Ultrasonic Thickness Measurement (UTM) surveys are a key part of assessing the structural condition of vessels for class renewal, CAP and owner’s inspections.

Harbort provides UTM survey services for shipowners, managers and operators who require accurate thickness readings, clear reporting and dependable technical support during surveys and repairs.

Inspections are carried out by experienced technicians using calibrated equipment and procedures aligned with the requirements of DNV, Bureau Veritas (BV), Lloyd’s Register, RINA, Nippon Kaiji Kyokai (ClassNK / NK), Korean Register (KR) and Polski Rejestr Statków (PRS).

Introduction

What the service includes

The scope of service covers thickness measurements of hull structures, decks, bulkheads, ballast tanks, cargo spaces, superstructures and other steel members required by class or requested by the owner.

UTM surveys can be performed for Special Surveys, Renewal Surveys, CAP inspections, pre-purchase condition checks and owner’s technical assessments.

Measurements are taken in required and suspect areas, recorded systematically and presented in a report suitable for class review and maintenance planning.

Reporting and deliverables

Each survey is followed by a structured report containing thickness tables, measurement locations, comments on wastage and identification of critical areas where steel diminution is significant.

The documentation supports communication with attending surveyors, repair yards and technical managers, helping to plan steel renewals and dry-docking works more efficiently.

Where necessary, findings can be discussed directly with the attending class representative to streamline the survey process.

Why choose Harbort

Harbort focuses on practical, reliable and efficient UTM attendance for commercial vessels operating in Baltic and North Sea ports.

The service is designed to support survey schedules, reduce delays and deliver technically clear results that owners can use immediately.

Experience with major classification societies including DNV, BV, Lloyd’s Register, RINA, NK, KR and PRS helps ensure that measurements and reporting meet expected standards.

Service area

Attendance can be arranged in key Baltic and North Sea ports including Klaipėda, Riga, Ventspils, Liepāja, Tallinn, Muuga, Paldiski, Gdańsk, Gdynia, Szczecin, Hamburg, Bremerhaven, Rotterdam, Antwerp, Amsterdam and other ports subject to access and schedule.

Each project is coordinated according to vessel type, survey scope and port stay duration.