As a key maritime hub in Southeast Asia, Thailand relies heavily on the Bangkok Port as its primary container gateway, handling over 65% of the country’s import and export cargo. Within the port, 12 overhead cranes operate under continuous 24-hour heavy-duty conditions, primarily lifting containers, steel materials, and other bulk cargo. Among them, four 40-ton overhead cranes that had been in service for more than eight years developed serious wear, cracks, and corrosion in their core load-bearing component—the hook assembly. Excessive hook opening, bearing seizure, and structural degradation reduced lifting efficiency by 35% and posed significant safety risks. The port authority mandated rectification within a strict deadline.
After multiple rounds of qualification reviews and sample testing, the customer ultimately selected HSCRANE’s customized high-strength hook assemblies to upgrade operational safety and ensure uninterrupted port operations.
Project Core Challenges
Located in a tropical monsoon climate zone, Bangkok Port experiences high temperatures, high humidity, and strong salt-laden air due to its coastal proximity. Conventional hook assemblies are highly susceptible to corrosion in such environments, significantly shortening service life.
At the same time, the cranes frequently handle heavy containers and steel materials under a rated load of 40 tons, with occasional overload conditions reaching 48 tons. This required exceptional material strength and structural stability.
Customer Requirements
●The hook assembly must perfectly match the existing 40t overhead cranes without requiring modification to the main structure, minimizing upgrade costs.
●The material must offer high strength, corrosion resistance, and wear resistance to eliminate cracking and rust issues while ensuring long service life.
●The solution must comply with Thai port safety standards and include comprehensive safety protection systems to prevent lifting accidents and enhance operational safety.
Customized Hook Assembly Parameters & Adaptation Plan
After conducting an in-depth study of Bangkok Port’s working environment and operational conditions, HSCRANE developed a tailored overhead crane hook assembly solution using premium alloy materials and optimized structural design.
●Core Product: Customized Overhead Crane Hook Assembly
●Rated Load: 40t (Maximum allowable load: 48t)
●Hook Material: Alloy structural steel with quenching and tempering heat treatment
●Hook Opening: ≤ 180 mm (maximum limit ≤ 198 mm, compliant with safety standards)
●Sheave Diameter: 560 mm (4 sheaves)
●Protection Grade: IP65
●Total Assembly Weight: 1.2t
Structural Optimization
●Improved load-bearing structure to reduce stress concentration and prevent crack formation
●Integrated cast sheave design with wear-resistant bushings to reduce abrasion and eliminate bearing jamming
Safety Enhancements
●Hook anti-detachment device
●Opening degree monitoring device
●Overload alarm system
●Real-time operational status monitoring to eliminate potential safety hazards
Installation Assurance
HSCRANE dispatched two senior engineers for on-site guidance. Replacement of each hook assembly required only 6 hours, and all four units were fully replaced and commissioned within just two days—minimizing downtime to the greatest extent possible.
Project Results & Customer Feedback
During implementation, HSCRANE optimized its supply chain and coordinated closely with Bangkok Port to ensure that the four customized hook assemblies were transshipped via Laem Chabang Port and delivered on schedule, preventing disruption to port operations.
Throughout installation, engineers worked closely with the local construction team, strictly adhering to safety regulations. The hook replacement, commissioning, and operator safety training were completed efficiently, enabling immediate return to service.
The customer reported that HSCRANE’s customized hook assemblies demonstrated strong compatibility and reliable quality, effectively resolving safety hazards and efficiency issues while fully complying with Thai port safety standards. The port plans to continue selecting HSCRANE components for future overhead crane upgrades.
Why Choose HSCRANE?
●Precise Custom Fit: In-depth analysis of Bangkok Port’s high-temperature, high-humidity, and salt-spray conditions, along with original equipment parameters, enabled a direct replacement solution without structural modifications—significantly reducing upgrade costs.
●Certified Safety Performance: Strict compliance with Thai port safety standards, equipped with multiple safety protection systems and material strength exceeding industry benchmarks.
●Efficient Global Service: Overseas engineers provided on-site installation guidance, ensuring rapid replacement and commissioning while minimizing downtime losses.
●Reliable After-Sales Support: 1-year free warranty, regular remote maintenance guidance, and after-sales service centers across Southeast Asia to ensure long-term stable operation.