Large cross‑section water-cooled cables are used for the connection between the busbar system and the EAF arm. The water-cooled cable transmits large currents while meeting the movement requirements of the cross arm, such as lifting and rotating. These liquid-cooled cables are mainly applied in steelmaking electric arc furnaces, ladle refining furnaces, and induction furnaces. After being covered with high temperature resistant materials, the water-cooled cable is also suitable for submerged arc furnaces.
CHNZTECH provides water-cooled cable solutions for furnaces with cable sections up to 7500 mm² and swiveling terminals. The LF cable is available up to 6000 mm², suitable for furnaces with a rated capacity of 350 t. With extensive experience in the design, engineering, and manufacturing of water-cooled cables, CHNZTECH ensures that its products offer a longer service life, better compatibility with copper busbars, and higher overall quality. This is achieved through the use of international‑standard accessories, including cable ties and inner protective hoses, making each water-cooled cable reliable for demanding furnace applications.
Water-cooled welding cable heads are non-contact, solderless, and welded, made from a whole copper rod processed on CNC lathes and milling machines, which are beautiful and durable; The connection between electrodes and wires adopts cold extrusion, which does not damage the wires and has low resistance;
The outer sleeve is made of high-quality rubber hose, which has a water pressure resistance of>0.8MPA and a breakdown voltage of over 3000V. There is also a flame-retardant outer sleeve for users to choose from in special occasions;
The fastening between the electrode and the outer sleeve should be made of red copper clamps for cables below 500mm2, and 1Cr18Ni9Ti material clamps should be used for other cables, which are non magnetic and rust free; Squeezing and fastening with large hydraulic equipment, beautiful, durable, and with good sealing effect;
Soft wire is processed using fine enameled wire on a specialized winding machine. Soft, small bending radius, and large effective cross-section;
Using enameled wire as a water-cooled cable for induction furnace has high efficiency in energy transmission. Because each enamelled wire is insulated, conducting medium frequency and high frequency current, and has no surface Skin effect, compared with other water-cooled power cables of the same section, when passing the same current, the heat generation is less;
Using enameled wire as the conductor for these wholesale furnace parts can improve the service life of the liquid cooled cables. Due to long-term immersion of the wires of water-cooled welding cables in water, the working environment is extremely harsh. Previously, we used copper bare wires to make water-cooled cables. After using the water-cooled power cables for a period of time, when we opened the cable jacket, we would see a layer of green copper rust on the surface of the wires. Later on, we switched to using enameled wire as a water-cooled cable for induction furnace because it has a protective layer of paint film, which can provide corrosion protection. Users have reported that water-cooled power cables made of enameled wire have a service life of 1.5 to 2 times that of copper bare wires.
Model | Section mm2 | GMR | Shape & Erection Dimension | MIN (R) | Carry Current | ||||||||||||
a | b | m | n1 | s | n2×d | k | t | R | C | φD | φW | φV | |||||
WCCB1200 | 1200 | 20 | 69 | 125 | 42.5 | 2 | 20 | 6×14 | 40 | 40 | G1/2″ | 35 | 135 | 95 | 76 | 350 | 4500±20% |
WCCB1600 | 1600 | 25 | 85 | 175 | 50.0 | 2 | 40 | 6×14 | 50 | 65 | G3/4″ | 35 | 150 | 114 | 92 | 400 | 6000±20% |
WCCB2000 | 2000 | 29 | 85 | 175 | 50.0 | 2 | 30 | 6×16 | 50 | 55 | G3/4″ | 35 | 165 | 114 | 92 | 415 | 7500±20% |
WCCB2400 | 2400 | 34 | 98 | 200 | 60.0 | 2 | 40 | 6×16 | 60 | 70 | G1″ | 40 | 170 | 135 | 106 | 430 | 9000±20% |
WCCB2800 | 2800 | 35 | 97 | 210 | 50.0 | 3 | 30 | 8×16 | 60 | 55 | G1″ | 50 | 185 | 145 | 109 | 480 | 10500±20% |
WCCB3200 | 3200 | 44 | 120 | 210 | 50.0 | 3 | 30 | 8×16 | 65 | 55 | G1″ | 50 | 190 | 152 | 130 | 525 | 12000±20% |
WCCB3600 | 3600 | 50 | 120 | 210 | 50.0 | 3 | 30 | 8×16 | 65 | 55 | G1″ | 50 | 220 | 178 | 130 | 580 | 13500±20% |
WCCB4000 | 4000 | 56 | 136 | 300 | 63.5 | 3 | 50.5 | 8×18 | 76 | 83 | G1″ | 50 | 220 | 178 | 145 | 650 | 15000±20% |
WCCB4400 | 4400 | 61 | 146 | 300 | 63.5 | 3 | 50.5 | 8×18 | 76 | 83 | G1″ | 50 | 230 | 188 | 155 | 660 | 16500±20% |
WCCB4800 | 4800 | 65 | 146 | 300 | 63.5 | 3 | 50.5 | 8×18 | 76 | 83 | G1″ | 50 | 230 | 188 | 155 | 700 | 18000±20% |
WCCB5200 | 5200 | 65 | 154 | 300 | 63.5 | 3 | 50.5 | 8×18 | 76 | 83 | G1″ | 60 | 250 | 208 | 166 | 750 | 19500±20% |
WCCB6000 | 6000 | 70 | 178 | 300 | 63.5 | 3 | 55 | 8×22 | 85 | 87 | G1″ | 60 | 280 | 232 | 184 | 900 | 22500±20% |
High‑quality water-cooled cables for induction furnaces are manufactured from integral copper rods by turning and milling. The conductor surface of each water-cooled cable is treated with passivation or tin plating to improve corrosion resistance. The copper rope used in the water-cooled cable is made of tinned copper stranded wire or enameled wire, woven by a CNC winding machine, providing high flexibility and a small bending radius.
The outer protective casing of the water-cooled power cable adopts synthetic rubber hoses with reinforced sandwich layers, enabling it to withstand high internal pressure. The sleeve and electrode of the water-cooled cable are securely fastened by cold extrusion using copper clamps on professional equipment. This structure ensures excellent sealing performance, low water leakage, and reliable operation of the water-cooled cable under severe working conditions.
CHNZTECH provides high‑performance water-cooled cable solutions for furnaces, including EAF, LF, induction furnaces, and SAF. Each water-cooled cable is designed and manufactured with strict material control to ensure stable electrical and thermal performance. During production, water-cooled cable dimension control, water pressure testing, and bending radius control are rigorously conducted to guarantee safe operation.
Through comprehensive quality control measures, every water-cooled cable achieves improved reliability and extended service life. The consistent performance of CHNZTECH water-cooled cable products ensures safe operation and long‑term durability in demanding furnace applications.
1. Forged Terminal Head Only — We are the only manufacturer in China using 100% forged copper terminal heads, ensuring exceptional conductivity and mechanical strength.
2. High-Purity Copper Material — All cables are made from T2 or TU2 copper, with SGS, BV, or BVI certification available upon request.
3. Industry Record Holder — The only company in China that has designed and produced water-cooled cables for a 350-ton EAF, with a cross-section of 7500 mm² and a length of 14.5 m.
4. Optional Internal Protection Hose — For enhanced mechanical protection and service life, we provide an additional internal protective hose structure.
5. Full Quality Assurance — Each cable is pressure-tested and electrically tested before shipment to guarantee long-term reliability in harsh steelmaking environments.
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