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Tender For supplying, installation, testing and commissioning of machines and equipment for civil engineering department at ttaadc polytechnic institute, khumulwng, west tripura for the project improvement of infrastructure in ttaadc polytechnic institute, kh - supplying, installation, testing and commissioning of machines & equipment in civil engineering department at ttaadc polytechnic institute, khumulwng, west tripura under the nec scheme "improvement of infrastructure in ttaadc polytechnic institute, khumulwng, west tripura, district under higher education departmen.", computerized universal testing machine, 6 pillar type, for conducting tests on various types of ferrous and non-ferrous materials; consisting of-loading unit 600 kn capacity, hydraulic jaws and pumping system, clamping jaws for round specimens, clamping jaws for flat specimens, pair of compression plates,for compression test, rollers of 160 mm width and 30 mm diameters, for transverse test, bending table stopper, allen keys, spanners,double shear test attachment, bend rebend test attachment, electronic extensometer., steel bar cutting machine, vernier caliper, stainless steel ruler, 1m length, mixer machineriesconcrete mixerthe counter balanced mixing drum is easy to tilt two cubic feet mix capacity. total drum volume is 3 cubic feet.. suitable for operation on 220 volt single phase, 50 cycle, a.c. supply, isi cube mouldcube mould, with base plate : as per is : 516 with isi mark cube mould, 15 cm x 15 cm with base plate (made of cast iron - isi mark), cement mortar cube mouldcement mortar cube mould cube mould, 7.06cm x 7.06cm with base plate (made of mild steel), vibrating machinevibration machine with timer : is : 4031 this apparatus is suitable for making cubes of 70.7 mm. for mortar strength evaluation. the mould is mounted on a vibrating platform with a frequency of 12,000 400 vibrations per minute. to the platform are attached four matched springs. the whole assembly is operated by a revolving shaft with an eccentric mechanism. the machine is supplied with a timer, a switch mounted on a steel panel and a 70.7 mm. steel cube mould with a base plate., electronic balancecapacity 500gm, 0.01 gm accuracy, electronic balancecapacity 5kg, 0.1 gm accuracy, electronic balancecapacity 20kg, 0.5 gm accuracy, electronic balancecapacity 100 kg, 10g accuracy, air permeability apparatus (blaine type)isi certification mark is;5516, fitted in aluminium box, vibrating tablevibrating table for compaction concrete cube, cylinders the table deck size 50 cm x 50 cm and has stops along its edges to prevent moulds from walking off the table during vibration the variably pitch pulley arrangement permits the frequency to be varied sleeplessly between a maximum of 3600 vibrations per minute a speed regulation handle is provided for increasing or decreasing the frequency. the vibrating deck. a switch is provided for starting the motor. operation on 440 volts, three phases, a.c. supply. table top - 50 cm x 50 cm, curing tankwater curing bath with agitation system digital indicator for temperature * 24- hour cycle from time of mixing * controlled 100 c +/- 2 c. temp. for concrete * controlled 27 c + 2 c curing temperature for grey cement the tank has been designed to accommodate 150 mm / 70.6 mm casted cubes up to 12/24 cubes and fully insulated. complete with a hinged lid, heated, thermostat and recirculation pump. provision of two removable racks allowing free circulation of water around each cube. the pump, drain valves and electrical equipment are housed in a compartment located at one end of the tanks. the tank is heated by an immersion heater under normal conditions and refrigeration system for grey cement, the temperature is controlled at 35deg.c. +/- 2 deg.c, for about 15 minutes after immersion of the freshly-made specimens. curing tank for 12 moulds of 150mm/24 moulds of 7.06mm, vicat apparatus boxwith isi certification mark, is:5513, fitted in aluminium, le-chatelier mouldwith
Tender For corrigendum : overhauling repairs to water turbine driven horizontal pumping unit at achoora gurez of misd hajin. - overhauling/major mechanical repairs/replacements of damaged non-functional mini water driven turbine (damaged by heavy snow slide) coupled with 03 cusec horizontal pumping unit. the job comprises of following works: pump sidei. engaging of labours in the machine drive chamber by way of moving of boulders and other trash till the machine chamber be cleaned and washed., ii. temporary oiling the turbine and pumping unit on machine chamber side till the the mechanism of machinery is free from rust and dust, then decoupling the pumping unit from the turbine coupling and genset from belting. using skilled labour and other tools and tackles., iii. dismantling of 8 x8 horizontal pumping unit from its existing pump foundation to machine floor smoothly without any hammer stroke using skilled job knowing personnel., iv. dismantling of the pumping unit parts at machine floor,removing of defective rotating kit assembly from the pump body using proper tools to be arranged by firm., v. shifting of the dismantled kit assembly with the allied accessories and defective chain pulley block to road side upto the lead of 150 m by head loading and then loading the rotating kit assembly in private load carrier to be arranged by the firm and shifting to workshop for conducting necessary repairs., vi. complete servicing of rotating kit cum bearing housing at workshop using diesel oil till the whole bearing assembly and rotating parts are washed and cleaned and free from rust and dirt. the job includes dismantling of bearing housing and removing of defective parts like damaged shaft, broken bearings and other items smoothly. the job includes removing of broken bolts from the bearing housing, re-tapping the damaged holes and providing and fitting of new holes., vii. repairs to impeller shaft of the pump by way of rebuilding the damaged portion using arc welding and then machining, polishing, threading completely till the size of the shaft is brought to required specifications. the job further includes providing and fitting of check nut as per sample., viii. manufacturing/providing and fitting of gm bush to suction part and gm cooling ring, gm gland with bolts. the job includes casting, machining, finishing to proper dimensions., ix. providing and fitting of high pressure gasket on suction side and delivery side., providing and fitting of ht bolts of assorted size, xi. rebuilding the wearing ring seats of suction and coupling end plates using ci welding electrodes. the job includes machining and finishing to proper dimensions., xii. repairs to defaced/ damaged impeller shoulder ring seats using ci welding electrodes. . the job includes machining and finishing to proper dimensions., providing and fitting of taper roller bearing on coupling side and gland side. the job includes greasing of bearing xiv. 32315, xv. 32314, xvi. assembling of bearing housing with rotating kit at workshop to check the rotating kit assembly is free from any obstacles and loading and shifting to site in private load carrier to be arranged by the firm including haltage and retun back of workers, turbine side:- repairs to turbine side by way of:complete cleaning and washing of turbine chamber by way of removing of boulders and other trash from the turbine by engaging of labours.complete servicing/ washing/oiling of turbine assembly in turbine chamber till the assembly of turbine and guide vanes are free from the rust and dust and then complete oil washing the guide vanes, guide hinges and outer body of turbineproviding and fitting if turbine shaft gm bush bearingtesting of turbine assembly on no-load decoupled from pump assembly by way of charging of turbine chamber to check the vibration, sound, rpm, setting of turbine guide vanes, hinges to ensure smooth functionre-installation of pumping unit by way of fitting of rotating kit assemblycomplete painting by black japa