Finlay's milestone machine for Thomas Armstrong

Written by: Finlay Plant Northern | Published:
The new Terex Finlay 390 Hydrascreen at work in Thomas Armstrong's Overby Quarry site in Wigton, Cumbria

The Thomas Armstrong Group has taken delivery of its 25th Terex Finlay machine from Finlay Plant Northern.

A new Terex Finlay 390 Hydrascreen is the latest addition to the fleet, which is being used by the Thomas Armstrong Group to process sand at its Overby Quarry site in Wigton, Cumbria - one of the two sand quarries the company operates in the north west.

In a partnership spanning 35 years, the Thomas Armstrong Group has worked closely with Finlay Plant Northern – part of the Finlay Group of companies .

The Thomas Armstrong Group's quarry manager, Martyn Cueto said: “Some of the machines we’ve had from Finlay Plant Northern now are over 15 years old and they’re still in operation, seven days a week, 10 hours a day."

With a fuel efficient diesel-hydraulic system, the 390 has a large capacity 14ft loading hopper and a remote-controlled tipping reject grid.

Featuring a robust 12’x5’ screen box on every deck, it is processing 110 tonnes of sand from the quarry an hour, producing two different products.

The first, an oversize product, is fed to a washing plant to create a single sized aggregate and the second is a 3mm top-quality natural plastering sand.

The sand and aggregates produced at the Overby Quarry are sold to builders’ merchants across the north of the country.

Charlie Nairn, managing director of Finlay Plant Northern, said: “Thomas Armstrong’s don’t require a three-way split for this application so the Terex Finlay 390 Hydrascreen is the perfect solution for them.

“The screen box can be set at variable amplitudes and screen angles, meaning it has the capability to process sand to an accurate size, ideal for what it’s required to do at the Overby Quarry."

To see the Terex Finlay 390 Hydrascreen in action visit

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