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Integrated solution for OJSC Uralasbest

Uralasbest OJSC has been developing the Bazhenovskoye field for 130 years. The company is one of the largest producers of chrysotile in the world and a leader in the production of non-metallic building materials.

High-quality crushed stone of all fractions and crushed-sand mixtures are produced here.

 Most of the gravel and road ash are sold to other regions and are used in the construction of cars and railways. In addition, gravel is used in the quarry itself: for filling roads and other tasks.

The Uralasbest plant produces over 5 million tons of gravel a year. Previously, the rock mass from the quarry was sent by rail to the factory, where crushing was carried out in three stages. After crushing at the factory, some crushed stone in the required fractions was also sent back to the quarry by rail for filling roads.

In 2019, a new crushing and screening plant went into operation at the industrial complex, designed by specialists from Sever Minerals. The first stage of crushing is now carried out directly in the quarry, which avoids the additional costs of transporting crushed stone and already at the first stage obtain a product of higher quality and optimal fractionality.

Optimisation of rock aggregate production at OJSC Uralasbest by installing a new crushing and screening unit



One-stage plant for producing crushed stone of three fractions: 0–20, 20–40, 40–70 mm

Project indicators
  • 600
    tonnes per hour
  • 15
    pieces of equipment

The company faced the task of replacing an obsolete and inefficient crushing unit that was built on the facilities of an asbestos factory. It was necessary to reduce the cost of transporting the rock mass by preliminary crushing and allocation of classes of finished rock aggregate for the quarry’s own needs.

The Sever Minerals team proposed a solution based on the Metso C130 jaw crusher, the Metso VF561−2V vibrating grate feeder and the Metso CVB103P screen. The equipment was installed directly at the rock extraction site, in the quarry, which allowed to improve preparation of material for further processing on the existing production line. Quarry scat, which was previously transported away for processing along with the extracted rock, is now separated on the spot and used in the quarry for road building. This helps to streamline the crushing process, reducing dusting and the costs of transporting the scat back to the quarry.

The heart of the installation is the Metso C130 crusher, which uniquely designed prefabricated frame, adjustable discharge slot and easily serviceable bearing assemblies gives it unrivalled reliability. This ensures the equipment a high level of operational readiness and functional maximum capacity.

This integrated solution includes engineering, the supply of all necessary equipment and metal structures, and installation supervision and commissioning by Sever Minerals service engineers.

The installation has now exceeded the contractual technical indicators and reached a capacity of up to 600 tonnes per hour.

  1. Feed Material: hard to break.
  2. Abrasiveness: average.
  3. Material moisture: low.
  4. Achieved capacity: 600 tonnes per hour
  5. Equipment: Metso VF561−2V vibrating grate feeder, Metso C130 jaw crusher, Metso CVB103P screen, conveyers, electrics, automation, steel structures, storage hopper, control room