A breaker is a powerful percussion hammer fitted to an excavator for demolishing concrete structures or rocks. It is powered by an auxiliary hydraulic system from the excavator, which is fitted with a foot-operated valve for this purpose. Additionally, demolition crews employ the hoe ram for jobs too large for jackhammering or areas where blasting is not possible due to safety or environmental issues.
- New Mexico State Highway and Transportation Department - Hoe Ram
- Association of Equipment Manufacturers (2010). Carrier Mounted Hydraulic Breaker: Safety Manual for Operating and Maintenance Personnel.
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