Guindaste pórtico eletromagnético para maior eficiência no manuseio de tarugos

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 guindaste de pórtico, 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.

Visão geral do equipamento

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

Principais cenários de aplicação

Billet Transfer

• Task: Handling hot billets (45 tons each, 15 m long)
• Desempenho:
• Sistema automático de fixação magnética (resposta ≤ 3 s)
• Sistema inteligente anticolisão para pontes e bondes
• Transfer efficiency increased by 60%
• Intervenção manual reduzida em 80%

Plate Yard Management

• Task: Multi-layer plate stacking (12 tons per plate)
• Desempenho:
• Precisão de posicionamento a laser ±10 mm
• A utilização do pátio foi melhorada pelo 40%.

Assistência de manutenção

• Task: Lifting mill rolls and bearing housings (up to 20 tons each)
• Desempenho:
• Controle de velocidade de frequência variável (0,5–10 m/min)
• Sistema hidráulico anti-oscilação
• Segurança na manutenção aprimorada pelo 75%

Principais inovações técnicas

Sistema de acionamento duplo eletromagnético-mecânico

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

Monitoramento Inteligente e Alerta Antecipado

• Monitoramento integrado de estresse, temperatura e anticolisão
• Real-time transmission of key parameters to the central dispatch system

Projeto de segurança estrutural aprimorado

• 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

Whatsapp: +86-19137386654

Email: cindywang@hndfcrane.com

Eu sou Cindy, com 10 anos de experiência de trabalho na indústria de guindastes e acumulei uma riqueza de conhecimento profissional. Eu escolhi os guindastes satisfatórios para mais de 500 clientes. Se você tiver alguma necessidade ou dúvida sobre guindastes, sinta-se à vontade para entrar em contato comigo, usarei minha expertise e experiência prática para ajudá-lo a resolver o problema!