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Mobile grinding machines: putting simplicity in complex mining process

By Ntsako Khosa

Mobile grinding machines are widely used in the mining of rocks such as limestone, granite, basalt, diabase, andesite, ore tailings, river pebbles, and artificial sand stone chips.

Mobile crushers/grinders offer a great deal of convenience and flexibility to any mine. Its flexibility and mobility help save many infrastructural and relocation expenses. The crusher conducts on-site material crushing and promotes the mining of raw materials when the surface is removed. This significantly reduces the cost of shipping materials.

Mobile crushing equipment includes a primary and secondary plant crushing and screening station, conveyor belt and other components. A crushing station is an independent working unit that has the ability to assume any responsibility.

Features of a mobile grinder/crusher

The modern mobile crusher is designed and packaged as an entire unit. This eliminates the complexity of infrastructure sub-assembly and ancillary facility installation work, thus reducing the hours involved in material consumption. It has a reasonably compact size (depending on range chosen). The overall crushing process provides a more flexible workspace.

It reduces material handling costs because it works on a “close process” principle, meaning material can be broken or crushed on the field, thus eliminating transportation of material for crushing.

A mobile crusher is designed to meet the user’s requirements. It is configured to provide a simple, low-cost combination of units for coarse crushing, fine crushing, screening and other mobile uses.

Sandvik offers a wide range of mobile crushers and screens that are either tracked or wheeled, and includes jaw crushers, impactors, cone crushers, screens and scalpers for mining applications. Its mobile units are set to meet high demands for mobility, both on site and on the road. Also available on crawlers, they are compact, stable and of low weight. The different units are compatible with each other, which makes it easy to combine two, three or more units, depending on the fractions required.

Sandvik has developed revolutionary machines with the highest levels of agility and mobility. With these feats of technology, it is able to boost client productivity with the revolutionary Doublescreen system, the patented Prisec™ impact chamber, as well as the innovative Hydrocone design.

Kinds of crushers

The mobile jaw crusher is one of the most comprehensive crushers on the market. It provides unrivalled productivity during applications while increasing operator comfort and efficiency. Mobile jaw crushers come in different ranges from 35–135 tonnes (or more). Heavy-duty jaw crushers are designed to produce exceptional output levels and reduction ratios without sacrificing efficiency or productivity, no matter the application. The Sandvik mobile jaw crushers come with a number of innovative features such as dust-proof components, wide maintenance platforms, as well as the Sandvik automated control system. Their mobile crushers also have a range of feed openings and maximum feed sizes to help meet any size-reduction exercise.

These user-friendly features all help ensure that the client gets the maximum return on investment. All jaw crushers are designed to offer optimal throughputs while reducing operating costs. It is also designed to offer the operator an increased level of comfort and safety, giving ultimate peace of mind throughout the entire process. It’s this dedication to detail that consistently makes its QJ341 mobile jaw crusher one of the best-selling tracked crushers in the world.

Mobile cone crushers are designed to provide the ultimate versatility, crushing aggregate to almost any size. Sandvik’s hydraulically adjusted Hydrocone crushers are as robust and easy to service as they are powerful — the Hydrocone has made this range one of the most versatile and trusted crushers on the market.

Mobile cone crushers provide high-quality materials and excellent shape when it comes to secondary and tertiary crushing. Tried and tested solutions that meet any size-reduction challenge and the flexibility to ensure each model in the range can crush almost any application.

Sandvik’s hydraulically adjusted Hydrocone crushers are robust and have an easy to service design with minimal operator intervention, making them not only versatile but also easy to maintain. The vast range of chamber options and eccentric throw adjustments make this one of the most adaptable and trusted cone ranges. Offering large reduction ratios with minimal fines production, the mobile cone crusher range is the ideal solution for secondary and tertiary crushing. They have the “S” type cones that have the capability to accept a feed size up to 90% larger than current standard cones and it can even be run as primary crushers on gravel applications. High mobility and quick set-up times enable clients to start their projects on time, every time.

The mobile impact crusher from Sandvik revolutionises performance and versatility in mobile impact crushing. The crusher offers unparalleled levels of control, flexibility and productivity. This unique concept enables a single unit to operate in either primary or secondary mode. To maximise the bottom line, all of its impact crushers have features that optimise throughput and minimise spillage. Sandvik uses a direct drive system for optimum fuel efficiency and low operating costs, and includes user-friendly features for ease of operation. The hanging screen option available on the impactors has been designed to maximise productivity and profitability, giving accurately sized products for immediate use.

All mobile crushers provide exceptionally reliable throughput and productivity, all while providing the highest levels of safety and comfort for the end user. Engineers and experts within the industry understand how crushing equipment needs to work in harmony to provide the best possible end product.

The industry faces many challenges when it comes to crushing, and many experts are continually developing and improving crushing products to obtain the best performance from the equipment.

Mobile crushing equipment needs to work in harmony to provide the best possible end product.


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