tender for mill roller reselling and deshelling work-1 deshelling & reshelling of conventional mill rollers shell dia 925 x1700 mm length as per drg no. smm-76r3 with grooving & shrink fitted juice rings , material :total carbon - 3.2% to 3.6%, manganese -1%to1.5%, silicon -1.2% to 2.2% , phosphorus -0.5 %max, sulphur 0.15% max. with test certificates of ut, mpi, hardness. 2 deshelling & reshelling of lotus mill roller; shell dia 925 x1700 mm length as per drg no. smm-76r3 with grooving & shrink fitted juice rings, having material: total carbon - 3.2% to 3.6%, manganese -1%to1.5%, silicon -1.2% to 2.2%, phosphorus -0.5 %max, sulphur 0.15% max. with test .certificates of chemical composition ut, mpi, hardness. specifications:-no. of juice holes =12, pcd. =690 mm, juice hole dia =45 mm, nozzles in every groove. 3 shelling of new shaftas semi cotch roller, shell dia 925x1700 mm length as per drg. no. smm 76r3 with grooving & shirnk fitted juice rings as material: total carbon - 3.2% to 3.6 %, manganese - 1% to 1.5 %, silicon - 1.2% to 2.2 %, phosphrus - 0.5 % max, sulphur 0.15% max with test certificate of chemcial composition, ut, hardness 4 deshelling, reshelling of tufr & supply of suitable scrapper specification - toothed ( lotus ) perforated roller feeder ( trf ) with scrapper plate, tie rods. the shell to be made of carbon steel plates as per is:2062 having thickness 25 mm& after machining the shell thickness should not be less than 20mm. the shell od - 800 mm, od including teeth tips - 905 mm & shell length - 1700 mm. the teeth to be 20 mm thk. of forged en-9 steel. the drainage holes to be counter shunk type perforated in the shell their qty&size to be 1250 nos min, size 10 / 12 mm ( top / bottom ) working surface of scrapper shall be ss lined for frictionless passage to dense / drier bagasse mat. scrapper teeth, roller tips & shell portion without holes should be hard faced. for other dimension refer our drg. 5 machining of mill roller new shaft as per drg. no. smm 3r