tender for supply of equipment for mechanical engineering department: (as per specification and nit) , supply of equipment for mechanical engineering department , lathe machine : specification : bed: 2v & 2 flat, induction hardened and ground minimum bed length: 1375 mm bed width: 240 mm capacity: height of centre: 165 mm swing over bed: 320 mm swing over gap: 510 mm swing over cross slide: 180 mm distance between centres: 650 mm slides: cross slide travel: 200 mm compound slide travel: 115 mm spindle: spindle bore: 40 mm spindle nose: thread type, ø62 mm spindle taper: mt-3 tail stock: quill diameter: 38.1 mm taper: mt-3 travel: 120 mm speed: no. of speeds: minimum 8 range: (40-800 )rpm threading: metric: (1-6 )mm (min 13 steps) english: (2-24 )tpi (min 19 steps) lead screw: (1 × 4) tpi electrical: motor: 1.5 hp, 230v/415v, 50 hz drive: v-belt structure: bed: close-grained cast iron (fg 260) gears: hardened steel base: rigid cast iron stand , open cup apparatus : specification : standard compliance: astm d92 / is 1448 (part 69) test method: open cup flash and fire point determination test cup: brass, precision machined with heat resistant handle heater: electric heater (1000 w ±10% nickel chromium) with variable control heating rate: 5-6°c per minute (as per standard) temperature range: -6 to 400°c thermometer: astm 11c or equivalent flame applicator: gas test flame with fine control valve body: stainless steel housing display: analog / digital temperature indicator power supply: 230v ac, 50 hz safety: overheat protection heat insulation , closed cup apparatus : specification : standard compliance: astm d93 / is 1448 (part 21) test cup:brass cup diameter: 50.7-50.8 mm capacity: minimum 70 ml stirring system heater: electric heater 650 w ±10% heating rate: 1-12°c/min adjustable ignition: pilot flame with automatic shutter mechanism temperature measurement: thermometer or digital sensor(ip-28c or astm) display: digital temperature display power supply: 230v ac, 50 hz safety:over-temperature cut-off flame safety control , tail stock assembly : specification : 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 , slip gauge : specification : set size: m87 (87 pieces) or equivalent range: 1.001 mm to 100 mm step sizes: 0.001 mm 0.005 mm 0.01 mm material: high-grade alloy steel / tungsten carbide (preferred) hardness: hrc 63-65 accuracy: grade: grade 1 or grade 2 flatne flatness / parallelism: ≤ 0.5 μm stored in protective wooden boxes to prevent wear; calibration grades include charts for exact sizes , dc motor: specification : type: dc shunt motor (dismantling model) power: minimum 0.5 hp voltage: 220 v dc speed: 1500 rpm poles: 4 pole construction: laminated stator salient poles accessible armature features: cut section / open type suitable for dismantling and reassembly , hydraulic cylinder : specification : 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 calibration grades include charts for exact sizes supply: mounted on training base suitable for dismantling and inspection , hydraulic operated directional control valves (dcv): specification : 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 : specification : 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 , coupling unit using driving and driven shafts using plummer block bearing unit : specification : 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). , (a).sliding mesh gear box for dismantling and assembling (b) constant mesh gear box cut section : specification : (a) max transmitted power 1to1.5hp, torque capacity- 40 to 200nm, number .of speed 3 to 6, gear module 1.5 to 2, sliding mesh gearbox gearbox type- sliding mesh forward gears- 3 reverse -yes gear material -alloy steel lubrication- splash / oil gear teeth- spur typical gear ratios- 3.2:1 / 2.0:1/1.3:1 input speed- 0-1800 rpm housing material- cast iron (b) constant mesh gearbox (cut section) gearbox type :constant mesh forward gears :4 gear teeth -helical / spur dog clutch type- sliding lubrication -oil sae 80w90 housing- cut section material -hardened alloy steel educational features- labeled parts.