Aluminium hot dross recovery machine

Every foundry and extrusion plant with its own melting furnace generates dross — and most sell it to scrap dealers for a fraction of the metal's value, even though typical hot dross still holds around 40% aluminium. This machine reverses that trade: it recovers more than 85% of the aluminum locked in the dross and returns it straight to your own furnace.

The process is fast but has one hard condition: dross must be treated hot, straight from the furnace, at 700–800°C. Hot dross is loaded into the pot by forklift or chain hoist (the smaller version uses an electric lift), a stirring paddle works the charge with a deslag flux agent, and the liquid aluminium separates and runs down a launder into a collection pot. One cycle takes about 15 minutes. The residue then goes through water cooling, an iron-ball mill and screening into three size grades — the fines return to remelt or are sold as a clean, graded material instead of raw dross.

Three charge sizes are available: 200, 400 and 600 kg of dross per cycle. To be honest about the limits: above 600 kg per cycle this design stops making sense and a rotary furnace is the right tool — we supply those too. Budget for wearing parts (stirring paddles, aluminium liquid pots, the launder) and plan for dust extraction; the dust collection add-on is optional on paper, but for continuous operation we simply recommend it.

The payback maths could not be simpler: put your monthly dross tonnage, the price the scrap dealer pays you and the price of the aluminium you buy in side by side. Send us those three numbers and we will return the calculation and the right machine size.