Scrap Metal Processing — Volume Reduction and Sorting
Industrial Friction
Scrap metal volume reduction for smelting feed preparation demands robust fragmentation systems capable of handling tramp steel contaminants — unexploded gas cylinders, embedded bearings, and hardened alloy components — that cause catastrophic failure in conventional shredding equipment. Hydraulic shears process mixed scrap at 3-6 ST/h with frequent blade replacement (every 200–400 cuts), while mobile hammer mills produce excessive fines that reduce separation efficiency in downstream eddy-current systems. The lack of homogeneous shredded fraction degrades magnetic separation yield by 15–20%, increasing iron loss to landfill and reducing scrap purity grades below foundry specifications.
Technical Solution
The Impaktor 250 EVO II processes light-to-medium ferrous and non-ferrous scrap at 17 ST/h, producing a homogeneous shredded fraction (1-3 in) optimized for downstream magnetic and eddy-current separation. The hydrostatic drive system absorbs shock loads from tramp steel — including solid steel bars and cast iron blocks — without mechanical damage to the drive train, gearbox, or cutter assemblies. The twin-shaft asynchronous kinematics deliver controlled shearing action that maintains ferrous integrity while liberating non-ferrous attachments, achieving 92% material liberation efficiency in a single pass without auxiliary deconstruction equipment.
Economic Impact & ROI
Measured 22% TCO reduction through elimination of secondary handling stages and 60% reduction in unplanned maintenance events versus hydraulic shear operations. Capital payback in 24 months with 42% projected 5-year ROI, driven by improved scrap purity grades (increased foundry acceptance by 18%), reduced landfill iron loss, and 30% lower energy consumption per processed tonne compared to hammer-mill alternatives.