4 Roll Reversing Cold Rolling Mill

• Customization: Available
• Customized: Customized
• Condition: New
• Model NO.: 4 roll
• Power Source: Electric
• Automatic Grade: Automatic
• Type: Four-Roll Cold Mill
• Certification: ISO, SGS
• Raw Material Thickness: 2.5mm-3.25mm
• Material Quality: 300 Series Stainless Steel
• Material Width: 350mm-550mm
• Output Thickness: 0.5mm-1.95mm
• Max. Rolling Weight: 6 Ton
• Drive Mode: Support Roll Drive
• Max. Rolling Pressure: 6000kn
• Unit Dimension: 8mx14mx4m
• Transport Package: Plywood and Plastic Film Packed
• Specification: 650mm 4 hi reversible
• Trademark: moran
• Origin: China
• HS Code: 8455221000
• Production Capacity: 10 Sets Per Year

Product Description

4-Roll Reversing Cold Rolling Mill

Note:  We can design the machine according to your requirements!

1.Brief Introduction

The 4-roll reversing cold rolling mill  will carry out finish rolling of stainless steel coils with material thickness of 2.5-3.25mm. After several passes of rolling, it will be rolled into high-precision cold-rolled steel coils of 0.5-1.95mm, using a single-stand reversible four-roll cold rolling mill to ensure high-speed and stable production of thin gauge products.

Characteristics of the Cold Rolling Mill
4 High reversing cold rolling mill is the cold rolling production line which adopts UCM-type single-stand mill. It rolls pickled hot rolled coils into cold hard coils. The unit is equipped with hydraulic AGC. The work roll is equipped with positive and negative bending and subsection cooling. The intermediate roll is equipped with the positive bending and moving, and the front and rear frames are equipped with double X-ray thickness gauge, etc. its Characteristics:

1.Uncoiler is equipped with CPC automatic centering function, which adopts EMG products from Germany, and improves the centering response speed and position control accuracy.
2.Rolling line adjustment equipment adopts stepwise wedge combination adjustment, and the input roll diameter can quickly and automatically control the stepwise wedge displacement of the oil cylinder drive to the right position, realizing automatic and quick adjustment of the rolling line;
3.Positive and negative bending of the work roll; the intermediate roll has transverse moving presetting, locking, and positive bending control measure. The bending roll can be controlled from single side; rollers are equipped with subsection cooling and roll shape adjustment. Multiple-plate-shape control measure is able to better control the plate shape of finished strips.
4.Double-station roll changing carriage is adopted, which realizes the swift changing between the work roll and the intermediate roll.
5.Roll system of the rolling mill, the turning roll, and the oil removal roll bearing adopt air-oil lubrication, which can prolong the bearing's life and reduce oil consumption, pollution and maintenance quantity with high lubrication efficiency.
6.X-ray thickness gauge is adopted, improving the thickness precision of finished strips.
7.The whole control system of the Six-High CRM adopts full digital AC driving devices, PLC Unit process control and remote communication network technology. The power supply and distribution, AC and AC motor control, PLC system, remote I / O system, AGC system and human machine interface (HMI) are integrated through two-level network. In the design, the interfaces between each system are designed in a unified way, so as to form the whole automatic control system of modern CRM.
8.The electric system takes safety protection measures of overload protection, strip breakage protection, emergency cut-off, etc.; the unit is equipped with functions of strip tail automatic deceleration, accurate stopping and multi-point stopping; coiler is equipped with functions of cycle memory, strip length calculation, and jaw accurate positioning.
9.AGC automatic system adopts "S7-400+FM458" structure, which makes the utmost use of the controller and matches the quick response of the high-speed rolling mill.
10.In the second-level automation controlled by AGC, rolling schedule is further improved.
11.All key components and parts of hydraulic system adopt import components and parts, which improves system reliability.
12.Hydraulic AGC system is equipped with advanced functions of constant roll gap control, constant roll force control, constant thickness control, mass flow control, thickness pre-control, tension/speed automatic control, etc. 

 

2. Main Technical parameters of 4 High Reversing cold rolling mill 650mm wide

 

No	Specification	Data
1	Specification   of Rolling Mill	160/F550´650 mm
2	Drive   Mode	Support   Roll drive
3	Max   Rolling Pressure	6000KN
4	Max   Rolling Speed	120m/min(low   gear); for the high gear: 360-480mpm
5	Max   rolling torque	335   KN*M
5	Winding   tension	0-70KN
6	Winding   speed	0-130m/min
7	Work roll size	F160×650  mm
9	Back   roll size	F550×600   mm
11	Solid   core diameter of mandrel of coiling machine	F500  mm
12	Rolling   line elevation	+1000  mm
13	Housing   section	35cm×45cm=1575   cm2
14	Turning   Roller diameter	200  mm
15	Unit   mechanical equipment electrical installation capacity	DC: 430KW+185*2KW=800KW   AC: ≈200  KW
16	Maximum Lifting component weight	≈5  t(supporting roll device)
17	maximum   installation part weight	≈13  t( housing section)
18	Unit   dimensions	≈8x14x4  m

3.Product Program

Standard of coming material

Material quality	300 series stainless steel
Mechanical Properties	σs≤400  N/mm2
Thickness	2.5~3.25mm
Width	350-550mm
Rolling diameter(interior /exterior)	Φ500/1600/mm
The maximum rolling weight	6t

Standard of finished products 

Thickness	0.5-1.95mm
Width	350-550mm
Rolling diameter(interior/exterior)	Φ500/(Φ1600)mm
The maximum rolling weight	6t

Specification   of our main Cold Rolling Mill

Specification   of our main Cold Rolling Mill
roller   Type	4-roller   , 6-roller, 8-roller, 12-roller, 20-roller cold rolling mill.
Stand   Type	single-stand  reversible cold rolling mill; tandem cold   rolling mill( from 3 stands to 6 stands)
Size   of finished products	Width:   from 350-1450mm; Thickness: from 0.1mm to 3.0mm
Application	our   range of products covers all areas of the cold rolling industry, suitable for   the production and upstream & downstream sectors of cold-rolled products   such as plain carbon steel, stainless steel, alloy steel coil and plate.