Technical specs of 1450 skin pass

made in 2014, not used 

A.    craft specs：

1.      material type: low carbon steel

2、material size：（0.2~1.5）×1250 mm

3、max rolling force：7000KN

4、coin ID and OD：φ508/φ1600mm

5、rolling speed：180m/min

6、coil weight：（max）≤18.0T

7、recoiling tension：≤50KN

8、leveling type：dry and humid

9、feeding direction：

B. specs

1、main machine spec：φ420/φ840×1450  4-roll leveling machine

   transmission: working rolls

Composed of pressing device, stand, rolls, balance device, main transmission and roll changing device.

    a、hydraulic pressing device(hydraulic APC system)

       adopts APC hydraulic pressing control

       pressing oil cylinder: made of alloy

       Function: pressure control and display

   b. rolls

     working rolls：φ420×1450mm    material type  9Cr2Mo

     bearing： FC487220 for rolling mill

     back up roll：φ820×1400mm    material  9Cr2Mo

     bearing：FCDP100136450 for rolling mill

     bearing lubrication type: dry oil

     back up roll balance type: hydraulic

     rolling line standard height：+950mm

   c. stand

house column section：420×500mm   stand material：ZG270-500

whole processing, manual shovel and with window sliding plate

rolls axial direction location type: pressing plate type

   d. main transmission

bottom working roll single shaft transmission

main motor：Z4-355-42  400KW  600/1300rpm   440V

main reducer：ZLY450

universal shaft：SWC350 cross metallurgical universal shaft

   e. before and after mill device

with shape rolls at entrance and holding rolls at exit。

   f. Roll changing device: hydraulic, with changing car for working roll changing and bracket between top and bottom back up rolls

   2. “S” roll device before and after mill

top S roll motor：Z4 series， 200KW，

bottom S roll motor：Z4 series， 132KW，

top and bottom S roll reducer：ZLY280 hard face reducer

top and bottom S roll size：φ900×1450mm

pressing coil size：φ160×1450mm

3、shearing and pinching device：

with function of assisting feeding, shearing and pinching as following：

after guiding plate swing, shovel plate reaches out to guide coil into 2-roll pinching device by holding rolls, with help of rubber pressing plates and guiding plate, coil head pass S roll, then through guiding leveling machine roll seam and forward into recoiler and pinched and recoiled。

4、uncoiler（with EPC system）

     type: hydraulic cone expanding, fluctuation, auto centering

 cone size：φ508×1450mm   expanding range 30mm

 motor：Z4-315-41   160KW   400/1200rpm

 reducer: self made

 attachments: hydraulic coil pressing device, assistant holding, hydraulic pressing rolls and run out car

5、recoiler

     type: hydraulic cone expanding，

 cone spec：φ508×1450mm   expanding range 30mm

 motor：Z4-355-42   250KW   400/1200rpm

 reducer: self made, oil lubrication

attachments: hydraulic pushing device, assistant holding, hydraulic pressing rolls and run out car

6、hydraulic station

  with cooler, energy saver, point pressure gauge, unloading device, overflow valve, filer, level display and system pressure control functions。

  7、lubrication oil station：for lubrication and cooling of bearing in reducer。

composed of oil feeding pipe, oil return pipe, pump, motor, cooling, filter, valve and gauge。

  8、electrical system：

  it adopts imported SIEMENS 6RA70 DC driver。

C. scope of supply：

1、run out car

2、uncoiler

3、shearing and pinching device

4、S roll device before mill

5、tension stand

6、shape roll at entrance

7、main stand（include rolls, hydraulic APC system and power system）

8、balance roll at exit

9、tension stand

10、S roll device after mill

11、shearing and pinching device

12、recoiler

13、roll changing device

14、foundation bolts

15、lubrication oil system

16、hydraulic system

17、electrical system

D. craft flow                   entry car

                       uncoiler

                   shearing and pinching device

                   S roll device before mill

                       shape roll

                        main rolling mill

  balance roll

 S roll device after mill

shearing and pinching device

                        recoiler

E. scope of supply of buyer：

pipes and wire；

foundation building；

pats and wires；pipe and joints for hydraulic station, oil station and craft lubrication station；

installation of mill(mechanical, hydraulic and electrical devices)；（seller will send technician to help）

hydraulic oil, emulsion, coil, gear oil, lubrication oil；grease for test running and thickness gauge

AC electrical power：

spare parts

seller will provide brand, model or drawing of spare parts for buyer purchasing