1.Shaft end sealing adopts pressure difference and multi-heterodyne sealing technology to extend shaft end's service life. 2.National patented taper mixing arm which can easily disassembled. 3.National patented monitoring system to control every part of mixer, such as hydraulic pump, gearbox's oil temperature, oil level, which helps user see its condition directly and clearly. In this way, the machine's service life can be extended substantially. 4.Advanced hydraulic pressure system is adopted to open and close the discharging door. Under the situation of sudden power failure, the manual pump can be used to open the discharging valve for emergency discharge to avoid 3615*3385