It should be checked what is the type of crane and what is its tonnage
Because in some light cranes, the construction or repair of the mast is very expensive, which may be purchased at a lower price than the construction.
Among these types of cranes are light devices from 1 ton to 5 tons.
In Tadano Super Z 3 ton cranes, which bends a lot in the area of the first telescope (the first slide after the mother mast), it can be made as fabric stock at a more reasonable price than manufacturing. and the same applies to the 3-ton Yonik mother mast. However, in heavier cranes, due to the heavy import costs and high transportation fees, it is economical to build or repair the mast.
Question Here is whether the mast that is built or repaired in Iran will be of the same quality as the fabric mast or not? The quality of the fabric mast is also better, but there are some important points about cutting and replacing the damaged part, which we mention,
1: cutting method
2: fixing the mast on the fixture
3: type of sheet used
4: welding method (wps)
and other things
in the metal form collection of all rigs built and even repaired, 20% higher From the load chart, the device is tested and delivered, and according to the load chart, it is guaranteed for one year