Rock Products , March 1st, 1998 by Bob Drake
Using a hydraulic hammer instead of explosives to free rock from the quarry face occasionally has been reported in some European operations but is virtually unheard of in North America. However, as hammers and carriers increase in size and durability, sound attenuation is improved, and residential and business developments encroach upon urban quarries, there may be a few applications where hammers work.
According to Krupp Bautechnik, a German manufacturer of hammers, field results reveal five advantages to using a hammer for primary breaking.
1. Selective extraction Quarrying methods using explosives typically mix together varying mineral grades within a deposit. This can reduce quality or make the stone unsuitable for some applications. Hydraulic hammers allow selective quarrying of individual rock layers, possibly providing higher-priced products.
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Construction & Demolition Recycling, March-April, 2005 by Jackie Gubeno
As the concrete recycling industry grows, breakers and hammers are becoming more and more important on job sites. With many companies choosing to recycle concrete on site, breakers have become an integral part of many recycling operations, as well as popular tools for demolition contractors.
Recyclers rely on breakers and hammers to size slabs of concrete down to fit into crushers for the aggregate market as well as to separate steel from concrete structures for the booming steel scrap market.
Whether used for sizing or separating, breaker attachments continue to play an important role in the changing demolition debris and concrete recycling industries.
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Hydraulic
Hammers (Rock Breakers)
