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 cylinderbore 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: steelsupply: 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 mm 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/s 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