Bollards from GLEN are suitable for industrial Oil & Gas, Bulk mineral & liquid terminal berths; Material off-load & heavy-lift facilities, ferry, Container & fishing wharfs; Recreational jetties & marinas.
The normal used material is cast steel, ductile cast iron and stainless steel, but the ductile cast iron is our first choice for its high corrosion resistance and high tensile strength which can save much time and cost in maintaining.
By many years of design, the bollards were kept finite elements and optimized geometrical shapes which ensure the safety and stableness.
Bollards designed by GLEN have a safety factor 1.5~3 times than working load. Raw material test and load test ensure our bollards are qualified. All bollards are well painted with epoxy primer & middle coat, and polyurethane topcoat against corrosion.
* Advantage of Ductile Cast Iron: more corrosion resistance than steel and can tolerate compromised coatings better than steel. Ductile cast iron is more fluid during casting stage which results in a smoother finish.
* Advantage of Cast Steel: available in a wide range of strength, this allows the bollard to be commercially competitive versus thicker cast iron bollards. The ductility of cast steel gives needed structural margin in the event of an overload situation.