primary breaker

primary breaker

[′prī‚mer·ē ′brāk·ər]
(mechanical engineering)
A machine which takes over the work of size reduction from blasting operations, crushing rock to maximum size of about 2-inch (5-centimeter) diameter; may be a gyratory crusher or jaw breaker. Also known as primary crusher.
References in periodicals archive ?
A feature of the standard FDB19 is its non-fail safe operation, ideal for primary breaker installations or those that are unmanned or prone to supply interruption.
Tenders are invited for Daily cleaning of Conveyor 34,35,36,37 and primary breaker, old and new tippler control room crusher D of CHP-II at STPS,Sarni.