Tuesday, 23rd September 2008
Magherally Quarry in Northern Ireland is the latest recipient of Finedoor Screen Technology. Owned and operated by Gibson Brothers the quarry is located at Banbridge in County Down. Operating an on-site asphalt plant the company contacted Finedoor with a view to replacing an aged asphalt screen located within a Titan 200 asphalt plant.
Following discussions and subsequent site survey Finedoor received an order for a 5.0m x1.8m - 3.5 deck asphalt screen.
The new screen was manufactured from 10mm thick rigid side plates with heavy-duty bolted in deck frames. Inclined to 12 degrees the screen features 2-self aligning spherical roller bearings and was supplied with a pumped oil lubrication system. This system maintains a constant oil temperature of approximately 60° passing through the bearings and is directly linked to the plant plc.
Fitted with full width camber, side clamp screen decks and coil springs mounting to isolate vibration the screen also has removable imbalance weights. An alloy steel shaft operating at 960 rpm provides reliability and strength. Screen drive comprises of 18.5kW motor complete with drive pulley, vee-belt drive complete with drive guard and a spring loaded motor base all mounted on a new sub frame.
Installation and commissioning was carried out to an agreed schedule over the summer holiday period to limit production downtime.
Justin Gerring, Quarry Manager of Gibson Bros. commented; "The change over went very smoothly, with the Finedoor team of experienced fitters working together to overcome any unforeseen problems. After a few minor adjustments and tweaking of the lubrication oil system, the screen is doing its job well and I look forward to many years of service from the machine."
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