4-high Cold Mill

Φ120(Φ110)/Φ350×(300-350)4-highColdMill Description It is suitable for secondary rolling and finish rolling of common straight carbon steel, alloy steel stainless steel, copper and aluminum strips with the entry thickness less than 2 mm and final thickness ≥ 0.10 mm. It is the modified model with high-precision and more stability and special suitable for rolling of high quality steel and stainless steel. Structure Backing-up roll transmission. It is composed of main motor, gear reducer, double helical spur gear, universally-jointed axle. It is easy for installation and adjustment with its integral seat. The backing-roll is balanced with the spring and adjusted with the nut. The strip tension can be adjusted with the guide roll. The gear reducer, double helical spur gear are lubricated with the splash system lubrication. Material of working roll: 9Cr2Mo. FCD needle roller bearing is adopted for the backing-up roll. A roll exchange device is equipped with the bearing seat for exchange the roll easily. AC and DC main motor for alternative Technical Data Max. press1500KNMode of transmissionBacking-up roll transmissionEntry size2×250Final size0.1×250Cross section of frame190×230Window size410×1200Size of working rollΦ120(110)×350-400 needle roller bearingSize of backing rollΦ350×350-400 FCD bearingMain motorZ4.90KwYCT355,70-90KwMotor for screw down gearY13M2-6,P=5.5KwRolling speed100m/min40m/minSpeed of screw down gear0.048mm/sGear reducerZQ100ZQ85Worm gear for screw downMt=10,Z=40Double helical spur gearA=565;Mn:10;Weight of main frameApprox. 18Recoiler(alternative)Hydraulic or soliddimension4600×2150×2660