Useful Tips For The Installation And Inspection Of Marine Anchor Chains
    • Last updated October 31, 2023
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Useful Tips For The Installation And Inspection Of Marine Anchor Chains

Posted By esimtech esimtech     October 31, 2023    


The marine anchor chain can counteract the effect of external forces on the ship to ensure that the ship can safely berth in the designated waters. Therefore, attention should be paid to the anchor chain installation, inspection and maintenance during use.

Stud link anchor chain

What Are The Installation Requirements

Before the installation of anchor, anchor chain, swivel ring, and connecting ring, the product number of the ship inspection, the manufacturer's product number, and the anchor quality shall be carefully copied. After inspection, the specification and quantity can be shipped only when they meet the requirements of the drawing, and the number shall be recorded.

According to the number of marine anchor chains required in the drawing, it is connected into a whole anchor chain through the connecting ring and swivel ring. The anchor chain is required to be firmly connected and installed and fixed with lead sealing. The two ends of each anchor chain shall be painted to identify the number of knots thrown by the anchor chain. This work can be completed at an appropriate time in the future.

How To Inspect Marine Anchor Chain

The chain link and shackle will be worn, cracked, deformed, and loose after long-term use, so marine anchor chain Inspection must be carried out, including wear inspection, crack inspection, deformation inspection, and loose structure inspection.

1. Wear Inspection

Check the contact point between rings and the friction point of the chain pipe, and measure its diameter with a caliper. The limit of anchor chain wear is: the average diameter of the anchor chain worn by ships in ocean shipping area shall not be less than 88% of the original diameter; The average diameter of the worn anchor chains of ships in offshore and coastal navigation areas shall not be less than 85% of the original diameter.

If the wear of the chain link or marine anchor shackle without guard exceeds 8% of the original diameter, it cannot be used again.

2. Deformation Inspection

Check whether the chain link is bent or twisted by visual inspection or measurement.

3. Structural Looseness Inspection

The pins of connecting chain links (after being disassembled for inspection, grease shall be applied to the inner joints before reassembly) and shackles will become loose due to the lead seal falling off, so they should be carefully inspected one by one.

4. Crack Inspection

Knock each chain link and shackle with a hammer to see if the sound is clear.

The anchor and anchor chain shall be deducted and painted regularly. After each repair and inspection, two coats of coal tar asphalt paint shall be applied, and then the anchor chain shall be marked.

YSmarines is a professional marine anchor chains supplier with the best prices. All the chains are tested by UT and MT detection and proof and loading test have been passed. Their surface could be blacking painting or hot-dip galvanized. All the chains could be approved by marine classification society such as ABS, DNV, RINA, LR, BV, CCS, BKI, etc.