0.39” / 10mm or larger diameter silver is commonly used for anchorage particularly if manually pulling up the anchor as the larger diameter rope is kinder on the hands. With the advantage of an electric winch, you no longer have to manually handle the rope, therefore smaller diameter can be used. As you can see from the table above, the 0.39” / 10mm Silver has a breaking strain of 1741 lbs / 790 kg which is less than the 2204 lbs / 1000 kg break strain of 0.24” / 6mm double braid.
Double braid or braided ropes have become very popular. This rope is very strong, durable, lays well on our anchor winches, but on the flip side has no stretch and is not easy to splice. To overcome this, Stressfree Marine braided ropes are eye spliced to a 5.47yd / 5 meter length of 3 strand nylon then the chain. Not only does this add stretch, it also takes the shock out of the rope and acts as a sacrificial rope which over time will wear and the 3 strand nylon can be easily spliced and replaced.
Super braid and spectra kits are also available. These are not off the shelf items, however they can be custom made to meet your requirements. See table above for break strain.
A swivel is always recommended between the chain and anchor. This will assist to take the twist out of the rope on retrieval of the anchor.