Creation of manual Over head Gantry 5 ton capacity in place of existing girder with related works at Pumping Station Nakrein

Modification of existing shed and fabrication, erection, testing and commissioning of 5 - ton capacity over- head crane at Pumping Station Nakrein. Job includes dismantling of old existing shed dismantling of sheds roof sheet and purlins of the shed with technical skilled labour. Providing and fitting of Pre color Roof Sheets and Side sheets with superior quality of screws with washers for leak proof sheet fixing as per requirement. Extension of door for shed entrance as per proper size for loading and un loading of electro mechanical machinery. Re-fabrication of shed as per size required for smooth operation of overhead gantry. Design, Fabrication, installation and commissioning of mechanical single girder overhead gantry crane for lifting pumps and motor at newly modified shed of size 21’ x 14‘. The Job includes laying of foundation blocks of size 2’.6” x 2’.6” x 2.6’ depth 2 nos. and disposing of excavated material at proper place. Fabrication of iron mesh of 6” x 6” interspacing from TMT bar of 10 mm and placing them in the pits of foundation blocks . Filling of foundation blocks with concrete cement mixture of ratio (1:3:6) after placing foundation bolts with foundation plates at proper level and opposite alignment .Proper curing shall be done to foundation block so that the cement concrete mixture attains the maximum strength. The crane consists of a manual monorail trolley of 5 ton capacity with 5 ton capacity heavy duty chain block to be provided for the operations of cross travel movement and lifting of heavy duty electrical and mechanical equipment’s. The crane span should be longitudinal and cross travels by means of travel through single girder monorail trolley fixed on main girder which is to be travel on fabricated beams of proper specifications, design, attachments to be fixed on which wheels of monorail trolley move. This monorail trolley with chain block has to be fixed on main girder of crane. The mechanical crane shall comprise of a monorail trolley and chain block confirming to is 3938 cross travel and longitudinal movement of loads with following specifications. The manual monorail trolley shall be installed on the main transverse Indian standard steel beam of ISMB series suitable to take load of trolley with chain block and lifting of electrical and mechanical equipment’s. M S structure shall be fabricated at site inside the shed area for installation of OHT single girder crane .Fabrication of piers as per capacity of crane by designing of accurate span of pier to pier and with foundations for piers , fixing main transverse girder is to be mounted on LT travel ISMB beam should be fixed on fabricated piers top plates in accurate alignment. The ISMB of 200mm of 1 No. and ISMB of 300mm of 01 No. should be used for girder. The job comprises of following fabrications for interconnecting crane structure, Trackers should be fabricated of proper size and specification according to design. Trackers mounted on ISMB girder on which square is to be welded for trackers to run in proper alignment. Crane shall travel longitudinal with shaft of with bearings and couplings and gears with chain. All components are to be designed for strength and adequacy for the operation as per defined load of machinery. Hoisting capacity: 5 ton capacity manual mode by chain block 5 ton capacity, Span (transverse travel) : 14’, Lift :3 mtrs, Longitudinal travel: 20’.The Job includes electrification of extended shed, cost of material, labour, and to and fro carriage charges also shifting of material to Site. Complete job includes cost of material, labour charges and any other miscellaneous items / parts required during execution of the job which includes rebate on old damaged parts and other items. The job should be completed in all respect.