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Steel Cold Roll Forming Line
LW500
Scroller car--uncoil—pinch leveling--transverse shear – centering guide device—circle shear—waste edge coil—accumulator—dension device—recoiling machine—unloading car—electrnic control system—hydraulic system
Brief description of production process:
Annealed steel strip coil is first lifted by EOT crane onto the mandrel of the uncoiler. After finishing coil loading, jog the uncoiler press roll to feed leading edge of the steel strip into the leveler for leveling. Then the strip will enter forming unit and passes through forming rolls in turn for shaping into desired profile. After cutting into length, finished products are discharged for bundling at discharging rack.
LW500 Parameters:
Specification |
LW500×3.0 |
Max. Width |
500 mm |
Thickness |
1.0~3.0mm |
Materials |
Q235,Q345B |
Welding Speed: |
10~35M/Min |
Brief description of Equipment functions
1) Uncoiler, flattener
Strip coil is loaded onto mandrel on the side of the uncoiler, which consists of expansion mandrel, fixing base seat, press head device, etc. The mandrel is driven by hydraulic cylinder to hold the coil inner bore. The press roll is lowered to hold down the strip. Air cylinder controls press roll on the uncoiler to feed strip head into the flattener.
oducts are discharged for bundling at discharging rack.
Flattening roll dia.: Φ70 mm; quantity: 9 rolls, synchronize with line speed to feed in strip.
Coil outer diameter Φ1600mm
Coil inner diameter Φ508mm
Strip width 150—450mm;
Coil weight 3t
Strip thickness 1.0~3.0mm
2) Cutter & butt welder
Cutter & butt welder is used to joint the trailing end of foregoing strip with the leading end of the follow-up strip after cutting, so that to ensure continuous pipe making.
Cutter & butt welder uses hydraulic up-cut gate shear.
Maximum cutting thickness: 3.0mm
Maximum cutting width: 500 mm
3) Forming unit
Technical data |
LW450 |
Strip thickness |
1.0~2.5mm |
Product size |
120×100×20 |
Forming speed |
15~30m/min |
Barrel length |
Max450mm |
motor power |
DC55KW |
Horizontal forming stands |
18 stands |
Horizontal roll shaft diameter |
55mm |
Correction roll stands |
2 stands |
Drive method |
Motor—reducer—transfer case—cardan shaft—lower roll shaft |
4) DC speed adjusting: UK Eurotherm driver
5) Hydraulic tracking shear
6) Discharging rack
It consisted of base frame and kickoff device.
7) Hydraulic system
8) Milling rolls: Cr12
Delivery time: 4 months after receiving 30% advance payment, remaining to be paid before delivery.
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