Skip to main content

Sandvik pits its QA335 Doublescreen against its QA331 split screen

Seeing was believing for Karl-Werner Bierbrauer, owner of an equipment rental outfit in Germany. Sandvik put on a special demonstration for this long-time Sandvik customer to show the advantages of the new QA335 Doublescreen. Bierbrauer started Bierbrauer & Sohn in Kell, western Germany, in 1985. It now occupies larger premises on an industrial estate in Pommerfeld/Kretz. This was initially in the region of 20,000m2 and included a workshop as well as office premises. In 2008 the site was expanded by addi
June 17, 2016 Read time: 3 mins
An on-site comparison of the QA335 Doublescreen and QA331 split screen
Seeing was believing for Karl-Werner Bierbrauer, owner of an equipment rental outfit in Germany. 325 Sandvik put on a special demonstration for this long-time Sandvik customer to show the advantages of the new QA335 Doublescreen.

Bierbrauer started Bierbrauer & Sohn in Kell, western Germany, in 1985. It now occupies larger premises on an industrial estate in Pommerfeld/Kretz. This was initially in the region of 20,000m2 and included a workshop as well as office premises. In 2008 the site was expanded by adding a 30,000m2 recycling plant and an additional 1,000m2 of workshop.

Karl-Werner Bierbrauer has a longstanding relationship with both Sandvik and its dealer for mobile crushers and screens in the area, TTS Trump Technik Service. This was recently shown when it came to upgrading Bierbrauer’s mobile screening plant. At present the business rents construction machinery with the mainstay being Sandvik’s QA331 mobile three-way split screen.

But Falko Greifenberg and Carsten Trump from TTS Trump Technik Service made Bierbrauer aware of the advantages of using a QA335 Doublescreen. A trial was arranged for  the QA331 to go head-to-head against the QA335.

Before the test began it was estimated that the QA335 would be able to deliver 20% more production than the QA331, with improved material separation and sizing through Sandvik’s Doublescreen concept. On average, the QA331 was producing an average of 160tonnes per hour. The QA335 however was able to deliver 270tonnes per hour – 40% more production.

The QA335 has a 4 x 1.5m Doublescreen box of two high-speed screening boxes with independent drive units. With the ability to adjust the working angles on each screen, optimum screen performance and precise material gradings may be achieved.

The QA335 has also proved highly economical to run with low operating costs due to low fuel consumption. A high level of service and maintenance safety is guaranteed by readily available access and hydraulically operated lifting and lowering applications for a quick change of screening media.

The hopper grid may be operated wirelessly from the loader which results in time-saving and uninterrupted operation cycles. The hydraulic conveyors can produce large product stockpiles.

Sandviks says that the standard fitting of the QA335 makes it is ideal for most users’ requirements, but a variety of optional extras are available.

For more information on companies in this article

Related Content

  • Wider application range for mobile crusher
    November 2, 2022
    Kleemann is broadening the application range and versatility of its mobile cone and impact crushers with the availability of an add-on post screening facility.
  • Versatile materials recycling with Wirtgen
    May 18, 2021
    Wirtgen is now offering a versatile solution for materials in the shape of its latest KMA 240(i) model. This replaces earlier versions of the KMA, providing increased performance and capabilities
  • Play it again, SAM, for Sandvik optimum plant production
    March 16, 2023
    Play it again, SAM. Not the music - just the digital soundtrack to superior crushing and screening performance.
  • Keestrack crushing in all performance levels
    March 2, 2016
    With transport weights of less than 30tonnes are the jaw crusher Keestrack B2 (former Argo), with a jaw width of 1,000mm, and the crusher unit Keestrack R4 (former Destroyer 1011) with add-on screener and oversize material recycler. This also applies to the Keestrack R8 top crusher unit (former Destroyer 1313), that is presented as a highly productive mobile solution in the output range of 450tonnes/hour. “As is the case for all Keestrack crusher units, the heavy construction of the 1,250mm wide roto