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

  • Innovations in aggregates production will boost quarry efficiency
    March 16, 2016
    New innovations are underway that will help optimise rock crushing and screening operations and boost quarry efficiency overall - Mike Woof writes. Quarrying is a tough industry that provides enormous challenges to equipment providers as machines and technology have to be rugged, durable and productive. Cutting the cost of production while optimising output has been a major target for suppliers, with new technologies playing an increasingly important role. Taking the long view with regard to increased qu
  • Kieswerk Kohler solves fines problem with M2500 from CDE
    September 26, 2013
    Following installation of the M2500 mobile washing plant, Kieswerk Kohler is said to have addressed the issues caused by excess fines in the material at their quarry in Engen / Welschingen, southern Germany. The solution offered by CDE has also enabled the production of an additional sand product which the company is now able to offer customers. The raw material processed by Kieswerk Kohler at the site contains a large proportion of material smaller than 250 microns. With the crushing and screening proce
  • Going mobile in Mexico
    February 13, 2012
    Mexico-based Grupo Pinfra was one of the country's first aggregate producers to invest in mobile crushing and screening equipment. Twenty years on, the company is still confident that mobile equipment is key to meeting demand and has just expanded its fleet.
  • Keestrack’s new hybrid mobile crusher
    April 30, 2018
    The new Keestrack B3e jaw crusher is said to be highly versatile and easy to transport between sites. This diesel electric B3e jaw crusher is a hybrid variant of a proven model from the firm aimed at recycling. The new model retains the advantages of the original track-mounted design but is also said to offer lower running and maintenance costs. The machine is designed to operate either separately or as part of a crushing and screening chain. The firm claims that the design is compact for its output and p