Blog: Aggregate Matters
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A simple and cost-efficient way to improve operator safety at the business end of quarry operations

Primary crushing is a rough, tough process where tons of feed material are crushed every minute into manageable sizes ready for further processing. Just as with every other part of a quarry operation, safety is paramount, particularly when dealing with blockages that may slow down or even stop the primary crushing process. A remotely controlled rock breaker is by far the safest way to deal with these blockages and get the production process running smoothly again.

With large, cumbersome rocks, heavy machinery, dust, and noise to contend with, safety must be a top priority for quarry managers at the critical primary crushing stage of the aggregate production process. Blockages caused by single oversized rocks or coarse or uneven material becoming jammed together interrupt the flow of material and therefore have a knock-on effect on later processing stages like secondary and fine crushing.

In order to get things moving again while significantly reducing the risk to the health and safety of personnel or damage to equipment, quarry operations need a safe and controlled way of dealing with these blockages. The equipment used for primary crushing is extremely powerful – no surprise given the nature of the material it has to deal with – and may be difficult to access in a safe manner in the event of a blockage. There is also the risk that materials can be ejected back out of the feed cavity during a build up or blockage, causing serious injury.

How to keep your site personnel safe?

Remote-controlled rock-breaker equipment such as the Metso rock breaker offers a safer way to deal with this kind of problem. First of all, it removes the need for personnel to be in close proximity to the primary crushing equipment; instead, they can control the rock breaker from a safe distance using the radio-based remote control system while still maintaining visual contact with the blockage.

By minimizing exposure to noise and dust and the potential risk of being struck by debris, using a rock breaker significantly improves the health, safety, ergonomics, and comfort of the primary crushing station as a working environment. What’s more, rock breakers are far more accurate than potentially dangerous manual methods with their inherent safety risks, meaning that the material feed can be back up and running again as quickly as possible – with your site personnel safe and sound.

Metso rock breaker solutions are complete functional packages for rock breaking in the primary crushing stage of aggregate production, with every component engineered to meet the tough requirements of this demanding application area. They are optimized to work with Nordberg® C Series jaw crushers to maximize the productivity of the entire primary crushing station.
To find out how Metso rock breaker solutions can support the safety and productivity of your operation, visit the rock breaker product page on our website.


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Tuomas Takalo

Product Manager, Aggregates Equipment Business Area, Metso

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