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AVL Tension Box

AVL Tension Box for Sectional Beam

The AVL Tension Box is used for warping the sectional beam with short or long warps. Used in conjunction with a spool or cone rack and the AVL Track & Mount System, the tension box provides excellent tension for your warp as it winds onto the beam.


  • Unique heddle system that is used for conveniently putting a cross in each section.
  • Mates with the AVL track and mounting system allowing it to be slid along the width to the exact location desired.
  • Tension is established by running yarn over/under dowels.
  • The dowels are mounted in vertical slots to allow tension adjustment.
  • The tension box is provided with one 8-dent input mini-reed and two (8 and 10-dent) output mini-reeds, mounting hardware and instructions.
  • 2-year AVL warranty. 
  • Extra heddles for the Tension box 

Standard vs Heavy Duty?

  • A standard tension box uses hardwood doweling for the pegs used to establish tension on the yarn.
  • Stepping up to the heavy-duty tension box gets metal pegs for added wear resistance and strength. The heavy-duty tension box is used primarily by a rug and IDL weavers.