Project Overview
Our factory successfully delivered a 100-ton QD-type Double Girder Bridge Crane to a leading steel manufacturing group in Thailand for its newly built heavy-duty workshop in the Rayong Industrial Park. As the core handling equipment for the production line, this crane is responsible for the precise positioning and efficient transfer of large steel billets, formed components, and molds, serving as a critical component in the customer’s capacity expansion and automation upgrade.
Customer Requirements
1.Ultra-heavy Load & High-Intensity Operation: Required to meet a 100-ton rated lifting capacity and adapt to daily, near-continuous (20 hours) high-frequency, heavy-duty operational cycles within the workshop.
2.Precise and Smooth Control: Required smooth operation and precise positioning (millimeter-level) when handling large, precision components, necessitating a full variable frequency control system to eliminate load sway.
3.Adaptability to Extreme Environments: The workshop features high temperatures and dust. The crane structure, motors, and electrical systems required excellent heat resistance and protective performance.
4.Safety and Reliability: Mandatory compliance with local Thai and international safety standards, equipped with multiple safety protection devices to ensure absolute long-term operational reliability and personnel safety.
5.Smart Maintenance Support: Desire for integrated remote diagnostic interfaces to facilitate predictive maintenance and reduce unplanned downtime.
Our Solutions
1.Customized Heavy-Duty Design:
•Utilized an optimized box-type double girder structure with high-strength steel, ensuring load capacity while controlling deadweight. The main hoist mechanism featured a dual braking system and was equipped with high-quality alloy steel wire ropes.
•The electrical system achieved an IP54 protection rating, with key motors using Class H insulation to effectively resist high temperatures and dust.
2.Advanced Drive and Control:
•Equipped all three major mechanisms (bridge travel, trolley travel, and hoisting) with variable frequency drives from internationally renowned brands, enabling stepless speed control and extremely smooth starting and stopping.
•Added an anti-sway positioning system that actively suppresses hook swing through algorithmic control, significantly improving handling efficiency and safety.
3.Comprehensive Safety Assurance:
•Equipped with an overload limiter, dual limit switches, emergency stop devices, an anti-collision system (optional), and a safety-conductor bar power supply system.
•All safety devices passed third-party testing and certification.
4.Digital Service Value-Add:
•Provided an electrical control system with a data acquisition module, supporting remote connection for condition monitoring and fault early warning.
•Dispatched senior engineers for on-site installation guidance and commissioning, and provided comprehensive operator and maintenance training.
Customer Feedback
“This 100-ton crane is the ‘backbone’ of our new production line. The Chinese manufacturer provided equipment comparable to European quality, with outstanding stability and precision that fully meets our stringent requirements for heavy-duty, precision handling. The intelligent features seamlessly integrate with our planned digital factory. This has been a highly successful and pleasant collaboration.”
Project Outcomes
Key Enabler for Capacity: Since commissioning, the crane has operated stably, becoming an indispensable tool for handling ultra-heavy core materials, helping to increase the new workshop’s production capacity by up to 30%.
Win-Win for Safety and Efficiency: Precise control reduced average assembly time for large components by 25% and achieved zero safety incidents during major equipment lifts.
Foundation for Long-term Cooperation: Based on the outstanding performance in this project, the customer has listed our factory as a core equipment supplier and is discussing the feasibility of subsequent purchases of casting cranes.
