Jelsa – Europe's largest quarry
Established in 1987, our company Norsk Stein A/S runs the largest quarry of this type to date.
We invested heavily in the expansion of the quarry in 2009/2010 for a current capacity of 3,000 tonnes an hour; we supply around ten million tonnes of high-quality aggregate for the European market every year. Located in the Jelsa fjord near Stavanger, this top-quality granodiorite aggregate is loaded directly using below-surface extraction at a capacity of up to 3,000 tonnes an hour onto self-unloading vessels with up to fifty thousand tonnes of cargo capacity each. Storage capacity was extended up to 1,000,000 tonnes; that, and the second quay have set the conditions for efficient logistics by minimising waiting times and optimising costs.
The quarry’s deposits have been estimated at around 500 million tonnes; we have an agreement securing mining rights to 300 million tonnes.
The production process begins...
It all begins with a loud bang from the detonation, then dumper trucks take the stone away to the primary crusher. This crusher is one of the largest world-wide, and breaks the stone down by applying enormous mechanical pressure; the crusher also provides interim storage for the crushed material before it’s shipped to our state-of-the-art production facilities, which crush the stone further, and screen, wash and prepare the stone for shipment in standardised quality – with CE certification, of course – to market requirements. Our products are used in the concrete and asphalt industry, railway construction, hydraulic engineering, in road beds, the offshore industry, and numerous other applications.
Find out more about our production processes in this video:
Our products in application
Jade-Weser is the Germany’s only deepwater port, and allows ships with up to 16.5 metres draught to enter regardless of tide as the Jade channel fairway has a depth of eighteen metres. Constructing the port was the project of a century for Bremen and Lower Saxony.
Two offshore wind farms around 23 kilometers north of Helgoland. Eighty wind turbines supply around 360,000 households a year with electricity.
Motorway – Soenderborg
New motorway construction with supply of materials and logistics by Mibau and Stema