Services offered by Unic Rotarex®

We offer a full range of services. Starting with designing the structures, producing and finally assembling them. In addition to our main services we offer complementary services such as tuition for assembling the structures, consultancy services for understanding the technology and assembling assistance for those in need of support.

Services offered by Unic Rotarex® - The Lightweight Steel Structures Factory

Design for steel structureDesign

Computer assisted design services which comply with Eurocode 3.

The architectural project

The building permit and your needs and possibilities are the indicators that determine the shape and size of the construction.

In the first place, after you receive the building permit, an architect will interpret it and will tell you what you can do.

In any case, when you contact an architect, it is better that he is in touch with us. We can agree upon the desired sections and also we can alert him abut the particularities of our constructive system. This way you can avoid the problem of designing twice.

The technical documentation

After you have an architectural project agreed with us, we draw up the technical documentation. We do it through our own engineers but also trough collaborating companies. They take into account the regulations of the Eurocode3 legislation, the construction and quality law and the specific loadings of the area in which you are about to build.

We can directly draw the technical documentation or we can contact design partner companies. We receive an original copy with signatures from engineers and from the MLPAT Verifier.

The MLPAT verification

Legislation requires MLPAT verification for the technical projects. Due to this we offer MLPAT verification services, but you can also do it yourself. For those who want to make the MLPAT verification themselves, we provide computational notes in order to understand how we make the static calculation.

Assembling plans or execution details

Along with the structure you will receive the assembling plan (printed and also in electronic format). The plan represents the execution details. The plan is simple and explicit, on anyone’s behalf.

The assembling plan includes a technical memo, detailed drawings for the structural elements and plans for assembling the structural elements into a load-bearing structure.

The 3D plan

For a better understanding of the assembling we dispose the 3D viewer.

In order to familiarize yourself with the viewer and to understand how easy it is to identify any elment and its position in 3D, download the viewer and install it on your computer. Then download the model file and open it in the 3D viewer.

3D viewer tutorial  will show you how to zoom in and out the construction, how to exclude elements or floors and we guarantee that everything will become clear and easy to understand.

Production of light steel structureProduction

We offer services with one of the most performant production lines existing on the market today.

Production process at Unic Rotarex® Factory, short movie.

Production of the profiles

We produce “C” and “U” profiles of galvanised steel sheets from Voestalpine Austria with operations which allow different pairings. In order to form, cut and print the assembling codes on the profiles we use a latest generation numerical control machine. On each profile the machine prints the assembling code (on a side) and the batch number of the steel and the name of the producer (on the other side). Due to this we will know at any time who is responsible for each profile piece.


We pack the profiles in manipulable packs, taking into account the structural elements. A structural element can contain one or more packs.

The workers tie the packs with sealed PVC stripes. They manipulate and store them without the possibility of extracting elements from the pack. In this manner we deliver sealed packs. The carrier then takes them. The customer receives the packs from him. This operation is based on the packing list. The manufacturer automatically prints the packing list after scanning the barcodes on the labels.


We stick a label on each pack. It contains the identification data of the seller and of the buyer. Manufacturing date information, the number of the pack and the number of ties of the pack sealing. The label also contains a barcode which eases the inventory and the delivery.

Preassembling in factory

At the client’s request, we can preassemble in factory all or a part of the structural elements. The quality assurance process enforces the supervision of this operation. In the production report we mention who and with what screws (from which batch) assembled each structural element. Preassembling is done with self-drilling screws from Grabber USA, the best screws of this kind found on the market.

Storage and delivery

We store the packs or the preassembled structural elements in clean and dry places, until delivery. We load them manually or mechanized in suitable transport means. The delivery is based on the packing list. We scan the bar code on each package or structural element. On delivery we verify the bonds of the packages and if their number corresponds.

Assembling of steel structureAssembling

The seller or the buyer assembles the structural elements as a load bearing structure of the construction on the site, on the concrete foundation. Self-drilling screws fasten the elements together. The assembler inserts them using a threaded machine according to the assembling plan and the technical documentation. For the positions of the 2D elements that are not clear enough we use the 3D plan.

A team of 4-6 workers can easily assemble the structure. The vast majority of items are light, easy to handle and fix on positions.

The grip on the concrete foundation is done with anchors according to the plan.

A rubber sealing tape is fixed between the concrete and the sole of the structural element.

The plans are so explicit and the structural elements are so regular that they can be assembled without measuring tools.

We will achieve a modular structure, perfectly aligned on all levels. In this way any construction team can easily plate it with prefabricated elements.

The tools you need for the assembly are few and cheap. Any person with a minimum of technical knowledge can assemble by himself if he / she participates at the tuition course.

transportation of steel structuresTransportation

We offer transportation services in order to deliver the structures. The transportation can be done by us or by you, according to our agreement.

The delivery term (according to INCOTERMS) is established in the offering process. This is done according to who makes the assembling. If we make the assembling, the delivery term will be DAP (Delivery At Place). In case you will assemble, the delivery term will be FCA (Free Carrier). In this situation we can intermediate finding a transportation mean. The order and the payment is done by the buyer.

In all cases, the transportation  is done with off-the-shelf trucks, suitable for the order, or, in sea containers. The means of transportation must be clean and dry, free of traces of substances that could corrode the structure during transport.

The carrier must be insured and present the CMR (carriage letter) at loading.

Rotarex Structures Assembler tuition courseTuition

We offer tuition services in order to teach the assembling of Unic Rotarex® structures.

The tuition course is free. Anyone who wishes to lear how to assemble our structures can participate. The ones who wish to receive the Rotarex Structures Assembler certificate must participate at a 3-5 days session on site, until the correct acquisition of the skills required by the Rotarex Structures Assembler craft.

Find details about the tuition course on the company’s website. Read more…


Consultancy services for a better understanding of Unic Rotarex® technologies.

By phone

Receive free phone consultancy. From Monday to Friday between 09.00 – 15.00 GMT +2, except legal holidays, summer and winter vacation.


You can write to us and ask questions which can help you understand our technologies better. On the subjects that are not well understood from our website you will receive a written answer (except legal holidays, summer and winter vacation) or you will be called in order to receive the answers.


Asembling assistanceAssembling assistance

Assembling assistance services, offered to our clients which did not manage to assemble the structure. In this purpose, an Unic Rotarex® specialist may come to your location and help you finish the started works.

Please do not confuse the assembling works with the assembling assistance. The Unic Rotarex® specialist is a coordinator. He can help you get out of a difficulty. If you started assembling with an incapable team, you will have to ask for assembling, not for assistance.