heroal S 77 SL

Innovative lifting-sliding door for large-scale transparency

The aluminium lifting-sliding system heroal S 77 SL is an innovative, design-oriented lifting-sliding door for patios, balconies or conservatories. heroal S 77 SL combines large, frameless fixed glazings with moveable monorail sashes, and serves as an almost invisible link between indoors and outdoors. At the same time, this lifting-sliding door offers best insulation values. Additional highlights connecting the interior with the exterior are a corner designed with fixed glazings, and a corner solution that can be opened – both create a unique living experience. With perfect insulation values (Uw ≥ 0.86 W/m2K) and certified burglary resistance (resistance class RC2), heroal S 77 SL is a high-end, aesthetically appealing and at the same time functional system. As all sliding and lifting-sliding doors by heroal, heroal S 77 SL is also available as a barrier-free version.

  • Frameless glazing of the fixed element
  • All-glass corners, opening or fixed
  • Burglary resistance up to RC 2

    Product Details

  • Prospects

  • Dimensions & drawings

    Visible profile width [mm]

    Leaf profile

    System properties

    Glass filling strength [mm]
    Max. leaf weight [kg]
    300 - 400
    Max. leaf heights [mm]

    Sectional Drawings

  • Performance characteristics

    RC 2 Resistance to burglary
    9A Resistance to driving rain
    > 0,86 Heat insulation (Uw in W/m2K) / Profile width [mm]
    > 2,1 Thermal insulation [Uf in W/m2K] / Profile width [mm]
    1 Operating forces
    4 Air permeability
    1 - 3 Soundproofing class
    C3/B3 Wind resistance


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heroal systems stand for a variety of designs

Colour is one of the most important elements of design, both in interior design and architectural design of the building shell. The versatile coating technologies and colour spectrums offered by heroal provide for the best variety of designs in highly weather resistant quality. In addition to this great variety, heroal offers a bending and edging service for round arches and curved elements for windows and doors, as well as an extensive range of fabrics for heroal zip and textile screens.

The heroal promise

When it comes to how we live and work, the most important thing is having choices. heroal knows that. As a family-run company with more than 140 years of experience, we believe that when it comes to quality, there are no compromises. That is why our products give you a way to create ideal solutions for nearly any requirement. As a technology leader, we believe that quality means more efficiency, more reliability and more performance – solutions that are "SIMPLY. BETTER."

  • over 3,500 specialist partners worldwide
  • products with tested quality
  • family-run company with a long tradition
  • made in Germany
  • personalised design
  • comprehensive range of services
  • superior technical solutions