With a mechanically irreversible action the Screw jack system, coupled with the Mini or Maxi operator,is best used for rooflights or sloping rooflights where the full wieght of the window is being lifed by the user. Due to its screw in screw design it allows for a considerable reduction in the amount of force required to lift the window. Available in White and Brown.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that LP Window Controls is consulted before specifying.
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Uniclass (?)
Pr_30_36_59 Opening hardware
LP Window Controls
Unit 11, Springvale Industrial Park, Bilston, West Midlands, WV14 0QL