Series 77t
A traditional Block & Tackle Balance for tilt applications: Caldwell’s Series 77t balance is available in both with bobbin or stirrup options and Screw or Hook mounting options.
Series 77t succeeds AAMA Class 2 with a weight capacity of 2-45 lbs and length of 6-46 inches.
Product Features
- Designed for all Tilt windows: residential or light commercial
- Caldwell’s Music Wire Springs offer reliable and consistent operation
- Positive lock, drop in system compensate for extrusion toleration and allow for tandem applications
- Available in various colors and compatible with jamb covers
Series 77t bobbin
Series 77t bobbin
Series 77t stirrup
Series 77t stirrup in carrier
Hook or Screw mounting options
BALANCE SIZE .605” x .545” TRAVEL (EXTENSION) Equal to channel length TRAVEL (RETRACTION) .12” min. SASH WEIGHT CAPACITY 2 lbs - 45 lbs EGRESS CAPABLE Yes BALANCE LENGTH (MIN) 6 inches BALANCE LENGTH (MAX) 46 inches BALANCE TYPE Tilt CHANNEL PROFILE Square MOUNTING METHOD Hook or Screw Mount CORD TERMINAL 15C04 COLOR Mill, White, Tan FINISH Galvanized or Painted BOX QUANTITY 50
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