Used Masturn 50 Cnc for sale (39,544)

Condition: used, Year of construction: 2002, Tacchi HD-1450 CNC 725 x 4000 Heavy Duty Centre Lathe (2002) with Siemens Sinumerik 828D, 1000mm Diameter 4 Jaw Double Chuck, Chuck Bore Diameter 515mm, Barrufaldi Ban 400/4 4 Way indexing Tool Post (2) x 3 Point Steadies, Tailstock, Swarf Conveyor, Centre Height 725mm, Max Swing 1450mm Distance between Centres 4000mm, Main Motor 60kw, Max Workpiece Weight 15,000kg. Country of Origin: Italy Location: This lot is located in Aberdeen, UK. Unfortunately, there are no loading facilities on-site, dismantling and loading will be at the cost of the purchaser. All/Any tooling is being offered as specifically described. Pgodox T Ddajpfx Ag Tsn

Condition: excellent (used), Year of construction: 2008, Clamping force: 1000 kN (100 tons) Bending length: 2050 mm Stroke: 215 mm Psdpezclc Iefx Ag Tjgn Opening height: 500 mm Throat depth: 400 mm Distance between columns: 1700 mm Rear stop: X, R, Z axes Accuracy of the Y-axis: ±0.004 mm Motor power: 7.5 kW Weight: 7400 kg Year of manufacture: 2008

Condition: excellent (used), Year of construction: 2009, Press force: 100 tons Bending length: 2050 mm Stroke: 215 mm Open height: 500 mm Pgsdpfxszclczo Ag Tjn Throat depth: 400 mm Distance between columns: 1700 mm Rear bumper: X-R-Z Motor power: 7.5 kW Weight: 7400 kg Year of manufacture: 2009

Condition: excellent (used), Year of construction: 2010, Technical data: Working width: 6500 mm Maximum bending capacity: 10.0 mm Maximum bending angle: 7.0 mm CNC control Diameter of upper roller: 420 mm Diameter of side rollers: 315 mm Diameter of central lower roller: 400 mm Conical bending unit by angling the two side rollers Mobile control panel with digital display Hydraulic folding supports CE marking Motor power: 22 kW Dimensions (length x width x height): approx. 9200 x 2350 x 1900 mm Weight: approx. 39 tons Optional equipment: Side bending aid Swiveling bending aid on top Psdpfox Iitisx Ag Tjgn Condition: Very good condition, little used Operating hours: 100 hours The seller is not liable for typing or data transmission errors. The machine's appearance, technology, and wear correspond to its age; used machines are sold without any warranty.

Condition: used, Year of construction: 1984, spindle diameter 180 mm x-travel 1000 mm y-travel 1000 mm Control DIXI CNC 4400 total power requirement 47 kW Pgedpfxoy Nfdge Ag Tjn weight of the machine ca. 17 t dimensions of the machine ca. 4835 x 2700 x 3190 m

Condition: good (used), Year of construction: 2006, functionality: fully functional, machine/vehicle number: 06-00376, measuring range X-axis: 400 mm, measuring range Y-axis: 400 mm, measuring range Z-axis: 150 mm, Manufacturer: Werth Messtechnik GmbH Type / Model: Scope-Check 400 × 400 × 150 3D CNC Machine Type: Multi-sensor Coordinate Measuring Machine (optical / tactile) • Year of Manufacture: 2006 • Serial Number: 06-00376 Condition • Used, well-maintained overall condition • Machine was fully operational in measurement use until recently • Regular calibrations documented • No visible damage to granite, guides, or measurement system Accessories / Delivery Scope • Granite-based machine with measurement glass and protective cover • CNC control with Scope controller • Renishaw probe (multiple stylus inserts included) • PC workstation comprising: • Computer • Monitor(s) • Keyboard, mouse • Control panel / joystick • Documentation: • User manuals (WinWerth) • Calibration and inspection reports • Folder with machine and measurement room documentation • Software and calibration data carriers (CD/DVD) • Integrated control cabinet with main switch Application Area • Form and position tolerance inspection • Dimensional inspection of: • Sheet metal forming parts • Turned and milled components Pgsdpfxox Sw R Ds Ag Tsn • Tools • Prismatic and rotationally symmetric parts The unit is currently still installed and powered. An inspection while operational is possible by appointment. Dismantling, loading, and transport are to be carried out and borne by the buyer. • Measuring range (X/Y/Z): 400 × 400 × 150 mm • Control: CNC • Software: WinWerth, version 8.40 or higher (data carrier included) • Tool holder / probe: Renishaw, MK 2 • Probe system: Renishaw Probe Interface PI 200 • Measurement accuracy: • Length measurement deviation approximately 1.5 µm (according to Werth documentation / calibration records) • Voltage: 230 V AC • Frequency: 50 Hz • Power consumption: max. 10 A

Condition: excellent (used), Year of construction: 1992, functionality: fully functional, machine/vehicle number: 06651, travel distance X-axis: 6,800 mm, travel distance Y-axis: 3,700 mm, travel distance Z-axis: 1,500 mm, feed rate X-axis: 15 m/min, feed rate Y-axis: 15 m/min, feed rate Z-axis: 10 m/min, total length: 15,000 mm, total width: 7,500 mm, spindle speed (max.): 4,000 rpm, total height: 7,000 mm, table height: 1,100 mm, rapid traverse X-axis: 15 m/min, rapid traverse Y-axis: 15 m/min, rapid traverse Z-axis: 10 m/min, distance between stands: 3,300 mm, type of input current: three-phase, table load: 50,000 kg, rotational speed (max.): 4,000 rpm, distance table center to spindle nose: 2,110 mm, overall weight: 110,000 kg, spindle motor power: 50,000 W, control cabinet length: 7,000 mm, control cabinet height: 2,000 mm, control cabinet width: 600 mm, Equipment: rotational speed infinitely variable, MODEL: Portal Type Pgsdpfx Aoyahv Ssg Tjn AGE: 1992 S/N #: 06651 CATEGORY: Mills, Planer Type, CNC CAPACITY: X-Axis Travel: 6800 mm Y-Axis Head Travel: 3700 mm Z-Axis Ram Stroke: 1500 mm, fixed crossrail Ram Cross Section: 500 mm x 500 mm Distance Between Columns: 3300 mm Distance Table To Ram Face: 2110 mm, vertical passage 2000 mm Table Size: 6000 x 2500 mm Spindle (Quill) Diameter: 250 mm Spindle Taper: ISO #50 Spindle Speeds: 0-4000 RPM Spindle Motor: 50 KW EQUIPPED WITH: FIDIA System C20 CNC Control, new in 2002 CNC biaxial continous milling head Universal Milling Head with Auto Indexing Right Angle Head with Auto Indexing Straight Milling Head Wagons for Head Change and Tool Pick-up Change Hydrostatic Bearings Coolant System Full Length Chip Conveyors both side Way Covers Rapid movements: Z-10.000 mm/min, X and Y-15.000 mm/min Table load: max 50.000 kg Weight of the machine: 110.000 kg Outside dimensions: 15.000 x 7.500 x 7050 mm Machine has been tested before dismantling and is fully operational, all mechanical components in excellent condition, electrics new in 2018. Machine available from stock. The price is now SPECIAL FROM STOCK. Once we will reassemble the machine, price will grow significantly. We can assist you to assemble and run up the machine.

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, travel distance X-axis: 9,000 mm, travel distance Y-axis: 4,000 mm, travel distance Z-axis: 1,000 mm, The machine is in good technical condition, including a rotary table S 35, table dimensions 2850 x 3150 mm (photo in the attachment), 2 clamping plates, a HUI 50 swivel head, a tool magazine for 80 tools, and a Siemens 840 D control system. WRD 150 CNC Year of manufacture: 2008 Control system: SINUMERIK 840 D X-axis: 9000 mm Pedpfoy U Ndzjx Ag Togn Y-axis: 4000 mm Z-axis: 1000 mm W-axis: 800 mm Power: 60 kW Tool magazine capacity: 80 tools Clamping plates: 2, 6000x2000 mm Swivel head: HUI 50

Year of construction: 1991, condition: ready for operation (used), A horizontal Höfler CNC gear grinding machine is available. Machining diameter: 650mm, min. workpiece diameter: 30mm, max. gear width: 530mm, module range: 1.5-18, max. helix angle: 40°, table diameter: 490mm, max. table load: 1000kg. Machine dimensions X/Y/Z: approx. 4500mm/3000mm/3000mm, weight: approx. 22000kg. Including Rittal cooling unit and ISI extraction system. The machine has been out of operation since 2010. Documentation available. An on-site inspection is possible. Pgodpjy Hk Tzefx Ag Tsn

Condition: excellent (used), Mitutoyo Type: QS250Z Mitutoyo QS250Z CNC Vision Measuring Machine – Year of manufacture: 2017 – incl. software & accessories For sale is a high-quality Mitutoyo QS250Z CNC vision measuring machine from 2017, in excellently maintained condition. This is a precise optical coordinate measuring machine for non-contact measurement of workpieces. Ideal for quality assurance, incoming goods inspection, production, precision engineering, electronics, plastics technology, and much more. What can the device do? The QS250Z is a CNC-controlled optical measuring machine for: - 2D coordinate measurement - Contour and profile measurement - Distance, radius, angle, and diameter determination - Measurement of bores, grooves, edges, and complex geometries - Serial measurements with automated measurement programs - Documentation and report generation via Mitutoyo software Measurement is non-contact via a high-resolution camera system with image processing. Ideal for sensitive or small parts where tactile measurement is unsuitable. Thanks to CNC control, automated measurement procedures are possible – perfect for recurring testing processes. Technical data: Model: Mitutoyo QS250Z Machine type: CNC Vision Measuring Machine Year of manufacture: 2017 Code No.: 359-508-10Y Manufacturer: Mitutoyo Corporation, Japan Electrical data: 200–240 V AC 50/60 Hz Power consumption: approx. 500 W Fuse: 250V T 2.5A Dimensions (approx.): Width: approx. 700–800 mm Depth: approx. 900 mm Height: approx. 1,100 mm Weight (approx.): 150–200 kg Important notice: "The table shown in the photos is not included in the sale." Condition: used Scope of delivery: (see picture) - Mitutoyo QS250Z main unit - Joystick box Podpfoynkbasx Ag Tsgn - Software package: - QS-ConfigDisk - QSPAK - FORMTRACERPAK-AP - MiCAT Vision / Form - Manuals & documentation - Various electronic boards (see pictures) - Further accessories as shown (Technical data and information subject to change and error!) For further questions, please feel free to contact us by phone.

Condition: ready for operation (used), Year of construction: 2001, machine/vehicle number: Famar N 20 5, Can be inspected in Poland Pedpoxb Avbjfx Ag Tjgn

Condition: excellent (used), Year of construction: 2004, turning diameter 850 mm turning length 2200 mm control Siemens 840 D Podjyhrb Uepfx Ag Tjgn

Condition: as good as new (ex-display), Year of construction: 2026, Center height: 181 mm Center distance: 650 mm Maximum grindable workpiece diameter: 360 mm Max. load (overhung): 1000 N / 100 kg Max. load (between centers): 3000 N / 300 kg Z-axis Table swivel angle: 10° Table drive hydraulic: 0–4 m/min X-axis Cross slide travel: 80 mm Rapid traverse (hydraulic): 50 mm Coarse positioning—air cushion: 280 mm Infeed drive via DC motor Rapid feed rate: 48 mm/min/Ø Infeed process: Plunge / Longitudinal grinding 4 pre-selectable feed rates: mm/min/Ø 0.01–48 4 pre-selectable infeed increments: mm/ 0.001–0.1 Spark-out during end stop grinding: s 0–99 / 0–99 strokes Jog infeed: mm/Ø 0.001 Grinding spindle headstock—universal, swiveling: degrees 0–180 Grinding wheel (external): D x width x bore mm 500x100x127 or 203.2 Grinding wheel (face, option): D mm 250x32x76.2 Grinding wheel (internal, option): D mm (2–250) Drive power (external, face): kW 5.5 (7.5) Drive power (internal): kW 2.2 Peripheral speed (external): m/s 35 (50) Grinding wheel wear (external): mm/Ø 160 Wheel guard width: mm 100 Grinding spindle diameter: mm 60 Internal spindle mount: mm 80 (100) Workpiece headstock: Infinitely variable drive, MK 4: 1/min 30–270/ 50–450 Workpiece spindle lockable Pedpstqf Sqofx Ag Tegn Spindle mount: mm MK 4/24 Spindle nose for flange mounting: MK 4 mm cylindrical Ø63H6 x 6 Workpiece headstock swivels on the rotary part: degrees 0–90 Tailstock: Quill mount / quill diameter: mm MK 4/750 Quill stroke mm: 45 Quill force N: 100–800 / 250–1400, adjustable Quill actuation: manual (foot switch) Quill fine adjustment: ±40μm Connections: Total power requirement of the machine: kW 6.5–10 Grinding spindle headstock: kW 5.5 (7.5) Workpiece headstock: kW 0.55 (1.1) Coolant cleaning: kW 0.75–2.2 Guideway lubrication pump: kW 0.1 Hydraulic pump: kW 1.5 Hydraulic tank: liters 80 Pneumatics: bar 6 Similar to Weiss/ EMAG/ GP cylindrical grinding machines/ Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat/ Bahmüller/ Fortuna

Condition: new, capacity 90 degrees: round 510 mm capacity 90 degrees: square 480 mm 610 x 450 saw band length 5320 x 34 x 1,1 mm band speed 15 - 100 m/min table height 820 mm total power requirement 3,0 kW weight of the machine ca. 2,3 t dimensions of the machine ca. 2,65 x 2,8 x 2,2 m For miter cuts up to 45° left in fully automatic Operation and up to 60° left in semi-automatic operation Material height sensor (automatic cut start detection) Automatic feed unit via ball screw with incremental feed automatic length compensation Button on the saw band for automatic adjustment of the saw stroke Fully automatic control of the saw frame and clamping device Hydraulic unit with automatic pressure shut-off when idling Mechanical chip clearing brush feed vice opening on both sides Pgjdpjfu Nbbjfx Ag Tsn Remaining piece length 100 mm Modern CNC control freely programmable for multiple sawing jobs with various Cutting lengths and quantities. Automatic feed unit 500 mm via ball screw incremental feed with automatic length compensation. Adjustable for section lengths of 25 – 9,999mm. Fully hydraulic control of saw frames and clamping devices Preselection of 3 different material feed speeds Visualization of the entire workflow with simple data entry

Condition: used, Year of construction: 1995, Technical details: grinding length: 1250 mm grinding width: 600 mm workpiece height: 730 mm table surface area: 1720 x 500 mm headstock: dist. table - spindle center: 900 mm max. longitudinal movement: X-1450 feed range: 10 - 20.000 mm/min vertical movement: Y-730 mm feed range: 0,2 - 3.000 mm/min cross travel: Z-550 mm feed range: 5 - 5.000 mm/min Podox Uzvpspfx Ag Tsgn power capacity: 1500 U/min.- 44 kW / 8000 U/min. - 38 kW kW grinding wheel turining speeds: 50-6.000 U/min cutting speed: max. 80 m/sec. weight of the machine ca.: 11 t with CNC SIEMENS 840 C auto. dynamic balncing system integrated in the grinding conus profile grinding unit ( on table mounted ) Diamant profile rollers ( dia. max 140 mm , width max. 200 mm, hole 52 H3 ) speed 3000 rpm two magnetic plates ( 1000 x 400 mm, 1200 x 350 mm ) divers Flanges ect. *

Condition: used, Year of construction: 1990, x-travel 0500 mm y-travel 400 mm z-travel 400 mm table-size 680 x 380 mm CNC control 432 PHILIPS feed range 1-3000 mm/min rapid traverse 6 m/min Tool bore ISO 40 turning speed range 20 - 3150 U/min main drive DC 5 kW milling head -swivable +/- 90 ° total power requirement 12 kW Psdpfeu Rt Nrsx Ag Tegn weight of the machine ca. 1,2 to dimensions of the machine ca. 2,5 x 2 x 2 m CNC milling machine with 432 Control.

Condition: new, Year of construction: 2023, functionality: fully functional, type of input current: DC, table length: 600 mm, table width: 600 mm, It is a portable CNC cutting system from the brand manufacturer Thermacut: Input voltage: (VAC) 230V / 120 V, 50/60 HZ, 180 W, 0.5 A Max. cutting area: 3050×1525 mm Max. cutting speed: 3000 mm/min Vertical stroke: 100 mm Autogenous cutting area: up to 100 mm Plasma cutting area: up to 35 mm Pgodsv Ai T Hjpfx Ag Tjn Plasma interface: Yes Burner height control via arc voltage Total weight: 145 KG Scope of delivery: Autogenous torch, nesting software, Operating instructions Mini cutting table: small, portable and robust with water tank for cutting with water 600×600 mm cutting area Grid is replaceable with Drain valve low weight (only 108kg) built-in lockable wheels maximum material load 400 kg can be purchased with plasma device and burner on request!

Condition: used, saw blade diameter 350 mm capacity 90 degrees: round 120 mm capacity 90 degrees: square 110 mm capacity 90 degrees: flat 200x88 mm capacity 45 degrees: round 115 mm capacity 45 degrees: square 110 mm capacity 45 degrees: square 150x80 mm total power requirement 1,5/1,8 kW weight of the machine ca. 0,59 t dimensions 1,1 x 0,95 x 1,7 m New machines SPECIAL PRICE includes: - Starter Kit 2 - Micro-spraying system Ready for demonstration in our showroom!! Roller conveyors optional!! Hydropneumatic fully automatic · Miter Left/Right · Bevel head cuts up to 45° (shifter) a. b. · Pneumatic vertical clamping device · Vice before and after the saw blade for low-burr cuts · Material hold-down roller Pgedpod Iinyjfx Ag Ton · Integrated coolant spray device · Swarf suction nozzle on the saw blade protective hood · Single feed 530 mm · Section length min. 4 mm max. 9,999 mm For profile cuts, the use of our B & S Coolmatic Plus is mandatory necessary. CNC Control: · With button for over 90 different sawing programs with 99 sub-programs for length, quantity and angle · Automatic feed unit 2,000 mm via ball screw Incremental feed with automatic length compensation. Adjustable for cutting lengths from 25 - 9,999 mm. · Fully hydraulic control of saw frame and clamping devices · Pre-selection of 3 different material feed speeds · Visualization of the entire workflow with simple data entry

Condition: excellent (used), Control SIEMENS 840D Pedpfx Aeyrhl Rjg Togn

Condition: used, Control: Fagor Pjdpevzqm Eofx Ag Tjgn Faceplate: 5420 mm Turning diameter: 6540 mm Max. turning height: 3500 mm Support (ram) stroke vertical: 1680 mm Support (ram) stroke horizontal: 3250 mm Workpiece weight: 60 tons Machine weight: 190 tons approx. Hydrostatic faceplate

Condition: excellent (used), Year of construction: 1990, functionality: fully functional, travel distance X-axis: 1,600 mm, travel distance Y-axis: 920 mm, travel distance Z-axis: 950 mm, spindle diameter: 128 mm, controller model: HEIDENHAIN iTNC530, The machine was overhauled and modernized in 2005. Repairs were carried out in 2025. The following work was performed: - Cleaning of the machine - Overhaul and adjustment of machine geometry - Overhaul of machine functionality - Overhaul of electrical equipment - Overhaul of hydraulics and lubrication - Backlash compensation and drive optimization - Replacement of guideway wipers Pgodpfx Agoy Edl Ue Ten - Repair of the telescopic cover - Overhaul of the CHOV-K 10 bar tool cooling system - Overhaul of the AVN40 tool changer TECHNICAL DETAILS Main spindle diameter: 128.57 mm Tool holder: ISO 50 Spindle speed range: 5,000 rpm Travel X-axis: 1,600 mm Travel Y-axis: 920 mm Travel Z-axis: 950 mm Clamping surface of table: 850 x 850 mm (850 x 1,600 mm including additional supports) Table load capacity: 3,000 kg MACHINE DETAILS Control: HEIDENHAIN iTNC530 EQUIPMENT - Handwheel - SIEMENS motors and drives - CNC table - full B-axis control - CHOV-K 10 bar - through-spindle cooling – emulsion - ATC40 - automatic tool changer - Operator console protected against chips and coolant - Workpiece cover

Year of construction: 2000, condition: good (used), Technical specifications Psdpfxov Tz I Rs Ag Togn Capacity: 2100 x 650 mm

Condition: ready for operation (used), Year of construction: 1983, operating hours: 6,348 h, functionality: fully functional, drilling depth: 1,500 mm, travel distance X-axis: 1,250 mm, travel distance Y-axis: 900 mm, travel distance Z-axis: 900 mm, drill diameter: 50 mm, The machine was overhauled in 2009! TECHNICAL DETAILS Drilling depth: 1,500 mm Drill diameter: 5 - 50 mm Travel X-axis: 1,250 mm Travel Y-axis: 900 mm Travel Z-axis: 900 mm Table length: 1,000 mm Table width: 1,000 mm Max. table load: 3,000 kg Spindle speed: 100 - 6,000 rpm Spindle taper: SK 40 MACHINE DETAILS Control: Siemens 802 D Dimensions & Weight Dimensions (L x W x H): 5,000 x 2,600 x 2,000 mm Weight: 6,000 kg Operating hours: 6,348 h Pgjdpfx Aoyfhcisg Tsn

Year of construction: 2013, condition: ready for operation (used), A Knuth CNC vertical milling machine is available. Travel X/Y/Z: 385mm/230mm/385mm, table dimensions X/Y: 800mm/240mm, max. table load: 100kg, reach: 300mm, speed: 3000rpm, rapid traverse: 6m/min, feed rate: 2m/min. Machine dimensions X/Y/Z: approx. 1850mm/1650mm/2000mm, weight: approx. 1500kg, control: Knuth GPlus 450. Documentation available. An on-site inspection is possible. Pgodpfx Aoyw Svlog Tjn

Condition: as good as new (ex-display), Year of construction: 2025, The machine is on display and has only been used for demonstration purposes. Optimill F50 E CNC milling machine, direct from the manufacturer. F50 E – The OPTIMUM CNC milling machine with Siemens SINUMERIK 808D Advanced control stands out with its power, speed, precision, and long service life. • Machine in rigid cast frame design for high stiffness • Carousel tool changer with eight tool stations • All linear guides equipped with stainless steel covers • Automatic central lubrication • Siemens main spindle motor • Siemens servo drive on all axes (closed loop) • Maximum spindle speed of 10,000 rpm • The portable electronic handwheel with enabling button and emergency stop facilitates program setup significantly • Coolant system with 70-liter coolant tank • Tool change is automatic or by button press (electropneumatic tool clamping system) • Massive, precision-milled work table – large and precisely ground surface • Large access doors designed to minimize cleaning and maintenance time • LED machine light for complete workspace illumination • SIEMENS options package with material defect liability and free on-site OSS service SINUMERIK 808D • Control-identical software package for process reliability • LED tool number display • MCP with rotary switch for feed and spindle override • Absolute encoders – no homing run required • Higher accuracy Control system • 8.4” LCD color display with 800 x 600 resolution SIEMENS OSS options package • 12 months; Item No. 3589010 • 36 months; Item No. 3589012 Dimensions and weights Length approx. 2030 mm Width/depth approx. 1600 mm Height approx. 1980 mm Weight approx. 1900 kg Electrical data Connection voltage 400 V Mains frequency 50 Hz Electrical connection Total connected load 10 kVA Work table horizontal Length 690 mm Width 225 mm Vertical spindle-table distance min. 90 mm Vertical spindle-table distance max. 410 mm T-slot size 14 mm Number of T-slots 3 T-slot spacing 63 mm Max. load capacity 150 kg Accuracy Repeat accuracy ± 0.015 mm Positioning accuracy ± 0.015 mm Pneumatic connection Operating pressure 6 bar Travel X-axis automatic 330 mm Y-axis automatic 220 mm Z-axis automatic 320 mm Spindle-column distance min. 280 mm Spindle-column distance max. 280 mm Vertical spindle Spindle taper BT 30 Speed range 10,000 rpm Drive motor power continuous operation S1 3.7 kW Drive motor power S6-30% duty 5.5 kW Drive motor torque continuous operation S1 24 Nm Drive motor torque 30% duty S6 36 Nm Feed rates X-axis 15,000 mm/min Y-axis 15,000 mm/min Z-axis 15,000 mm/min Feed motor torque X-axis continuous operation S1 3.5 Nm Y-axis continuous operation S1 6 Nm Pgodjymkdxjpfx Ag Tjn Z-axis continuous operation S1 6 Nm Tool changer Type: carousel Number of tool stations: 8 Maximum tool diameter: 100 mm Maximum tool length: 200 mm Maximum tool weight: 6 kg Tool-to-tool change time: 7 s