Skip to main content

Estonia deal for HAZEMAG

VKG Kaevandused OÜ ordered a wobbler feeder and a roll crusher from Hazemag for processing oil shale in the Ojamaa Mine, Estonia.
February 13, 2012 Read time: 1 min
The Haxemag wobbler feeder prior to delivery to Estonia
VKG Kaevandused OÜ ordered a wobbler feeder and a roll crusher from 229 Hazemag for processing oil shale in the Ojamaa Mine, Estonia.

The wobbler feeder, which is connected upstream of the roll crusher, screens the fines from the feed material (some 1,000tonnes/hour), and the coarse material of approximately 250tonnes/hour is crushed by the roll crusher to reach the desired particle size of 0-125mm.

By using the wobbler feeder as a primary screen, a smaller type of crusher can be used for the subsequent crushing.

The gap of the roll crusher can be infinitely varied using a hydraulic system. In case a contaminant enters the machine, the movably supported roll moves aside hydraulically, lets the contaminant pass and moves back into its preset position.

For more information on companies in this article

Related Content

  • Qatar quarry boosts output with SDLG wheeled loaders
    February 8, 2018
    A fleet of SDLG wheeled loaders is helping to optimise production at a quarry in Qatar. The three SDLG wheeled loaders are operating long hours and are being used to feed crushing and screening equipment at the site in Qatar. The three SDLG LG958L wheeled loaders have managed to clock 2,000 operating hours in four months at the quarry. The site is owned by Doha-based contracting company Al Maram International, which uses crushing and screening equipment to reduce and sort limestone, primarily for asphalt
  • Poetry in motion
    August 9, 2018
    A heavy-lift operation by Roll-iT using Enerpac equipment delivered a bridge deck - with a poem engraved on the underside - to Antwerp’s old harbour Only when the deck of the new Londenbrug Bridge is raised do travellers see the poem by Antwerp poet Stijn Vranken. It is written large on the underside of the 300tonne prefabricated steel deck. People waiting for a ship to pass the raised bridge now contemplate the poem’s message about ships transporting goods and people to and from the four corners of the
  • New crusher for Russian quarry upgrade
    May 5, 2015
    The largest marble quarry in Russia is now benefiting from the first CI512 Prisec HSI crusher in the country. The machine is working at the Koelga Quarry, the largest Russian marble quarry, and one of the world’s largest. Supplied by Sandvik’s Russian distributor, Quarry Service, the CI512 Prisec operates 24 hours/day and the machine has improved the cubicity of the end product and boosted productivity by up to 50%, while decreasing noise emissions. Koelga Marble is Russia’s market leader in the prod
  • Booming Chinese aggregate demand
    February 22, 2013
    Global demand for construction aggregates is set to increase 5.2% a year until 2015 to 48.3 billion tonnes, according to research by The Freedonia Group in the United States. The same source tips China alone to account for half of all new aggregate demand worldwide in the period 2010-2015. Guy Woodford reports on the growing importance of the Asian aggregates market. China is already the biggest nation for aggregate production and use in the world, and the competition among the giants of aggregate productio