4 Categories of Anchors - Stockless Anchors

A stockless anchor is a two-fluke anchor that has no crossbar and can be turned by the flukes. The characteristics of this kind of anchor are that two claws are simultaneously inserted into the soil during work, good stability, strong adaptability to various soil qualities, and convenient collection. Stockless anchors have developed rapidly, from the first generation to the third generation. Commonly used stockless anchors mainly include Hall anchors, Spek anchors, AC-14 anchors and DA-1 anchors.

Hall Anchor: Hall anchor is the first generation of modern standard stockless anchor. This kind of anchor is simple to make, convenient to collect, large grasping power and good grasping ability. It is the main anchor of large and medium-sized ships, and China likes to use this kind of anchor.

Spek Anchor: It is an improved type of Hall anchor, and its structural characteristics are that the anchor crown is equipped with anchor crown plate and reinforcing rib. Therefore, the claws of this anchor are easy to turn to the ground, have better stability, and do not scratch the ship's exterior plate when collected.

AC-14 Anchor: Second generation called rodless anchor. Its anchor crown is very wide, the anchor claw is long and thick, and has longitudinal edge. This kind of anchor is heavy and strong in grip. Good stability. It is commonly used as the main anchor for large container ships, car carriers and very large oil tankers, and is commonly used in Europe and the United States and Japan.

DA-1 Anchor: The DA-1 anchor, known as the third generation stockless anchor, is currently the most stable and structurally advanced anchor in the world. The anchor crown is wide and the end is triangular, the claw is very long is composed of two inclined plane inverted V shape, the distance between the two claws is very small, this anchor has the most suitable Angle of soil, the biting area is large, the gripping force is large, the grasping ability is good, the stability is strong, the collection is convenient, because the DA-1 anchor is almost all composed of straight inclined plane, the sediment is less attached and the washing is convenient when the anchor is lifted. The Japanese shipbuilding industry believes that this kind of anchor is the most ideal and the most promising anchor.