Heavy Scrap Metal Crushing Machine & Hammer Milling

Transforming Bulky Scrap Metal into Dense, High-Purity Furnace Feed

Foundries and steel mills enforce strict specifications on incoming scrap metal: it must exhibit high bulk density, minimal paint and oil contamination, and an absence of non-metallic inclusions. A metal crusher machine (often built as a high-impact hammer mill or vertical metal crusher) uses raw kinetic energy to shatter, tear, and densify scrap metal into compact, high-value nuggets.

High-Impact Kinetic Crushing vs. Slow-Speed Shearing

While shredders slowly cut and tear thin sheet metals, a heavy metal crusher relies on rotational inertia:

Massive Forged Steel Hammers: High-tensile alloy hammers (weighing anywhere from 15 kg to over 100 kg each) are mounted on a heavy rotor spinning at 400 to 700 RPM inside an armored crushing chamber.

Impact Anvils and Breaker Plates: Scrap metal fed into the machine is struck repeatedly by the swinging hammers and hurled against replaceable manganese steel wear liners (Mn13 or Mn18 alloy).

Densification and Paint Peeling: The violent, repeated impact action breaks brittle alloys, folds ductile sheet steel into dense fist-sized spheres, and chips away baked-on paint, rust, and plastic coatings.

Core Processing Streams for Metal Crushers

Light to Medium Ferrous Scrap: End-of-life vehicle body panels, corrugated sheet roofing, scrap steel drums, and metal household appliances (white goods).

Cast Aluminum and Profiles: Engine cylinder heads, transmission cases, alloy wheel rims, and extruded window frames. The metal crusher fractures cast aluminum along structural grain lines while separating bonded steel bolts and rubber bushings.

Industrial Metal Turnings & Swarf: Tangled bundles of oily steel, brass, and aluminum machining chips are pulverized into free-flowing, de-oiled metal chips suitable for automated briquetting presses.

Armored Wear Protection and Tramp Metal Ejection

Crushing metal creates extreme abrasion and violent mechanical shocks. The entire interior of a metal crusher is lined with modular, interlocking manganese-steel wear tiles that absorb impacts and can be unbolted during planned maintenance.

For impenetrable heavy steel chunks (such as solid axle shafts or crane counterweights), the crushing chamber features a hydraulically backed safety rejection door that pops open to eject the uncrushable object before it damages the main rotor bearings.

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