Screen enhancements include an 11 % longer bottom screen deck to extract more fines. Featuring independent screen angle adjustment, the primary screen can be independently adjusted from the secondary screen, allowing operators to optimize their throughput, screening efficiency, and product gradations. The primary screen performs as a fines extractor, whilst the secondary screen performs as a grader. Two processes on one plant, offering exceptional flexibility, excellent separation, accurate grading and massive throughput.
Sandvik offer hybrid ‘e’ drive with electric plug-in which means you can choose your most economical and efficient energy source. The QA452 provides a lower environmental impact due to reduced fuel consumption and the latest powerpack onboard offers less operating noise and low emissions. In addition, the hydraulic system has been enhanced to reduce energy wastage, and its hydraulic oil change intervals have been extended from 2000 to 4000 hours meaning up to 50 % less hydraulic oil is consumed over 10 000 hours of machine usage (subject to oil sampling). Saving time, money and lower carbon footprint.
The primary screen can also be hydraulically separated to gain better access for maintenance & screen media changes. The addition of a new oversize cross conveyor means greater oversize material extraction. This cross conveyor can also be reversed, to allow the plant to function like a two-deck screen with oversize and mid overs discharged together.
Each screen deck features end tension screen media using Sandvik’s mesh tensioning system. This means faster screen mesh tensioning and removal. The new range of Sandvik WX rubber media combines the high accuracy of wire screens, but with the durability of rubber offering up to 10 x longer wear life and up to 50 % faster installation time compared to wire mesh. In this context, the test results and calculations are to be considered as results reached under certain and controlled conditions. Having equal size panels also means the screen media is interchangeable between decks.
The QA452 comes with Sandvik’s My Fleet telemetry system & 7-year data subscription as standard. This offers 24/7 fleet management, geo-fencing and remote support. As safety is no.1 priority, several features have been included as standard to improve operator and onsite protection. Dust suppression spray bars, onboard water pump, safety pull cords and lighting mast are now fitted as standard for extra peace of mind.
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 & patent pending hydraulic screen separation for faster screen media changes
Choice of screen media to suit a range of applications including Sandvik WX rubber media offering up to 10 x longer wear life
Featuring two triple deck inline screens with equal size decks, each providing 9 m3 of screening area.
Rear folding mid fines conveyor, easier to load for transport
Lower environmental impact due to reduced fuel consumption, less operating noise and low 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