23-Dec-2025

Case Study: Dongqi Crane’s 20/3-Ton Double-Girder Crane Drives Efficiency for Argentine Factory

A year of reliable performance in heavy-duty industrial lifting.

1. Executive Summary: A Trusted Partnership Across Continents

In 2024, Dongqi Crane delivered a customized QDX-type double-girder overhead bridge crane to a manufacturing plant in Argentina. Designed for precision and durability in demanding industrial operations, the crane has now completed one full year of seamless, zero-downtime operation.

The client recently shared detailed installation photographs and provided outstanding feedback, confirming that the crane’s performance has not only met but exceeded expectations in reliability, safety, and productivity enhancement. This project underscores Dongqi Crane’s capability to deliver world-class lifting solutions tailored to specific international client needs.

Client: A Major Manufacturing Plant in Argentina
Project: Supply, Installation, and Commissioning of a Custom Double-Girder Bridge Crane
Key Challenge: Requiring a robust, precise, and reliable lifting solution for critical assembly and handling tasks within a constrained workshop span.
Dongqi Solution: A custom-engineered QDX 20/3-Ton Double-Girder Overhead Crane.
Outcome: One year of flawless operation, achieving improved workshop workflow, enhanced safety, and verified total cost-effectiveness.

2. Client Challenge & Precise Requirements

The Argentine client operates a large-scale production facility where efficient and safe material handling is critical to the production line. They faced the challenge of moving heavy components and finished assemblies with utmost precision and reliability. Their specific requirements were exacting:

Lifting Capacity: Needed both primary heavy lifting (20-ton main hook) and auxiliary handling flexibility (3-ton auxiliary hook) for versatile operations.
Spatial Constraints: The workshop had a specific bay size, necessitating a crane with a precise span of 17.18 meters to optimize floor coverage without structural modifications.
Lifting Height: Required a 6-meter hook lifting height to handle tall assemblies and maximize vertical space utilization.
Power Supply: The industrial site operates on a standard 380V, 50Hz, 3-phase power system.
Core Need: Beyond specifications, the client prioritized long-term reliability, operational safety, and minimal maintenance to avoid costly production interruptions.

3. Dongqi Crane’s Tailored Solution: The QDX Double-Girder Crane

Dongqi Crane engineers proposed the proven QDX double-girder overhead crane series, custom-configured to the client’s exact parameters. This solution was selected for its superior structural integrity, smooth operation, and advanced features ideal for intensive workshop duty.

Model: QDX Double-Girder Overhead Traveling Crane
Customized Key Parameters:
- Capacity: Main Hook 20 Tons / Auxiliary Hook 3 Tons
- Span: Precisely 17.18 Meters
- Lifting Height: 6 Meters
- Power Supply: 380V, 50Hz, 3P (Fully Compatible)
Design & Engineering Highlights:
- Robust Double-Girder Structure: Provides exceptional stability and strength for heavy loads, minimizing deflection and ensuring smooth travel along the entire span.
- Optimized End Truck Design: Ensures smooth and low-vibration movement along the runway, reducing wear on rails and wheels.
- Advanced Control System: Features variable frequency drive (VFD) control for both hoisting and traveling motions. This allows for precise load positioning, soft start/stop, and significantly reduced load swing, greatly enhancing operational safety and precision.
- High-Quality Components: Utilization of international-standard motors, brakes, and gearboxes guarantees durability and consistent performance.
- Safety as Standard: Equipped with overload limiters, emergency stop buttons, limit switches for all travel axes, and other safety devices compliant with international norms.

Installation details of QDX double girder bridge crane at the factory in Argentina

4. Project Execution: Professional Installation & Commissioning

The successful implementation was a result of meticulous planning and professional execution.

Pre-Installation Planning: Dongqi’s project team provided detailed layout drawings and installation manuals. All components were pre-inspected, labeled, and packed systematically for efficient shipment to Argentina.
On-Site Installation (As Documented by Client Photos): The client’s shared photographs clearly depict the professional installation process: the careful assembly of the main girders, precise alignment of the end trucks on the runway rails, and secure installation of the crane’s electrical systems.
Testing & Commissioning: Upon complete assembly, our technical guidance (provided remotely and via detailed documentation) ensured thorough testing was performed. This included no-load tests, rated load tests (20 tons), and overload tests (110% dynamic load) to validate the structural integrity and performance of all safety and control systems.
Training: Comprehensive operational and basic maintenance training was provided to the client’s personnel, ensuring safe and efficient crane use from day one.

5. Results & Client Feedback: A Proven Success Story

After 12 months of continuous operation in a demanding industrial environment, the client reports complete satisfaction. The QDX crane has become an indispensable asset to their daily production.

Enhanced Productivity: The dual-hook capability and precise control have streamlined material handling processes, reducing cycle times for assembly tasks.
Proven Reliability & Uptime: The crane has operated flawlessly without any major maintenance issues, confirming the quality of its construction and components. This reliability directly contributes to uninterrupted production.
Outstanding Safety Record: The smooth VFD control and reliable safety devices have contributed to a safer working environment, with operators reporting high confidence during lifting operations.
Client Testimonial (Summary): The client’s positive feedback highlighted the professionalism of the entire process—from initial communication and engineering design to the clarity of installation guides. They specifically praised the crane’s smooth operation, precise control, and robust build quality, stating it performs perfectly for their intense application. The shared installation photos stand as testament to the smooth on-site process.

Is your facility facing similar material handling challenges? Whether you require a standard or a custom-engineered crane solution, Dongqi Crane has the expertise to deliver reliability, safety, and value.

Contact Dongqi Crane today to discuss your project requirements and request a free consultation or a customized quotation for your specific needs. Let us help you build a more efficient and productive workspace.