What is better?

Are welded constructions any better than bolted?

A big communication towers form problems with transportation. For example Altruss H32 tower has base size of 4,5 by 4,5 by 6 meters. Not an easy piece to drag on a higway. Most of our constructions are hybrid  – lower sections are bolted, and upper (small ones) welded. Welded sections are quicker to install on site, and less things may go wrong with them during installation, but they are more prone to frost cracking, and welding errors. Bolted sections are little more expensive to manufacture and take more time to assembly, but transportation is cheaper and easier, plus there is nothing that may go wrong with them when assembled (bolts may become rusty after couple of years, but not much more).

As for stiffness (that is common concern) they perform the same. Bolted constructions show advantage when they are done with the job in one place (easier to disassemble and sell, or bring to another location)

How welding technique influences the final product

Welding quality is a key to safe product in mast business – and we are serious about this. In Altruss we do weld only in TIG process and with best possible equipment by Fronius and Kemppi. On top of this we use certified rods by ESAB to all sensitive works and AirLiquide argon gas in 5th grade of purity. All welders are well trained, and their job is randomly checked, plus samples are destroyed to see if the weld had right amount of penetration.

Alternative to the TIG process is MIG – which is quicker, needs less qualifications, easier to master – but controll over weld penetration is inferior. In Altruss we use MIG process only for steel where above problems do not occur.

How do we attach antennas the smart way?

Telecommunication mast, as each truss construction has nodes or joints, that are the most robust places in the whole structure.  Every force we use on the mast shall concentrate around these nodes, no matter if during building or choosing a place for guy wire mounting points or finally when mounting antennas. The node is a place where cross members meet on the corner pipe.

 

I’m from England, France, Germany – you name it, Altruss is located elsewhere – will it work?

Definitely yes. We are all EU now – so export/import is easier than ever. No VAT in export,  unified invoices, PayPal or SWIFT payments mean we can exchange cash for goods as quickly and comfortably as in our local grocery market. Never tried to import? Now it’s a good time!

Altruss speaks English, Russian, Polish, German – so there is big chance we will not be lost in translation. Okay you do not feel comfortably to speak English (I know you French people 😉 then still we do have google translate. In extreme situation we can hire an interpreter of your language. Why not? Just let us know.

Altruss and prviously Alupro has 8 years of experience in export to most of european markets. Our towers/masts work in Germany, Austria, France, Spain, Slovakia, Czech Republic, Sweden, Norway. Most of our clients stay with us for next/future projects.

We do static calculations in accordance to Eurocode and its local extension (annexes). So you may get all the paperwork tailor cut to your market reality.

If product certification is needed: we work with our partner company Rolstal to provide any possible proof of quality including set of TUV, GSI-SLV, marine certificates. Most important we comply with ISO 3834 and ISO 1090 norms. Is your legislation still not happy? We can do bolted version of what you need, so no certification beyond „CE” declaration shall be needed.

We work 7:00 AM untill 20:PM CET – uder e-mail, Skype and phone, so It shall be not a problem to get answers from us.

Okay how about installation and transportation? Small quantities, single units are sent with courier services or through online dispatch markets (like Timo.com). Bigger loads get dedicated transportation from us (we take care of everything). If needed our company team can come and do the installation for you guys anywhere in Europe.