The capacity of the towing pin depends on the way that it is being used, as the corresponding reaction forces on the pins depend on the circumference of the pins. When the wire leaves the centre line of the ship within an angle of ± 30º, the bollard pull indicated is guaranteed. Where the angle is greater than 30º (abeam and beyond), the capacity will decrease accordingly.
Pins are currently being developed for larger vessels, allowing them to be used up to a bollard pull of 100 tons.