We perform specialized high-altitude works with the use of professional equipment and experience that we have gained over many years in cooperation with companies from the following industries: Offshore, Subsea, oil and gas industry, shipbuilding, industrial construction and energy. We are not only qualified to use rope equipment, but also have skills in welding, structure and pipeline assembly, as well as NDT techniques.
What can we do for you?
Welding at height
We weld using MMA (111), TIG (141), MIG (136.138.131) methods, on both offshore and onshore.
Assembly of steel structures at heights
As part of assembly services, we offer assembly, disassembly, modernization and repair.
Performing non-destructive NDT tests
We perform visual, penetration, magnetic-powder, ultrasonic and eddy current tests.
Transportation of structures at heights
We cooperate with companies and contractors who carry out construction projects, helping to assemble structures at high heights.
Prefabrication of structures and pipelines in the workshop
We specialize in the prefabrication of medium and small steel constructions and industrial pipeline systems.
We offer welding works performed at height. We have appropriate qualifications and skills, which is confirmed by DNV GL TUV LLOYD certificates of our welders. Many years of experience combined with comprehensive knowledge and precision of operation always results in a perfectly executed task. We deal with welding of black and stainless steel, aluminum and titanium, we also weld structures and pipelines, and carry out work indoors.
Amongst the welding methods we use there is the MMA shielded electrode welding method (111). It is the most universal and, at the same time, the oldest method, it uses a shielded electrode, consisting of a metal core and lagging. Its advantages include the ability to weld different metals and in any position and conditions. MMA welding machine is designed for welding thin and thick elements. Most often we use it to weld steel structures and choose it for installation works on the construction site. It is also used in places that are difficult to access.
Another welding method is MIG/MAG, which uses an electric arc. This is produced between the consumable electrode and the material to be welded. As with MMA, this method can be used to weld many metals in all positions. Its big advantage is its high welding efficiency, several times higher than in the case of the MMA method. We also weld with the TIG method, in which the electric arc is produced by means of an infusible tungsten electrode. All works conducted with the use of this method take place in an environment filled with chemically inert protective gas, which protects the weld and electrode from oxidation. TIG is used in the welding of thin sheets as the method ensures cleanliness of the weld and great ease of welding control.
Installation of steel structures at heights
Steel structures are present in virtually every construction project. Often they are required to be installed at heights, which means that there is a need of the right skills and climbing equipment. We deal with assembly, but also disassembly (modernization and repair) of steel structures and pipelines. We work in hard to reach places and unfavorable conditions, being properly prepared for any inconvenience. We modernize steel structures and repair them. Using modern preservatives, we protect steel surfaces against corrosion. We also perform works aimed at strengthening steel structures. We have all the necessary knowledge, including technical and isometric drawing, allowing us to carry out the most demanding projects.
Plasma cutting and cutting with an acetylene-oxygen burner
As part of our services of assembling steel structures at heights, we also offer cutting with two techniques. The first one is plasma cutting. Plasma is an ionized matter, with a state of aggregation that can be compared to gas. During cutting the metal melts and is ejected from the gap. This is done by a highly concentrated plasma arc, which is characterized by high kinetic energy. Plasma cutting is 5-7 times faster than oxygen cutting. There is no need for heating, and the cutting can be done without burning thin materials. The cutting process is easy to automate.
An alternative to plasma cutting is gas cutting. Low carbon steel is commonly used in this case. During cutting, the material is fed to the ignition temperature and then burned. Then metal oxide fluids are blown out under high pressure. The effectiveness of the gas method is primarily influenced by the design of the burner. It is also characterized by a wide range of cutting thicknesses and guarantees high cutting quality for thick materials. It can be used to make cuts at different angles.
Performing NDT tests
Rope access and the alpine skills of our team allow us to carry out NDT projects both at heights and in hard to reach places. In order to detect various types of abnormalities, we use several testing methods, adjusting them individually to a particular case.
Non-destructive weld testing methods
Visual tests (VT)
Penetration tests (PT)
Magnetic-particle test (MT)
Eddy current test (ET)
Ultrasonic test (UT)
Other methods we can offer include ultrasonic thickness measurements (UTT) and assessment of technical condition of the structure.
Transportation of structures at height
The high-altitude works we carry out also include vertical transport, which takes place without the use of auxiliary equipment such as a crane. This is made possible by specialized equipment designed to pull in and lower structures and large-size loads. The element is not disassembled and the transport can take place at any height and under any conditions, including those unfavorable in terms of technology and location.
Vertical transport capabilities
Our equipment resource and rope access enable us to work at height in places that often limit the use of larger equipment. This also applies to vertical transport, which is used to place a particular element or the whole structure at the right height. Problems may arise in particular in locations where there is little space to use for construction and assembly work. An example is the finishing of the building, carried out after the removal of the cranes. In such situations, our specialists appear with prepared equipment that allows them to vertically transport materials, structures and any other elements to be located at a specific height.
Prefabrication of structures and pipelines in the workshop
We have our own workshop with a large area and modern machine resource, adapted to perform prefabrication of steel structures and pipelines. We deal with the prefabrication of both industrial pipeline systems as well as pipeline installations that operate under water. We manufacture elements and equipment of steel structures, and all elements manufactured by us are protected with an anti-corrosion coating, using various techniques.
What is the prefabrication process?
Before we launch the production works, we prepare workshop documentation as well as select and work out the welding method in detail. We make proper pipe cuts, then we weld and assemble the pipes. Heat treatment is also necessary, thanks to which it is possible to obtain the right temperature value in all elements of which the pipeline consists. In the next stage, measurements and pressure tests are performed, and the finished elements undergo a very detailed quality test. In order to detect possible irregularities, we perform NDT tests, using one method best suited to the specific project. If necessary, the irregularities are removed and the steel surface is then coated with an anti-corrosion coating.