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

  • Asphalt plant innovations unveiled
    May 8, 2019
    New asphalt plant technology is being introduced by a range of manufacturers to meet varying needs and increase system versatility.
  • Wirtgen KMA 220 passes with flying colours at Cologne/Bonn Airport
    July 25, 2018
    A Wirtgen KMA 220 produces hydraulically bound base using a mix-in-plant process for recycling at Cologne/Bonn Airport. With the mobile KMA 220 mobile cold recycling mixing plant from Wirtgen, road construction materials can be recycled or upgraded in just about any location. This avoids countless transport trips and is also sustainable and environmentally friendly. Finally, it is extremely economical, according to Wirtgen. This became clear from a job at Cologne/Bonn airport at the end of 2017. The plan
  • Crushing system boosts quality sand production
    February 16, 2012
    A new VSI crushing system is helping Tarmac boost sand production at a key quarry in the UK. Manufactured sand is now being produced at the Tarmac Blashford quarry where a new VSI from Sandvik Mining and Construction is delivering product of high quality, specifically sized and shaped for construction purposes.
  • Asphalt plant innovations
    June 14, 2019
    New developments in asphalt plant technology are offering better cost efficiency and materials quality for the industry