4-HI AGC REVERSE COLD ROLLING MILL

 

 

Used second hand 4-hi AGC reverse cold rolling mill
rolling requirements：
material type stainless steel 201
material thickness:≤3.0mm   material width: ≤1000mm
product thickness:≥0.25mm  product width: ≤1000mm
rolling speed: design speed V≤230m/min（under load working speed 210m/min）
rolling pressure:P≤1400t
equipment compositions：
main frame： Ф190 ／Ф900×1180 AGC
Ф190/Ф900×1180 4-hi AGC reverse cold rolling mill
（1）、pressing down device： servo oil cylinder made in tianjin
（2）、stand compositions：
1. 2 closed houses（column section area：500×600㎜）；
2. top and bottom back up rolls are hydraulic balance， top working rolls are hydraulic lifting；
3. working rolls seam open mouth height≤20㎜，in order to enter coil；
4  with front and rear holding rolls, thickness gauge, hydraulic pressing down device and hydraulic squeeze plat form；
5. ingle side adjustable wheel entering guiding device at entrance side；
6. transmission foundation, whole set foundation bolts and stand plat form；
7.QNT-2 thickness gauges    2 pieces   supplied by customer
（3）、rolls：
1. working rolls diameter× rolls surface width Ф190×1180㎜      
material type：9Cr2Mo
adopts rolling bearings
2. back up rolls diameter× roll surface width Ф900×1150㎜      
material type：9Cr2Mo
bearings are FCDP106156570
3. lubrication type： air-oil lubrication
4. rolls changing type： hydraulic changing（with changing guide rail），working rolls hydraulic changing
（4）main transmission：
1. transmission type： back up rolls transmission
2. main motor：Z630-4A  N＝780KW 2 pieces n=280/850r/min（Xishan motor）
3. Herringbone gear box： compound gear box     （with lubrication oil pipes）
5. cross cardan shaft：SWC490（stretching type）cardan hydraulic shaft hugging device

hydraulic expanding uncoiler configuration：
uncoiling type： uncoiling direction is upward， composed of cone, main body, foundation, pressing rolls and trolley.
Cone composed of 4 fan plates, rotating oil provider give oil for expanding cylinder, reducer box is welded, pressing rolls composed of rack, pressing rolls and hydraulic cylinder, fixed on uncoiler body.
cone dimension：Ф490-Ф518×1200mm
motor：Z4-315-42  N=315KW  n=750/1600r/min  （Xishan motor）
reducer：850
max coil weight：20T  max coil diameter：φ1800㎜
trolley driven by hydraulic motor， lifting oil cylinder
3-roll powerless leveling： rolls Ф160×1180mm
top rolls hydraulic actions

c. solid coiler      2 pieces
1. cone dimension：Ф500×1180mm
2. motor：Z630-4A  N=830KW  n=280/850r/min  （Xishan motor）
3 motor：ZLY710 （Tailong）
4. coiling tension：≤20T   max coil weight：20T  max coil diameter：φ1800㎜
5. rolls pressing device top pressing type（encapsulation）

d. hydraulic station
1. 11MPa 一台 1 piece of middle pressure 11MPa；
2. condenser、energy saver、pressure gauge、3-level filter、unloading device overflow valve、system pressure control function。

e. oil lubrication station：125L/min   1 piece
(lubrication for rolling mill, coiler reducer, Herringbone gear and bearings)

f. electrical control： remote
It adopts SIEMENS 2-bridge 4-phase weak magnetic adjusting device, simulation constant tension control method. Relay system control, with programmable PLC (Siemens). Current, voltage and other parameters display on instruments.

C. installation and test running：
1. seller will foundation drawing and rolls drawings in 1 month after contract come into force；
2. seller will provide easy wear parts list and electrical drawing ；
3. seller will help installation and test running。

Remarks:
Mechanical and hydraulic sections were made in 2014.Electric system will be made new.

 

 

 

Ref. No. BPMB121831