Ultrasonic Thickness Measurements

Ultrasonic Thickness Measurement (U.T.M.) is a Non-Destructive Testing method through which we determine, using the appropriate equipment, the corrosion wastage in solid materials. In the shipping industry, we use the Ultrasonic Thickness Measurements (U.T.M.) to monitor the corrosion wastage of the structure of the vessel during particular periods of time.

Experience

Ultrasonic Thickness Measurement (U.T.M.) requires high-level experience in the field of Non-Destructive Testing (N.D.T.). Our team consists of highly trained service engineers (Naval Architects, Marine Engineers), with long-term experience in the field of U.T.M. on hull structures. Navaltech further advances the skills of our service engineers with seminars, theoretical training courses and on-board practical training.

Immediate availability

Ultrasonic Thickness Measurements (U.T.M.) is required by Classification Societies in particular periods of the vessel’s life in order to monitor the wastage of the structure of the hull. Our skilled service engineers are available 24/7 worldwide and can efficiently deliver the required project of Ultrasonic Thickness Measurements (U.T.M.) to the best satisfaction of our Clients and Classification Societies.

Non-Class Surveys

Ultrasonic Thickness Measurements (U.T.M.) are performed by our team whenever and wherever it is required, including for non-class hull surveys, pre-docking hull surveys, repair supervision or repair weight estimation.

The above non-class surveys can take place before or during drydocking, according to owner’s needs.

In addition, our qualified U.T.M. service engineers can also perform the below services.

  • Repair weight estimation before drydocking for the completion of the owner’s specification.
  • Repair weight estimation during drydocking for comparison with the shipyard’s calculations and charges.
  • Attendance and supervision of the hull repairs (fit-up, final inspections etc).
  • Mapping, Recording & Calculation of the staging (in m3) and coating area (in m2).
  • Verification of the shipyard’s project completion with the “work done list” delivered from the shipyard.

Equipment

All Classification Societies and ship owners require accurate measurements on the ship hull structure. Navaltech fully complies with all requirements using latest dual echo technology UTM equipment.

Certification

Ultrasonic Thickness Measurements (U.T.M.) projects, whenever and wherever they take place, require certification, especially during class surveys. Our service engineers are all certified Level II operators and attend frequent training in the office and on-board vessels.

Our Ultrasonic Thickness Measurements (U.T.M.) equipment is calibrated and maintained according to the manufacturer’s instructions and guidelines. Also, it is tested at least once a year (or more often whenever necessary) by certified, specialized, designated service stations in order to obtain the certificate of calibration.

Navaltech is certified by all IACS Classification Societies for performing Ultrasonic Thickness Measurements (U.T.M.) on vessels. Our class certificates include the following:

  1. Lloyds Register of Shipping (LRS)
  2. Det Norse Veritas (DNV)
  3. Nippon Kaiji Kyokai (NKK)
  4. American Bureau of Shipping (ABS)
  5. Bureau Veritas (BV)
  6. Registro Italiano Navale (RINA)
  7. Chinese Classification Society (CCS)
  8. Russian Maritime Register of Shipping (RMRS)
  9. Korean Register of Shipping (KRS)
  10. Indian Register of Shipping (IRS)
  11. Polish Register of Shipping (PRS)
  12. International Naval Surveys Bureau (INSB)

 

Find out more about our UTM services

Inspections and Repairs

Lifeboat and Launching Appliances

Annual, 5' yearly Inspections and Repairs of Lifeboats and Launching Appliances.

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Ultrasonic Thickness Measurements (U.T.M.)

Ultrasonic Thickness Measurement (U.T.M.) is a Non-Destructive Testing method through which we determine, using the appropriate equipment, the corrosion wastage in solid materials.

READ MORE

Cargo Gear Load Testing

Cargo Gear include all lifting appliances (cranes) used for cargo operations. Cargo Gear Inspection involves the visual inspection of all parts that compose a crane, as well as dynamic load tests, replacement of wires (if required) and Magnetic particle Inspection (M.P.I.) of main support bolts.

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FFE/ LSA

Inspection of fire fighting equipment is a very significant project that needs to be undertaken only by the most experienced and qualified engineers. Flawless operation of the fire fighting equipment, that is inspected during said surveys, is very crucial for the maintenance of safety on vessels.

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Accommodation / Pilot Ladders & Gangways

Ship ladders (pilot, accommodation, wharf) are required to be inspected (annually or 5-yearly load test) by an experienced and competent service engineer as per SOLAS & Flag Rules and Regulations.

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Non-Destructive Testing (N.D.T.)

NDT (Non-Destructive Testing) is required by the owner or the Classification Society representative for particular structure items (welding seams, plates, propellers) to inspect the possibility for any structure failure (cracks, blow holes, cavitation, etc.).

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Loose Gear Testing

Loose gear (i.e. grabs, shackles, chain blocks, pad eyes) are the equipment used on vessels for the necessary lifting operations. The inspection of loose gear is required in order to ensure the safe operation of lifting weights and also upon charterers’ request.

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Ultrasonic Hatch Leak Inspection

Ultrasonic Hatch Leak Inspection is a Non-Destructive Testing (N.D.T.) whereby, with the use of the appropriate equipment, tightness of Hatch Covers can be tested against leakages which can cause charterers claims and affect seaworthiness of vessels.

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Brake Hold Capacity Test of Mooring Winches

One of the most crucial inspections carried out onboard ships is the mooring winch brake test. Winches are critical equipment onboard ships and it is essential to monitor their performance.

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Bollard Pull Test

Bollard pull tests are carried out in order to certify a tug boat as fit for service, by measuring its power output. The power output of a tug boat determines the pull or towing force it is capable of applying.

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Repairs of Lifeboats (FRP & Inflatable)

A vessel’s lifeboats hull, whether made of Fiberglass Reinforced Plastic (FRP) or PVC or hypalon, occasionally can incur damages. In the event of damage, repairs must take place by a very experienced and well-trained service engineer who will ensure the best outcome of the repair.

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Replacement of Wires & Socketing

Lifting appliances (cranes, ladders, etc.) may require steel wire replacement in the event of damage; in addition, lifeboat davits must renew their steel wire every 5 years, as required by Flag Authorisation and SOLAS Rules & Regulations

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Lashing chains & Pots of Ro-Ro vessels / Pad eyes testing

Lashing chains and pots can be damaged by wrong use or as a result of the load moving in transit, hence the need to inspect them is very crucial.

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Anchor Chain Measurements

Anchor Chain Measurements are required by Classification Societies or by the owner at every dry-docking. The purpose of these measurements is to monitor the corrosion wastage of the chain.

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Steel Weight Estimation

Vessels and ships are exposed to harsh marine environments and over time are affected by the corrosion on their hull structure. This corrosion, if extensive, can cause serious damages to the endurance of the hull structure.

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Yachting

The experienced staff of Navaltech recognises the significance of the special treatment and care that needs to be provided to yachts.

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Certifications

View our Certifications

CLASS APPROVED

  1. Lloyd’s Register (LIFEBOATS / UTM / FFE / LSA)
  2. DNV (LIFEBOATS / UTM / FFE / LSA)
  3. NKK (LIFEBOATS / UTM / FFE / LSA)
  4. ABS (LIFEBOATS / UTM / FFE / LSA)
  5. BV (LIFEBOATS / UTM / FFE / LSA)
  6. RINA (LIFEBOATS / UTM / FFE / LSA)
  7. CCS (LIFEBOATS / UTM / FFE / LSA)
  8. RMRS (LIFEBOATS / UTM / FFE / LSA)
  9. INSB (LIFEBOATS / UTM / FFE / LSA)
  10. KRS (LIFEBOATS / UTM)
  11. IRS (LIFEBOATS / UTM)

MAKER APPROVED FOR LIFEBOATS , LAUNCHING APPLIANCES AND RELEASE GEARS

  1. Fassmer - Marland Ltd. / Hai Hong Boat Making Co Ltd.
  2. Qingdao Beihai HeavyShipbuilding Industry Co Ltd.
  3. Jiangsu Jiaoyan Marine Equipment Co. Ltd / Jiangyin Xinjiang F.R.P.Co.,Ltd.
  4. Jiangyinshi Beihai LSA Co.,Ltd.
  5. Sangsangin Industry Co. Ltd./ ex-Dongnam Marine Crane Co. Ltd.
  6. Oriental Precision & Engineering Co., Ltd.
  7. Wuxi Hai Hong Boat Making Co. Ltd.
  8. HXN (ZhejiangHengxin Ship Equipment Co., Ltd).
  9. DSB Engineering Co., Ltd.
  10. Wuxi Huahai Marine Equipment Factory.
  11. Wuxi Wenjiao G.F.R.P. Factory.
  12. Wuxi Dongwu.
  13. Wuxi Mingzi Machinery Manufacturing Co. Ltd. (Release gears –Hooks).
  14. Zhenjiang Marine Auxiliary,
  15. GEPA-Fiberglass Industry & Trade Co.Inc.
  16. Stoczna USTKA - Lifeboats & Launching Appliances,
  17. NOR-MAR FAR EAST Services,
  18. Jiangyin Neptune MarineAppliances Co. Ltd.
  19. Sezamor
  20. Jiangyin Wolong FRP Boat Co. Ltd.
  21. Gurdesan Lifesaving systems.
  22. Jiangsu Huaiyin Marine Machinery (Lifeboats, Release Gear & Launching Appliances)
  23. Wuxi XingSheng (Release Mechanisms)
  24. Shin Myung Tech
  25. Lalizas (Release Mechanisms)
  26. Narwhal (Rescue Boats)

FLAG APPROVED FOR LIFEBOATS , LAUNCHING APPLIANCES AND RELEASE GEARS

  1. Hellenic
  2. Bahamas
  3. Panamanian
  4. Liberian
  5. Palau

ISO: 9001:2015

ISO: 23768