Tender For De-Shelling And Re-Shelling Of Mill Rollers, gurdaspur-Punjab

De-Shelling And Re-Shelling Of Mill Rollers-1 De-Shelling & Re-Shelling Of Millrollers Size830 X 1525 Mm Along With Grooving As Per Drg.. The Shell Should Be As Per Is Specification.Given As Under:- Total Carbon3.20 To 3.6% Manganese2.2 To 3.2% Silicon 1.2 To 2.2% Phosphors0.5% To Maximum Sulphur0.15 % Max Hardness 180 – 200 Bhn (A) The Roller Shaftwill Be Stress Relieved Before The Ultrasonic Testing Of The Same Before The Reshelling Of The Roller. (B) Set Pin Holes And Guard Keeper Rings To Beprovided Where Necessary As Per Our Drg.. (C) Journal Polishing Test Certificate Of Materialcomposition & Ultrasound Must Be Provided. 2 Reshelling Ofmillrollers Size830 X 1525 Mm Along With Grooving As Per Drg. . The Shell Should Be As Per Is Specification Given As Under:- Total Carbon3.20 To 3.6% Manganese2.2 To 3.2% Silicon 1.2 To 2.2% Phosphors0.5% To Maximum Sulphur0.15 % Max Hardness 180 – 200 Bhn (A)The Roller Shaftwill Be Stress Relieved Before The Ultrasonic Testing Of The Same Before The Reshelling Of The Roller. (B) Set Pin Holes And Guard Keeper Rings To Beprovided Where Necessary As Per Our Drg. (C) Journal Polishing Test Certificate Of Material & Ultrasound Must Be Provided. 3 De-Shelling & Re-Shelling Of Under Feed Roller 550 X 1525 Mm Along With Grooving As Per Drg. The Shell Material Should Beas Per Is Specification Given As Under:- Total Carbon3.20 To 3.6% Manganese 2.2 To 3.2% Silicon1.2 To 2.2% Phosphors 0.5% To Maximum Sulphur 0.15 % Max Hardness 180 – 200 Bhn (A) The Roller Shaftshould Be Stressed Free And Ultrasonic Testing For Any Crack Etc. Before The Reshelling Of The Roller. (B) Set Pin Holes And Guard Keeper Rings To Beprovided Where Necessary As Per Our Drg. (C) Journal Polishing. Test Certificate Of Material & Ultrasound Must Be Provided. 4 De-Shelling & Re-Shelling Of Mill Top Roller 830 X 1525 Mm As Per Drawing Along With Grooving. The Shall Should Beas Per Is Specification Given As Under:- Total Carbon 3.20 To 3.6% Manganese 2.2 To 3.2% Silicon1.2 To 2.2% Phosphors 0.5% To Maximum Sulphur 0.15 % Max Hardness 180 – 200 Bhn (A) The Roller Shaftwill Be Stress Relieved Before The Ultrasonic Testing Of The Same Before The Reshelling Of The Roller. (B) Collar Bolt Holes To Be Drilled And Threaded As Per Drg. (C) Journal Polishing. Test Certificate Of Material & Ultrasound Must Be Provided. 5 Machiningof Mill Roller Shaftas Per Drawing No.

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	26-05-2023	Corrigendum	Date	29-05-2023

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