5/8” Spirals

Caldwell’s 5/8” Spiral Balances: ALUMA-TILT® & SPIREX® are made for tilt, sideload and non-tilt residential & commercial windows.
Caldwell’s 5/8” Spiral Balances succeeds AAMA Class 2 and has a weight capacity of 4-80 lbs.

Product Features

  • Provides consistent, smooth uniform operation throughout the full travel range of the sash
  • An economical solution for heavier sash weights, up to 80 lbs tandem, in typical 6.25 jamb pocket designs
  • Broad, adjustable weight ranges providing:
    • Reduced inventory
    • Fine tune window performance
    • Field adjustable
  • Caldwell’s Music Wire Springs offer more consistent and dependable output
  • Laser welded aluminium tubes, providing structural strength and durability
  • ALUMA-TILT®: Tilt, Non-Tilt or Sideload Application: carrier dependent
  • SPIREX®: Non-Tilt and Clip On