tender for hot and cold vulcanisation of conveyor belt and pulley lagging at nalco mines , damanjodi , 1800 mm width belt joint by hot vulcanization ( per mm of belt width ) of feeder conveyors of both streams of c&c system once in a year . , 1200 mm width belt joint by hot vulcanization ( per mm of belt width ) of acceleration conveyor of c&c and fc-1 of smcp-fldc once in year and fc-2 & fc-3 of smcp-fldc once in 2 years , 1400 mm width belt joint by hot vulcanization ( per mm of belt width ) of swivel conveyor of smcp-fldc once in 2 years , 2000 mm width belt joint by hot vulcanization ( per mm of belt width ) of discharge conveyor of smcp-fldc once in a year , removal of old belt & laying of new belt excluding belt joint ( more than 15 kg per rm length ) , belt detensioning and tensioning for belt replacement in conveyor system with screw take up , 20 mm thick diamond groove rubber lagging of conveyor pulley , 10 mm thick plain rubber lagging of conveyor pulley , 15 mm thick ceramiclagging ( lagging sheet shall be provided by nalco ) , conveyor belt clamping by using mechanical fasteners of qty . less than & upto 10 nos . , patch work ( cold ) on conveyor belt of patch size less than and upto 900 cm2 , belt detensioning / tensioning for rubber lagging of conveyor pulley with screw takeup , belt detensioning and tensioning for drum lagging of conveyor pulley with horizontal gravity take up