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Linear plain bushes in the yoghurt packaging industry

The Indian company Sri Lakshmi Engineering Works, which was involved in the filling and sealing of yoghurt in this application, was previously facing challenges due to rust problems and the need for lubrication in their previously used products. Our colleagues at igus® India convinced the customer by presenting service life calculations and providing numerous application references, especially with regard to washing operations. To solve the rust problems and eliminate the need for lubrication, linear drylin® bushings from were igus® introduced in the R machines.

Profile

What was needed: drylin® R linear plain bearing bush 
Requirements: No external lubrication should be flushed away during the cleaning process and corrosion should be prevented by the regular cleaning cycles
Industry: Packaging industry
Success for the customer: Rust-free, lubrication-free and corrosion-free drylin® linear technology

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Components of a packaging machine with guides and spacers made from igus components in the yoghurt packing process.
Components of a packaging machine with guides and spacers made from igus components in the yoghurt packing process.

Problem

The machines from Sri Lakshmi Engineering Works, which are intended for packaging in the dairy industry, required thorough cleaning with cleaning agents and water. A particular problem arose with the external recirculating ball bearings, which required external lubrication. The lubrication was washed away during the regular cleaning cycles, which led to corrosion and impaired the efficiency of the bearings. The need for external lubrication brought further challenges. As the products being processed are foodstuffs, there was a risk of grease or oil coming into contact with the products during the lubrication process, which could lead to contamination.

Solution

To ensure that there were no problems with grease contamination after packaging the yoghurt pot, our colleague from India visited the customer. He analysed the application and suggested the drylin® R Linear Bushing RJUM-02-20. Service life calculations were carried out and many application references were shared, especially with washing processes during packaging. The customer was convinced and an offer was prepared on the same day. The drylin® R linear plain bushings fulfil FDA conformity with stainless steel and are therefore specially designed for the cleanroom. In cleanrooms, it is crucial that all components are lubrication- and corrosion-free - a specification that all our products fulfil. In addition, the linear plain bushings offer outstanding precision, which is achieved through adjustable bearing clearance on the sliding elements. This enables fine adjustment to fulfil the highest accuracy requirements.

Machine component with steel rods and guides on a yoghurt packaging line.
Machine component with steel rods and guides on a yoghurt packaging line.

Product used

drylin® R Linear bushing RJUM-02-20

  • closed anodised aluminium adapter
  • short type
  • Sliding film material: iglidur® J
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drylinR plain bearing isolated on a white background.

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