Sandvik QA442 offers an enhanced 2-deck Doublescreen solution

More productive and flexible

The QA442 features Sandvik Doublescreen technology, it utilizes two high velocity two-deck inline screens with equal size screen decks, each providing 9 m3 / 100 sq. ft of screening area. The primary screen performs as a fines extractor, whilst the secondary screen performs as a grader. Two processes combined on one plant, offering exceptional flexibility, excellent separation, accurate grading and massive throughput.

Both primary and secondary screening angles can be adjusted independently, leading to greater material control, greater adjustability, increased accuracy and higher screening efficiencies. Each screen deck features end tension screen media using Sandvik’s unique mesh tensioning system. This means faster screen mesh tensioning and removal when you need uptime.

Our new range of Sandvik WX rubber media combines the high accuracy of wire screens, but with the durability of rubber offering up to 10x longer wear life* and up to 50% faster installation time compared to wire mesh*. Having equal size panels also means the screen media’s interchangeable between decks.

The QA442 screen drives have been reconfigured to include removeable flywheel weights, making it easier to fine tune each screen to your particular application needs. Also, the oversize chute now includes three blending gates making it possible to blend over-size with mid-size product to meet demanding aggregate product specifications.

More sustainability

The QA442 also offers a hybrid ‘e’ drive option with electric plug-in, which allows you to choose your preferred energy source - electric from an upstream crusher/external source powering the electric-hydraulic drive OR the on-board HVO/diesel engine-hydraulic drive.

The QA442’s engine speed and hydraulics have been optimized to reduced energy wastage, lower fuel consumption, minimize operating noise all whilst meeting the latest emissions regulations. In addition, its hydraulic oil change intervals have been extended from 2000 to 4000 hours meaning up to 50% less hydraulic oil is consumed during the machine’s life (subject to oil sampling), saving you time, money and lowering your carbon footprint.

Summary of key features:

• Hybrid “e” drive lets you choose your most economical and efficient energy source
• World class Doublescreen design with independent screen angle adjustment for greater material control, increased accuracy, higher screening efficiencies and hydraulic screen separation for faster screen media changes
• Featuring two 2-deck inline screens with equal size decks, each providing 9 m3 / 100 sq. ft of screening area
• Choice of screen media to suit a range of applications including Sandvik WX media offering up to 10x longer wear life
• Lower environmental impact due to lower running speeds, reduced fuel consumption, less operating noise and lower emissions
• User friendly PLC control system with sequential start-stop for speed and ease of set-up
• Connected to Sandvik My Fleet with 7-year data subscription, 24/7 fleet management, geo-fencing and remote support
• Security+ extended warranty & service package for higher uptime and peace of mind

*Test results and calculations are to be considered as results reached under certain and controlled conditions. These test results and calculations should not be treated as specifications and Sandvik does not guarantee, warrant or represent the outcome of test results or calculations in any or all circumstances.

For further information please contact:

Sandvik Rock Processing Solutions, Mobile Crushers and Screens
Melissa Baker, Marketing Communications
Tel: +44 (0)7725 259151 Email: melissa.baker@sandvik.com