7-Jan-2026

Case Study: Seamless Installation of a 150-Ton Double-Girder Bridge Crane in Paraguay

Dongqi Crane recently designed, manufactured, and successfully installed a heavy-duty QDX-type double-girder bridge crane for a manufacturing plant in Paraguay. This project underscores our commitment to delivering robust lifting solutions and providing comprehensive international technical support.

Project Overview

The centerpiece of this project was a high-capacity QDX 150/20 Ton Double-Girder Bridge Crane with the following key specifications:

  • Capacity: 150 Ton
  • Span: 23 Meters
  • Lifting Height: 15 Meters
  • Power Supply: 380V, 50Hz, 3-Phase

This crane was engineered to handle demanding lifting operations within the client’s factory, requiring exceptional reliability and precision.

The Installation Journey: A 45-Day Collaborative Effort

The successful commissioning of this crane was the result of meticulous planning and hands-on collaboration between our dedicated engineers and the client’s team on-site in Paraguay.

1. Expert Dispatch & Site Preparation
To ensure a flawless installation, Dongqi Crane deployed experienced engineers to Paraguay. Their first task involved a thorough site assessment, verifying foundation measurements and runway rail alignment to prepare for the major components’ arrival.

2. Main Girder Assembly & Placement
The crane’s main girders, the primary load-bearing structures, were carefully unloaded and assembled on-site. Using synchronized lifting equipment, our team and the client safely hoisted and positioned the twin girders onto the runway rails.

Workers are installing tracks on the steel structure
Workers are installing tracks on the steel structure
The winch trolley is being assembled
The winch trolley is being assembled
Preparing to hoist the main beam
Connecting the main beam
Connecting the main beam
Main beam walkway
The main beam is being hoisted

3. Trolley and Hoist Installation
Next, the heavy-duty trolley and wire rope hoist unit, capable of lifting 150 tons, was installed onto the girders. This phase required precise alignment to ensure smooth traversal along the crane bridge and optimal performance of the lifting mechanisms.

Preparing to hoist the main beam
One main beam is on the track
The main beam is being hoisted
One main beam is on the track
Hoisting the winch trolley
150-ton QDX double girder bridge crane
150-ton QDX double girder bridge crane

4. Electrical System Integration & Commissioning
Following mechanical installation, our engineers focused on the electrical systems. This included connecting the crane’s power supply, installing the control panels and pendant station, and integrating all safety and control circuits. Rigorous testing of all functions—travel, hoisting, and limit switches—was conducted.

5. Final Testing & Client Handover
After installation, the crane underwent a comprehensive testing regimen. This included no-load test runs and critical load tests to verify performance against all design specifications. The client’s operators were also trained on safe and efficient crane operation.

Project Completion

The entire installation process was completed efficiently within 45 days. The client expressed great satisfaction with the crane’s build quality, the professionalism of the installation team, and the smooth, cooperative process from shipment to commissioning.

Why Choose Dongqi Crane?

This project in Paraguay exemplifies Dongqi Crane’s core strengths:

  • Custom-Engineered Solutions: We provide cranes built to exact client specifications and site conditions.
  • Global Technical Support: We offer expert on-site installation and commissioning support worldwide.
  • Reliability & Safety: Our cranes are manufactured to international standards, ensuring durability and safe operation.
  • Turnkey Service: We manage the process from design to delivery and installation.

Dongqi Crane is dedicated to empowering industries globally with efficient and reliable overhead crane solutions. Contact us to discuss how we can support your next project.