Industrial YZ180t Foundry Overhead Crane for Efficient Molten Metal Handling

Customer Background

Lianyuan Iron & Steel Co., Ltd. (LY Steel), a core enterprise under Hunan Steel Group—one of the world’s Fortune Global 500 companies—is a major high-end steel production base in Central and Southern China.

With an annual capacity exceeding 12 million tons, LY Steel is the world’s largest production base for medium and thin-gauge heat-treated plates and China’s leading supplier of silicon-steel substrates. Its products are widely used in national key projects such as the Hong Kong–Zhuhai–Macao Bridge and Tesla manufacturing facilities.

To modernize its molten-metal handling process and enhance operational safety, LY Steel introduced its YZ180t Foundry Overhead Crane, achieving a breakthrough in intelligent and heavy-duty lifting within high-temperature metallurgy environments.

Project Overview

To improve the efficiency of molten-metal transportation in the steelmaking workshop, Lianyuan Steel deployed the YZ180t Foundry Overhead Crane.

Key specifications include:

• Four-girder, four-rail double-trolley structure
• Lifting capacity: 180 tons (main ladle), auxiliary lifting for casting operations
• Span: 28 m
• Lifting height: 22 m (main trolley), 24 m (auxiliary trolley)
• Hydraulic synchronous lifting system: 5 lifting points, synchronization accuracy ≤ 0.1 mm
• Dual operation modes: wireless remote control + cabin
• Compliance: GB/T 3811 crane design standard, ISO 12482 safety certification
• Environment suitability: high-temperature, heavy-dust steelmaking operations

Core Application Scenarios

Molten Iron Ladle Transfer

• Task: Lifting 160-ton molten-iron ladles (Ø3.2 m, height 4.2 m)
• Performance: Hydraulic synchronous lifting + laser alignment
• Reduces lifting time from 2 hours to 45 minutes
• Vertical deviation controlled within 1/1000

Continuous Casting of Steel Billets

• Task: Continuous lifting of 90-ton billets (12 m × 1.5 m)
• Performance: Four-girder, four-rail structure minimizes deflection
• Stable, vibration-free casting
• Scrap rate reduced by 30%

Multi-Crane Synchronized Operation

• Task: Coordinated handling of 2 casting billets (80 tons each)
• Performance: Real-time synchronization of speed and position
• Operation efficiency improved by 40%
• Energy consumption reduced by 25%

Technical Innovations

Hydraulic Synchronous Lifting System

• Proportional valve + displacement sensors for millimeter-level control
• Emergency manual pump for safe lowering during power failure

Intelligent Safety Monitoring

• Real-time monitoring of 15 parameters including girder stress & column settlement
• 3D laser anti-collision system (70 m range; ±8 cm accuracy)

High-Temperature Adaptation

• Q460E high-strength steel girder with double-layer thermal insulation
• Wind-resistance rating: Grade 13
• IP67-rated electrical system for harsh metallurgical environments

User Feedback & Benefits

Efficiency Improvement

• Daily steelmaking output increased from 1,200 tons to 1,600 tons
• Production rhythm accelerated by 33%

Cost Optimization

• Hydraulic system reduces energy consumption by 35%
• Annual power cost savings of approximately 1.8 million RMB

Safety Performance

• Zero safety incidents over 5 years
• Certified to ISO 45001 Occupational Health & Safety Ma

シンディ

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Eメール： cindywang@hndfcrane.com

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