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

  • HAZEMAG's Italian job
    February 6, 2012
    The Di Maso quarry company in Italy has invested in a HAZEMAG crushing concept, and in addition to the rugged primary impact crusher with its active hydraulic control system, a wobbler feeder has been added to relieve the load on the crusher and to ensure uniform feeding. The Type AP-PH 1414 impact crusher's latest active hydraulic control system offers a facility where the impact aprons are locked in position during operation to guarantee a uniform, high-quality product. However, if tramp metal enters the
  • Austrian 'first' for Hazemag
    February 6, 2012
    Hazemag has supplied what it claims is the first semi-mobile impact roll crusher plant in Austria to Zementwerk Leube, one of the country's leading companies in the building materials industry. The compact, semi-mobile design 600-800tonnes/hour limestone crushing plant includes the integration of a feeder grate as a primary screen. "Even with high throughput and the large feed size of up to 1.2m the end product had to have a final crush size of 0-250mm with a minimal amount of fines production in the final
  • Effective crushing and screening key to quality
    February 22, 2012
    Efficient crushing and screening processes help produce quality products, Mike Woof reports. Having an efficient crushing and screening operation is crucial to the cost-effectiveness of a quarry as well as providing the best quality product. The crushing circuit is a key component in any quarry with the right selection of equipment as well as effective maintenance important factors in optimising performance.
  • HAZEMAG combines roller screen/feeder breaker
    January 6, 2017
    HAZEMAG has realised an intelligent, efficient, compact secondary crushing preparation plant with a minimised overall height for the production of 1,500tonnes/hour of lignite following an order last year from P.T Indonesia Pratama, Indonesia. It was the customer’s wish to get an intelligent crushing solution and a low overall height of the preparation plant. HAZEMAG combined a roller screen with the field-tested feeder breaker HFB 0714, thus offering screening and crushing in one unit, which has dimensions