Claro shaftless spiral screws & trough liners are backed by over 30 years of research & applications experience. Whether for a new system or for a spare parts retrofit, Claro provides spiral configurations that maximize conveyor system performance & spiral life. Let us improve the performance of your current shaftless or shafted auger conveyor system.

Claro supplies both shaftless & shafted augers, however, for a description of why well-engineered shaftless spiral conveyor systems are often a better technology choice over other approaches, please see Claro shaftless spiral conveyors – design features & advantages.

Custom Spirals of Superior Abrasion-Resistant Material

Shaftless Spiral Conveyor Liners – All Types incl. Special Material Products
Design features & advantages
  • Claro shaftless spirals are precision-manufactured from special micro-alloy steel or stainless steel that is deformation-, abrasion-, & acid-resistant.
  • Complex double, triple, & quadruple profile shaftless spirals/screws – main, insert, backing & edging for optimal spiral rigidity, weight, & process performance.
  • Can be fitted with brushes, special wear protection coatings such as Hardox, and paired with low-friction Claro trough-liners to suit specific application requirements.
  • Special heat-resistant spirals for incinerator and other extreme-heat applications available.
  • Variety of liners including specially-developed low friction liners for wet applications that last 10 – 15+ years.
  • Liners that provide longer life & easier replacement than Hardox bar—no welding or grinding.
  • Simple quick-clip approach to liner installation—no glues, screws, or welding.
  • Prompt delivery of spirals & liners.

We welcome your enquiries. For more information, please contact us at