1. High mast poles are widely used for the public square,football feild, viaduct, stdium,sea port,airport and so on which need a very high height to supply lights for a huge area in the night.Normally, the high mast poles are lift the lights penals with two methods: fixed lighting penal by bolts on the poles or lift the light penals with  lifting systems which controlled by the winch installed in  the inside of the door. The normal height of the high mast pole is from 20m to 50m with several sections  which can installed by slip joint or flange joint method for easy transport delivery by containers. If you want to get an offer for the high mast poles,plz feel free to contact with us,and our people will contact with you asap to confirm everything you needed,then we will calculate the exact price for you.

Normally,we welding the high mast poles with submerge-arc welding and CNC welding with beautiful welding line and good quality,we strickly control the test the welding by the flaw testing with ultrasonic crack detection to make sure there is no crack、undercut、slag inclusion、hole vent for the welding. With the good control,we proud to say that our products always wins our customer’s appreciation for our quality.

 Standard:GB/T 13912-2002 or ASTM A 123

Both outside and inner side of the steel mast are treated with acid cleaning firstly,then been moved into the zinc pools with more than 450°C temperature completely.At last,the steel mast are finished the galvanization progress for the anti-corrosion disposal after the passivation,phosphorization which can be continually protect the steel mast without corrosion more than 30 years.Our standard for a good hot dip galvanization steel mast is same color of the zinc coating without dent mark,no exposed iron and hang of zinc of defect. Normally speaking,the thickness of the zinc coating is up to the materials thickness.The thicker the material is, the thicker the zinc coating will be.

• Ater hot dip galvanization,the high mast poles should been rechecked for the hot dip galvanization
• Then should been Straightening to keep it’s straightness .
• Remove or repair the steel mast if there’s any defects
• Install the accesseries if there is needed
• Pack the mast accordingly
• Loading for delivery