The roller sugar mill tree is one of the most important parts of the sugar mill industry. This is because they are used for the separation of juice containing sucrose from sugar cane. This juice extraction is achieved by squeezing the prepared cone through two rollers. It is for this criticality and importance that it requires careful production and testing in order to meet all the stringent requirements in order to be used in environments of continuous wear and fatigue.
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Materials used
The material of the sugar mill tree is decided taking into account its strength and rigidity. The conditions under which these trees operate vary over a wide range. This makes it imperative that the bearing material used to make them have certain desirable properties. These include factors such as:
A low melting point and softness
Mechanical resistance
Corrosion resistant
Low elastic modulus
High thermal conductivity
Other economic considerations
However, it is not possible to achieve all of these factors to some desirable extent in a single sugar mill tree, so a compromise must be made regarding some attributes. The commonly used materials are:
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Aluminum-based alloys
Lubrication
The sugar mill shafts do not have the ability to turn fast enough to promote the formation of a hydrodynamic film of lubricant between the bearing and the pin. Therefore, they require constant hydrostatic lubrication. This is done by providing lubrication to the bearing at the required pressure. Care must be taken to ensure an adequate supply of lubrication under such conditions. This is especially true of the location of the grooves and oil supply holes. Therefore, considering the accurate production standards and testing requirements, the sugar mill trees are considered an important part of this industry. After all, the main reason for the sugar cane industry is to extract the maximum amount of juice per ton / ground cane. This is achieved by ensuring that the right sugar mill tree is used in the right place.
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