QMS provide washing screens for two of Scotland’s leading aggregate groups.

Leith Aggregates and Tillicoultry Quarries both took delivery of SVI wash screens in December.
Leith Quarries based in Aberdeen required a screen to replace a worn out powerscreen. QMS were able to custom design a replacement engineered to fit the existing structures, saving valuable time and money.

The screen supplied SVI-F02M 1.52 x5.0m 2 deck was manufactured to reuse the existing Scandura Module 600 polyurethane screen media.

The screens are of bolted construction for ease of maintenance and incorporate replaceable bolt on feed and discharge lips. The specification included a support frame complete with integral rubber lined belly chute and twin discharge. Support springs, spring bases, pivoting rosta motor mount, motor, v belt drives and pulleys. The screen was manufactured in 6 weeks and installed and commissioned by QMS engineers.

Louie Gray (Project Manager, Leith Aggregates) commented: “The screen box frame was designed to be supported from existing steelwork thus retaining original platforms and handrails. The simplicity of the bearing units allows them to be removed from the screen box and refurbished in workshop conditions or having a rebuilt bearing unit in stores for a quick change over. In general it is a very quiet and smooth running machine.“

Tillicoutry Quarries required not only a screen but also a complete modular steel support structure, rubber lined discharge chutes, a 20m long x 750mm wide discharge conveyor with walk way and a 10m3 feed hopper with a 900mm wide belt feeder.

The slightly larger screen 1.83x5.0m 2 deck screen was configured to take wire mesh on the top deck and Isenmann WS85 Polythurethane modules on the lower deck. Fully galvanised walkways completed the specification.

Again the plant was installed and commissioned by QMS service engineers.
Andrew Shakeshaft (Area Production Manager, Tillicoultry Quarries) commented:
“The process has provided the perfect replacement for the old screen and comes with much improved access facilities. Its new orientation now provides a facility to process the remainder of existing reserves and also future new reserves over many years to come. It has delivered what we expected. QMS engineers working closely with TQ staff on site decommissioned the old plant and re installed the new during very adverse wintry conditions safely to achieve an all-round excellent end result.”

All QMS SVI Inclined screens come fitted with modular vibrator units. The extremely compact and interchangeable units make maintenance far easier compared to a conventional solid shaft design. With two bearings per vibrator pod (4 per screen) they offer exceptional long bearing life. The 2 pods are connected through the centre of the machine using a cardan shaft. This can easily be disconnected during maintenance. The vibratory mechanism is located at centre of gravity, giving circular motion in all points of the screen.

QMS offer a service exchange on Modular Vibrating Units in the event of a breakdown.

QMS range of aggregate processing equipment includes jaw & Cone crushers, Inclined & Horizontal screens, Conveyors, feeders, complete modular plants. 100% manufactured by QMS in the UK All equipment is backed up by exceptional customer service and parts support.