Vertex™ Pre-Tensioned Spring Balances

The Vertex spring balance range includes both Pre-Tension and Wind-Up Spring Balances.

Pre-Tension Spring Balances are particularly suited to larger opening sash windows and are manufactured bespoke to each window, taking into account the weight, glazing, size and profile to deliver a perfectly tailored solution.


  • All spring balances available in Tilt-In and Non-Tilt options
  • For windows between 2kg and 45kg in weight lengths from 200 to 1,500mm
  • For smaller windows between 200mm width and 1800mm high
  • All balances in the Yale Vertex™ range are available in white, brown, black and grey tubes
  • Pre-Tensioned balances are supplied in either Ø17.0 mm or Ø19.0 mm tube subject to sash weight


  • 10-year Mechanical Guarantee
  • BS EN 1670:2007 Grade 4 (240hrs. NSST)
  • Endurance tested to 20,000 cycles

Included within the Yale Lifetime Security Guarantee*

*Terms and conditions apply

Material Specification:

  • Reinforced Nylon
  • Music Wire
  • Aluminium 6063
  • CS70 Steel
  • PVC (unplasticized)
  • ST 304
  • Steel
  • Acetal


  • Yale Spring balances are designed to require only minimal maintenance. Balances are best protected by being operated at least once a month. Should balances not be operated for long periods, particularly lower sash balances, then apply a light coat of high-quality water-resistant multi-purpose greases to the extended helix rod routinely to ensure optimum balance performance. Tubes can be cleaned with a damp cloth.