The Tandem Cold Rolling Mill is used mainly for breakdown rolling of thick sheets/ plates of metals like Copper, Brass and Aluminum where the weight of sheet is on the higher side. It is difficult to return such heavy sheets back to the operator after the pass so the Tandem Mill is advantageous in such scenario because it provides for reversible operation. The sheet can be fed in the mill from both sides thus reducing the handling time and effort. These mills consist of Top & Bottom Rolls of same diameter and one middle Roll of smaller diameter. The drive is give to both Top & Bottom Rolls through a combination of Gear Box — Pinion Stand — Coupling Spindles. Since the diameter of Work Roll is larger in this case, this mill is more suitable for rolling in thicker sheets.

 

Product Specification of Tandem – Cold Rolling Mill 
Machine Type  Tandem cold rolling mill ( 4 stand-6 stand- 8 stand)
Pressing DeviceManual/Mechanical Screw down/ Hydraulic AGC
Input Raw MaterialFerrous and Non-Ferrous Metal
Rolled shape Material Coils, Foils, Strips, sheet
Input thickness 12.0mm-20.0mm
Input width   50mm-1250mm
Production capacity15-30 tonnes/day
Coiler Weight Max*1000-5,000kgs
Mill speed Max*  10-200MPM
Finished Output Thickness / Width0.10mm-0.50mm
Maximum inner / outer diameter of the coil 300mm-350mm – 508mm/1500mm
Maximum rolling force80-400 tonnes
Depression typeMechanical Screw Down / Manual/Servo/ Hydraulic AGC
Transmission modework roll/Backup Roll transmission
Roll bearing lubrication method Grease lubrication/ Air oil Lubrication
Rack section  200 × 350
Electronic control Siemens/Schneider / L & T
Reducer Gear box Elecon/shanti / Self made
Motor Siemens/BBL/ABB
Total installed capacity As per machine specification
Unit size 8 meter x 4 meter x 2 meter (LxWxH)

 

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