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Caldwell Folding Window Opener High-level Operation

Caldwell Folding Openers
£9.40 ( £11.28 inc vat)

Availability: In stock


To order a box, please order 50


Caldwell’s high-quality aluminium folding window openers (also known as over centre cam stays) deliver a flexible, durable, easy-to-use restricted opening and ventilation system for a range of casement configurations, primarily top- and bottom-hung windows. Openers can easily be linked in a twos or threes to accommodate virtually any window width. Sometimes called the ‘pork chop’ opener, the design ensures the operating eye stays inside the building even if the window is fully open. This makes it ideally suited to high-level pole operated applications. Hand operation is not recommended with this style of component because fingers could easily become trapped.

For the fabricator manual & order form, please see the product downloads section below.

Screw Fixings

Frame Fixing
Plate Height

Sash Fixing
Plate Height

110150mm0mm (Flush)25mm25mm13mm
111150mm5, 7 or 16mm25mm25mm10mm


  • Available in various step sizes and vertical screw centres (see table)
  • Gives a sash movement of 150mm
  • Resilient anodised satin silver finish
  • It is recommended that Folding openers are positioned between 100 and 200mm from the corner of the sash to ensure system integrity.
  • Quality manufactured to British Standard BS EN ISO 9001: 2008
  • Corrosion resistant to BS 7412: 2007
  • Open/close cycle tested in excess of 100,000 cycles
  • Suitable for use on most timber, PVCu, aluminium, steel and composite windows.

Additional Information

Box Quantity Various - select product options to display box quantity
Part Code CFO11000 | CFO11105 | CFO11107 | CFO11116 | CFO13116 | CFO19116