JK730-2 crawler mounted automatic rod exchange DTH drill rig is a hydraulic DTH drill rig. It is equipped with automatic rod changer for rod storage, changing and connecting automatically, as well as hole loc.
[pdf] It is a brand new compressor range and it utilises a low pressure and high pressure dry screw airend. Each airend is individually driven by a variable speed, permanent magnet synchronous motor, offering exceptional levels of efficiency versus traditional oil-free technology.
[pdf] Replace screw air compressor lubricating oil by stopping the machine, draining old oil, cleaning pipelines, adding new oil, and replacing the oil filter. Check oil level after starting.
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