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Shaftless Spirals & Liners

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Claro shaftless spiral screws and trough liners are backed by over 25 years of research and applications experience. Whether for a new system or for a spare parts retrofit, Claro provides spiral configurations that maximize conveyor system performance and spiral life. Let us improve the performance of your current shaftless or shafted auger conveyor system.Claro supplies both shaftless and shafted augers, however, for a description of why well-engineered shaftless spiral conveyor systems are often a better technology choice over other approaches.

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  • Higher fill rates (no central shaft to take up space) means smaller, more cost-effective, and lower hp systems
  • Material does not get stuck or wrapped around a central shaft as in shafted systems i.e. effectively handles wet, slushy, stringy, dry, sticky, abrasive, corrosive, plug-forming, bridging, volatile, odorous, powdery, inconsistently sized, and/or hygienic materials without plugging, bridging, or scaling
  • No intermediate or end-bearings = higher trough fill rates and positive direct-feed connections that eliminate plugging and material hang-up, especially in difficult applications. Also, no maintenance or lubrication of bearings
  • Compact, versatile conveyor-train arrangements available in vertical, inclined, and horizontal configurations with pushing or pulling drives
  • Lidded, dust- and odor-free, hygienic systems unlike belt conveyors
  • Deformation- and abrasion-resistant special micro-alloy or stainless steel shaftless spirals / screws that are much more resilient than the welded flights of shafted conveyor systems
  • Can be designed to meter-out, dewater, compact, extract and separate, cut, shred, pulverize, cool or heat, blend, coat, lift, out-load, and transport a wide variety of materials including sludge, grit, and screenings
  • Large selection of long-lasting replacement spirals and liners including complex double and triple profile shaftless spirals / screws main, insert, and edging designed to suit project requirements
  • Specializations include: municipal sewage screenings and grit handling; dewatered sludge handling; fully-automated material outloading, including a proprietary fully-enclosed bin loader; lime-stabilized sludge handling; aerated grit tank extraction spirals new and retrofit of clam-and-shell and traveling bridge systems; inclined and vertical conveyors; pulp and paper and food processing applications; recycling facilities; and especially challenging material handling applications
  • Complete systems for sole-supplier responsibility