Used Emco Maxxturn 95M for sale (302)

Condition: good (used), Year of construction: 2006, EMCO EMCOMAT 14 D Lathe EMCO EMCOMAT 14 D with Emco digital readout, year of manufacture 2006, in excellent original condition. The machine comes from the special production department of a renowned German mechanical engineering company. CE-compliant! Technical data: Year of manufacture: 2006 EMCO EMCOMAT 14 D Technical Data Dkedexyvbnepfx Aqvjn Working Area Travel distance in X/Y/Z: 135 / - / 590 mm Centre distance: 650 mm Centre height: 140 mm Main spindle Max. speed: 4,000 rpm Spindle mount: Size 4 (DIN 55029) Max. drive power: 7.5 kW Tailstock Quill diameter: 30 mm Internal taper: MK 2 Quill stroke: 80 mm Dimensions (LxWxH): 1,280 x 730 x 1,480 mm Machine weight: 420 kg About the machine: The EMCOMAT 14D is the smallest machine in the EMCOMAT series. The EMCOMAT 14D is a lathe designed for the highest demands: with stepless speed control, constant cutting speed, and a robust 7.5 kW drive power (40% duty cycle). The compact machine with outstanding performance is ideal wherever maximum precision in limited space is required, such as optical, electrical, and automotive workshops, laboratories, and even Formula 1. Offered here is a lathe EMCO EMCOMAT 14 D with Emco digital readout, manufactured in 2006. This lathe is in excellent original condition. It was only used occasionally in special production. The control system is very user-friendly. The guides are regularly lubricated by a central lubrication system. The EMCO EMCOMAT 14 D has been mechanically and electrically tested by us. You are welcome to inspect and test the EMCO EMCOMAT 14 D under power at our premises. You will find further lathes from renowned manufacturers on our website.

Condition: good (used), Year of construction: 2017, MAXXMill 350 [ Technical Data ] Travel and Tolerances Travel X-axis: 350 mm Travel Y-axis: 250 mm Travel Z-axis: 300 mm Distance spindle nose – table surface (min. - max.): 70 / 370 mm Swivel range B-axis: +/-100° Rotary range C-axis (rotary table): 0 – 360° Feed Rapid traverse X-Y-Z axis: 30 m/min Max. rotational speed B-axis: 20 rpm Max. rotational speed C-axis: 25 rpm Max. motor feed force X-axis: 3000 N Max. motor feed force Y-axis: 3000 N Max. motor feed force Z-axis: 3000 N Max. acceleration X-Y-Z-axis: 4 / 3 / 3 m/s² Swiveling Rotary Table Table diameter: 400 mm Table height from floor: 860 mm Number of T-slots: 5 Slot spacing: 75 mm Slot width: 14 mm Max. permissible workpiece weight (evenly distributed): 50 kg Main Spindle (mechanical spindle) Spindle speed: 50 – 12,000 rpm Max. torque: 33 Nm (S6) Djdpfxjx H T Eys Aqvjkn Max. power: 7 kW (S6) Tool taper: ISO 30 DIN 69871 Pull stud: DIN 69872A Direct drive with coupling Tool Magazine Number of tool stations: 20 (30, 50) ISO 30; 30 (50) HSK-A40 Tool change concept: changing arm Tool management: random Tool change time (tool-to-tool): 2 sec Max. tool diameter: 63 mm Max. tool diameter (without adjacent tool): 100 mm Max. tool length: 200 mm Max. tool weight: 5 kg Max. drum load weight: 60 / 70 / 100 kg Coolant System Coolant tank capacity: 120 l Standard coolant pressure: 2 bar Max. delivery rate at 2 bar: 40 l/min Pneumatics Min. supply pressure: 6 bar Min. supply volume: 200 Nl/min Lubrication System Spindle: grease Roller guide: oil / central lubrication Ballscrew: oil / central lubrication Dimensions Overall height: 2300 mm Installation area (W x D): 1630 x 2300 mm Weight: 3800 kg

Condition: good (used), Year of construction: 2002, functionality: fully functional, machine/vehicle number: R6CQ2401, turning diameter over cross slide: 360 mm, spindle bore: 65 mm, spindle speed (max.): 4,000 rpm, travel distance X-axis: 210 mm, travel distance Z-axis: 610 mm, No reserve price - guaranteed sale at the highest bid! TECHNICAL DETAILS Control: Siemens Sinumerik 840 D X-axis travel: 210 mm Dksdpowu Ecgsfx Aqvjn Z-axis travel: 610 mm Z-axis in rotary axis – resolution: 0.001° Spindle Spindle size: 65 mm diameter Outer spindle diameter of front bearing: 100 mm Swing diameter over bed: 600 mm Swing diameter over cross slide: 360 mm Distances and workpiece sizes Distance between main spindle and tailstock: 805 mm Distance between main spindle and counter spindle: 716 mm Max. workpiece size with tailstock: 200 × 520 mm diameter Counter spindle / tailstock Internal taper of counter spindle/tailstock: MK4 Tailstock travel: 500 mm Max. clamping force: 8,000 Nm Feed and Rapid traverse Feed force X/Z-axis: 5,000–7,000 Nm Rapid traverse X-axis: 24 m/min Rapid traverse Z-axis: 24 m/min Rapid traverse: 100 rpm Tool carrier Tool turret: 12-station Tool holder: VDI 30 Driven stations: 12 Speed range of driven tools: 0–4,000 rpm MACHINE DETAILS Dimensions: 4.0 x 2.5 x 2.5 m Weight: 6 t Operating voltage: 400 V Frequency: 50–60 Hz Rated current: 29 A EQUIPMENT - SCHUNK three-jaw chuck with 220 mm diameter - Tailstock included - Machine can be transported on a standard truck

Condition: good (used), Year of construction: 2002, functionality: fully functional, machine/vehicle number: R7 A-Q-2701, Used CNC lathe Manufacturer: EMCO Model: Hyperturn 665 Year of manufacture: 2002 Control: 840 D Dodpfxex Tbcyj Aqvokn With chip conveyor

Condition: excellent (used), Year of construction: 2017, Heidenhain TNC 620 control Travel X/Y/Z: 350 x 250 x 300 mm Spindle speed: 12,000 rpm Rotary and swivel table Tool magazine for 50 tools, ISO 30 Dkedpjx Rpahsfx Aqvjn Chip conveyor LANG Automation

Condition: new, Machine according to DIN 8605: lathe with increased accuracy. Tip width: 700 mm Peak height: 170 mm Circulating diameter over bed: 340 mm Circulating diameter over flat slide: 190 mm Bed width: 260 mm Laengs schlitten: 600 mm Shifting path cross slide: 220 mm Shifting path upper slide: 110 mm Flat slide: 410 mm Flat slide width: 150 mm Guide load-length bed slide: 380 mm Rotary chisel cross-section: 20x20 mm Center of rotation distance - Upper slide: 34 mm Swing range upper slide (Support): 60/120° Main spindle: Spindle connection DIN 55029 (Camlock): S 5 Spindle bore: 50 mm Inner cone according to DIN 7178: 1:22 Spindle diameter in the front bearing: dia. 70 mm Max chuck diameter: 200 mm Max. washer diameter: 200 mm Spindle speeds: 40-3000 rpm Speed control: Stepless mechanical speed levels: 4 Main drive: Power at 40% ED: 5.3 kW Max rated torque a. d.Main spindle: 640 Nm Feed: 20 (28) Laengsvorschuebe Z: 0.045-0.787 mm/U 20 (28) Plan vorschuebe X: 0.023-0.406 mm/U Thread: 20 (28) metric thread (basic): 0.4 - 7.0 mm 32 inch thread (with option Raed replacement D3Z200): 56 - 4 Gg/inch Dkedpfx Aqjdctnbeven 28 Module thread (with option Raed replacement D3Z200): 0.2 - 3.5 32 diam. Pitch thread (with option Raed replacement D3Z200): 112 - 8 Tailstock: Pinole diameter: 50 mm Indoor cone of the pinole: MK 3 Pinole stroke: 120 mm Side adjustment: x 13 mm Zulessige Werkstueckweights

Year of construction: 1998, condition: ready for operation (used), Swing diameter over bed/cross slide: 430mm/210mm, distance between centers: 510mm, travel X/Z: 160mm/310mm, spindle speed: 6300rpm, rapid traverse: 20m/min, tool positions: 12, tool holder: VDI30. Machine dimensions X/Y/Z: approx. 2250mm/2000mm/2000mm, weight: approx. 2600kg, control: Fanuc Series 21-T, operating hours: approx. 40000h. The hour counter was reset after each repair. The machine has electronic issues that cause sporadic system failures. An on-site inspection is possible. Djdpfx Aqexmkcaevjkn

Year of construction: 2003, condition: ready for operation (used), Travel X/Z: 210mm/610mm, Travel Y: +/-40mm, Swing over cross slide: 360mm, Spindle bore: 65mm, Tool stations: 12, Tool holder: VDI30, Speed: 4000rpm, Rapid traverse: 24m/min, Feed force: 5000Nm. Machine dimensions X/Y/Z: approx. 4000mm/2500mm/2500mm, Weight: approx. 6000kg, Control: Siemens Sinumerik 810D, Operating hours: 4894h. Including oil cooler, parts catcher, power chuck Kitagawa BB08, collet device, turning tool holders and boring bar holders. Documentation available. An on-site inspection is possible. Dkodpfxexuvn Dj Aqvon

Condition: like new (used), Year of construction: 2022, operating hours: 650 h, functionality: fully functional, machine/vehicle number: S6E222101, turning length: 520 mm, turning diameter over cross slide: 360 mm, turning diameter: 500 mm, The machine is in like-new condition with only 650 operating hours. It is in excellent optical and technical condition. Dodpfx Asyn Aahsqvokn

Condition: used, Year of construction: 2011, EMCO Hyperturn 45 – CNC Turning Machine - Siemens SINUMERIK CNC control system - Main spindle equipped with a full clamping cylinder (operation with bar feeder not possible; loading and unloading via automatic swing loader, see video) - Year of manufacture: 2011 Technical Data Working Area: - Maximum swing diameter over bed: 430 mm - Swing diameter over cross slide: 300 mm - Maximum turning diameter: 300 mm - Maximum part length: 480 mm - Maximum bar capacity: 45 mm - Distance between main and counter spindle (spindle noses): 720 mm Slide Travel Range: - Slide travel X / X2: 160 / 150 mm - Slide travel Z / Z2 / Z3: 510 / 510 / 510 mm Main Spindle (Spindle 1): - Spindle mount – DIN 55026: KK 5 - Spindle bore: 53 mm - Spindle bearing (internal diameter): 85 mm - Maximum mass moment of inertia for clamping device and workpiece: 0.08 kgm² Main Spindle Clamping System: - Hollow clamping cylinder (hydraulic) with draw tube, max. bar passage: 45 mm - Max. standard chuck size: 160 mm Main Spindle Drive: - AC hollow shaft spindle motor, power (100%/40% duty cycle): 11 / 15 kW - Speed range (infinitely variable): 0 – 7,000 rpm - Max. spindle torque: 100 Nm Counter Spindle (Spindle 2): - Spindle mount – DIN 55026: KK 5 - Spindle bore: 53 mm - Spindle bearing (internal diameter): 85 mm Dkedsyglx Rspfx Aqvon - Z3 travel: 510 mm - Traverse speed: 45 m/min - Maximum mass moment of inertia for clamping device and workpiece: 0.08 kgm² - Counter spindle clamping system: hollow clamping cylinder with draw tube and integrated pneumatic parts ejector - Max. chuck size: 160 mm Counter Spindle Drive: - AC hollow shaft spindle motor, power (100%/40% duty cycle): 11 / 15 kW - Speed range (infinitely variable): 0 – 7,000 rpm - Max. spindle torque: 100 Nm C Axes (Spindles 1 and 2): - Circular axis resolution: 0.001° - Rapid traverse speed: 1000 / 100 rpm - Spindle indexing (disc brake): 0.01° Feed Drives: - Rapid traverse X / Z: 30 / 45 m/min - Feed force X: 4,000 N - Feed force Z / Z2 / Z3: 5,000 / 5,000 / 6,000 N - Position scatter width Ps per VDI 3441 in X / Y / Z: 3 / 3 / 3 µm Turrets 1 and 2 (upper and lower system): - Radial tool turret with directional logic and driven tools - Number of tool stations per turret: 12 - Tool holders according to DIN 69880: VDI 25 - Tool cross-section (square tools): 16 × 16 mm - Boring bar shank diameter: 25 mm - Turret indexing time: 0.2 s Driven Tool Stations (coupling according to DIN 5480): - Number of driven tool stations per turret: 12 - Speed range: 0 – 6,000 rpm - Maximum drive power: 4 kW - Maximum torque: 16 Nm - Maximum duty cycle at maximum speed or power: 25% Lubrication System: - Guideways, ball screws: automatic central oil lubrication - Main spindle, counter spindle: grease lubrication Chip Conveyor: - Hinged belt conveyor, discharge height: 1,200 mm Electrical Connection: - Power supply: 400 V ~3/PE - Machine connected load: 30 kVA - Max. main fuse for the machine: 80 A - Required short-circuit power: 2,500 kVA Dimensions / Weights: - Height of spindle axis above floor: 1,126 mm - Overall height (incl. oil mist separator): 2,325 mm - Footprint (incl. chip conveyor, without cooling unit): 3,830 × 1,950 mm - Net weight of the machine without chip conveyor: 4,200 kg Sound Pressure Level: - Average sound pressure level: 78 dB(A)

Condition: excellent (used), functionality: fully functional, EMCO Maximat Super 11 – Precision Lathe in Very Good Condition For sale is a used EMCO Maximat Super 11, a robust and precise universal lathe "Made in Austria." This machine is ideally suited for workshops, training centers, or demanding hobbyists who value quality and accuracy. The machine is pre-owned but well-maintained and fully operational. All gear shifts are smooth, the guides are in good condition, and the machine has been regularly serviced. Technical Specifications: Center height: 140 mm Distance between centers: 600 mm Spindle speed range: 55 – 2200 rpm (8 geared steps) Tailstock: MT2 taper Tool holder: Quick-change toolpost Lighting: Integrated LED work light Weight: approx. 360 kg Dimensions (L × H × W): approx. 1.3 m × 1.2 m × 0.6 m Condition & Accessories: Machine runs quietly with low vibration Tailstock is smooth and easy to adjust with high precision Quick-change toolpost included LED work light for optimal visibility Various clamping devices or tools can be purchased additionally upon request (by arrangement) Price: The price is within a reasonable range and negotiable. Dkedpfx Aqsxqx Nvsvon Open for price discussions upon serious interest. Miscellaneous: Collection preferred, viewing by appointment possible Machine can be shown under power

Condition: excellent (used), EMCO TURN 365 – CNC Turning Center For sale: EMCO TURN 365 CNC turning center, in excellent technical condition, immediately available and ready for operation. Year of manufacture: 2000 EMCO Turn 368/65 Operating hours: 53,000 Year: 2000 Chip conveyor Drip tray Maximum swing diameter over bed [mm]: ø600 Swing diameter over cross slide [mm]: ø360 Maximum turning diameter [mm]: ø310 Maximum workpiece length [mm]: 520 Maximum bar capacity [mm]: ø65 Distance between centers (spindle nose – tailstock center) [mm]: 669 X-axis travel [mm]: 210 Z-axis travel [mm]: 610 AC motor power (Sinumerik / Fanuc) with integrated holding brake [kW]: 24.4 / 22 Spindle speed range (stepless) [rpm]: 60 – 3200 Max. torque (Sinumerik / Fanuc) [Nm]: 267 / 242 C-axis (rotary axis) on main spindle Rotary axis resolution [°]: 0.001 Rapid traverse speed Siemens / Fanuc [mm/min]: 1000 / 100 Automatic tailstock, hydraulically actuated Tailstock travel [mm]: 500 Max. tailstock force [N]: 8,000 Travel speed [m/min]: approx. 20 Tailstock quill taper: MT 4 Disc turret with directional logic, optionally with driven tools Number of tool stations: 12 Tool holders according to DIN 69880 VDI 30 Tool cross-section for square tools [mm]: 20 × 20 Boring bar diameter [mm]: ø32 Number of driven tool stations: 12 Speed range [rpm]: 0 – 5,000 Max. drive power [kW]: 5 Max. torque [Nm]: 20 • Control: Sinumerik 810D/840D (ShopTurn 6.4) • Machine weight: approx. 4,000 kg • Installation dimensions (L × W × H): approx. 4,000 × 2,000 × 2,000 mm — Condition & Scope of Delivery The machine is in very well-maintained condition. The offer includes comprehensive documentation including operator’s manual. • Inspection possible at any time • Free loading • Delivery by arrangement possible — Contact Maschinenhandel Nord Gerstenstraße 2 Djdpfx Asxiy Ukjqvjkn 17034 Neubrandenburg 📞 All prices subject to VAT. Errors and alterations excepted.

Year of construction: 1992, condition: new, New driver ISO40 for milling machines FN 20/32/40 Dsdpfx Aek Nk I Nsqvokn

Year of construction: 1998, condition: new, New trapezoidal spindle+nut X-axis, for FN20, FN32, FN40 Djdpsk Nk Iwjfx Aqvekn

Condition: used, weight approx.: 450messurements (LxWxH): 1250x1350x1550y-travel: 300z-travel: 200x-travel: 350speed range: 80-2200table diamension: 600x200 Description:  Dsdpfx Aergvbpoqvjkn -)coolant equipment -)machine lamp Revs80 – 2200 (8) r.p.m.TaperDIN2078 ISO30 (Anzugsschraube M12)Working area300 x 200 x 350 mmTable600 x 200 mmFeeds stepless X,Y range20 – 200 mm/id traverse X,Y range1200 mm/ll travel45 mmMax. feed force1600 NmSpindle motor1,1/1,4 kWvertical table600 x 200 mmDistance vertical milling spindle - milling table20 – 370 mmDistance horizontal milling spindle - milling table84 – 434 mmFeed in X-axis (stepless)20 – 200 mm/minLength1250 mmWidth1350 mmHeight1550 mmWeight450 kg

Condition: ready for operation (used), Year of construction: 2021, Control Unit Djdpfox D Dzdjx Aqvekn Brand HEIDENHAIN Model TNC 620 Table Table load 1500 kg Main Drive Number of axis 4 Spindle Speed 15000 RPM Tool taper SK 40 Movement X-Axis Movement 1200 mm Z-Axis Movement 500 mm Y-Axis Movement 610 mm Tools Slots in storage 32 This 4-axis EMCO Emcomill EM 1200 was manufactured in 2021. It features a TNC 620 HEIDENHAIN control, a 15,000 rpm spindle, and a SK40 tool carrier. The machine offers X-1200, Y-610, Z-500 strokes and supports a maximum workpiece weight of 1500Kg. With 32 tools and 3300 operating hours, consider the opportunity to buy this EMCO Emcomill EM 1200 vertical machining centre. Contact us for more information. Application Types Milling

Condition: ready for operation (used), Year of construction: 2007, operating hours: 11,261 h, functionality: fully functional, machine/vehicle number: M-077.084.07, empty load weight: 4,800 kg, Equipment: chip conveyor, MACHINE DETAILS Weight: 4,800 kg Operating Hours Spindle hours: 11,261 h Djdpexpvwzjfx Aqvekn Control system on hours: 125,668 h EQUIPMENT Conveyor belt (FAMUP 405-1498-1, 352 kg)

Condition: good (used), Year of construction: 1998, operating hours: 28,500 h, functionality: fully functional, travel distance X-axis: 420 mm, travel distance Y-axis: 330 mm, travel distance Z-axis: 240 mm, spindle speed (max.): 5,000 rpm, VMC 300 Siemens 810D control SK40 12 tool positions Dodpewlpb Usfx Aqvokn In good condition Fully functional

Condition: used, Year of construction: 1999, operating hours: 65,090 h, functionality: fully functional, ET365 GS with bar feeder and chip conveyor The machine is fully equipped - Collection tray - High-pressure pump - Control cabinet air-conditioning unit - Kupa loader Dodpfjycvaqjx Aqvskn - The machine was purchased from a running production operation and has been technically inspected - Geometry measured and all settings adjusted - Wearing parts replaced - All functions checked and adjusted as required The machine is fully operational and ready for immediate production The machine is available immediately

Condition: new, functionality: fully functional, Year of construction: 2024, The temperature control unit from the company is available and has not been put into operation. Medium: Water Heating capacity: 27 kW Cooling capacity: 175 kW VA: Mould drain (vacuum) FM: Flow monitoring MKVI: Touch screen Dkjdpfew Rb Hfox Aqven

Condition: good (used), The scope of delivery includes: 01x Pressed grate, used Dsdsnbfhaopfx Aqvskn Material color: hot-dip galvanized Total depth: 990 mm (bearing bar direction) Total width: 1.195 mm (cross bar direction) bearing bar dim.: 40/2.0 mm frame height: 40 mm Mesh size: 100 x 100 mm Weight: approx. 11.07 kg | pcs. Internal designation: L Remark: - The frame has been flanged inward from all sides. - The gratings may have damage, scratches, dents, welds, etc. General information about the item: This item is offered for pickup only. A beyond desired transport or a shipment of this article is associated with additional additional costs, which are separately depending on the place of delivery or scope of delivery can be requested from us.

Condition: good (used), Technical data of the pallet rack traverse: Racking system: Dexion Type: Speedlock Super 4 Included in delivery are: Djdoikm Tyjpfx Aqvokn 01x pallet rack traverse, used Material color: sendzimir galvanized Type of truss: SLO 89|2 box profile: 89 x 50 mm agraffe: 4 HK (hooks) clear width: 3.095 mm

Condition: new, travel distance X-axis: 2,000 mm, travel distance Y-axis: 2,050 mm, travel distance Z-axis: 1,500 mm, table load: 8,000 kg, spindle diameter: 110 mm, spindle speed (max.): 3,000 rpm, table length: 1,600 mm, table width: 1,440 mm, feed rate X-axis: 10,000 m/min, feed rate Y-axis: 12,000 m/min, feed rate Z-axis: 12,000 m/min, travel distance W-axis: 500 mm, workpiece weight (max.): 8,000 kg, quill travel distance: 500 mm, quill diameter: 110 mm, overall weight: 25,000 kg, Equipment: rotational speed infinitely variable, FEMCO BMC 110 T2 Boring Mill (T-Type Design) – Available for Quick Delivery The FEMCO BMC 110 T2 is a classic boring mill designed for heavy-duty and high-precision machining. Your advantages at a glance: ✔ Installation & commissioning in Germany included ✔ Service & spare parts directly through JMT ✔ Leasing / financing available ✔ No special foundation required (standard industrial floor is sufficient) ✔ 24-month warranty Technical Specifications: Control System: HEIDENHAIN TNC 7 control system HEIDENHAIN 19" TFT display HEIDENHAIN motors, measuring systems, and HR-510 electronic handwheel Cooling: Dsdpfxoxc Hphj Aqvokn Internal coolant supply (IKZ) 20 bar Tool Changer: 60-position chain magazine with double gripper Chip Disposal: Dual hinged belt conveyor (front and rear) Enclosure: Fully enclosed perimeter guarding Spindle Support Bearing: Spindle support bearing ø 250 mm Accuracies: Positioning accuracy: ± 0.020 mm Repeatability: ± 0.010 mm Your benefits with JMT: ✔ Official FEMCO distributor in Germany ✔ On-site technical support and service ✔ Fast spare parts supply ✔ Training and instruction included ✔ Reference machines available in Germany Contact us – we are pleased to advise you and provide a tailored quotation

Condition: excellent (used), Year of construction: 2005, FOR SALE - Emcomat 17D Lathe Year 2005 Travel in X/Z 220 / 710 mm Distance between centers - 700 mm Distance above centers - 170 mm Djdpfx Aqsxyzikovjkn Max. speed - 3000 rpm Spindle nose - DIN 55029 Max. drive power - 5.3 kW Quill diameter 50 mm Inner cone MT3 Quill travel 120 mm Dimensions (LxWxH) 1650 x 1060 x 1635 mm Machine weight 755 kg 3 & 4 Jaw Chuck

Condition: excellent (used), Year of construction: 2009, Control: Emco Easycycle Working Area Travel in X: 450 mm Travel in Y: 400 mm Travel in Z: 350 mm Table Clamping area (L x W): 800 x 400 mm Dsdpfoyvrkajx Aqvekn Max. table load: 300 kg Spindle Speed range (stepless): 10 – 5,000 rpm Distance to table surface: 40 – 440 mm Tool holder: SK 40 Quill stroke: 80 mm Swiveling vertical milling head: +/- 90° Feed Feed range: 10 – 5,000 mm/min Rapid traverse X/Y/Z-axis: 2,000 / 5,000 mm/min Feed force X/Y/Z: 10 / 10 / 15 kN Dimensions Dimensions (L x W x H): 1,980 x 2,030 x 1,990 mm Machine weight: 2,270 kg