Tender For Procurement of Lab Equipment for Third & Fourth Semester for Mechanical Engineering Department of Dasnagar Govt. Polytechnic, Dasnagar, Howrah-711105-- 1 Actual Cut Section Model of Differential Gear Box - (Actual cut section model of differential gear box mounted on Steel Frame showing details of all components (such as crown wheel, crown pinion, cage, sun gears, planet gears, split-rear axles, etc) for demonstration purpose. Crown pinion must be fitted with a handle.) 2 Actual Cut Section Model of 3:1 Speed type Synchromesh Gear Box-(Actual cut section model of 3:1 speed synchromesh gear bo x mounted on Steel Frame showing details of all components (such as clutch shaft, clutch shaft gear, main shaft, main shaft gears,synchronizing units, lay shaft, lay shaft gears reverse speed gear, idle gear, gear lever, selector rod, selector fork, slider, etc) for demonstration of various output speed. Clutch shaft must be fitted with a handle.) 3 Actual Cut Section Model of Steering System of a four wheeler Vehicle-(Actual cut section model of rack & pinion type steering system of a four wheeler light duty vehicle mounted on steel frame showing details of all components (such as steering wheel, steering column, rack, pinion, tie rod, tie rod arm, ball joint, boot, stub axle, etc) for demonstration of steering ratio. Wheels must be fitted to stub axles.) 4 Actual Cut Section Model of Air Brake System-(Board mounted actual cut section model of air brake system showing the complete layout and details of all components (such as air compressor, unloader valve, reservoir, air filter, brake valve, brake chamber, slack adjuster, etc) for demonstration purpose.) 5 Actual Cut Section Model of Rear Axle Assembly of a four wheeler Vehicle-(Actual cut section model of rear axle assembly of a four wheeler light duty vehicle mounted on Steel Frame showing details of all components (such as split rear axle, differential sub assy., wheel hub assy. at the end of two rear axle, etc) for the demonstration of power transmission from propeller shaft to wheel hubs. Crown pinion must be fitted with a handle.) 6 Actual Cut Section Model of Telescopic Type Hydraulic Shock Absorber-(Actual cut section model of telescopic type hydraulic shock absorber mounted on steel frame showing details of all components (such as cylinder, two way valves, tube, gland, head, eyes, coil spring etc) for demonstration purpose.) 7 Cut out Model of Four Cylinder Engine Lubricating System-(Cut out Model of Four Cylinder Engine Lubricating System showing the details of all internal parts ( such as crankshaft, connecting rod, piston, journals for main bearings, cam shaft, cams, push rods, timing gears, main oil gallery, strainer, gear pump, oil pressure gauge etc) and connectivity among them for demonstration purpose. Handle must be fitted at the end of crankshaft.) 8 Model of Battery Charging System with Dynamo-(Model of Battery Charging System with Dynamo showing details of all parts for demonstration purpose.) 9 Actual Cut Section Model of Torque Converter-(Actual cut section model of torque converter mounted on Steel Frame showing details of all components (such as input shaft, output shaft, impeller, turbine, stator, free wheel, etc) for demonstration purpose. Handle must be fitted at the end of input shaft.) 10 Working Model of Diesel Fuel Injection System-(Working model of Diesel fuel injection system layout of 4 stroke, 2 cylinder diesel engine (board mounted) showing details of all components (such as fuel tank, filter, fuel pump, supply line, fuel injectors, etc) for demonstration purpose.) 11 Single Cylinder Four Stroke Diesel Engine Cut Section Model along with Valve Timing Diagram Arrangement-(Single Cylinder Four Stroke Diesel Engine Cut Section Model along with Valve Timing Diagram Arrangement.Model showing the details of all internal parts and valve gear mechanism along with Valve Timing Diagram arrangement to show the position of valves for various strokes. Handle must be fitted at the end of crankshaft .) 12 Cut out Model of Four Cylinder Engine Cooling System-(Cut out Model of Four Cylinder Engine Cooling System showing the details of all parts (such as radiator, fan, pump, thermostat, engine cooling jacket, filler cap etc.) and connectivity among them for demonstration purpose.) 13 Cut Section Model of Multiplate Clutch-(Cut Section Model of Multiplate Clutch showing details of all internal parts along with clutch pedal for demonstration of the function of clutch. ) 14 Cut Section Model of single plate coil spring type clutch-(Cut Section Model of Multiplate Clutch, Cut section model of single plate coil spring type clutch showing details of all internal parts along with clutch pedal for demonstration of the function of clutch.) 15 Working Model of a Four Wheeler along with active Wiper,Back light & Chasis System-( Working Model of Ambassador Diesel / Petrol Engine. 16 Actual Cut Section Model of 3:1 Speed type Sliding Mesh Gear Box - (Actual cut section model of 3:1 speed type sliding mesh gear box mounted on Steel Frame showing details of all components (such as clutch shaft, main shaft, lay shaft, clutch shaft gear, main shaft gears, reverse speed gear, idle gear, gear lever, selector rod, selector fork, slider, etc) for demonstration of various output speed. Clutch shaft must be fitted with a handle.) 17 Surface Plate-( Granite Top surface plates with safety frame and with caster: Dimension:600 (W) x 600 (D) x 130 (H) mm; Flatness- 5 μm; Weight: not more than 140 kg.(Approx) excluding frame; Supporting safety frame height – 755 - 775 mm) 18 Precision Spirit Level - (High-precision longitudinal and transverse vials make it possible to check or level surface :Dimension: 200 x 44 x 200 mm. Accuracy of graduations: ± 0.3 Division) 19 Feeler Gauge - ((Metric Type) Metric thickness gauges with tapered leaves. Each leaf is to be marked with its thickness and make. Each leaf is detachable if necessary. Range: 0.05-1 mm of 20 leaves by 0.05 mm thick each; Type of Blade: Long Straight leaves.) 20 Screw Pitch Gauge - (Thread pitch is stamped on each gauge leaf. Metric screw pitch gauges 60° angle Range: 0.4 – 7 mm, Composition of leaves: 21 leaves: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7mm.) 21 Radius Gauge - (Radius size is stamped on each gauge leaf. Each leaf comprises an internal and an external radius gauge of the same size with locking clamp. Range: 1 - 7mm having 1 – 3 mm by 0.25 mm, 3 – 7 mm by 0.5 mm. Combination of leaves: 34 leaves with 180° arc.) 22 Dial Snap Gauge - (Designed for quick GO/NO GO judgment of diameters of cylinders and shafts; Width (13.5 x 12 mm), flat carbide anvils. Anvil retracting stroke: 2mm; Anvil positioning range: 25mm; Adjustment nut: adjusts the measuring range; Clamp: adjustment nut; ) 23 Ring Gauge - (GO Ring Gauge - 25-h9IS : 3485 NO GO Ring Gauge - 25-h9IS : 3485 GO Plain Ring Gauge M80 x 4 - 6g IS : 3485 NO GO Plain Ring Gauge M80 x 4 - 6g IS : 3485GO Ring Gauge - 25-H9IS : 3485 NO GO Ring Gauge - 25-H9IS : 3485) 24 Plug Gauge - (GO Ring Gauge - 25-H9IS : 3485 NO GO Ring Gauge - 25-H9IS : 3485) 25 Universal Bevel Protractor- ( Universal Bevel Protractor with magnifying lens: High-precision instrument for accurate angle measurement on machines, moulds, and jigs. It can be attached to height gauges by using gauge holder. Graduation: 5, Range: 0o-360o Least Count of Vernier : 5 min. Blade Length : 300 mm. and 150 mm. Attachments : With detachable Acute Angleattachment along the beam of 150mm.length, Height Gauge Attachment for using with Height Gauge. 26 Outside Vernier Micrometer - ( Baked-enamel-finished frame: ; Measuring faces: Carbide; Equipped with Ratchet Stop for constant measuring force; Range: 0 – 25 mm, Least Count: 0.001 mm, Accuracy: ± 2 µm;) 27 Inside Micrometer -(Inside Micrometer with Interchangeable Rod Type: Each interchangeable rod is marked with its measuring range. The full measuring range is achieved by combining spacing collars with the rods. Both micrometer head and rods are satin chrome finished throughout. The sleeve is rotated to adjust the index line position when setting to a length standard. An inside-length standard is required for accurately setting the micrometer. Range: 50 – 300 mm, Least Count: 0.01 mm, Head adjustment range - 13mm Quantity of extension rods: 5 Accuracy: ± 5 μm.) 28 Outside Micrometer - (Outside Micrometer with Baked-enamel-finished frame: Measuring faces: Carbide; Equipped with Ratchet Stop for constant measuring force; Range: 25 – 50 mm, Least Count: 0.01 mm,Accuracy: ± 2 μm. ) 29 Vernier Caliper (Metric / Inch Scale) - (Fine-adjustment aids slider positioning:Stepped graduation face prevents dust ingress between the main scale and slider. The small vernier face angle (14°) provides easy reading. Can measure outside and inside dimensions, depth, and steps.Carbide-tipped jaw calipers are optimal for rough finished parts, castings, grinding stones, etc. Decimal and fractional graduated scales (metric/inch)Range: 0 – 180 mm Least Count: 0.02 mm Accuracy: ± 0.03 mm. Depth bar: Blade.) 30 Vernier Height Gauge (Metric / Inch Scale) - (Fits comfortably in the hand and moves easily on the surface plate. The main scale slides and clamps within the column for quick and convenient zero-setting. Large locking knobs are to be provided both for the slider and fine adjustment clamps to make clamping easy and secure. Large main scale engraving for fatigue-free working. With carbide tipped scriber & scriber clamp. Range: 0 – 300 mm Least Count: 0.02 mm Accuracy: ±0.04 mm Height: 525 mm.) 31 Combination Square Set - (Measuring heads are attached to the graduated stainless steel rule (blade), allowing different measurements on various types of work pieces. Blade (inch/metric): (12” / 300 mm) with graduation (32 th , 64th/ 1,0.5 mm)having accuracy (length) - +.005” / - .0035” // +.13 mm/ -.09 mm) Square Head: For 300 mm (12), used to set the rule at 90 degree or 45 degrees to an edge of a work piece. Center Head: For 300 mm (12), Used to locate centres of round work pieces. Protractor Head: For 300mm (12), Used to set the rule at a desired angle to an edge of a work piece. Also used for measuring angles. ) 32 Dial Indicators (Metric Standard)with Magnetic Stand with Fine Adjustment - (Standard 0.01mm graduation dial indicators having a bezel with an outside diameter of 57mm, come with limit markers and a bezel clamp as standard. The bezel clamp and lifting lever can be attached to either the right or left side. These parts can be easily installed and removed without any tools. Both the stem and the spindle are made of high-strength quench-hardened stainless steel. A carbide contact point is fitted. The grand gear is made of stainless steel with high resistance to wear and deformation. Application of a hard coating on the surface of the crystal makes the gauge highly scratch and chemical resistant. Total Range: 0-10 mm, Range/rev.: 1 mm, with revolution counter; Least Count: 0.01mm, Accuracy per Rev - 10 μm; Magnetic Stands with fine adjustment and with magnet ON/OFF: Applicable holding stem dia: ø 6 mm or ø 8 mm clamp to iron or steel surface with a strong magnetic force; Approximate Magnetic force – 600 N; Base Size – 50 (W) x 58 (D) x 55 (H) mm Magnetic Stand with Fine Adjustment:with On/Off lever releases magnet & high magnetic power, Provision for universal adjustment in horizontal & vertical planes. Size of magnetic base: 60 mm x 47.5 mm. Applicable Holding Stem Dia.: ø6 mm, ø8 mm, Φ10 mm.) 33 Sine Bar - ( Sine Bar : (IS: 5359 - 1987): Range of setting angles 0 degree to 45 degree. attention must be paid to angular uncertainty. Lengths: 100 mm Roller Diameter: 20 mm respectively, The main body of sine bar, supporting rollersshall be made from suitable gauge steel as specified in IS : 7018 (Part 1)-I973. The working surface and rollers shall be hardened to a hardness of not less than 700 HV (60 HRC ) and stabilized. Material: Alloy steel.) 34 Slip Gauge (Metric Set) - (Slip Gauge Set (Metric) Accuracy- Grade 2 according to IS: 2984 (88 pieces): 1.005mm - 1; 1.01 to 1.49 mm- 49 pieces with step 0.01; 1.001 to 1.009mm - 9 pieces with step 0.001; 0.5 to 9.5 mm - 19 pieces with step 0.50, 10 - 100mm - 10 pieces with step 10.0 mm) 35 Gear Tooth Vernier Caliper - (Measures tooth thickness of gear, carbide tipped jaws.Range: M1-25 mm, Least Count: 0.02mm, Accuracy: ± 0.04 mm.) 36 Electrode - (8 mm. Diameter Electrode rod) 37 Non-working model of actual centrifugal pump - (Non-working model of actual centrifugal pump, having all components like impeller volute casing, stuffing box with gland sealing arrangement, so that tall parts can be mantled and dismantled easily for demonstration purpose. Whole set up mustmounted on a suitable rigid baseandpainted) 38 Nonworking model of actual Reciprocating pump - (Non working model of actual single acting reciprocating pump havingsuction line , delivery line , air vessel , cylinder, piston , piston rod , crank connecting rod , crank shaft,arrangement of manual rotation of crank shaft to showreciprocation of piston and arrangementshould besuch that partcan be easily mantled and dismantledfor demonstration purpose and entire set up must bemountedon a suitablebase .) 39 Model of a two-stroke IC engine (Study and demonstration of the construction and working of two-stroke IC engine and identify different components of it.) - (Model of a two-stroke IC engine to show different components of it (internal and external). Also working principal could be explained using the model.) 40 Cut section model of actual4-cylinder 4-stroke diesel engine (Study and demonstration of the construction and working of four-stroke IC engine and identify different components of it.) - (Showing all parts , cylinder ,piston , camshaft , crank shaft, valves ,fuel injector, movements of piston, valves , should be clearly visible) 41 Single Cylinder Four Stroke Diesel Engine Cut Section Model along with Valve Timing Diagram Arrangement - (Single Cylinder Four Stroke Diesel Engine Cut Section Model along with Valve Timing Diagram Arrangement Model showing the details of all internal parts and accessories along with Valve Timing Diagram arrangement for demonstration purpose) 42 Cut Section Model of Impulse Turbine - (Cut Section Model of Impulse Turbine, Model showing the details of all internal parts and accessories for demonstration purpose.) 43 Cut Section Model of Gas Turbine Plant (both open and close type)- (Cut Section Model of Gas Turbine Plant (both open and close type), Model showing the layout and details of all units / components for demonstration purpose.) 44 Cut Section Model of Gas Turbine - (Cut Section Model of Gas Turbine, Model showing the details of all internal parts and accessories for demonstration purpose.) 45 Working Model of a Hydro-Electric Power Plant - (Working Model of a Hydro-Electric Power PlantWorking model showing the layout of different plant & equipment of a hydro-electric power Plant. 2 hard copies of Operation Manual are to be supplied along with the working Model and Installation & Demonstration are to be given within one month of supply of set - up) 46 Cut Section model of Reaction Turbine (water) - (Cut Section model of Reaction Turbine. Model showing the details of all internal parts and accessories for demonstration purpose.) 47 Experimental set up of Separating & Throttling Steam Calorimeter with Boiler - (Separating & Throttling Steam Calorimeter with Boiler, This set up mounted on a Bench fully instrumented to determine quality of steam at Pressure of steam 8.0-10.0 kg/cm2 using separating throttling calorimeter with steam condensing plant, Non IBR small steam boiler shell fitted with immersion heater and furnish with safety valve, pressure gauge, digital thermometer, steel lagging jacket, Power supply for heating: 230 V, single phase AC. Arrangement for drainage of waste water after experiment. Operation &maintenance manual.Make: Any nationally or internationally reputed brand with ISO certified manufacturing company. Brochure /catalogue showing make, model /model no.and also online linkof brochure/catalogue should be mentioned) 48 Mollier Chart 49 Cut Section Model of Lancashire Boiler - (Cut Section Model of Lancashire Boiler, Model showing the details of all internal parts, boiler mountings and accessories for demonstration purpose.) 50 Model of La-Mont Boiler (water tube boiler) - (Cut Section Model of Water Tube La-Mont Boiler,Model showing the details of all internal parts, boiler mountings and accessories for demonstration purpose.) 51 Cut out Model of Reciprocating Compressor - (Cut out Model of Reciprocating Compressor Model showing the details of all internal parts for demonstration purpose.) 52 Cut section Model of Centrifugal Compressor - (Cut out Model of Centrifugal Compressor. Model showing the details of all internal parts for demonstration purpose.) 53 Chart Showing the Layout of Modern Thermal Power Plant - (Chart Showing the Layout of Modern Thermal Power Plant, Chart showing the details layout of modern Thermal power plant working on Reheat-Regenerative Cycle) 54 A vapour compression refrigeration system / Domestic Refrigerator - (An actual model of an old vapour compression refrigeration system / Domestic Refrigerator containing all components of it.) 55 Stefan-Boltzmann’s Apparatus - (Stefan-Boltzmann’s Apparatus, The apparatus consists of the following for caring out the experiment of Stefan-Boltzmann’s Constant:• Hemisphere made of copper, 200 mm dia, approx.• Hot water jacket.• Test Disc - 20 mm dia., 1.5 mm thick, copper.• Hot water tank with heater.2 hard copies of Operation manual are to be supplied along with the Apparatus and Installation & Demonstration are to be given) 56 THERMAL CONDUCTIVITY OF METAL ROD, For Laboratory, Copper - (Conductivity CopperUsage/Application LaboratoryMaterial Metal rod Bras/copper – 19 mm and 310 mm length.Display Type YesWeight 80 kgVoltage 230 vPower ElectricMounting Type Anti vibration moldPhase SingleTest rod is made of copper/brass, one end of which is heated by a band heater; middle portion of the rod is enclosed in a flanged sheet filled with insulating powder.Another end of the rod projects inside a water jacket, having circulation of water.) 57 Cut Section Model of Shell & Tube Heat exchanger - ( Cut Section Model of Shell & Coiled Heat exchanger, Cut section model showing details of all internal parts and accessories for Identification of components and demonstration purpose.) 58 Cut Section Model of Plate type Heat exchanger - (Cut Section Model of Plate type Heat exchangerCut section model showing details of all internal parts and accessories for Identification of components and demonstration purpose) 59 Actual model (old) of a room air-conditioner (window / split type) - (Actual model (old) of a room air-conditioner (window / split type) showing all components of it.) 60 Cut section model of hermetically sealed compressor - (Cut section model of hermetically sealed compressor to identify various components of it and demonstration of its working.)
