Our ZAZ steel buoys are with of steel construction and with excellent stability characteristics.  All ZAZ Marine Steel buoys are made by IALA guidelines.

All navigation buoys are successfully being used to demarcate a variety of marine and coastal areas, such as waterways, marinas, rivers, port entrances, ocean and offshore locations.

They are characterized by their high shock resistance and stability. Metallic parts of the buoys (superstructure and tail) are made from hot-dip galvanized steel, and designed to provide a long service life under harsh marine conditions. They can be customized under the client’s request, as well as be made from stainless steel or marine aluminum.

Brand: ZAZ 

Diameter: 1800mm

Total height: 4500mm

The thickness of the plate: 6 mm

Navigation draft: 2500mm

Total weight: 4500kg

Wind resistance: >45m/s

Temperature range: -40~50℃

Anchor Chain diameter: ¢28mm

Sinker weight: 2000kg~3000kg

Focal height: >3000mm

The height of freeboard: >700mm

Reserve buoyancy: 2500kg

Pictures of our workshop:

About Welding

* We use CO2 welding, manual welding, Submerged arc auto welding, and automatic welding.

*All weld surfaces should be visually inspected, the weld wave should be uniform, and the edges of the weld should be smoothly transitioned to the base metal,

The shape and size of the weld should meet the requirements of the drawing, and the surface of the weld shall not have cracks, slag, unfused, porosity, weld tumors, and arc pits;

*We use ultrasonic flaw detection technique to complete the welding testing 

About Painting

* We use epoxy paint.

*Shot peening pretreatment will be the first step, and then we will paint the anticorrosive paint within 4 hours after pretreatment.

*We use high-pressure airless spraying as much as possible.

* For the parts that are difficult to spray, such as welding lines and frame edges, we usually brush one or two layers before formal coating. 

Pictures of our processing equipment: