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Client Background: Jiangsu Nanjing Iron & Steel (Nangang)

Jiangsu Nanjing Iron & Steel Co., Ltd. (Nangang) is a major steel producer in East China, known for its advanced rolling mills, high-quality plate and section steel production, and strong commitment to intelligent and green manufacturing. As part of its smart plant upgrade strategy, Nangang sought to optimize billet and plate handling efficiency in its rolling workshop. To support this initiative, the company adopted DAFANG’s intelligent Electromagnetic portal vinç, enabling a significant leap in automation, safety, and operational performance.

Electromagnetic Gantry Crane Applied in Rolling Workshop Material Handling

By deploying DAFANG’s electromagnetic gantry crane, Jiangsu Nangang achieved intelligent upgrading of the material handling process in its rolling workshop. With electromagnetic adsorption technology, laser positioning, and an intelligent monitoring platform as its core features, the equipment greatly enhanced efficiency and operational safety, delivering an “efficient, safe, and green” logistics solution for the metallurgical industry. This project demonstrates the development of gantry cranes toward higher specialization and smarter operation, helping the client achieve cost reduction and productivity improvement.

Ekipman Genel Bakışı

To improve billet handling efficiency in the rolling workshop, Nangang introduced the Electromagnetic Gantry Crane featuring:

• Double-girder design
• Rated lifting capacity: 50 tons
• Span: 32 m
• Lifting height: 24 m
• Electromagnetic lifting disc: Ø 3 m, magnetic force 35 tons
• Operation modes: ground remote control + cabin control
• Full compliance with GB/T 3811 crane design standard
• Certified to ISO 12482
• Specially engineered for high-temperature and heavy-dust metallurgical environments

Çekirdek Uygulama Senaryoları

Billet Transfer

• Task: Handling hot billets (45 tons each, 15 m long)
• Performans:
• Otomatik manyetik tutma sistemi (tepki ≤ 3 sn)
• Köprü ve tramvay için akıllı çarpışma önleme
• Transfer efficiency increased by 60%
• 80% ile manuel müdahale azaltıldı

Plate Yard Management

• Task: Multi-layer plate stacking (12 tons per plate)
• Performans:
• Lazer konumlandırma doğruluğu ±10 mm
• Bahçe kullanımı 40% oranında iyileştirildi

Bakım Yardımı

• Task: Lifting mill rolls and bearing housings (up to 20 tons each)
• Performans:
• Değişken frekanslı hız kontrolü (0,5–10 m/dak)
• Hidrolik salınım önleme sistemi
• 75% ile bakım güvenliği artırıldı

Temel Teknik Yenilikler

Elektromanyetik-Mekanik Çift Tahrik Sistemi

• Redundant electromagnetic power with UPS ensures 15 minutes of magnetic holding during power loss
• Optional mechanical grab mode for mixed material handling

Akıllı İzleme ve Erken Uyarı

• Entegre stres, sıcaklık ve çarpışma önleme izleme
• Real-time transmission of key parameters to the central dispatch system

Gelişmiş Yapısal Güvenlik Tasarımı

• Main girders welded from Q345D high-strength steel, with local reinforcement using Q460E
• Equipped with wind-proof anchoring system (resistance up to Level 12 winds)

User Feedback & Practical Benefits

Efficiency Improvement

• Billet turnover in the rolling workshop increased from 1,800 t/day → 2,500 t/day, accelerating production rhythm by 35%.

Cost Optimization

• Electromagnetic lifting consumes 40% less energy compared with mechanical grabs → Annual electricity savings approx. 800,000 RMB

Safety Performance

• Zero safety incidents in five years of operation
• Certified to ISO 45001 occupational health & safety standard

Cindy

Naber: +86-19137386654

E-posta: cindywang@hndfcrane.com

Ben Cindy, vinç sektöründe 10 yıllık çalışma deneyimim ve çok sayıda profesyonel bilgi birikimim var. 500'den fazla müşteri için tatmin edici vinçleri seçtim. Vinçlerle ilgili herhangi bir ihtiyacınız veya sorunuz varsa lütfen benimle iletişime geçmekten çekinmeyin, uzmanlığımı ve pratik deneyimimi kullanarak sorunu çözmenize yardımcı olacağım!