Cast Steel Kidney Marine Mooring Bollard

● Material: Cast iron or cast steel
● Capacity: up to 200T
● Suitable for the berths with small tidal ranges
● Best at shallow line angles
● Ideal for warping

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Description

Kidney marine mooring bollard

Kidney type mooring bollard also called K-head mooring bollard. It is a popular choice for warping operation along quay-sides, for limited tide ranges, and low line angle. The wide range of sizes makes it ideal for small vessel berths and larger bulk terminals alike.

Main Technical parameter

Capacity	Bolts	Bolts Quantity
15 T	M24	5
30 T	M30	5
50 T	M36	5
100 T	M42	7
150 T	M48	7
200 T	M56	8

Bollard material for choose:

There are usually three material used on mooring products, cast steel, ductile cast iron and grey cast iron. Cast steel is the most reliable. Many cast iron foundries lack the facilities to make consistently high quality ductile cast iron. Grey cast iron is not recommended for bollards.

Following table shows their difference.

Requirement	Grey Iron	Ductile Iron (SG)	Cast Steel
Load capacity	Variable	Fair	Excellent
Holding power	Variable	Fair	Excellent
Load fuse designs	Not possible	Not possible	Most types
Impact strength	Poor	Fair	Excellent
Low temperature rating	Brittle	Brittle	–20°C (lower on request)
Wear resistance	Poor	Poor	Very good
Fatigue resistance	Poor	Poor	Excellent
Corrosion resistance	Excellent	Excellent	Excellent (painted)
Long service life	Variable	Good	Excellent
Cost benefit	Poor	Fair	Excellent