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SPIRAL SCREW CONVEYORS WITH WEAR PROTEC­TION OR WITH NON-STICKY LAYER

The mostly harsh condi­tions to which PURATEK spiral conveyors are exposed, requires a special wear protec­tion of sliding insert in the conveying trough and often also wear protec­tion of conveying spiral. Special wear protec­tion has signi­fi­cantly higher resis­tance as the synthetic mate­rial usually used for sliding inserts, such as PE1000 or similar.

Chemi­cally aggres­sive, sticky, or extre­mely abra­sive mate­rials to be trans­ported, must be consi­dered especially.

In close coope­ra­tion with a well-known manu­fac­turer of engi­nee­ring plastics, the polyurethane-based PURATEK-care® synthetic mate­rial was deve­loped. PURATEK-care® consists of two compon­ents: Diiso­cya­nate (hard compo­nent) and polyol (soft compo­nent). During the reac­tion of the two compon­ents, a number of specific addi­tives are added. This gives rise to the outstan­ding proper­ties of PURATEK-care® wear protection:

  • High resis­tance to abrasion
  • Non-sticky proper­ties
  • Easy to clean
  • Sound insu­la­tion
  • Low specific weight
  • High mecha­nical strength
  • High chemical resistance
  • Good sliding properties

In the compa­ra­tive test of PURATEK-care® sliding insert, a service life up to eight times longer was achieved, compared to conven­tional PE-HD-PE sliding insert mate­rial. The excel­lent chemical resis­tance to the vast majo­rity of subs­tances was proven in the labo­ra­tory of our deve­lo­p­ment partner.

PURATEK-care® does not only provides lasting opera­tional relia­bi­lity for your spiral conveyor, but it is also very economical.

PURATEK-care® is an invest­ment in wear protec­tion with a rapid payback effect. PURATEK-care® can also be retro­fitted without any problems to exis­ting conveyors.