Customized European-Style Gantry Crane Solution for Steel Plant

Project Background
In 2024, leveraging its extensive experience in heavy-duty lifting equipment manufacturing, Dongqi Crane successfully designed and manufactured a batch of European-style gantry cranes for a major steel plant in the Philippines. The delivery included 1 MGO-type 10-ton gantry crane and 6 MHO-type gantry cranes (3 units of 10-ton and 3 units of 5-ton capacity), all featuring European-style wire rope hoists to meet the client’s demanding requirements for efficient and precise heavy material handling.

Customer Requirements
The Philippine steel plant’s new workshop imposed strict specifications:

• Lifting capacity: 10-ton (main production line) and 5-ton (auxiliary lines)
• Uniform span requirement: 20 meters
• Lifting height: 9m (10-ton) and 7.5m (5-ton)
• Power supply: 440V/60Hz/3P (compliant with Philippine standards)
• Crane type: Space-saving European design
• Operating environment: High-temperature, high-humidity coastal conditions

Solution
Dongqi Crane provided customized European-style gantry crane solutions:

1. Equipment Configuration

• 1 MGO-type 10-ton double girder gantry crane (main production line)
• 6 MHO-type single girder gantry cranes (3×10-ton + 3×5-ton)
• Complete series equipped with European wire rope electric hoists

1. Key Technical Parameters

• Lifting mechanism: Frequency control with adjustable speed (10-ton: 0-8m/min; 5-ton: 0-10m/min)
• Travel mechanism: Triple-duty drives with IP55 protection
• Electrical system: 440V/60Hz/3P compliant with local regulations
• Safety features: Overload protection, limit switches, emergency brakes, etc.

1. Specialized Design

• Tropical climate adaptation: Enhanced corrosion protection coatings
• Typhoon-resistant structure: Reinforced steel construction
• Humidity protection: Moisture-proof electrical components

Project Highlights

1. Fast Delivery: All 7 units delivered within 10 weeks despite logistical challenges
2. Local Compliance: Fully compliant with Philippine safety regulations
3. Durability: Specially designed for Southeast Asian climate conditions
4. After-sales Support: Local technical team available for maintenance

Customer Feedback
“Dongqi Crane’s gantry cranes have demonstrated exceptional performance in our challenging tropical environment. The anti-corrosion features and robust construction have proven particularly valuable for our coastal location.”

Conventional Applications and Operational Prohibitions of MGO & MHO Gantry Cranes in Steel Plants

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I. Conventional Applications

1. MGO Double-Girder Gantry Crane (Heavy-Duty Applications)

• Applications:
• Billet/Slab Handling: Suitable for lifting, stacking, and loading/unloading heavy billets (5-50 tons).
• Continuous Casting Area: Transfers cast billets in coordination with casting machines (requires high-temperature-resistant design with optional heat shields).
• Rolling Mill Support: Handles large steel coils before/after rolling, requiring precise positioning (variable frequency control).
• Scrap Processing: Loads/unloads scrap metal in scrap yards (requires electromagnetic or grab attachments).
• Advantages:
• Robust double-girder structure for frequent heavy-load operations (Duty Class A5-A7).
• Large span (up to 35m) for wide production lines.

2. MHO Single-Girder Gantry Crane (Light & Auxiliary Applications)

• Applications:
• Spare Parts Warehouse: Lifts rolls, molds, and other equipment parts (5-20 tons).
• Maintenance Area: Assists in equipment repairs (e.g., motors, gearboxes).
• Finished Product Transport: Loads/unloads small coils, pipes, or profiles.
• Auxiliary Production Lines: Handles refractory materials or other auxiliary supplies.
• Advantages:
• Compact design for space-constrained workshops (optimized headroom).
• Energy-efficient for intermittent operations (Duty Class A3-A5).

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II. Operational Prohibitions & Precautions

1. General Prohibitions (MGO & MHO)

• Overloading:
• Strictly prohibited (hidden risks in steel plants: scrap metal impurities increasing weight).
• Solution: Install real-time weighing systems with load-locking.
• High-Temperature Environments:
• Avoid prolonged exposure to >150°C areas (e.g., near casting machines). High-temperature options (heat shields, heat-resistant cables) required.
• Corrosive Media:
• In acid-washing zones, use stainless steel wire ropes + anti-corrosion coatings (standard carbon steel is prone to rust).
• Collision Risks:
• No diagonal pulling to prevent swinging billets from hitting equipment (common accident trigger in dense work areas).

2. MGO Double-Girder Specific Prohibitions

• Large-Span Deformation Control:
• For spans >25m, monitor girder deflection (long-term heavy loads may cause plastic deformation).
• Recommendation: Regular laser calibration + camber compensation devices.
• Heavy-Load Impact Restrictions:
• When handling ladles (custom models required), avoid sudden starts/stops to prevent molten metal splashing.

3. MHO Single-Girder Specific Prohibitions

• Eccentric Load Risks:
• Single-girder design has lower torsional resistance—avoid lifting long steel profiles (>12m H-beams) on one side.
• Solution: Add auxiliary girders or switch to double-girder models.
• Frequent Start-Stop Limits:
• For Duty Class A3 or below, max. 120 start-stop cycles/hour (exceeding may cause motor overheating).

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III. Steel Plant Selection Guide

Working Condition	Recommended Model	Key Configurations
Billet handling (casting)	MGO-20t	High-temperature kit + dual brakes
Coil handling (rolling)	MGO-32t	Anti-sway VFD + auto-positioning
Scrap yard operations	MHO-10t	Electromagnetic interface + dustproofing
Maintenance area lifting	MHO-5t	Low-headroom design + manual/remote control

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IV. Maintenance Essentials

• Daily Checks: Wire rope wear (steel plant dust accelerates wear), rail clamp bolt tightness.
• Monthly Maintenance: Wheel bearing lubrication (high-temperature grease for hot zones), electrical cabinet dust removal.
• Annual Overhaul: Girder weld inspection, rail leveling correction.

Warning: Steel plants’ dusty, high-temperature, and humid environments reduce equipment lifespan—shorten maintenance intervals by 30% vs. standard cycles.

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Dongqi Crane Technical Tip: For Southeast Asian steel plants (high salt spray, typhoons), opt for enhanced anti-corrosion (C5-M coating) and wind-resistant anchoring. Contact local engineers for tailored solutions.

Why Choose Dongqi Crane?

• 15+ years experience in Southeast Asian markets
• Custom solutions for tropical environments
• Compliance with PNS and other local standards
• Established local service network in the Philippines

Conclusion
This project demonstrates Dongqi Crane’s capability to deliver robust lifting solutions for the Philippine industrial sector. We continue to provide reliable, climate-adapted material handling equipment throughout Southeast Asia.

Dongqi Crane – Your Reliable Lifting Partner in the Philippines
Contact our Manila office for more industrial crane solutions!