Cargo Hooks & Shackles · Cargo Lashing & Container Equipment
Swivel (BG 20.500.C) by Ropeblock B.V. DNV TA certificate TAS000053B.
| Visual inspection | before significant lifts and per the periodic lifting-gear register, commonly every 3-12 months depending on flag/class requirement |
|---|---|
| Thorough examination by a competent person | annually per lifting gear regulations |
| NDT | at intervals set by class or flag, or after any suspected overload or shock load |
| Load test/proof load | at initial certification and after any significant repair, per class requirement |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Pin bore elongation | general lifting-gear rule of thumb is discard around 5% increase in bore diameter - confirm against Ropeblock's or the class-specific criteria for this swivel |
|---|---|
| Corrosion/wear reducing cross-section | discard per class/DNV lifting gear criteria - no generic numeric figure available for this specific model |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
DNV type-approved cargo lifting swivel, carried on the ship's lifting appliance/loose gear register. Class requires annual thorough examination, periodic NDT, and retention of test certificates (WLL, proof load) on board; do not use if the certificate is missing or expired.
Estimated lifetime: Lifting swivels are not rated in running hours; service life is governed by periodic thorough examination, NDT and load test rather than hours, and a well-maintained unit can remain in service for many years subject to passing each periodic inspection.
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
Free of charge — send us your request for Ropeblock B.V. equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Ropeblock B.V. first.
Tell us what you need for this Ropeblock B.V. Swivel (BG 20.500.C) — a part, a service call, a second opinion. Are you Ropeblock B.V.? Claim this brand page.
Service engineer? Write the day report for this Swivel (BG 20.500.C) in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.