Services · Paperwork that matches the gear

Inspection & certification

Test and thorough-examination certificates issued in our own name by our competent person, against the item's serial number — and help reading the paperwork you are offered.

  • Certificates on the serial number
  • Class-witnessed: IRS · ABS · LRS · BV
  • Re-test and re-certification of your gear
Hydraulic test rig in the Sealinkers workshop

Certificates we issue

Issued in our own name by our competent person.

Test and thorough-examination certificate, issued against the serial number

Our main certificate: the item examined and proof-loaded, recorded against its serial number.

Proof-load certificate

The load the item was actually pulled to, for jobs that ask for it separately.

Certificate of conformity

Confirms the item matches the standard or specification it was ordered to.

Specimen Sealinkers test certificate (redacted sample)

Specimen

What is on our certificate

Every certificate is traceable to the serial number on the item, and records the proof load applied and the working load limit. The item leaves tagged with the same serial number.

  • Item description and serial number
  • Proof load applied
  • Working load limit
  • Class-society witness, where the job is surveyed

Buying certified gear

The five documents to ask for — and the one that is usually missing

01

Works test certificate

From the mill that made the material.

02

Proof-load certificate

The load the item was actually pulled to.

03

Breaking-load certificate

This is the one. It requires a destructive test on a sample from your batch — so a seller who cannot tell you which batch your goods came from cannot produce it.

04

Class certificate

Where the job is surveyed — IRS, ABS, LRS or BV.

05

Works approval certificate

The maker's approval, typically valid five years.

Ask for all five before you accept gear offered as certified.

Field notes

What we see on the test floor

Six things that turn up again and again when gear comes in for test.

Mismatched grade

Slings presented as Grade 100 where the master link and hooks are stamped Grade 8.

Mismatched paperwork

Genuine EN 818 chain assembled with unmarked or lower-grade components. The most common standards problem is not fake chain — it is mismatched paperwork.

Hidden core

Ropes with bright, sound exteriors whose cores have rusted to powder.

Swapped pins

Shackles bought correctly, but with pins swapped between bodies over years of use.

Sling angle

Two-leg sets showing stretch or crushing damage at identical positions on both legs — almost always the survivors of habitual shallow-angle lifting.

Never registered

The commonest compliance failure is not a failed test. It is gear that was never entered in the register at all, so nobody tracked its due date.

Wire rope sling under proof load on the Sealinkers test bed

Your gear

Re-test and re-certification

Lifting gear needs examining at intervals through its life. Send it to our test house, or we come to you, and it returns with a fresh certificate on its serial number.

  • Proof-loaded on our own machines, 1 to 1,200 T
  • On site with water bags and load cells
  • Grades, markings and paperwork checked against each other

Class societies whose rules we test to

Frequently asked questions

What is the difference between a proof-load and a breaking-load certificate?

A proof-load certificate records the load the item was actually pulled to. A breaking-load certificate needs a destructive test on a sample from your batch, so a seller who cannot tell you which batch your goods came from cannot produce it.

Can you certify gear we bought elsewhere?

Yes. Send it to our test house, or we test it on site. It is proof-loaded, examined and certified in our own name on its serial number.

Which class societies witness your tests?

IRS · ABS · LRS · BV — Indian Register of Shipping, American Bureau of Shipping, Lloyd's Register and Bureau Veritas — where the job is surveyed.

What is a works approval certificate?

The manufacturer's approval from the class society, typically valid for five years. Ask for it alongside the test certificates.

Why does a register matter?

The commonest compliance failure we see is not a failed test. It is gear that was never entered in the register, so nobody tracked when it was due for re-examination.

Need gear certified?

Tell us what it is, how many and where — we reply with the test, the certificate and a price.