Used Advertising Material for sale (17,550)

Condition: used, Colour: Red Field of application: Mining Take your material processing capabilities to the next level with Polygonmach’s Fine Material Washer. Known for their engineering excellence and innovative solutions, Polygonmach has yet again pushed the boundaries with their advanced Spiral Classificator and Screw Washer. Designed for maximum efficiency and performance, this system offers an unmatched processing solution for a variety of materials. The Polygonmach Fine Material Washer, also known as Spiral Classificator or Screw Washer, is a powerful tool for sand classification and dewatering duties. It is specially designed for washing, classifying, and dewatering fine material as well as for scrubbing and expelling clays and silts from raw materials. The design offers a high level of cleaning, improving the quality of your end product. While it is mainly used for cleaning and handling of sand and gravel, it also works with many other minerals. When you need the highest level of cleaning, this washer is your go-to solution. Ksdpsw Hzpmjfx Afijdu The Polygonmach Fine Material Washer's superior design ensures optimal performance. It features replaceable, wear-resistant paddles that enhance the machine’s longevity. The system also comes with an adjustable weir and water volume to meet your specific washing needs. To achieve the desired results, the Polygonmach Fine Material Washer is equipped with a heavy-duty design and construction. It is highly efficient, delivering precision, and accuracy in its operations. Despite its robust construction, it is easy to maintain and has low operational costs.

Condition: excellent (used), power: 115 kW (156.36 HP), fuel type: diesel, color: green, Year of construction: 2021, operating hours: 4,800 h, Year of manufacture: 2021 Number of cylinders: 4 Empty weight: 19.000 kg Technical condition: very good Visual appearance: very good Price: On request Serial number: 818.0.2803 Emissions class: Stage V Please contact Ferdinand Pater for more information Stock no. D28 Machine Brand Sennebogen Type: 818ME-series Weight: 19 Ton Serial number: 818.0.2803 Building year: 2021 Worked hours: 4700 Kdedpfx Afjt Dluljiju Engine: Cummins QSB 4.5 Stage V 115kW at 2200rpm Boom: K9 ULM, 5.3 meter boom, 3.8 meter grab stick with ULM Cabin: Maxcab, Hydraulic Cab Riser, 2,7 m. Upper carriage: Standard Sennebogen color, complete new spray paint, Central greasing system Undercarriage: Mobile, 8 full rubber tires 10,00-20 with 4 outriggers Lights: Several (LED) lights on boom, stick and cabin Extra: Machine is serviced and clean, ready for work

Year of construction: 2023, condition: good (used), Top condition – with warranty Special equipment available on request. Price: On request Kdodjw Hycrjpfx Afieu The ideal attachment for wheel loaders to evenly distribute material such as concrete, asphalt, bulk goods (sand, grit, gravel, topsoil, salt, etc.) via a conveyor belt. Possible areas of application include road construction, pipeline and sports field construction, as well as municipal use. Cost-effective alternative to a berm paving machine. General description (including photos and application videos) and technical data for the product can be found on our Optimas website. The photos are for illustrative purposes and do not show the actual products for sale. If you are interested, please feel free to contact us at any time by phone or email.

Condition: good (used), Material test stand / final inspection  consisting of the following main components   Keyence XG-H500M Digital 5 million pixel B/W camera  Keyence XG-7701P Multi-camera image processing system/controller Keyence CA-DC21E Illumination Controller   Opto Engineering TC23096 Bi-telecentric lens  Keyence XG-H500M Digital 5 million pixel B/W camera  CCD: 2/3-inch monochrome CCD, squareElement all pixels 11x reading speed, 5,050,000 pixels Scan method: Progressive (61.2 ms), interlace (40.3 ms)Interlace is a binning process that sums the odd lines and even lines. Model CA-DC21E Illumination Controller   Type Illumination Controller For XG/CV-5000/CV-X200/CV-X100 Series only Input: Forced lighting cut-off: Input voltage max. 26.4 V, min. 2 mA Output Light control method (1) Constant voltage control method (DC lighting) (2) Pulse-width modulation method (emission frequency: 100 kHz) [Change of control unit setting]. Brightness levels 255 levels digital [change of control unit setting] Number of connections Number of connections 2 channels (available for LED connection and terminal block connection) Voltage 12 VDC/24 VDC [setting via DIP switches] Power Max. 40 W (30 W per channel) Synchronisation Synchronisation via FLASH output/continuous illumination [change of control unit setting] Response time (1) Constant voltage regulation: Max. 10 ms for 12 V output, Max. 20 ms for 24 V output (2) Pulse width modulation method: Max. 1 ms with 12-/24-V output. Display LED display Supply voltage 24 VDC ±10 % Current consumption 3.0 A (12 V output at maximum load), 6.5 A (24 V output at maximum load)*1 Keyence xg-7701p Multi-Camera Image Processing System/Controller TC23096 Bi-telecentric lens for 2/3" detectors, magnification 0.093 x, C-mount Magnification (×) 0.093 Image circle Ø (mm) 11.0 Max detector size 2/3" Working distance (1) (mm) 278.6 wF/# (2) 8 Typical telecentricity (max) (3) (deg) < 0.06 (0.08) Typical distortion (max) (4) (%) < 0.04 (0.08) Depth of field (5) (mm) 77 CTF 70 lp/mm (%) > 40 Image area of the object (6)     with 1/3″ detector (4.8 x 3.6 mm) (mm × mm) 51.61 x 38.71 with 1/2.5" detector (5.70 x 4.28 mm) (mm × mm) 61.29 x 46.02 with 1/2″ detector (6.4 x 4.8 mm) (mm × mm) 68.82 x 51.61 with 1/1.8″ detector (7.13 x 5.33 mm) (mm × mm) 76.67 x 57.31 with 2/3″ - 5 MP detector (8.50 x 7.09 mm) (mm × mm) 91.40 x 76.24 Dimensions Mount C Phase adjustment (7)         Length (8) (mm) 336.6 Kodpfx Aeg Sxmfofisdu Diameter (mm) 143 Weight (g) 2500 Complete factory closure, large selection of storage platforms, pallet racks, shelf racks, paternosters. High-quality industrial machines, lathes, grinding machines, hand machines. Further articles - new and used - you will find in our shop! International shipping costs on request!

Condition: not inspected (used), functionality: fully functional, Wooden crate with nuts, bolts, screws, and other fasteners. 820kg (weight is excluding the wooden crate) Lot includes the wooden crate. Kodew Hrw Iopfx Afisdu

Condition: new, Year of construction: 2022, Model DPL-1530HP-4 kW 8 levels 3000x1500mm (300kg load per level) Loading and unloading system Laser Raycus 4 kW Control system FSCUT 2000ER Laser head Raytools BM115 autofocus Cooler Hanli 3.8 kW Air blower 11kW Nesting software Cypnest-Nesting software Low pressure gas alarm gas pressure monitor and SW control Voltage stabilizer 48-72 KVA Laser class 4 enclosure Heavy duty machine base. High power servo motors. Intelligent cutting control system, easy operation Fast tacking, supported by segment and step tacking technology. Specialized air duct with oversized caliber, makes the smoke exhaust smooth. Completely enclosed construction European CE standard Dual shuttle tables provide a high level of safety and convenience. Positioning accuracy ±0.05/1000mm Repeat positioning accuracy ±0.03/1000mm Acceleration 1.6 m/s² Max. Speed 120 m/min Sheet loading 1500Kg Size 8907×2813×2658 mm Laser power 6000 W Control system FSCUT 2000 machine power 32-48 kW Voltage 380V/50Hz Delivery time 5 months (construction time + transport) delivery to customer's yard 3.500€ Kdjdpfeci Ik Ssx Afiju Installation and training 8.850 € Industry 4.0 software 9.500 € FILTERCUBE 2H, 4,0 kW, 40 m² 10.500,- € The Filtercube series is an extraction system equipped with filter cartridges, in the field of smoke filtration and dusts.

Condition: used, New: Yes Colour: Blue Field of application: Mining Empty weight: 35.000 kg Dimensions (LxBxH): 1400 x 400 x 250 cm Runnning hours: 16777215 mh Kjdpfxjw Hzd Rj Afisdu Volume of the tank: 30 m^3 Capacity: 350 Productivity: 300 tph (1400 x 14000) Double Washing Screw: (With SKF AUTOMATIC LUBRICATION) Water Consumption : Minimum 100 Ton/Hour – Maximum150 Ton/Hour Capacity 300-350tph Screw Dimensions Ø1400 x 14.000 mm Motor :2x45/55 KW Drive System :Chained Drive System Roller : SKF Abbrasive : 6 mm on iron plate 10 mm Rubber Coated Discharge : Ø200 mm Pipe Discharge Channel : 2 PCS 120 mm 150 mm 5mm U Bend Platform : Ladder for Pre Maintenance and Safety Weight 35000kg Paint PPG or Jotun 2 Layer Paint on1 layer Epoxy Lining RPM 25 Degree 15 Dimensions 4400x15500x2600mm Housing Bearing Water Resistance SKF-FAG BEARING 6 PCS

Condition: excellent (used), fuel type: diesel, color: green, Year of construction: 2020, operating hours: 5,180 h, General information Year of manufacture: 2020 Model year: 2020 Technical information Number of cylinders: 4 Engine capacity: 4.500 cc Drive: Wheel Empty weight: 19.000 kg Functional CE mark: yes Condition Technical condition: very good Visual appearance: very good Financial information Price: On request Other information Emissions class: Stage V Additional information Please contact Ferdinand Pater for more information Stock no. D28 Machine Brand Sennebogen Type: 818ME-series Weight: 19 Ton Serial number: 818.0.2716 Building year: 2020 Worked hours: 5180 Engine: Cummins QSB 4.5 Stage V 115kW at 2200rpm Boom: K9 ULM, 5.3 meter boom, 3.8 meter grab stick with ULM Cabin: Maxcab, Hydraulic Cab Riser, 2,7 m. Upper carriage: Standard Sennebogen color, complete new spray paint, Central greasing system Undercarriage: Mobile, 8 full rubber tires 10,00-20 with 4 outriggers Ksdpfx Ast Dlxwsfiodu Lights: Several (LED) lights on boom, stick and cabin Extra: Machine is serviced and clean, ready for work

Condition: excellent (used), functionality: fully functional, Year of construction: 2012, operating hours: 16,970 h, LIEBHERR A924C. YEAR: 2012. HOURS: 16,970. HYDRAULIC CABIN. FOUR STABILIZERS AND BLADE. INDUSTRIAL BOOM. INDUSTRIAL STICK. SOLID TYRES. WITH GENERATOR. OPTION FOR GRAPPLE. CE CERTIFICATE. VERY GOOD OVERALL CONDITION. Kjdsw Ev Dvopfx Afijdu

Condition: excellent (used), Year of construction: 2016, Type BAFAG ATU 25 Kjdpfx Afouvg Dxjiedu Power 2 kW Material conveyor Labotek Power 1.1 kW

Condition: excellent (used), Here we offer you an Objet Stratasys 3D printer. The Objet Connex 500 is the pioneering multi-material 3D printer from Objet. With a large footprint of 500 x 400 x 200 mm, designers and engineers can quickly prototype, to more closely simulate the intended end product than any other technology. What is unique about the Objet Connex? With Objet's patented simultaneous multi-material molding technology, the Objet Connex 500 can produce print models from up to 14 different materials in a single print job. The system is ideal for designers and engineers who want to effectively highlight the different material components in complex or composite products. Freedom to choose your own materials The Objet Connex500 offers an unmatched selection of over 60 materials, including up to 51 Digital Materials ™. It allows users to simulate various mechanical and physical properties, from rubber to rigid, opaque to transparent; and standard to ABS engineering plastics. Outstanding productivity Kdjdpfx Afeg S A N Tjiju The Objet Connex 500 offers: - Multi-material models - no more designing, printing and gluing together separate model elements. - Different parts. Different materials. Same tray - saves time and serves multiple needs at the same time. - Excellent 16 micron high resolution printing accuracy - 600 DPI X & Y resolution - Thin walls

Condition: used, Year of construction: 2023, Weights Empty weight: 174 kg Functional Kdodpfetr Ilxex Afieu Mast: articulated arm Lifting capacity: 350 kg Identification Serial number: 09-237302 Other information Front tyres / undercarriage remaining: 0 Rear tyres remaining : 0 Tyre brand: - Max. horizontal reach: 0 m Transport dimensions (LxWxH): 0x0x1.87 Additional information Please contact PFEIFER GROUP for more information

Year of construction: 2009, condition: like new (used), functionality: fully functional, Still in CLEANROOM at the moment!!! with S!MPATI software with vacuum connection Vötsch Drying Cabinet VTLF 160/150/110. Max temp 190°C. Drying format 1000x1400 mm. Stainless steel equipment. Filter H13. Function The VTLF cleanroom dryer for coating materials is designed and constructed according to EN 1539. After the load has been placed in the dryer and the doors are closed, the circulating air flows around the load in the dryer's usable space. The turbulent flow ensures good and spatially uniform heat transfer to the load. Technical Specifications Interior (usable space) m3 2.78 Internal dimensions Width Height Depth mm 1600 1500 1100 Weight (net) kg approx. 1400 Recirculation fan speed Min. setting range Max. setting range % 50 120 Kdjdpfxsv T I I Ro Afisu Minimum exhaust air flow rate (extraction mode) Reduced exhaust air flow rate (recirculation mode) m3/h 360 90 Flushing time 5 air changes per second 300 Total steam volume m3 4.5

Condition: as good as new (ex-display), functionality: fully functional, Year of construction: 2006, machine/vehicle number: 6770-22060, LEICA 6770 - Beam Aligner Kodpfjthlausx Afiedu The equipment is NEW, it has never been used!!!

Condition: new, Make: S&F GmbH Type: MFB-500/5 Belt width: 500 mm Centre distance (A-A): 5,000 mm Conveying capacity: approx. 30 - 40 m³/h (at 0 ° incline) Drive: worm gear motor Motor power: 1.5 kW, 400 V, 50 Hz Belt speed: approx. 1.1 m/s Drive drum: Drum diameter 220 mm Tensioning drum: Drum diameter 220 mm with spindle tensioning station Belt: EP 250/2 2:1 rubber inclined conveyor belt with V-profile (15 mm) Machine weight: approx. 450 kg Machine colour: RAL 6009 Fir green Suitable for the following bulk materials, among others: Kodew Ad Rrspfx Afiodu Wood chips, sawdust and sawdust, biomass, wood pellets, charcoal, waste wood, bark, soil, humus, recycling material, cross-cuts and much more. Accessories (optional): Feed hopper (filling hopper), inner belt scraper, chassis, tow bar, steel support, electrical installation (16 A plug-in switch) Troughed conveyor belt | troughed belt conveyor | conveyor belt | bulk material conveyor | belt conveyor | inclined conveyor belt

Condition: ready for operation (used), Year of construction: 2004, ARBURG Thermolift 100-2 – Dryer and Material Loader – 70 L – 6.2 kW – Made in Germany For sale: a reliable device for plastics processing – ARBURG Thermolift 100-2, fully operational and ready for immediate use. Manufactured in October 2004, industrial-grade build, German quality. ● Bin capacity: 70 L ● Year of manufacture: 10/2004 ● Supply voltage: 400 V / 3 phase / 50 Hz ● Heating power: 4.5 kW ● Blower: 1.68 kW ● Total power requirement: 6.2 kW ● Weight: 200 kg Kdodpfxsvi H Stj Afiju ● Model: Thermolift 100-2 ● Serial number: 304380 Complete unit with electronic controls, mounted on transport casters. Excellent solution for use with injection moulding machines. Very good visual and technical condition.

Year of construction: 2009, condition: excellent (used), The Objet Connex 500 is Objet's groundbreaking 3D printer for multiple materials. 500 x 400 x 200 mm in size, designers and engineers can quickly create prototypes to simulate the intended end product closer than any other technology. What's unique about Objet Connex? With Objet's patented simultaneous multi-material spray technology, the Objet Connex 500 can print models of up to 14 different materials in a single print job.The Objet Connex500 offers an unmatched selection of over 60 materials, including up to 51 Digital Materials ™.It allows users to simulate various mechanical and physical properties, from rubber to rigid, opaque to transparent; and standard to ABS engineering plastics.Outstanding Productivity The Objet Connex 500 offers:- Multi-Material Models - No need to design, print, and glue separate model elements- Different parts- Multiple materials models - No need to design, print, and glue separate model elements- No need to design, print, and glue separate parts- No need to select your own materials to effectively highlight different material components in complex or composite products. Different materials. Same compartment - saves time and meets multiple requirements simultaneously - Excellent 16 micron high resolution pressure accuracy - 600 DPI X Kdjdpfxod Sukxo Afiju

Year of construction: 2011, condition: excellent (used), functionality: unexamined, machine/vehicle number: 24, For sale: Mixer – Raw material agitator from a pellet production line. Thanks to the mixer, the material supplied to the pellet mills is homogeneous. Line capacity where the agitator was used: approx. 8 t/h Mixer dimensions: External length: 6150 mm, External width: 1760 mm, External height: 2740 mm, Internal length: 5000 mm, Internal width: 1490 mm, Internal height: 1750 mm, Ribbon diameter: approx. 1400 mm, Motor power: 22 kW, Agitator price: 25,000 Euro, Kdjdpfswxatbsx Afiou We also offer a bag filter for the mixer, as shown in the production line photos. Filter price: 7,000 Euro, The machine can be inspected in: Sępólno Krajeńskie, Kuyavian-Pomeranian Voivodeship, Poland.

Condition: used, Forge grab, manipulator forge grab, sheet metal clamp, sheet metal claw, beam clamp, beam claw, sheet metal grab, material grab, material grab -Tin claws Kdsdsdavnzopfx Afiju -Wingspan: 0 to 250mm -Load capacity: 1,000 kg -Number: 1x available -Dimensions: 730/240/H860 mm -Weight: 118kg

Condition: used, functionality: fully functional, empty load weight: 1,000 kg, loading space length: 5,940 mm, loading space width: 2,000 mm, loading space height: 2,000 mm, Used 12 m² material container made of galvanized trapezoidal sheet metal Large material storage container, 6 x 2 meters, with eyebolts. Long service life due to fully galvanized construction. Spot-welded and sealed, providing high corrosion protection. Particularly burglar-proof, doors cannot be forced open. Ksdpfowl Dqkox Afijdu Internal width: 5940 mm • Internal depth: 2000 mm • Internal height: 2000 mm • Exterior wall and roof construction: Galvanized trapezoidal sheet metal • Interior wall construction: Galvanized trapezoidal sheet metal • Interior ceiling construction: Galvanized trapezoidal sheet metal • Floor construction: Wooden flooring made of tongue-and-groove planed boards • Roof drainage: Via longitudinal gutters • Door design: Double-leaf doors

Condition: good (used), Used machine, good condition. Delivery time appr. 16 weeks after ordering Basic machine starts at 139.700 € net *Options at additional cost, see below Briquetting press e.g. for wood dust, spelled husks, activity material (e.g. for pigs to play and nibble around), animal feed, lucerne or wood shavings. *Optionally, short briquette tablets can be made Technical specifications: Throughput capacity up to a maximum of 750 kg/h (depending on the material) (e.g. sawdust with a bulk density of 250 kg/qbm) An exact statement about the throughput is only possible after a test with your material. Can vary greatly depending on the bulk density of the starting material. Goods tariff number: 84793010 Briquette Ø 65 mm including 2 m press channel Engine power main engine 37 kw Feed screw geared motor 2.2 kw Compressor screw 5.5 kw Hydraulic pump motor 0.37 kw Total connection value: approx. 47 kW Control panel with plain text display for operating states and utilization indicator for the main drive and feed screws PLC control with operating hours counter in the control cabinet Machine has CE mark Automatic start-stop function Dimensions 3100x860x1800 mm lxwxh Weight 3800kg Options at extra cost: Temperature control unit for the pressing tools to maintain the temperature for optimal briquette quality. Temperature controller for pump, cooling unit, fan, pressostat Wired ready for connection - absolutely necessary for operation including the corresponding control + €7,850 net guillotine or pill crusher, for cutting the briquettes to length + €6,900 net Necessary for compressed air connection! Silo for MAP series + €19,940 net - Storage silo above the machine - Content approx. 6 sqm, stable steel construction with agitator discharge and level indicator. Transport line / cooling section (nominal value: 4x2m) each 2 meters 990 euros net Control System 4.995 € net Assembly / commissioning (nominal value approx. 2-3 days on site) according to expenditure on proof against separate calculation. The following sentences apply: Service technician/mechatronics technician per hour of assembly and travel: €129.00 Overtime: 25% surcharge 50% surcharge for each Saturday and night hour 100% surcharge for each Sunday and holiday hour Release per mechanic per day: depends on the country Per car and van and driven kilometer: 0.98 € / km Arrival and accommodation against receipt or flat rate billing at the expense of the client. . Test with the respective customer material: (by arrangement, up to a maximum of 750 kg) - 1,970 € net Kdjdpfjfmqq Eex Afisu . Raw material requirements: - The moisture content (atro) must be between at least 6 and a maximum of 15% - Maximum chip length 18 mm - Installation temperature: room with a temperature of at least +5°C - The charge must be free of metals and mineral impurities. This can result in damage to the pressing tools and/or increased wear

Condition: new, Year of construction: 2025, Belt conveyor type BASIC Belt width: 340 mm Total width: 455 mm Centre distance: 2,500 | 3,300 | 4,500 | 6,000 mm Total length: 2,800 | 3,600 | 4,800 | 6,300 mm Conveyor belt height: 250 mm Total length: centre distance + 300 mm Drive: drum motor Motor power: 0.55 kW, 3 x 240 V, 50 Hz Maximum load: 200 kg Kedpohhfnkofx Afiodu Belt speed: 0.2 - 0.8 m/s Belt: Rubber conveyor belt EP 250/2 2:1 Weight: 61 - 103 kg Accessories for BASIC, CU & CCU-Line (optional): Chassis, hopper, hopper extension, support legs 1.2-2.0 m, CCU/CU extension cable for series connection, adapter cable (CEE and Schuko plug) L = 1 m

Condition: excellent (used), Labotek Type: FMD-M-M-15-15-V Model 101134 The Labotek FMD-M-M-15-15-V model is part of the FMD-M series by Labotek, a leading manufacturer of material drying, dosing, and conveying systems for the plastics industry. The FMD-M series comprises modular dryers designed for processing plastic granules. Technical Specifications of the FMD-M Series Model designation: FMD-M 15/15 Dimensions: 80 x 120 x 120 cm Net weight: 88 kg Shipping weight: 113 kg Shipping dimensions: 80 x 120 x 120 cm Shipping volume: 1.15 m³ These dryers are specifically designed for processing plastic granules and are characterized by their modular construction, allowing flexible adaptation to a wide range of production requirements. Voltage: 3x400 Vac+PE Current: 10.4 Amp Overcurrent protection: 16 Amp Power: 2.6 kW Frequency: 50/60 Hz The Labotek AVR3G is an industrial vacuum conveyor with a 1-liter capacity, designed for the automatic conveying of free-flowing plastic granules. It is particularly suitable for small to medium-sized production facilities where space and weight are critical factors. Technical data for Labotek AVR3G (1 liter): Capacity: 1 liter Conveying capacity: Up to 15 kg/h Conveyed material: Free-flowing, granular raw material (minimum grain size 3 mm) Operating noise level: Below 69 dB Material contact surfaces: Stainless steel AISI 304 Maximum material temperature: 80°C Alarm function: Low material level Power supply: Compatible with 50/60 Hz Weight: 88 kg Condition: used Scope of delivery: (See image) (Subject to change and errors in technical data. Details are provided without obligation!) If you have further questions, we are happy to assist you by phone. Kodpfx Aswwh Evsfijdu

Condition: good (used), Feed for round material, round material feeding system, round steel feeding system, motorized reel for round material for eccentric press, hydraulic press for straightening machine, wire straightening machine, unwinder straightening machine combination, pay-off reel, wire unwinder, double reel, reel, pay-off reel, motorized reel for wire processing, punch, eccentric press, hydraulic press, punching machine, motor reel, winding roll, unwinder, wire unwinder -Round material feeding system: Round steel feeding system with console Kdedpfsi Exp Ejx Afiou -Feed: Drive Lenze 2.2 kW type MDXMA2M 090-31 -Belt tensioning: pneumatic -Material tension: hydraulic -Tension pulleys: for Ø approx. 25 mm -Individual components: see photos -Hydraulic unit: can be supplied for an additional charge -Transport dimensions: 900/500/H780 mm -Weight: 332 kg

Condition: used, Forge grab, manipulator forge grab, sheet metal clamp, sheet metal claw, beam clamp, beam claw, sheet metal grab, material grab, material grab -Manufacturer: VEB, material gripper type B04-Z10-1 Kdodpfxelntnts Afiju -Load capacity: 1,000 kg -Span: see photos -Dimensions: 280/190/H320 mm -Weight: 21 kg