Tamil Nadu Generation And Distribution Corporation Limited Tender
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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender
Machinery and Tools
Eprocure
Opening Date3 May 2025
Closing Soon26 May 2025
Tender AmountRefer Documents
Costs
EMD
₹ 13,500Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Reconditioning Of Pin Bolt Pin Bolt Inserting Bore Of The Roller Tyre Holding Yoke Frame Assembly Roller Tyre Rtd Cover Plate Worn Out Surface Of Loading Frame Assembly Hydraulic Shaft Tension Rods Renewal Of Worn Out Coal Pipes Dismantling Of Flan
Description
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Contact
Tender Id
2025_EB_554263_1Tender No
OT 12Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
GEM & Bid Advisory Services
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Documents
Reconditioning of pin bolt Pin bolt inserting bore of the roller tyre holding yoke frame assembly Roller tyre RTD cover plate worn out surface of loading frame assembly hydraulic shaft tension rods Renewal of worn out coal pipes dismantling of flanges
BOQ Items
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Charges for rebuilding the 25 to 30 mm tk. weld metal over the worn out undulance surface of loading frame packer plate seating portion of size 500 mm x 70 mm tk. x 3 Nos., worn out vertical sides of three corner coal mill loading frame of size 600 mm x 500 mm depth x 2 sides x 3 Nos., leveling the packer plate seating rebuilted weld metal surface by grinding up to blue matching the surface for smooth seating of loading frame over the packer plates etc…
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Charges for reconditioning of hydraulic shaft tension rods machining of 5mm depth for a length of 1000 mm, filling the special type of weld metal up to dia 160.5 mm x 1000 mm length & finally machining to dia 160 mm x 1000 mm length by mirror polishing including the cost of special type welding electrodes and To & Fro transporting charges etc…
3
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Charges for cutting the worn out dia. 600 mm coal pipes of various length at ‘0’ mtr elevation, cutting the required length of new coal pipes, chamfering the new coal pipes both end, welding the new coal pipe with the existing pipe both ends at ‘0’ mtr elevation including transporting of new coal pipe from central stores to work site etc…(Required qty. of coal pipes will be supplied by TANGEDCO at free of cost)
8
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Charges for cutting the M.S. flange of size ID - 604 mm x OD - 714 mm x 12 mm thick from eroded coal pipe, grinding the gas cutting flange rough surface, positioning the flange to the new coal pipe, welding the flange with coal pipe by inner side 1 run & outer side 2 runs etc…
5
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Charges for cutting the collar seating worn out portion of dia. 600 mm x 200 mm width of 90˚ & 90˚+ 65˚ coal bends, cutting the 200 mm length of new dia 600 mm coal pipe, chamfering the cutting faces, positioning the new 200 mm length coal pipe to the one end of 90˚ & 90˚+ 65˚ coal bends, welding the coal pipe to the coal bend by 3 runs of welding etc…at ‘0’ mtr elevation including transporting of new coal pipe from central stores to work site etc… (Required qty. of coal pipes will be supplied by TANGEDCO at free of cost)
5
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Charges for hard facing of dia 600 mm old coal bend both end at inner side for 100 mm width dia 600 mm circumference length including the cost of hard facing welding electrodes etc…
5
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Charges for cutting the required size of ISA 50 x 50 x 5 mm tk. x 1000 mm length M.S. angle – 8 Nos., welding the angle over the inner side cone of classifier assembly for laying the scaffolding materials, leading, lifting the scaffolding grill materials through the 3.5 mtr. height man hole entry door of inner side classifier cone assembly, laying and binding the scaffolding grills for cutting the worn out deflector cone / coal feeding centre pipe and finally cutting, dismantling the all scaffolding materials, M.S. angles and lead outside from inner cone to out side of classifier assembly after renewal of worn out deflector cone / coal feeding centre pipe etc…
1
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Charges for cutting & removing the worn out deflector cone of size dia 1700 mm x dia 970 mm x 460 mm height x 12 mm thick from centre feed pipe at inner side classifier assembly of coal mill.
1
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Charges for marking, cutting, pre curve formation for bending, fabrication of dia 1700 mm x dia 970 mm x 460 mm height x 12 mm thick deflector cone, chamfering end jointing curved plate, 3 runs of welding over the end jointing curved plate etc… for renewal of worn out deflector cone including the cost of 12 mm tk. M.S. plate etc…
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Charges for chamfering the top & bottom circular portion, leading, lifting, lowering the fabricated 12 mm thick deflector cone of size dia 1700 mm x dia 970 mm x 460 mm height x 12 mm thick over the coal feeding centre pipe, 3 runs of welding to the centre feed pipe top & bottom side etc… for renewal of worn out deflector cone of coal mill classifier.
1
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Charges for removing the existing old refractory from inner side of mill classifier deflector cone to ground floor including the cost of consumables etc…
850
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Charges for transporting the new refractory from MTPS-II central stores to mill plant work site, leading, lifting the new refractory from ground floor to the top of mill classifier.
850
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Charges for removing the existing 2 Nos. of dia 200 mm lid plate from the classifier top, mixing the refractory with water at proper ratio and poured into the deflector cone through lid plate and finally closing the lid plate after completion of work etc…
850
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Charges for marking, cutting & removing the worn out coal feeding centre pipe of size dia 950 mm x 2000 mm length x 12 mm thick at inner side classifier assembly of coal mill.
1
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Charges for marking, cutting, pre curve formation for bending, fabrication of dia 950 mm x 2000 mm height x 12 mm thick coal feeding centre pipe, chamfering the end jointing plate, 3 runs of welding over the end jointing plate etc… for renewal of worn out coal feed centre pipe of
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Charges for chamfering the top & bottom circular portion of fabricated coal feed centre pipe, leading, lifting, lowering the fabricated 12 mm thick coal feed centre pipe of size dia 950 mm x 2000 mm height x 12 mm thick in to the inner side of classifier assembly, 3 runs of welding to the top & bottom side of existing centre pipe etc… for renewal of worn out coal feed centre pipe at inner side of coal mill classifier.
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Charges for dismantling the seal cover two half piece over the spool piece flanges, cutting the existing worn out seal cover seating distance spool piece flanges, grinding the spool piece top surface, Fabrication of 20 mm tk. M.S. flange of size OD-360 x ID-205 mm & drilling & tapping dia. 12 mm x 6 Nos. @ PCD 332 mm, welding the fabricated flange over the top of seal cover seating pipe by using special type of welding electrodes, Hard facing of fabricated flange bottom side for controlling the erosion etc… including the cost of hard facing welding electrodes and 20 mm tk. M.S. plate etc....
3
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Cost of 5 Nos. of Victaulic coupling with collar for connecting the spool piece and coal bend.
5
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Charges for opening of hot PA duct man hole door & hot air duct dummy plate inserting cover, leading, lifting & inserting of 1600 mm x 1800 mm x 8 mm tk. M.S. dummy Plate into top of hot PA duct for arresting of hot air passing from the main duct and finally removing the already inserted dummy plate, closing the dummy plate inserting door cover and hot PA duct man hole door after renewal of seal cover etc…
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Material charges for fabrication of 10 Nos of dia 800 mm x 20 mm tk. M.S. plate for fixing the coal carrying pipe flanges etc… at classifier top of mill.
10
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Charges for marking, cutting, machining, drilling and tapping the dia 20 mm holes x 24 Nos, M.S. fabricated flange of size OD 800 mm x ID 600 mm x 20 mm thick for fixing coal carring pipe flanges etc at classifier Top of mill.
10
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