- Own warehouse facilities
- Experienced personnel
- R&D department
- Zinc plating site and powder coating paint-shop
- Engineering office
- Own warehouse facilities
SPECIAL ANTICORROSION COATING
Thanks to its unique properties. special metallic coating ensures long-term anticorrosion surface protection. Durability is 10 times higher when compared to galvanized steel. Reinforced construction steel used for our mounting systems is pricewise the best alternative for hot-dip galvanization process.
The company has a tool room that provides for flexibility in meeting the demands and expectations of the market. Making our own punching dies shortens the waiting time and lowers the costs. The department employs experienced engineers fully vested in design and construction.
The production of the accessories is semi-automated, whereas the production of the connecting elements is fully automated. All elements made of composite are manufactured on injection moulding machines.
Zinc plating site
Hot-dip galvanizing is an immersion method, meaning that both the preparation of the surface and the galvanising are done by immersion in a bath with an appropriate chemical solution. This technology enables reaching every crevice, cleaning it and protecting against corrosion. The final stage of the galvanisation is the application of zinc layer onto clean steel elements that are dipped in molten zinc. The temperature of the zinc bath is about 450 degree Celsius, facilitating the quick reaction between the iron and the zinc and resulting in formation of zinc layer on the surface of steel. The composition and the properties of the layer depend on the chemical composition of the steel surface, its thickness and construction. When the requirements for the steel type, particularly the content of silicon and phosphorus, are met, and the elements for galvanisation are constructed properly, the obtained layer is anti-corrosive, non-porous, adheres strongly to the surface and is resistant to mechanical damages, abrasion, erosion and impact.
Hop-dip galvanising produces the layers of 70-150 micrometers. It is enough to protect the steel against corrosion for decades. The average durability of the zinc layer is 30-50 years.
The thickness of the zinc layer is measured in micrometers; the mass of the layer is measured in grams/square meter.
Before painting, the input material of the antenna (galvanized sheet metal of appropriate thickness) must be quality controlled. Then the surface must be prepared for paint powder coating. The surface is degreased, the iron is phosphatised and rinsed with water. The washing solution is made with chemical components produced by NABU and its parameters such as concentration, pH and temperature are strictly controlled. The layer of iron phosphate provides anti-corrosion protection and increases the adhesion of the paint, making the layer uniform and precise. The next stage is the drying of the phosphate layer.Then the antenna is paint powder coated in an automated painting chamber. The process is supervised by a Swiss company GEMA. The paint used is facade polyester which is resistant to environmental conditions, does not fade or lose shine and absorbs less sun rays.After the painting, the powder layer is hardened in a kiln. The final stage of the painting process is quality control: measuring the thickness, adhesion, the degree of polymerisation and the visual assessment of the layer.