Intelligent Electric Arc Furnace (EAF) for Green Steel

Nov. 21, 2025

Intelligent Electric Arc Furnace (EAF) for Green Steel


Intelligent Electric Arc Furnace (EAF) for Green Steel: Driving Low‑Carbon, High‑Efficiency Steelmaking


In the global steel industry’s bold pivot toward sustainability, the Intelligent Electric Arc Furnace (EAF) is emerging as a cornerstone technology for Green Steel production. As we face ever-more stringent carbon emissions targets and intensifying market demand for low-carbon materials, our next-generation EAF solution offers a powerful, scalable, and intelligent pathway to transform how steel is made — combining cutting-edge automation, real-time control, and process optimization to achieve ultra‑low CO₂ emissions, maximized energy efficiency, and unprecedented production agility.


1. Why Green Steel Matters


Steel is the backbone of modern infrastructure, powering construction, transportation, machinery, and countless industries. Yet, conventional steelmaking — dominated by blast furnace (BF) and basic oxygen furnace (BOF) routes — remains carbon-intensive. According to industry data, steel production accounts for a substantial portion of global CO₂ emissions. The shift toward Green Steel is not just a regulatory imperative; it's a business opportunity. Investors, governments, and downstream customers alike are placing increasing value on steel produced with lower carbon footprints.


As nations race toward net-zero targets, steelmakers are under mounting pressure to decarbonize. The International Finance Corporation (IFC) has already backed initiatives to modernize electric arc furnaces, illustrating the capital commitment to low-carbon steel. (Reuters) Simultaneously, large industrial players are rethinking their production models: traditional coal-based blast furnaces are giving way to EAF-based systems that rely on electricity — ideally, from renewable sources.


2. The Rise of Intelligent EAF Technology


At the heart of this transformation is the Intelligent Electric Arc Furnace — a smart, digitally enhanced EAF architecture that leverages big data, artificial intelligence, and automation to deliver optimized, efficient, and cleaner steel production.


2.1 Energy Efficiency & Carbon Reduction


Advanced Control Systems: Our intelligent EAF system implements real-time monitoring and feedback control to dynamically adjust power input, electrode position, and melting parameters. This reduces over‑consumption of power and minimizes energy waste.

Pre‑heating & Scrap Optimization: By integrating scrap pre‑heating systems and optimized charge strategies, the furnace reduces the energy required to melt scrap, lowering the kWh per ton of steel.

Parameter Coupling for Emissions: Innovative process models optimize multiple variables — such as metalization rate, charge temperature, and chemical composition — to minimize carbon output. Recent research in hydrogen-based direct reduction iron (DRI) coupled with EAF has shown that adjusting these parameters can reduce carbon emissions significantly. 

Smart Energy Management: On‑site energy management platforms, supported by AI algorithms, can predict and adjust energy demand, aligning EAF power draw with renewable energy availability, thereby reducing the carbon intensity of each ton of steel produced.


2.2 Digital Intelligence & Automation


Data‑Driven Decision Making: Through digital twin technology, each EAF is mirrored virtually, allowing operators to simulate and optimize melting cycles before real-time execution.

Predictive Maintenance: Using sensors, machine learning models, and anomaly detection, the intelligent EAF can forecast component wear (such as electrodes, refractories), schedule maintenance proactively, and minimize unplanned downtime.

Process Optimization: AI-driven algorithms continuously analyze operational data (power, temperature, chemical composition) to recommend process adjustments that improve throughput, yield, and energy efficiency.

Quality Assurance: Integrated quality-monitoring systems ensure that chemical composition and metallurgical properties meet customer specifications — reducing scrap, rework, and material waste.


2.3 Scalability and Flexibility


Modular Design: Our intelligent EAF solutions are modular, enabling scalable deployment from small mini-mills to large-scale steelworks. This modularity supports capex-efficient rollouts and phased expansion.

High Throughput Capability: Thanks to high-power electric systems and optimized charge strategies, intelligent EAFs offer high melting capacity while keeping energy consumption per ton of steel low.

Retrofitting Existing Assets: Legacy EAFs or even older furnace installations can be retrofitted with smart control systems, sensors, and automation platforms — enabling an accelerated path to decarbonization without full-capacity rebuilds.


3. Strategic Advantages for Steel Producers


Deploying intelligent EAF technology yields compelling strategic benefits for steel producers, investors, and downstream partners:


Carbon Compliance & Market Access
By achieving significantly lower CO₂ emissions, steelmakers position themselves favorably under global regulatory regimes (carbon pricing, border adjustment mechanisms) and gain access to premium green-steel markets.


Capital Efficiency
Modular, scalable EAF solutions reduce upfront costs, especially when retrofitting existing plants. Enhanced operational efficiency and predictive maintenance reduce both OPEX and CAPEX risk.


Competitive Differentiation
Producing high-quality, consistent, low-carbon steel provides a strong differentiator in a market where sustainability credentials matter to customers, OEMs, and financial backers.


Operational Resilience
Intelligent controls and predictive maintenance improve reliability and uptime. In volatile energy markets, smart energy management allows EAFs to align their load to times when renewable energy is abundant, buffering cost spikes.


Sustainable Growth
Embracing intelligent EAFs supports long-term sustainability goals. Steelmakers can scale their green capacity, reduce lifecycle emissions, and future-proof operations against tightening environmental regulations.


4. Supporting Evidence & Industry Momentum


In China, innovation in green intelligent EAF short‑process technology has already borne fruit. Research teams have developed systems with lower electricity consumption, high scrap utilization, and digital control — addressing key inefficiencies in traditional EAF operations. 

According to Chinese market analyses, advanced EAF capacity (100-ton and above) is expected to rise sharply, with intelligent monitoring systems reaching very high coverage, thereby reducing carbon emissions by thousands of tons annually per unit. 

On a national scale, China’s low-carbon metallurgical innovations have elevated the country into the “world first tier” for low-carbon metallurgy, including demonstrator projects like “hydrogen-based vertical furnace + near-zero carbon EAF.” 

Globally, market forecasts underscore strong growth: The electric arc furnace market is projected to expand at a compound annual growth rate (CAGR) of over 6% through 2030. 

Automation and digital infrastructure players are also heavily investing: companies like Schneider Electric are partnering with steel producers to deliver dual-track digital and electrical transformation, helping steelmakers switch from coal-based blast furnaces to EAF-based green routes. 


5. How Our Solution Delivers


Our intelligent EAF offering is underpinned by a robust, end-to-end solution:


Consulting & Digital Road‑Mapping
We help steel producers assess their current infrastructure, model digital transformation pathways, and build a business case for intelligent EAF migration.


Engineering & Integration
From smart sensors and control hardware to data pipelines and digital twin implementation, we design and deliver a fully integrated system tailored to your site.


Process Optimization & Commissioning
During commissioning, we refine control strategies, map optimal melting cycles, and implement AI-based optimization to ensure high yield, low energy consumption, and stable quality.


Training & Change Management
We train operational teams to use digital dashboards, understand predictive maintenance alerts, and embrace data-driven decision-making. This includes upskilling in data analysis, anomaly response, and continuous improvement.


Ongoing Support & Analytics
Post-deployment, we provide 24/7 analytics support, model updates, and performance tracking. Our predictive maintenance system helps anticipate maintenance needs, reducing downtime and extending equipment life.


6. Impact Metrics & ROI


By adopting our intelligent EAF solution, steelmakers can expect:

CO₂ Emissions Reduction: Potential reductions of tens to hundreds of kilograms of CO₂ per ton of steel, depending on local energy mix and scrap feed — driven by optimized power usage and smarter process control.

Energy Consumption: Significant decreases in kWh/t due to scrap pre-heating, precise control, and reduced idle melt time.

Operational Efficiency: Higher utilization rates, fewer unplanned halts, and better yield via predictive maintenance.

Cost Savings: Lower OPEX per ton, and reduced maintenance cost due to fewer emergency repairs and longer refractory and electrode life.

Throughput: Increased throughput from more consistent melts, faster cycle times, and reduced downtime.


7. Why Now Is the Right Time


Policy Momentum: Governments globally are tightening emissions regulations, and financial institutions are supporting green steel investments. Investing in intelligent EAF technology now positions steelmakers to benefit from subsidies, tax credits, and access to low-carbon financing.

Market Demand: Customers across industries (automotive, construction, consumer goods) increasingly request low-carbon steel. By being an early mover, you can capture market share in the growing green-steel segment.

Technological Maturity: Intelligent EAFs are no longer theoretical. Proven research, successful pilot projects, and real-world deployments are driving adoption. The cost of digital and AI technologies has fallen, making large-scale deployment feasible.

Competitive Edge: Upgrading now creates differentiation: lower cost per ton, lower carbon footprint, and better operational reliability all contribute to sustainable competitive advantage.


8. Partner With Us for Your Green Steel Journey


We invite steelmakers, investors, and industry stakeholders to join us in redefining steel production with Green Steel powered by Intelligent EAFs. Whether you are evaluating a retrofit, planning a greenfield green steel plant, or exploring phased digital investments, we provide the expertise, technology, and support you need.

Contact us for a site assessment and digital readiness review

Explore a proof-of-concept (POC) pilot tailored to your scale and production goals

Build a long-term roadmap for intelligent EAF adoption, monitoring, and continuous optimization

Together, we can align your steelmaking operations with global sustainability goals, reduce your carbon footprint, and unlock new value in the green steel economy.




Latest Products

Customized metallurgical machinery and equipment range: Electric Arc Furnace, Submerged Arc Furnace, LF Refining Furnace, Vacuum Furnace, Induction Furnace, Dust Remove System, Water Treatment Equipment, etc. Providing the most advanced equipment integration services, metallurgical equipment can be customized according to different needs of customers, and production capacity can be adjusted according to customer requirements.

Electric Arc Furnace

Submerged Arc Furnace

LF Refining Furnace

VD / VOD Vacuum Refining Furnace

Induction Furnace

Furnace Accessories

5 Ton Electric Arc Furnace

5 Ton Electric Arc Furnace

The 5 ton electric arc furnace for steel-making is a special purpose equipment that makes ordinary steel, quality carbon steel, alloy steel and non-corrosive steel with electric arc as heat source and scrap steel (iron) as raw material.

15 Ton Electric Arc Furnace

15 Ton Electric Arc Furnace

15-ton electric arc furnace is used for the short-process steelmaking process, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.

30 Ton AC Electric Arc Furnace

30 Ton AC Electric Arc Furnace

The 30-ton AC electric arc furnace is used to melt scrap steel to produce steel. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode.

30 Ton Electric Arc Furnace

30 Ton Electric Arc Furnace

30 Ton electric arc furnace is used for steelmaking short process smelting, using 100% scrap steel or scrap steel + molten iron (pig iron), or scrap steel + sponge iron (DRI) as raw materials for steelmaking.

50 Ton Ultra-high Power Electric Arc Furnace

50 Ton Ultra-high Power Electric Arc Furnace

The 50-ton ultra-high power electric arc furnace (50TUPH EAF) adopts ultra-high power, high impedance technology, bottom tapping technology (ETB), furnace wall oxygen oil burner and furnace door carbon-oxygen gun technology.

DC Electric Arc Furnace

DC Electric Arc Furnace

DC electric arc furnace is an electric arc furnace supplying electric energy with DC power supply. There is only one electrode on the top of the DC arc furnace, which is the negative electrode, and the bottom electrode is the positive electrode.

Electric Arc Furnace

Electric Arc Furnace

Electric arc furnaces are used to melt scrap steel for steel production. Electrical energy is used to melt scrap steel. An arc forms between the charged material and the electrode. The heat generated by the arc melts the scrap.

Electric Arc Furnace Steel Making

Electric Arc Furnace Steel Making

Electric arc furnace steel making is a steelmaking method that uses the thermal effect of electric arc to heat the charge for melting.

Ultra-high Power Electric Arc Furnace

Ultra-high Power Electric Arc Furnace

Ultra-high power electric arc furnace mainly changes the arc characteristics of high voltage and long arc to the arc characteristics of high current, low voltage and short arc

1 Ton Electric Arc Furnace

1 Ton Electric Arc Furnace

1 ton electric arc furnace is used for melting steel and titanium scrap metal. The principle of electric arc furnace is based on the generation of direct current, which converts electrical energy into heat energy through electrodes to melt the metal.

2×36000KVA Closed Pig Iron Submerged Arc Furnace

2×36000KVA Closed Pig Iron Submerged Arc Furnace

The closed pig iron furnace (submerged arc furnace iron making) is a non-blast furnace iron making method. Under the premise of guaranteeing the power supply, it is easy to solve the problem by using the reducing agent required by the submerged arc furnace iron making.

Ferroalloy Refining Furnace

Ferroalloy Refining Furnace

The main mechanical device design of Sanui ferroalloy refining furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.

25.5MVA Ferronickel Submerged Arc Furnace

25.5MVA Ferronickel Submerged Arc Furnace

The Ferronickel submerged arc furnace is a special submerged arc furnace used for smelting nickel-iron alloy. Its main function is to add nickel ore, carbonaceous reducing agent (such as coke) and limestone and other raw materials into the furnace in a certain proportion

Ferrosilicon Furnace

Ferrosilicon Furnace

The main mechanical device design of Sanui ferrosilicon furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.

High Carbon Ferrochrome Furnace

High Carbon Ferrochrome Furnace

The main mechanical device design of Sanui high carbon ferrochrome furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.

25500KVA Industrial Silicon Submerged Arc Melting Furnace

25500KVA Industrial Silicon Submerged Arc Melting Furnace

Industrial silicon submerged arc furnace is an important equipment in silicon ore processing, playing a key role in the silicon industry.

Manganese Silicon Alloy Furnace

Manganese Silicon Alloy Furnace

The manganese silicon alloy furnace is mainly used to smelt silicon-manganese alloy, which is an alloy containing silicon and manganese.

Submerged Arc Furnace

Submerged Arc Furnace

The design of the submerged arc furnace main mechanical device by Sanui is based on China's national conditions and draws on international advanced technologies such as Demark and Perlmutter.

Submerged Electric Arc Furnace

Submerged Electric Arc Furnace

Submerged electric arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc.

Titanium Slag Furnace

Titanium Slag Furnace

Titanium slag production adopts titanium slag electric furnace (circular furnace and rectangular furnace according to its shape) smelting process.

LF 20T Ladle Refining Furnace

LF 20T Ladle Refining Furnace

The LF 20 T ladle refining furnace has the functions of arc heating under normal pressure, argon blowing and stirring at the bottom of the ladle, and reducing slag making in the ladle.

LF Ladle Refining Furnace

LF Ladle Refining Furnace

LF ladle refining furnace is a bottom-blown argon ladle furnace with three-phase submerged arc heating under normal pressure. It is a device for refining molten steel in a ladle.

VD Vacuum Refining Furnace

VD Vacuum Refining Furnace

VD vacuum refining furnace is a commonly used refining process equipment, mainly used for deoxidation, impurity removal and other operations of molten steel, so as to obtain high purity, low impurity content of high quality steel.

VOD Vacuum Refining Furnace

VOD Vacuum Refining Furnace

VOD vacuum refining furnace has multiple functions such as vacuum degassing, oxygen blowing decarburization, vacuum charging, argon blowing stirring, non-vacuum temperature measurement sampling, wire feeding, etc.

Cast Steel Melting Induction Furnace

Cast Steel Melting Induction Furnace

The cast steel melting induction furnace has outstanding advantages in heat penetration or melting soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals.

Metal Silicon Smelting Furnace

Metal Silicon Smelting Furnace

Metal silicon smelting furnace is a metal silicon medium frequency melting furnace, which consists of furnace body, water and electricity introduction system, furnace tilting device, etc. It has fast melting temperature rise, easy to control furnace temperature and high production efficiency.

Medium Frequency Induction Furnace

Medium Frequency Induction Furnace

Medium frequency induction furnace mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, zinc, etc. The customized range of induction furnaces sold by Sanrui ranges from 0.1 tons to 10 tons.

Medium Frequency Furnace

Medium Frequency Furnace

Medium frequency induction furnaces are mainly used for melting steel, alloy steel, special steel, stainless steel, and can also be used for melting and casting non-ferrous metals such as copper, aluminum, lead, and zinc.

Medium Frequency Aluminum Melting Furnace

Medium Frequency Aluminum Melting Furnace

Medium frequency aluminum melting furnace is used for melting and heating aluminum, scrap aluminum, aluminum ingots, and aluminum alloys; The melting capacity ranges from 100KG to 3000KG.

Induction Furnace

Induction Furnace

An induction furnace is an electric furnace that uses the induction electrothermal effect of the material to heat or melt the material. The main components of an induction furnace are sensors, furnace body, power supply, capacitors and control system.

3 Tons Medium Frequency Coreless Induction Furnace

3 Tons Medium Frequency Coreless Induction Furnace

​The 3-ton medium frequency coreless induction furnace adopts a 6-phase 12-pulse double rectifier control system. A 2000KVA special rectifier transformer is used for the 2000KW medium frequency power supply.

Conductive Cross Arm

Conductive Cross Arm

The conductive arm of an electric arc furnace (EAF) is primarily composed of the front electrode conductive arm holder, a water-cooled clamping ring, the arm body, and the rear conductive copper plate.

EAF Charging Basket

EAF Charging Basket

The scrap charging basket of the electric arc furnace is mainly used for loading and conveying raw materials such as scrap steel into the electric arc furnace for smelting.

EAF Electrode Holder

EAF Electrode Holder

There are many insulation links between the EAF electrode holder and the conductive cross arm body, which greatly simplifies the cconductive cross arm structure and is a new type of electrode arm on the ultra-high power arc furnace.

EAF Water Cooled Roof

EAF Water Cooled Roof

Generally, the furnace cover of the electric arc furnace adopts the tubular water-cooled closed tube furnace cover structure.

Electrode Lifting Device

Electrode Lifting Device

The electrode lifting mechanism of electric arc furnace is composed of conductive cross arm and electrode column device.

Forged Copper Tile

Forged Copper Tile

Forged copper tile is one of the main accessories in submerged arc furnace (silicon metal furnace, calcium carbide furnace and iron alloy furnace). It generates heat energy due to passing through large current at high temperature, and is easy to be damaged due to poor working environment.

Furnace Cover Lifting and Rotating Device

Furnace Cover Lifting and Rotating Device

The furnace cover lifting and rotating device consists of a furnace cover lifting mechanism, a rotating mechanism and a rotating frame.

Submerged Arc Furnace Pressure Ring

Submerged Arc Furnace Pressure Ring

Submerged arc furnace pressure ring is used to monitor the change of air pressure in the furnace in real time, and adjust the air pressure automatically or manually according to the preset parameters to ensure the stability of air pressure in the furnace

Submerged Arc Furnace Water-cooled Roof

Submerged Arc Furnace Water-cooled Roof

Submerged arc furnace water-cooled Roof is an important part of submerged arc furnace (also known as electric arc furnace, calcium carbide furnace or mining furnace), which is mainly used to close the top of furnace body and bear the high temperature and pressure in the furnace.

Short Network

Short Network

Short network bus systems), also known as high current line, refers to the general term of the carrier fluid from the secondary outlet terminal of the transformer to the electrode (including the electrode).

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Tel: +86 159 2955 5868

WhatsApp: +86 159 2955 5868

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Room 422, 4th Floor, Building D, No. 5, Phase I, Fengdong Free Trade Industrial Park, Xixian New District, Shaanxi Province

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