Sewn-Folded Bellows

Sewn-folded bellows are manufactured from a single sheet of thermoplastic-coated or elastomer-coated fabric, which is pleated and then sewn to a PVC stiffener at every fold. They are available in any flat-sided form and the stiffener profile can be made to match any way or rail geometry.



  • Cover shape is maintained throughout range of motion
  • Excellent protection for linear bearings and other precision equipment
  • Ideal for applications requiring very large or rigid covers
  • Diverse material selection – we are able to use thermoset elastomer-coated materials that cannot be welded
  • Alternative stiffener options available for increased flex life where work-hardening is a concern


  • Aluminized Polyester
  • Aluminized Fiberglass
  • Silicone/Fiberglass
  • Goralon® (CSM)/Polyester
  • Chloroprene/Nylon
  • Butyl/Nylon
  • PVC/Nylon
  • Nitrile/Nylon