Deshelling reshelling of mill rollers

Amount

De-shelling and re-shelling of mills old roller shaft of BW mills shrunk fitted on old shaft. Material of shell to be coarse grain cast iron confirming to IS:11202 -1985 with following specifications: Total carbon : 3.2%-3.6% Sulphur : 0.15% max. Phosphorus : 0.5% max. Manganese : 2.2% - 3.2% Silicon : 1.2% - 2.2% Roller shell be coarse grain cast iron having hardness 180-210 BHN a) Shell to be hot shrunk fitted on shaft through its length b) Ultrasonic crack detection to be done and certificate to be enclosed with the bill c) Grooving of shell to be done as per drawing. d) Roller shell size 835 mm dia x 1524 mm long. As per drg. No CE-8686-2 and CE-8688-2

De-shelling and re-shelling of our existing roller and its conversion into lotus type, discharge Mill mill roller, size 835 OD x 1524 mm, alongwith grooving of old mill roller shaft of BW mills shrunk fitted on old shaft. Material of shell to be coarse grain cast iron confirming to IS:11202 -1985 with following specifications: Total carbon : 3.2%-3.6% Sulphur : 0.15% max. Phosphorus : 0.5% max. Manganese : 2.2% - 3.2% Silicon : 1.2% - 2.2% Roller shell be coarse grain cast iron having hardness 180-210 BHN a) Shell to be hot shrunk fitted on shaft through its length b) Ultrasonic crack detection to be done and certificate to be enclosed with the bill c) Juice /keep guard rings to be provided as per drgs. d) Grooving of shell to be done as per drawing. e) Roller shell size 835 mm dia x 1524 mm long. As per drg. No CE-8686-2 and CE-8688-2

Re-grooving of 50 mm pitch mill roller (price to be quoted for each roller)

Re-grooving of 25 mm pitch mill roller (price to be quoted for each roller)

Keyway cutting of mill roller (price to be quoted for each roller)

Machining of Mill roller sharft (taken from CSM ZIRA) as per drawing no CE/8686-2

New juice ring of mill roller as per existing size & design