of aluminum profile - Air-cooled - Door width approx. 700mm / door height (pass-through): approx. 400mm - 230V connection - Dimensions: approx. 900 x 800 x 1900 mm (LxWxH) with screen holder approx. 1500 x 800 x 1900mm (LxWxH) - Weight: approx. 120 kg

Year of construction: 2026, condition: new, functionality: fully functional, total length: 900 mm, total width: 1,550 mm, total height: 1,900 mm, input voltage: 230 V, laser power: 30 W, laser wavelength: 1,064 nm, type of cooling: air, type of input current: AC, The universal laser marking system LAS 28 XLe from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 20, 30 or 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes an integrated PC with Windows operating system and laser software. Optionally, the laser model LAS 28 XLe can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extension arms for marking long parts, movable Z-axis, drawer systems, etc., can be realized. Made in Germany Fiber laser 30W, 20 W or 50 Watt - Laser class 1 - Wavelength 1064nm - Marking field size 150x150mm (optionally larger) - marking software EZCAD in German / English - optional: rotary axis (3-jaw chuck) - optional: digital height measuring system Nedpfxeunh H Sj Agpecu - optional: autofocus system - optional: exhaust system (incl. activated carbon filter) - pilot laser (simple preview, contour preview) - focus finder (simple focus adjustment) - signal light for indication of operating status - max. component height approx. 300mm - electrically adjustable Z-axis - Integrated PC with Windows operating system - frame made of aluminum profile - air cooled - Door width approx. 700mm / door height(pass-through): 400mm - Connection 230V - Dimensions: approx. 900 x 800 x 1900 mm (LxWxH) - Weight: approx. 100 Kg

Condition: like new (used), functionality: fully functional, Year of construction: 2024, overall weight: 160 kg, total length: 1,300 mm, total width: 800 mm, total height: 1,930 mm, input voltage: 230 V, input frequency: 50 Hz, laser wavelength: 10,600 nm, type of input current: AC, laser type: CO₂ laser, Equipment: lighting, With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realised with just a few clicks and without extensive programming knowledge. The software automatically counts up serial and article numbers once they have been set. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer it to predefined areas. The use of a hand scanner is also possible. The standard equipment includes a laptop incl. holder with Windows operating system. The LAS 28 laser model can optionally be equipped with a rotary axis (3-jaw chuck) for labelling cylindrical parts. Other options, such as lateral cantilevers for labelling long parts, can also be realised. 30W CO2 laser (optional: 60 W) - Wavelength 10640nm - marking field size 220x220 mm Ncodpfx Ajwkpyhogpeu - optional: rotary axis (3-jaw chuck) - optional: exhaust system (incl. activated carbon filter) - optional: extension arm for large workpieces (also on both sides) - marking software EZCAD in German / English - Pilot laser (simple preview) - focus finder (easy focus adjustment) - max. part height approx. 300mm - electrically adjustable Z-axis - Laptop incl. holder with operating system Windows - frame made of aluminum profile - air cooled - door width approx. 720mm / door height: 400mm - Connection 230V - Dimensions: approx. 1000 x 800 x 2000 mm (LxWxH) - Weight: approx. 140 Kg

Year of construction: 2026, condition: new, functionality: fully functional, overall weight: 45 kg, total length: 600 mm, total width: 400 mm, total height: 690 mm, input voltage: 230 V, input frequency: 50 Hz, laser power: 20 W, laser wavelength: 1,064 nm, scan area length: 110 mm, scan area width: 110 mm, type of cooling: air, type of input current: AC, laser type: fiber laser, The LAS 22 is a compact tabletop unit with a small working area, ideally suited for small parts. Due to its small size, the unit is very practical and can be used anywhere. The device is very easy to operate without programming knowledge. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks and without extensive programming knowledge. Serial and item numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a handheld scanner is also possible. Nedpey Emthjfx Agpscu The standard equipment includes a laptop with Windows operating system and laser software. Optionally, the laser model LAS 22 can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. - Fiber laser 30 Watt (Optional: 20 Watt) - Laser class 1 - Wavelength 1064nm - Marking field size 110 x110mm - marking software EZCAD in German / English - Pilot laser (simple preview/contour) - Focus finder (simple focusing) - Max. Component height approx. 95 mm - Grid holes for fixtures - Clamping area 310x190mm - Electrically adjustable Z-axis - Electric door with pinch protection - optional: exhaust system (incl. activated carbon filter) - Welded steel plate construction - Connection 230V - Air cooled - Laptop with Windows operating system (German or English) - dimensions: LBH 600x 400x 690 mm - weight: approx. 45 Kg - low operating costs - marking of various materials

Year of construction: 2026, condition: new, functionality: fully functional, overall weight: 100 kg, total length: 800 mm, total width: 600 mm, total height: 1,660 mm, input voltage: 230 V, input frequency: 50 Hz, laser power: 20 W, laser wavelength: 1,064 nm, type of cooling: air, laser type: fiber laser, The universal laser marking system LAS 28 from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 20, 30 or 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes a laptop incl. holder with Windows operating system. Optionally, the laser model LAS 28 can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extensions for marking long parts, can be realized. Made in Germany - Fiber laser 20W (Optional: 30W, 50W) - Wavelength 1064nm - marking field size 150x150mm (optional: 200x200) - optional: rotary axis (3-jaw chuck) - optional: digital height measuring system Ncjdpfov Sybyox Agpju - optional: exhaust system (incl. activated carbon filter) - optional: Autofocus system - signal light for indication of operating status - marking software EZCAD (optional additional laser software) - Pilot laser (simple preview, contour preview) - focus finder (simple focus adjustment) - max. part height approx. 270mm - electrically adjustable Z-axis (adjustment of working plane) - frame made of aluminum profile - connection 230V - air cooled - Laptop with Windows operating system - dimensions: 800x 600 x 1660mm (LxWxH) - weight: approx. 80 Kg