Six Common Troubles of Concrete Mixers (2)

2. Mixing cylinder abnormal noise
Mixing cylinder producing shrillness abnormal noise often is due to the foreign material between the blade or side scraper and pot wall, and pot wall fricative noise. The foreign material will increase mixing friction to make mixer shaft running not well. This time, you should stop machine and take out the foreign material, then adjust the gap of blade, scraper and pot wall according to requirement.
3. Reducer noise
There are two severe reasons about the reducer internal noise, one is something inside the reducer and because of hitting or fierce rub to producing noise; the other one is bearing failure, due to rub aggravated in joint to producing noise during moving. In the process of blender working, once foreign material drops in the reducer, it will influence reducer regular work and big harm to reducer interior parts. Severe cases may result in damage to parts or scrap. When there is a foreign material in reducer, it needs stop machine to check, clear of foreign objects, repair or replace the damaged parts.
If the concrete mixer bearing damages, its friction in the joint will increase, and bearing will be affected and make a big noise. In this time, the noise generated is often cyclical, because of the rotation of the bearings is uniform, when it goes to the damaged parts will produce noise, so the noise will have a certain frequency. If the bearing damage, it needs to replace with new bearings.