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Today, we will continue to talk about how to buy a satisfactory concrete mixer. Last time we pide concrete mixer into two main categories: forced type concrete mixer and self-loading concrete mixer. Today we will go on talking about self-loading concrete mixer. Self-loading concrete mixer 1.Working principles of self-loading concrete mixer Self-loading concrete mixer has a very long history. In early 20th century, it had been put into use. The working principle of self-loading concrete mixer is quite different from forced type concrete mixer. Many mixing blades are soldered to the wall of the drum. When it starts to work, the drum revolves around horizontal axis. The mixing blades fixed on the drum will lift the materials needed to be mixed to a certain height. Then the materials fall down through the gravity. This concrete mixer operates repeatedly in this way to mix concrete. 2. Advantages and disadvantages of self-loading concrete mixer This kind concrete mixer has simple structures, little wear and it is very easy and convenient to maintain. Furthermore, it adapts materials well and has a relatively small volume. Therefore, it applies to produce plastic concrete and damp-dry rigid concrete. What’s more, this concrete mixer has wheels and it's very convenient to move. However, self-loading concrete mixer also has some disadvantages. Due to it works through the rotation of drum; its stirring intensity, rotating speed and volume has been limited. It leads to lower efficiency than forced type concrete mixer. Therefore, this kind concrete mixer can be used in a relatively small construction site or is for personal use. So, just think over which concrete mixer is more appropriate to you. Choose a best one for your project.
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