System Identity

The SL55 Infinity is a top-notch proposal for structures in absolute minimal design. All design elements strive to convey the message of simplicity, allowing for light, form, material, space, and nature to provide the very best of living conditions. With SL55 Infinity, carefully applied minimalist principles increase the degree of freedom enjoyed by developers and architects to make attractive and effective buildings so that people can live in greater comfort, more style, and infinite views.

Distinguished by its three "hall of fame" features, the narrow face widths, the integrated frames, and the flush fitted tracks, the system impresses for the maximum transparency, light penetration, and uncompromising comfort. High-quality selected components and systems’ design merge in an intimate symbiosis to produce a fine system that ensures maximum thermal and sound insulation potential at any location. Every detail of the SL55 Infinity has been designed with a single goal: to make a statement by means of performance. For the demanding homeowner or architect who wants the latest in modern design and ultimate performance, SKYLINE SL55 Infinity is the perfect solution.

System Characteristics
  • Minimal design for modern architecture
  • Impressive transparency and maximum light penetration
  • Exceptional thermal and acoustic insulation
  • Wide open spans maintain the sleek minimal look
  • Expanded range of tracks fulfil countless architectural desires
  • Possibility for floor-to-ceiling and wall-to-wall frames
  • Designed handle and multi-point locking system
  • Roller system that allows smooth sliding and operation
  • Ideally suited for luxury residential and commercial environments
Key Points
System Ability
System Configurations
System Technicalities

Technical Data

Exterior Aesthetics

Flat / Minimal with concealed frames and flush-fitted threshold

Track Editions

Hidden sash / Visible sash / Flat track / Low flat track / Hidden track

Frame Depth

150 mm

Sash Depth

55 mm

Face Height (Flat track edition)

41 mm

Visible Aluminum Face Width (Interlock)

25 mm

Visible Aluminum Face Width (Meeting Stile)

60 mm

Maximum Sash Surface

Up to 10 m² per sash

Maximum Sash Weight

Up to 400 kg per sash

Sealing Method

Perimetrical, with 2-level of silicone treated weather strips


ALUMINCO Multipoint locking, ALUMINCO Roller system

Glass Type


Glass Thickness

From 37.5 mm to 41.5 mm

Type Of Thermal Insulation

Polyamides 18 mm

System Performances


Uf values from 1.4 W ⁄ (m²K)

Air Permeability

Class 4

Water Tightness

Class 6A

Wind Load Resistance

Class B3


45 dB