• Please accept our apologies, the Caldwell datasheets and technical manuals are currently under review. For technical support please contact us at 01902 366800 or email us at oemcustomerservice.uk.opening solutions@assaabloy.com

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  • Caldwell Spiral Balance Range

    The Caldwell range of wind-up balances for sash windows
    allow window fabricators to provide exactly what is required for
    mechanical assistance, longevity & economy.

    Spiral balances are single sprung and have been designed to
    allow vertical sash windows to slide easily up & down and hold
    stationary, as required.

     

    The Caldwell comprehensive Spiral range of spring balances
    includes, Spirex, Spiralift and Alumatilt, Alumatilt Heavy Duty.

    • Range includes 14mm Aluminium Mill Finish outer tube and 16mm  white PVC or Brown PVC outer tubes
    • Suitable for Aluminium, PVCu, Timber and windows
    • 5 year mechanical guarantee
    • Spiral balances are colour coded with white, blue, red and black couplings that determine the weight/ length combination

     

    • Spirex balances for sashes weighing from 1kg to 13.5kg and in length 9 inches to 60 inches.
    • Spiralift balances for sashes weighing 14kg to 18kg and in length 9 inches to 60 inches
    • Alumatilt for sashes weighing from 1kg to 13.5kg and in length 8inches – 60inches
    • Alumatilt Heavy Duty for sashes weighing from 14kg to18kg and in length 8inches to 48inches

    Specifications:

    • 10 year mechanical guarantee

  • Caldwell Ultralift (UL6) Spring Balance

    Ultralift sash window balances are double sprung, offering increased efficiency and a smoother operation. The double-sprung design offers the end user up to 70% increased mechanical advantage compared with standard operation. 

    Ultralift balances can be specified for use in both tilt-in and standard sash window designs

     

    Features:

    • The range includes double-sprung and single-spring options 
    • Suitable for sashes weighing between:
      • ​Standard: 4.5Kg – 27Kg
      • Heavy Duty: 27.5Kg to 31Kg
    • Tilt and non-tilt sash options
    • Supplied in 17mm diameter white PVC-U tubes as standard
    • Brown, Grey, Cream, and Black clip-on tubes available -  when using clip-on tubes please allow for an additional 2mm to the overall diameter
    • Suitable for PVCu, Timber, Aluminium and Composite Windows

     

    Easy identification 

    Ultralift balances are stamped with the part number, date of manufacture & sash weight they are designed to carry. This can be found on the balance tube near the top fixing location. 

     

    Specifications

    • 10 year mechanical guarantee
    • Tested to AAMA class 5