Project Overview
Industry: Marine & Defence Industry
Location: NSW
Duration: 2 Days
Types of Laser Used: 500W
Summary:
Precision Laser Cleaning was engaged to undertake corrosion removal works within the elevator shafts of one of the Landing Helicopter Dock Ships (LHDs) for the Royal Australian Navy.
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The Challenges
Containment: The works were required within a live ammunition elevator lift, meaning that a methodology was needed that did not rely on extensive containment or encapsulation, while still ensuring the safety and efficiency of the operation.
Vertical Access: The project required working at heights of up to 50m, making traditional access methods like EWPs (Elevated Work Platforms) or scaffolding impractical. A suitable methodology that could access these areas directly from existing structures was needed.
Dust Control & Sensitive Areas: Given the nature of the equipment, it was essential to employ a dust-free, dry process to avoid contamination of sensitive areas within the shaft, the rail runners, and adjacent workspaces.
The Solution
Containment: No containment measures were required for the project as the laser cleaning process does not involve abrasive media or chemicals. This ensured minimal disruption and maintained operational efficiency throughout the process.
Vertical Access Operations: PLC deployed one of its 500W Pulsed laser systems directly onto the lift platform, allowing the team to clean the rail runners systematically from top to bottom, all while remaining in situ. This avoided the need for scaffolding or additional equipment.
Dust Control & Sensitive Areas: The corrosion debris and fumes generated during cleaning were captured using inline HEPA extraction systems. This ensured that no dust or debris entered critical areas or sensitive equipment within the shaft, while also protecting adjacent trades and workspaces.
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The Results
The project was completed without dust and debris with no disruption to other work areas. PLC’s laser cleaning removed all corrosion from the lift shaft rails, ensuring smooth operation. The method’s chemical and abrasive-free process, requiring no containment or scaffolding, provided a safe, cost-effective solution that minimizes downtime and supports ongoing maintenance programs for naval and maritime vessels.
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