We Produce / Manufacturing process of Pre-stressed Spun Concrete Poles. The high tensil wire are pre-stressed against the pole form and cement concrete is compacted by rotating the form at gradually increasing speed to a maximum of 600 R.P.M on a machine. The spinning process introduces qualities in concrete, which cannot be obtained by more conventional casting and concrete compacting systems. It produces concrete which is highly resistance to corosion. The centrifugal casting process automatically form a hollow raceway inside the pole thereby providing a smooth conduit for electric cabels.
The initial cost of pre-stressed spun concrete pole is less than 50% of steel poles. The pre-stressed spun concrete poles has a much longer service life (50-75 years) as compared to R.C.C or steel poles. Pre-stressed spun concrete poles do not require any concrete foundation and can be directly embedded in normal soil resulting in much cheaper erection cost compared to steel poles. Resistance due to wind is less due to its circular section. The concrete of spun concrete pole has a minimum strength of 6000 ibs per sq inch on cylinder, which is highly resistance to corrosion due to brackish water and wind.
