Commissioning of the CFW4000 production line

We are proud to hand over the most advanced CFW 400-4000 production line available on the market to our client. Congratulations to our Technobell team and the client’s personnel for a successful start-up, during which a massive 4 m in diameter and 13 m long GRP pipe with almost 20 tons was produced. We wish to our client a lot of success.

If you would like to become a GRP pipe producer, Technobell is the right partner. Should you have any questions, please feel free to contact us.



Continuous Filament Winding steel band

Did you know that to set up a mandrel of 4000 mm, about 1300 meters of steel band have to be wound?

During pipe production, the steel band can stretch as much as 1000mm due to heat generated by the process. In order to compensate for the elongation and shrinkage of the steel band, an automatic tensioner is installed. The latest automatic tensioner developed by Technobell, together with the warning system, enables our CFW machines to run for weeks without stopping.




Congratulations to our Tecechnobell team in Saudi Arabia and our team in Slovenia for the successful start-up of the CFW1200 production line.

Special thanks to our client and its staff for their support and professionalism.




Technobell CFW400 discs

Did you know that the CFW4000 machine can accommodate any disc size from 400 to 4000 mm? The production of mandrel discs requires extreme precision and a skillful operator.

Aluminum beams supporting bearings are placed on the mandrel discs. The complete set of aluminum beams hold approximately 20,000 bearings. Only high quality bearings are used to ensure a long working life of the aluminum beams. Consequently, the machine operators can have less production stops.



Technobell Technology - PHTM4000

A major manufacturing and logistics challenge in the last CFW4000 project were activities regarding the preparation of individual phases with the aim of ensuring safe work and timely delivery of equipment.

The CFW4000 Pipe Hydro Testing Machine (PHTM) stands out due to its extraordinary dimensions, both in size and weight.

The manufacturing of the approximately 11-metre-long traverse was performed on one of the biggest items of machining equipment. The assembling took place in front of the hall using a 50-tonne crane. The PHTM really looks impressive.


Technobell Technology - CFW4000

Congratulations to our Technobell team for another successful completion of a CFW production line.

The giant CFW4000 machine capable of producing GRP pipes up to 4m in diameter and the auxiliary machines were designed, constructed and packed in record time and are now on their way to the new owner.

As usual we built-in all the experience and knowledge accumulated so far to deliver a product that is easy and safe to use, has unparalleled production capacity and will serve its purpose for decades to come.

We look forward to the first GRP pipe to be manufactured with the most advanced CFW4000 production line available on the market.


Technobell - Camplate for CFW4000 machine

Update on CFW4000 project – 2.

A suitably shaped cam plate is an important part of a Continuous Filament Winding machine. This cam plate for the CFW4000 machine with a diameter of 4.3 meters and weighing approx. 4 tons was annealed for 30 hours, in order to remove internal stresses and to strengthen it. Afterwards the surface was treated with a triaxial drilling milling machine.




Technobell CFW4000 basic construction- frame and mandrel casing

Update on CFW4000 project – 1.

It took us four working days to assemble the basic construction of the CFW4000 machine: the frame and the mandrel casing. When assembled, only the CFW4000 machine will be 7.6 meters high, 10.5 meters wide and 31 meters long. Due to the machine dimensions our partners built a special bridge crane which extends to only a few inches below the roof of the production hall.



Technobell - CFW production line components

Technobell has just started assembling a new CFW production line for the manufacturing of GRP pipes. It will be a giant amongst CFW’s production lines made from more than 300 tons of steel and other various components. To assemble it, we will need an impressive 4 cubic meters of bolts and nuts. The longest piece is 11 meters long, the largest piece is  4.5 meters in diameter, and the heaviest piece weighs 24 tons.

Due to its exceptional dimensions and weight, the CFW production line represents a challenge in terms of manufacturing and logistics – a challenge we are all proud of.


Technobell - CFW production line components


Technobell's Modular CFW 300-1200 machine

Extreme engineering put into practice. The Technobell modular CFW 300-1200 machine for GRP pipes production divided into easy to assemble modules perfectly fits into standard marine containers with obvious but precious benefits for the end-user:

  • machine installation and start-up time reduced almost to zero,
  • possibility to relocate the machine near project sites without any hassle.