complete system of unwinding, straightening and shearing ( 1 set )-coil details coil width 3000 mm (max) coil weight 3.0 ton sheet thickness 1 mm to 2 mm material aluminium coil id 500 - 610 mm coil od 800 mm approx decoiler cum coil car nos. of decoilers 2 nos. two nos. of de-coilers (single mandrel) would be in series with different height. civil work would be in vendors scope 3 jaw centrally adjustable hydraulically operated mandrel / arms manual material head support should be given after loading the coil into the mandrel. decoiler should have the operational function for forward / reverse / inch / auto/manual de-coiler integration with other machines should be through limit switch / proximity switch. speed of unwinding 15-20 m/min(max) motor power of decoiler (hp) should be indicated control for looping linit switch/sensor type supply voltage 440vac / 50hz / 3p drive speed should be motorized adjustable. nos. of coil cars. 2 nos. coil car carrying capacity 3 ton coil car horizontal movement and vertical movement will be done hydraulically by pressing a manual switch. nc servo roll feeder / encoder (to feed the sheet precisely to set length) feeding speed 15-20 m / min(aprox) nos. of rollers 2 nos. top roller adjustment mechanically feeding stroke should be adjustable through hmi screen menu. feeder drive should be servo drive. feed length 100 mm -9999 mm roller material en24/wps d2 grade entry level roller guides exit side anti-buckling plate guide manual/auto. forward/reverse /isolation /inch/jog both rollers should be anti-slipping drive with spur/ helicoil gear linked self adjusted guide roller at the entry the neumerical control (nc) and position encoder should be in a closed loop straitghtener / leveler maximum width 3000 mm minimum 1 mm and maximum 2 mm thickness of sheets. rollers should be 11 nos. (min) rollers should be power driven and gear coupled. sraitghtenning should be 1 mm (maxm.) per meter of length in lenghth wise on any particular location. shearing machine hydrau-pneumatic c-type capacity to shear 3000 mm x 1-2 mm al sheet blade material should be hss or better.. self adjusted guide roller at the entry protective grill and electrical interlock to ensure safe operation slitter saw slitter saw to be fixed after shearing machine to cut the sheet at desired cut to size . roller type sliter saw should be manually adjustable widthwise with measuring scale. four nos. of blades to slit in maxm 5 (five) sections. slitting accuracy =2.0 mm edge missallignment of coil =2.0 mm control panel and programme features control panel consists of plc, hmi and servo drive of mitsubishi/ panasonic/ delta makes with standard accessorries like smps, transformers, isolation switches, mcbs and other standard accessories connecting all other machines. control panel is designed with programmes for set parameters such as feed length, nos. of shears needs, speed, production counting, resetting, presetting etc. documentation and training machine layout details with detailed drawings of machine, assemblies , sub-assemblies, parts operating instructions of the machine and control maintenance manuals including list of spare parts, troubleshooting details, preventive maintenance check list. electrical, electronics, pneumatic and hydraulic circuit diagrams of machine and control system. installation and commissioning complete line from de-coiler1 to sliter saw should be designed within 8.0m length(max). if design can be reduced further well and good. installation, commissioning should be carried out by the vendor at bel - navi mumbai,taloja necessary requirements like, power requirement, compressed requirement etc., to be clearly specified by vendor for advance planning. warranty and delivery 3 yrs of warranty period for the entire system shall be provided commencing from the date of successful installation and commissioning of machine at bel navi mumbai. important instruction pit/stacker and run out table is not required.
