Kidney Bollard is an important part of the mooring system, which is one of the most common bollards for jetty, quay and wharf. It is usually a short post on the wharf/quay, used to fix the mooring ropes to hold the ship.
Kidney Bollard is very simple, it is designed with a thicker diameter at the top (head/tip of the structure) to make the mooring rope more difficult to accidentally escape. It is made of ductile cast iron or cast steel, and the surface is sandblasted to Sa2.5, and then completely painted or with anti-rust primer, which can be used in harsh environments. Its mooring line capacity ranges from 10 tons to 200 tons, covering various mooring line capacity requirements from small ports to large bulk cargo handling terminals.
Kidney Bollard is particularly suitable for applications where tidal ranges are small, and is a popular choice for warping operations along quay-sides. We particularly recommend a vertical mooring angle of 0º to 40º for this type of bollard, although it can be used between -15º and 60º. For horizontal mooring, it works best at 180º. The wide size range makes it an ideal choice for small ship berths and large bulk cargo terminals.