How to select proper Uncoiler Leveler Shear Line for hot rolled steel coil?

Selecting a qualified Uncoiler Leveler Shear Line for hot rolled steel coil relies on coil weight,raw material thickness,feeding width,finished size tolerance and daily production capacity.Hot rolled coils feature higher hardness,thicker gauge and heavier single-coil weight compared with cold rolled and coated steel,which puts stricter requirements on frame rigidity,hydraulic power and leveling roller layout of the whole CTL line.

First confirm core dimension parameters:maximum coil width ranges from 800mm to 1800mm normally,and common hot rolled thickness covers 3mm–16mm.For coils over 10 tons,users need heavy-duty hydraulic shaftless decoiler with matched coil car to realize automatic loading.Second,the leveling section adopts multi-group solid forged leveling rollers with large roller diameter;heavy Plate Leveling Machine structure improves flatness for uneven hot rolled raw sheets effectively.

The cutting part chooses hydraulic flying shear instead of mechanical cutting to overcome large material deformation resistance of hot rolled steel.Besides basic specifications,calculate hourly output to match line running speed:high-output workshop needs variable-frequency linkage control among decoiling,leveling and shearing sections.Reserve 15%extra load margin on motor and hydraulic system to avoid overload during occasional super-thick coil production.If stainless hot rolled coil is involved,anti-wear surface treatment for leveling rollers is necessary.

1.GB/T 7714-2015

[1]Ding L.Type Selection Method of Uncoiler Leveler Shear Line for Hot Rolled Steel Coil Processing[J].Heavy Machinery Technology,2025,37(12):53-60.

2.APA 7th

Ding,L.(2025).Type selection method of uncoiler leveler shear line for hot rolled steel coil processing.Heavy Machinery Technology,37(12),53–60.

3.MLA 9th

Ding,Lei."Type Selection Method of Uncoiler Leveler Shear Line for Hot Rolled Steel Coil Processing."Heavy Machinery Technology,vol.37,no.12,2025,pp.53-60