Dexon TechnologySlew ring bolts hold an offshore crane securely together as it rotates, but inspecting them for internal damage can mean costly, time-consuming removal. Dexon’s PAUT-based method detects defects while the bolts remain installed, reducing downtime and unnecessary disassembly.
Slew ring bolts are critical components that withstand the forces generated during crane rotation and lifting operations. Damage caused by fatigue, cracking, corrosion, or material degradation—particularly in offshore conditions—can compromise crane integrity and increase operational risk.
Dexon's PAUT inspection technology uses ultrasonic beams at multiple angles to examine the bolt and identify potential abnormalities, including:
• Fatigue cracks
• Thread wear
• Corrosion
• Internal material defects
Inspection results can also support Predictive Maintenance and Asset Integrity Management programs, giving operators the information needed to plan maintenance more effectively.
With extensive experience in engineering inspection technologies and the development of specialized solutions for the energy industry, Dexon continues to advance inspection technologies that support greater safety, reliability, and operational efficiency for customers across the global oil, gas, and energy sectors.