Mechnical Equipments - Withdrawal and Straighening Unit


1	Function	Withdrawal and straightening of cast strand, as well as insertion of the dummy bar.
2	Location	Posterior to the strand guide in the horizontal position.
3	Type of drive	Frequency controlled AC motors via. Gear box.
4	Type of actuation of	Hydraulically.
5	No. of rollers	5
6	Roll material	EN 19
7	Roller peripheral	Approx. 0.4 to 5 M/min speed.
8	Roller pressure	Applied by hydraulic cylinders
9	Hydraulic pressure	Up to 120 bar.
10	Design/Consruction	Five roll unit: Two hydraulically operated top rolls mounted on swivel arms. Fixed lower frame with two driven rolls and one idle roll.
11	Rolls	All rolls are fitted with self aligning special roller bearings mounted in ring tube housings with sealing rings and covers.
12	Drive	A.C.Motors with VVVF Drives
13	Cooling	All rolls and frames are externally water cooled.
14	Lubrication	Grease lubricated through nipples.