Dongcheng DZZ02-200S Diamond Core Drill.

Dongcheng DZZ02-200S is a professional-grade, high-capacity diamond core drilling machine built explicitly for heavy-duty construction, plumbing, and electrical installation projects. Powered by a robust 3500-watt electric motor, it provides the immense torque and sustained power necessary to cut clean, precise holes up to 200 mm in diameter through exceptionally dense materials such as reinforced concrete, stone, brick, and asphalt. The machine is engineered for wet-drilling operations, featuring an integrated water-source connection that continuously cools the diamond bit to extend its lifespan while simultaneously suppressing dangerous airborne dust. For operator safety and machine longevity, it is equipped with a built-in mechanical safety clutch to handle sudden bit jamming, alongside a portable residual current device (PRCD) to protect against electrical faults on the job site.