22-Aug-2025

Elevate Your Heavy-Lifting Operations: The Dongqi DQ Series 50-Ton MG Model Double Girder Gantry Crane

Engineered for Robust Performance, Unmatched Reliability, and Maximum Productivity in Demanding Applications

Are you grappling with the challenges of moving massive, heavy loads across your yard, workshop, or production facility? Do inefficient material handling processes, rising labor costs, and concerns over operational safety hinder your project timelines and bottom line?

Dongqi Crane presents the definitive solution: the DQ Series 50-Ton MG Model Double Girder Rail Mounted Gantry Crane. This isn’t just equipment; it’s a robust, intelligent, and highly reliable backbone for your most demanding logistics operations. Designed with precision and built to last, this crane is the result of our decades of engineering expertise and commitment to empowering industries worldwide. Choosing Dongqi means investing in safety, efficiency, and enduring performance.

50 ton double girder gantry crane in steel plant

Why Choose The Dongqi 50-Ton Double Girder Gantry Crane?

1. Exceptional Lifting Capacity & Structural Integrity

At the heart of this crane is its formidable 50-ton lifting capacity, effortlessly handling heavy payloads like steel coils, prefabricated concrete sections, large machinery, and shipping containers. The core of its strength lies in the optimized double girder design, fabricated from high-grade Q355B steel (a superior Chinese low-alloy high-strength structural steel equivalent to S355). This construction ensures exceptional structural rigidity, minimal deflection under full load, and unparalleled longevity, even in the toughest working environments.

2. Uncompromising Safety and Operational Stability

Safety is the non-negotiable foundation of every Dongqi product. Our MG series cranes are designed and manufactured in full compliance with international standards, including GB/T (Chinese National Standard) and FEM (European Standards).

  • Advanced Safety Systems: Every crane comes standard with a comprehensive suite of protections, including an overload limiter, emergency stop buttons, end travel limit switches for both bridge and hoist travel, and anti-collision systems.
  • Superior Stability: The rigid double girder design and precision-engineered end trucks provide a stable platform, eliminating sway and ensuring smooth, controlled movement of valuable loads. This protects both your inventory and your personnel.
  • Premium Components: We utilize top-tier Chinese domestic brands for critical components like motors, gearboxes, and brakes. For clients requiring international certification or specific performance, we offer optional upgrades to globally recognized brands like Siemens, Schneider, or ABB.

3. Customizable Design for Perfect Fit & Function

We understand that no two worksites are identical. Unlike off-the-shelf solutions, the Dongqi DQ MG crane is highly customizable to your specific operational needs.

  • Span & Lifting Height: The crane’s span (typically customizable from 18m to 35m+) and lifting height are engineered to fit your exact bay dimensions and vertical requirements.
  • Work Duty Classification: We offer cranes rated from work class A5 to A7, ensuring the equipment is perfectly matched to your usage intensity (from frequent intermittent use to continuous severe service).
  • Intelligent Control Options: Choose from standard cabin control or floor pendant operation. We highly recommend our variable frequency drive (VFD/VSD) option for all motions, which enables smooth acceleration and deceleration, precise load positioning, and reduced mechanical stress.
  • Automation Ready: The crane can be equipped with wireless radio remote control and integrated into automated storage and retrieval systems (AS/RS) for future-proofing your operations.

4. Durability That Lowers Your Total Cost of Ownership

Investing in a Dongqi crane is a long-term decision for productivity. We build our cranes to endure, minimizing downtime and maintenance costs.

  • Superior Corrosion Protection: All structural components undergo rigorous surface treatment, including shot blasting to remove impurities, followed by a multi-layer epoxy primer and paint coating system, offering excellent resistance to weathering and corrosion.
  • Ease of Maintenance: A modular design philosophy ensures that key components are easily accessible for inspection, maintenance, or replacement, drastically reducing service time and keeping your operations running.

Technical Specifications: Dongqi DQ MG-50t Model

  • Model: Dongqi DQ MG-50t
  • Lifting Capacity: 50 Ton (Main Hoist) | Optional Auxiliary Hoist (e.g., 10T) available
  • Duty Class: A5 (Standard), customizable to A6 or A7
  • Span (S): Customized from 18 meters to 35+ meters
  • Lifting Height: Customized from 10 meters to 20+ meters
  • Lifting Speed: Full Load: ~1.5 – 2.0 m/min (adjustable with VFD option)
  • Bridge Travel Speed: ~20 – 30 m/min (adjustable with VFD option)
  • Trolley Travel Speed: ~10 – 20 m/min (adjustable with VFD option)
  • Rail Type: Recommended P50 / QU70 or higher
  • Power Supply: 3-Phase, 380V, 50Hz (Customizable to local standards)
  • Control Mode: Cabin Control / Floor Pendant Control / Optional: Wireless Remote Control
  • Main Steel Structure: High-Quality Q355B Steel (Equivalent to S355)

Ideal Applications Across Industries

The Dongqi 50-Ton Gantry Crane is a versatile workhorse proven in numerous sectors:

  • Logistics, Storage & Freight Yards: Container loading/unloading, stacking large timber, pipes, and heavy goods.
  • Heavy Equipment Manufacturing: Assembly lines for wind turbine components, shipbuilding, and large machinery.
  • Infrastructure & Construction: Handling bridge girders, concrete segments, and other large prefabricated elements.
  • Steel & Metal Processing: Moving and storing steel coils, plates, and slabs efficiently.
  • Power Generation Projects: Installation and maintenance of heavy components in hydroelectric, thermal, and nuclear power plants.

The Dongqi Crane Commitment: More Than Just a Product

When you partner with Dongqi, you gain a full-service support system dedicated to your success.

  • Pre-Sales Consultation & Engineering: Our technical experts work with you to design a crane solution that perfectly fits your layout, budget, and process flow.
  • Quality Manufacturing & Testing: Every crane is produced under a strict ISO 9001 quality management system and undergoes rigorous pre-delivery testing, including a full-load test, to guarantee performance and safety.
  • Global Installation & Commissioning: We provide comprehensive installation manuals, expert supervision, or a full turnkey installation service by our certified teams.
  • Training & Lifetime Support: We ensure your operators are fully trained. Our global after-sales network provides 24/7 technical support and lifelong access to genuine spare parts.

Ready to Transform Your Material Handling?

Stop letting heavy loads slow you down. Let the Dongqi DQ Series 50-Ton Gantry Crane be the engine of your productivity.

Contact our engineering team today for a free, no-obligation quotation and a customized design proposal tailored to your needs.

📧 Email: [sales010@cranesdq.com]
🌐 Website: [https://sg.craneyt.com/]
📞 Phone: [+86 18638815424]

Dongqi Crane: Lifting Your Business to New Heights.