Skip to main content

Sophisticated screening

Designed for recycling applications, the Sandvik QA331 is a three-way split screener developed from the successful QA330. The machine offers greater screening capacity than its predecessor but retains the durable construction and suits applications in recycling and contracting.
February 15, 2012 Read time: 2 mins
High screening efficiency is claimed for Sandvik's new QA331 machine, which retains the durability of the earlier QA330 model it replaces but now offers increased throughput
Designed for recycling applications, the 325 Sandvik QA331 is a three-way split screener developed from the successful QA330. The machine offers greater screening capacity than its predecessor but retains the durable construction and suits applications in recycling and contracting. Increased productivity and accurate screening are said to be key performance features. The 4.27m x 1.52m, two bearing screen box features an increased 6° screening angle built into its bottom deck. This feature, coupled with the larger screening surface area, and increased throw on the screen box, boosts operating efficiency and capacity. The machine has a 7m3 hopper and a radio controlled reject grid and can be used for working at the quarry face, inner city development or recycling centre. It has a heavy-duty chassis that ensures durability in tough operating conditions, while it has been designed to minimise fuel consumption and operating costs.

Other features of the QA331 include its novel folding access walkway fitted as standard around the screen box, which provides the operator with access for maintenance. The main conveyor has a 1.05m, heavy duty belt, runs on tracks that are 500mm wide to cope with varying ground conditions and the machine can be guided into position using a remote control box for ease of mobility.

For more information on companies in this article

Related Content

  • New tunnelling technology offering greater efficiency
    January 4, 2017
    Tunnelling technology is seeing major developments that will boost construction efficiency - Mike Woof writes Both in tunnel drilling and TBM systems, new machines are now being built that offer major gains in performance. Sandvik is introducing a number of major new models developments to its tunnelling drill range. Three new tunnelling jumbos are now available that suit different drilling requirements, the DD422iE, DT912D and DT922i. The firm says that its advanced DD422iE rig offers major advantage
  • Concrete competition
    February 13, 2012
    The concrete paving market has provided stable ground for existing players, though key market developments are in hand. US manufacturers have long dominated the concrete paving sector with well-known firms such as GOMACO, Guntert & Zimmerman, Power Curbers, Power Pavers and Terex all being based in the US, while German firm Wirtgen is Europe's leading contender in this market. However there is some jostling for position in the concrete paving sector, with some of the players looking to enter new segments. T
  • Italian stabilization efficiency from FAE
    March 18, 2016
    Italian firm FAE continues to develop its recycling technology, now offering two stabiliser packages for large and small operations. The smaller SSM and SSM/HP units operate with working depths down to 400mm. Meanwhile the larger SSH unit has a working width of 2.5m, suits towing machines with power outputs from 120-300kW, and can handle working depths down to 500mm. A key development is the firm’s innovative automatic injection system (AIS), which now offers a more efficient and effective mixing of wate
  • Developments in asphalt paving machines increases competition
    April 10, 2012
    With the asphalt paving segment split broadly into two methods, American or European,. it is no surprise that manufacturers. from these countries have dominated the market for some years. An interesting development in recent times has been seen with various European firms developing asphalt pavers to suit North American needs, including BOMAG, Dynapac and Vögele. Caterpillar and Volvo by comparison both offer both European and US-style pavers, with separate model ranges that have been developed over many ye