Five Stands Tandem Cold Rolling Mill Line With Two Recoilers ( 550 )

Composition

1. Hydraulic expansion uncoiler
2. Hydraulic shear, welding table
3. Horizontal spiral accumulator
4. entry processing table(include tension roll)
5. 4hi mills, 1#-2#-3#-4#-5#
6. Hydraulic backup rollers changing device(5sets)
7. work roller changing device(2sets)
8. output processing table(hydraulic shear)
9. coil discharging car
10. Normal pressure hydraulic system
11. AGC hydraulic system 1Set
12. Oil-gas lubricating system 1Set
13. thin oil lubricating station 1Set
14. Process lubricating Station (Customer prepares)
15. Electric control system
16. thickness gauge system, 2sets

Flow:

Uncoiler→Shear, welding table→Horizontal spiral accumulator→entry processing table(include tension roll)→1# 4hi mill→2# mill→3# mill→4# mill→5# mill→exit processing table(include shear)→recoiler→Coil unloading car

Parameters:

Hydraulic AGC system:

• Electro-hydraulic servo valve: 609 institution, stainless steel oil tank and pipes.
• Include pump, tank, cooler, filter, energy accumulator, heater, valve groups, displacement sensor, pressure sensor, AGC software and computer cabinet, etc.
• System pressure: 31.5MPa
• Work pressure≤18-21MPa stepless adjustable
• Max pressing down speed
• 46# anti wearing hydraulic oil
• Oil cleanness in system: NAS7
• Temperature of oi:45±10℃
• Oil filtering cleanness in pipelines:10um
• Oil filtering cleanness before servo valve:3um
• Return oil filtering cleanness:10μm
• Consumption of cooling water:11m3/h
• Pressure of cooling water in circulation:0.4Mpa
• Electric heater:3×2kW

Electric control system:

• Siemens 6RA80 2-bridge 4-quadrant weak magnet speed adjusting system, Siemens PLC programming reply control.
• Optical cable or profibus cable connect modules to realize communication, with tension joining in.
• Constant coiling tension with coiling diameter increasing and track the tension.
• One main pane, two operator panels, cantilever panel at 1# mill, with current, speed, tension display.
• Control system includes programmable controller, touch screen, pump, actuator, signal inspection, etc., to show machine parameters, running state and fault analysis, with pressure, position sensors joining in control loop.
• Fault comes out, alarm lighting and sounding to remind and 5mins later abnormal signal show up

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!