tender for purchase of equipments for mechanical department , purchase of equipments for mechanical department , tail stock assembly ● medium-duty tailstock assembly for dismantling & assembly ● quill stroke: minimum 75 mm ● taper: mt-3 (preferred standard) ● feed: hand wheel operated ● features: set-over screws for taper turning ● spindle locking arrangement ● body: cast iron (fg 260) ● spindle: hardened steel , working model of fuel supply system - petrol mpfi type ● petrol multi point fuel injection (mpfi) system for dismantling and assembly practice ● system type: non-working / cut-section model for study of internal construction ●construction: actual automotive components or equivalent training model mounted on frame ● includes throttle body (sectioned), fuel injectors, fuel rail, intake manifold ● includes fuel pump, fuel tank (dummy), fuel filter, pressure regulator ● includes ignition system components: ignition coil, spark plug, distributor (if applicable) ● ecu module (dummy/display type) with wiring layout representation ● all components cut-open, painted, and clearly labelled ● provision for manual demonstration of flow path and component interaction ● mounted on rigid ms powder-coated frame ● designed for repeated dismantling, assembly, and component identification , hydraulic cylinder bore diameter: 50 mm ● stroke length: 250 mm ● working pressure: 160 bar ● cylinder tube: honed steel ● piston rod: hard chrome plated ● seals: standard industrial seals ● end caps: steel supply: ● mounted on training base ● suitable for dismantling and inspection , hydraulic operated directional control valves (dcv) ● type: manual spool type dc valve ● configuration: 4/2 way ● size: ng06 (cetop 3) ● rated pressure: 210 bar ● flow capacity: 20-40 lpm ● body: hardened steel / cast steel ● spool: ground and hardened ● ports: clearly marked (p, a, b, t) supply: ● mounted on training plate ● suitable for dismantling and study , bearing with shaft assembly ● type: dismantling and assembly teaching unit ● shaft diameter: 30 mm ● shaft material: en8 steel ● bearings: deep groove ball bearing (6205 / 6206) ● housing: cast iron ● locking arrangement: ● circlips ● end covers mounting: ● bench-mounted / frame mounted unit , coupling unit using driving and driven shafts using plummer block bearing unit ● the plummer block housing material: cast iron (grade fg 200 or equivalent). type: sng or snl series (split-type housing). sealing: felt seals or v-ring seals (to demonstrate lubrication retention). lubrication: provided with a grease nipple at the top center for manual lubrication practice. ● the bearing type: self-aligning ball bearing (1200 series) or spherical roller bearing (22200 series). bore diameter: standard 25mm or 30 mm. ● shafting and coupling shaft material: ground carbon steel (en8 or en9) for high surface finish. ● coupling type: flexible coupling: to demonstrate the bearings ability to handle slight misalignment. ● rigid flange coupling: to demonstrate traditional direct connection. ● driving/driven setup: one shaft connected to a small electric motor (driving) and the other to a brake drum or load (driven). , 3d printing machine ● build volume(wxdxh) 256 x 256 x 256 mm³ ● shell enclosed (plastic & glass) hot end all-metal ● nozzle 0.4 mm stainless steel included ● max hot end temperature 300 ℃ ● nozzle diameter 0.4 mm (included) 0.2 mm, 0.6 mm, 0.8 mm ● build plate compatibility textured pei plate, cool plate, engineering plate, high temperature plate ● max build plate temperature 100℃ ● max speed of tool head 500 mm/s ● max acceleration of tool head 20 m/s² ● supported filament pla, petg, tpu, pva, pet, abs, asa ● chamber monitoring camera low ● rate camera 1280 x 720/0.5fps ● time lapse supported ● filament run out sensor :yes ● control board fan closed loop control ● auxiliary part cooling fan closed loop control ● air filter activated carbon filter