A clean solution for dusty business.

The Fendt Katana 65 was named after a particularly sharp Samurai long sword for a good reason. After all, its cutter head processes maximum quantities of forage in a short period of time. As a side effect, the process generates lots of dust, dirt, and particles – which could clog the cooling system. SOLVARO has developed a screen box that reliably protects the field giants from contaminants but allows enough cooling air for the 653-horsepower engine to be drawn in.

Not all screen boxes are alike.

To ensue the maximum air passage for cool air (> 60%), even for long harvest utilisation, we inserted a cone with a Hv 2-2.5 perforation. To prevent a ‘frog’ from forming, a material thickness of 1.2 mm was required. Since a cone of this size can no longer be made from one piece, we fused two perforated blanks using a point welding method developed especially for this application. This solution provides two advantages at the same time. Firstly, the free-air throughput quantity is not reduced, and secondly, the brush on the rotating suction device that cleans the cone is worn down evenly across the cone, even at the welding points.

Field test passed!

After the first prototype was used for over 600 hours in a field test, SOLVARO eliminated the last weak points and implemented ideas for further development. The cone was attached more securely to the frame. The cap that holds the suction device also had to be optimised. Our solution was to double the cap in a sandwich process, so that nothing would be able to shift, even during continuous use. The cone form would multiply any deviating suction device movement by a factor of 15. And to ensure a reliable rust protection after deburring, the entire assembly was coated with KTL and powder to make it ready for immediate installation.


  • Hv 2-2.5 perforated steel sheet - material thickness 1.2 mm
  • Cone form for increased air passage
  • Stable mounting fixture for suction device
  • Deburred, KTL- and powder-coated
  • Ready for immediate installation


The sieve box assembly for Fendt ensures sufficient feed air and protects against contaminants. Shipped ready for assembly.

A clean solution for dusty business.

read more
  • or stay connected


Subscribe to the SOLVARO NEWSLETTER and learn about the latest applications of our technology regularly.

read more

Pimp your production.

Call it customising, tuning or even ‘pimping’ – that’s what we did to turn our new Salvagnini L5 laser system into a top performer for production. You’re sure to love the results!

read more

Collaboration early-on turns good engineering into perfect engineering

The Scandinavian tractor manufacturer VALTRA, who are part of the AGCO Group, has won a number of awards for their current models recently. Tuomas Vanhatalo, Purchaser at VALTRA knows this is no reason to take a rest. Already working on the next generation of tractors he cooperates with suppliers early on in the project. SOLVARO develops and...

read more

Romania’s latest Top Model

In its new generation of agricultural tractors, IRUM is not only optimising the performance of these machines but is also giving them a facelift including SOLVARO ventilation grilles. This approach is sure to appeal to a new young generation of well qualified farmers.

read more

Deep-drawing: reduce costs and raise quality

Deep-drawing perforated components calls for very particular expertise. The possibilities available to those who have technically mastered this art are practically endless. Further development of components, tool management and production planning offer great potential for cost-efficiency in the production of parts.

read more

Declaring war on particulate matter

Air pollution caused by exhaust gas is an especially acute problem in towns, cities and built-up areas. Our partner Eminox offers a variety of products that already almost entirely eliminate harmful substances from exhaust gas.

read more

Anything but without a plan: our management system is certified according to DIN EN ISO 14001.

In order to achieve objectives, not only intentions but also a plan is needed. This also applies to environmental measures. The fact that we are consistently implementing our environmental protection plan and that we place great emphasis on the efficient use of natural resources is now confirmed by the certification of our environmental management...

read more