The best screening solution 

QA451 is the largest and the most prominent of all the Premium range mobile tracked screens. QA451 has been designed to work in closed circuit with Sandvik’s tracked crushers. Hydraulically folding fourth product conveyor features both hydraulic raise lower and hydraulic slew functions to ensure that its feed position is optimal for other machines of the set. However, QA451 is also capable of operating as an independent screening and stockpiling unit allowing four differently sized products to be produced, removing the fifth, oversized product from the hopper grid.

Features and advantages

• High productivity delivered by large screening area – triple deck 6 x 1.5 m with Doublescreen system.
• Excellent stockpiling capability with integrated extended hydraulic conveyors.
• Hydraulic folding oversize conveyor which features both hydraulic raise and lower, and hydraulic slew functions eliminating the need for a crane on site and minimising relocation time between sites.
• User friendly control panel with sequential start-up for ease of operation.
• Large volume hopper with remote controlled hydraulic tipping grid.
• Hydraulically folding walkways to facilitate repairs and maintenance.