HD series of single axle boiling type mixer using single axle for mixing, when it mixing it will make the materials boiling from the left to the right and from the right to the left, and the caking materials will be break up by the high speed blade The Dry Mortar Mixer comes with high speed mixing, high mixing uniformity, high air tightness, easy to operate and also easy for maintenance. The mixing blades are making by durable wearing proof alloy; the online sampler will allow us to check the materials evenness anytime; the observation door comes with safety detector, it will automatically cut off the mixer electric power source when the observation door is open, to protect the safety of the maintainers