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Electrode Conductive Cross Arm
The Electrode Conductive Cross Arm is one of the core components of the electrode lifting system in Electric Arc Furnaces (EAF). One end of the cross arm is connected to the electrode column, while the other end clamps the electrode, enabling stable electrode support and precise vertical movement during furnace operation.
The lightweight structural design reduces the driving power required for electrode lifting and positioning, improving operational response speed and overall energy efficiency.
The hollow box-section structure combined with double-layer copper–steel composite plates effectively reduces the skin effect, lowers electrical impedance, and improves electrothermal efficiency during steelmaking operation.
Integrated internal water-cooling channels provide excellent mechanical strength and thermal stability, ensuring accurate electrode positioning, stable arc performance, and minimal vibration under high-temperature operating conditions.
Compared with traditional steel-tube conductive cross arms, the copper–steel composite structure offers lower weight, lower inertia, improved conductivity, and longer service life, making it especially suitable for large-capacity EAF applications requiring frequent and precise electrode movements.
Material & Structural Comparison
Type | Material Composition | Structure Type | Main Features | Impedance | Weight | Service Life |
Traditional Type | Carbon steel tube | Hollow round tube | Simple structure, heavy, high inertia | High | Heavy | Short |
Aluminum Alloy Type | Aluminum alloy | Hollow plate or tube | Lightweight, but poor stiffness and thermal resistance | Medium | Light | Medium |
Copper Type | Pure copper | Solid or laminated | Excellent conductivity, but very heavy and costly | Low | Very Heavy | Long |
Copper–Steel Composite Type (Our Design) | 20+10 mm copper–steel composite plate (outer copper, inner steel) | Hollow box-section with water-cooled channel | High stiffness, very low impedance, excellent thermal management and long lifespan | Very Low | Light | Long |
Core Advantages of CHNZBTECH Conductive Cross Arms
1. China's only manufacturer using 20+10 mm copper–steel composite plates for conductive cross arms
2. China's leading producer and designer of conductive cross arms for 350-ton EAFs
3. Single cross arm weight up to 18,000 kg for superior mechanical strength and current-carrying capacity
4. Low-impedance design improves electrical efficiency and reduces power loss
5. Advanced water-cooling structure ensures excellent heat resistance and long-term operational stability
6. Optimized composite structure combines the conductivity of copper with the mechanical strength of steel
7. Customized design available according to furnace capacity and operating conditions
