Operating Principles of drum for concrete mixers

Operating Principles of drum for concrete mixers: the mixing drum transits by the friction of the drive of rubber tug, so the friction drum concrete mixer produces small noise and is suitable for using in the civil engineering construction. However, the drum for concrete mixers adopts the hoisting way to feed materials, so when the charging hopper is rising, it is forbidden to work or walk under the hopper; lay some straw bags under the foundation pit to be used as the pillow of hopper. When the concrete mixer lands and approaches the ground, stop for a while and land the concrete mixer to the bottom to avoid the damage of hopper because of the high landing speed; when the foundation pit needs cleaning or operators check under the hopper, keep in contact with operators of drum for concrete mixers and start cleaning and checking after locking the hopper tightly with chains.
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