Danieli said the two new machines will tap liquid steel every 33 minutes, including decarburization, when operating with scrap and up to 40% of hot metal. They estimate the combination of continuous feeding of preheated scrap through process offgases and not opening the EAF roof for bucket charging will result in energy savings of about 50 kW per ton.

Zerobucket technology features continuous and flexible charging of metallics and quick tap-to-tap times. It also ensures 10% lower power-on time and 40–50% lower power-off time. Danieli Q-Reg electrode-regulation system will perform optimal arc control while a sand eccentric bottom tapping filing system will ensure safe furnace operation, the company said.

According to Danieli, this is the 31st order of Danieli Zerobucket EAF technology in China.

The new furnaces are expected to start operation in 2026.