Product Details
High Precision S6 High Reversible Cold Rolling Mill Machine
6-Hi cold rolling mill is widely used in cold rolled plain carbon
steel,low alloy steel,and speed up to 600m/min
high productivity of six-roll cold rolling mill, excellent products
with tolerance of strip shape and strip thickness.
Characteristics:
- Can roll wide, thin steel strip
- Less rolling passes and shorter rolling time
- More total reduction can be achieved without intermediate annealing
- Smaller thickness variation
- The cold rolled strip is of good flatness
- Roller housing stands geometry optimizes deformation
- Replaceable integral components of long stroke hydraulic cylinder
- Fast reduction speed
- Large control power
- Hydraulic cylinder for Intermediate roller positive bending is
fixed on mill stand
- Fast roll changing device shortens the roll changing time of
working roll and intermediate roll.
- The rolling passline is automatically adjusted, and the roller
diameter range is large
Configuration
- Hydraulic AGC system is controlled by two-stage computer. It not
only has the functions of constant roll gap, constant rolling
force, thickness pre-control/monitoring, but also has tension AGC.
- The main rolling mill and the left and right coiler are driven by a
complete set of Siemens electronically controlled direct current
motor. (Mixed-mounted structure), SCR power supply
- The rolling mill has hydraulic pressure system, hydraulic pumping
regulation system, side push regulation system, positive and
negative bending roll of intermediate roll, process lubrication
system and equipment lubrication system
- Left and right coilers adopt large tension solid drum, tension
digital control
- The production process interlocking and fault alarm of the unit are
controlled by programmable logic controller (PLC) to realize the
automation of the production process.
- The rolling mill has full hydraulic pressure. It has the control
functions of full stroke second flow control, deviation adjustment
control, automatic preloading control, thickness pre-control AGC,
thickness monitoring AGC, tension/speed AGC, acceleration and
deceleration AGC compensation control, roll eccentricity
compensation, and rolling process database, data display and
operation control, product quality tracking function, high-speed
rolling data automatic recording, automatic report generation,
fault alarm and recording. Recording and other process management
functions.
- Detection, display and fault alarm system of process parameters and
key equipment parameters
- Emulsion cooling system and precision filtration system are used
for process lubrication.
- Safety protection systems such as overload protection, strip
breakage protection and emergency parking are installed in rolling
mills.
- Hard tooth face herringbone gears (grade 5 accuracy) are used for
left and right coilers and main machines. SKF, FAG, TIMKEN are used
for high-speed shaft bearings and Harbin/Wafangdian/Luoyang Bearing
Factory is used for low-speed shaft bearings.
- The unit adopts two-stage computer control to realize the
production process control of the unit. The unit has rolling
schedule calculation, pass distribution, regulation and parameter
optimization. Real-time process parameters and key detection,
display and alarm
- Quick Adjustment of Rolling Line Elevation by Inclined Wedge and
Step
- Quick roll change of work roll intermediate roll (about 8 minutes)
- The unit adopts imported laser velocimeter to realize second flow
control and improve the rate of finished product, while retaining
encoder to measure speed
- The unit tension is measured directly by imported tensiometer,
closed-loop control and digital display
- The main components of high-pressure AGC system, bending roll
system and side roll system adopt imported products; the components
of low-pressure hydraulic system adopt well-known products produced
by domestic imported technology.
- The unit thickness is measured by X-ray thickness gauge made in
China, the encoder is P+F from Germany, and the proximity switch is
made by SICK from Germany.
- The work roll is positioned radially by the side roll support,
which enhances rigidity and prevents side bending. Axis is
positioned by end support door and controlled by cylinder, which is
convenient for on-line roll change of finished product pass and
meets the requirements of stainless steel rolling.
- Oil-air lubrication for backing bearing of roller bearing
1150 S6 High Hydraulic AGC Reversing Cold rolling Mill.
Steel coil parameters |
steel coil material | plain carbon steel, low alloy steel |
Incoming SS coil strip | 750-1050mm x 1.5-3.5mm |
Incoming SS coils | 610mm ID, 2000mm OD, 20T |
Cold rolled finished SS coil strip | 750-1050 x 0.25-1.2mm |
Reverse Rolling mill parameters |
Rolling mill speed | Max 600m/min |
Rolling force | Max 15000KN |
Recoiling tension | Up to 400KN |
Work roller, middle roller spec. | Ф260-248 /390-370 x 1200mm |
Backup roller spec. | Ф1050-1020 x 1050mm |
Main motor power | 1500KW x 2 |
Recoil motor power | 1500KW x 2 |
Electric control | Hydraulic AGC, Siemens RA80 DC Drivers, PLC, X-ray Thickness Gauge
system |
Liquid conditions | Thin oil lubrication for gearboxes, oil gas lubrication for bearing
seats, hydraulic stations, rolling process coolant system |
Automatic roller changing | Hydraulic motor and cylinder drive, to realize automatic roller
change |
Company Profile
We are metal coil sheet processing machine manufacturer and
supplier, we dedicate to supply of good quality machines and
provision of complete services.
We work in the coil processing machine field for over 20years, we
design and make each machine customized. From machine parts
materials selection, each part machining and treatment, whole
machine assembly and surface painting, we carefully note each
detail of whole production process to achieve good quality machine
result.
Rich Experiences:
Our people witness the developing process of sheet processing
machines and develop ourselves with market, thus able to supply
customers good machines at competitive prices.

Efficient Responses:
Investment of metallurgical equipment is a system engineering,
which requires comprehensive plan and successive execution. The
efficient responses of the equipment suppliers are very important.
We did well in this and cooperate with customers for long time.

Senses of Mission:
Nothing proceeds smoothly without any problem, the important is to
face and solve the problem. We put problem solution in priority,
never escape responsibilities. Supply of good machines creating
profit for customers is our mission, the most profitable equipment
is the best. Customer is the King, we must provide him the most
suitable machine to return his trust.

After-sale Services:
We can send engineers to customer plant to do machine installation
and commissioning; we provide hydraulic schematic drawing, electric
principle diagrams, mechanic spare parts drawings, civil works
drawing; We always listen and give consultation.
Welcome to inquire us! welcome to visit our plants!
