I. Rolling conditions
Material: carbon steel
Feeding material thickness: 2.5mm  
Feeding material width: 650mm
Finished product thickness: 0.7mm
Finished product width: 650mm   
Rolling speed          
Max. rolling force: 500T
II. Three-stand tandem mill
1. Ф5.2 m horizontal spiral accumulator   one set
2. Guide fittings one set
3. Main mill four sets
4. Technical bench for thickness gauge and tension gauge  three sets
5. Full set of foundation bolts
6. Maintenance platform
III. Miain technical parameters and requirements
1. Main mill: Ф185×750／Ф550×720㎜ two sets (working roller drive)
Ф150×750／Ф550×720㎜ two sets (support roller drive)
（1）、Screwdown device:
1. Electric screwdown motor  Y model 18KW×2 sets
2. Can screw down and screw up simultaneously or screw down and screw up seperately;
3. The screwdown worm-gear set is comprised of double-enveloping worm wheel and worm gear with 400mm centre distance
4. The screwdown threaded rod is B200×8 made of 40Cr
（2）、Mill housing assembly:
1.Two pieces of closing housings( pillar section 300×380mm);
2.Guide fittigs adopts rolling structure;
3.The roller system of the upper support rollers uses hydraulic balance;
4.Provided with rail holder for housing.
（3）、Roller device:
1）. Ф185×750／Ф550×720㎜   two sets (working roller drive)
1. Working roller diameter ×roller face width Ф185×750 Material: 9Cr2Mo
For bearing, it adopts rolling bearing with inner ring
2. Support roller diameter ×roller face width Ф550×720,  Material: 9Cr2Mo
It adopts FCD6492340 bearing.
3. Lubricating method: grease lubrication
4. Roller change method: manual roller change (provided with roller change rail).
2）. Ф150×750／Ф550×720㎜ two sets (support roller drive)
1. Working roller diameter ×roller face width Ф150×750 Material: 9Cr2Mo
For bearing, it adopts rolling bearing with inner ring
2. Support roller diameter ×roller face width Ф550×720,  Material: 9Cr2Mo
It adopts FCD6492340 bearing.
3. Lubricating method: grease lubrication
4. Roller change method: manual roller change (provided with roller change rail).
（4）、Main drive
1）. Ф185×750／Ф550×720㎜  two sets (working roller drive)
1. Drive method: working roller drive
2. Main motor: Z4-450-42    N＝550kW    n=500/1100r/min
3. Main speed reducer:　ZDY500 (1#)、ZLY450(2#)
4. Herringbone gearbox: A＝260mm (provided with lubricating oil pipeline)
5. Cross shaft universal spindle is: SWC （dislocation connection）
2）. Ф150×750／Ф550×720㎜ two sets (support roller drive)
1. Drive method: support roller drive
2. Main motor: Z4-450-42    N＝550kW    n=500/1100r/min
3. Main speed reducer: ZLY500 (3#)、ZDY500 (4#)
4. Herringbone gearbox: A＝850mm (provided with lubricating oil pipeline)
5. Cross shaft universal spindle is: SWC315
2、Rectangular pyramid coiler  one set
Drum size:  Ф508×750mm
3、Ф5.2 horizontal spiral accumulator one set
4、Hydraulic rectangular pyramid coiler one set
1.Drum size: Ф508×750mm   
2.Motor:  Z4-355-22  N=315KW  n=600/1500r/min  
3.Center distance of the speed reducer: 850mm
1.Max. coil weight:  6000kg  
2.Discharge form:  pushing plate, lifting and lowering, expansion and retraction are all hydraulic actions.
5、Hydraulic station one set
6、The technological emulsion station must be prepared by the buyer.
7、Thickness gauge (prepared by the user)
8、Electric control system:
It adopts Eurotherm 590 digital system two-bridge four-quadrant flux-weakening speed control device, constant tension control method, relay system control, PLC.
9、Feeding material direction: right hand manner (in terms of the operation table)