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
Related products
Series77t Assembly Tools
Tools to easily pull the the Series 77t bobbin or stirrup into the carrier.Tilt Carriers
Caldwell offers a wide range of Tilt Carriers with solutions for all pocket sizes.APEX®
An extended travel Block & Tackle Balance for sideload applications: Caldwell’s APEX® balance is available with multiple end guide configurations, for different jamb sizes.
