Design, Manufacture and Installation of Theatrical Equipment Worldwide

Tension Floor Blocks

Tension Floor Block
Tension Floor Block
600-11015C100

  • Used as the return pulley for the hand line in J-Guide or T-bar manual counterweight sets.
  • Minimum 40 lb. weight to properly tension the handline.
  • Kick tab permits easy readjustment of the block.
  • ASTM Class 30 grey iron sheave.
  • Sealed precision ball bearings.
  • Steel shoes.
  • Special grooves and shoe sizes available, consult factory.
  • Also known as "Welch" tension blocks, after the J. R. Clancy employee who developed the block in 1925.

Ordering Information
Product Code Sheave Diam Groove Set Centers Wt.
600-11015C75 10" 3/4" 6" or 8" 41 lb
600-11015C75U 10" 3/4" Less than 6" (specify centers) 43 lb
600-11215C75 12" 3/4" 6" or 8" 48 lb
600-11015C100 10" 1" 6" or 8" 41 lb
600-11015C100U 10" 1" Less than 6" (specify centers) 43 lb
600-11215C100 12" 1" 6" or 8" 48 lb
7041 Interstate Island Road | Syracuse, NY USA 13209-9713 | Phone: 315-451-3440 | Toll Free: 800-836-1885
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