Transparency for more zest for life
The KELLER minimal windows® design sliding system underlines the clear line of modern architecture and fulfils any wishes for living areas that are generously flooded with light.
KELLER minimal windows® is a virtually frameless sliding system with universally insulated aluminium frame profiles into which very large panes of glass are set. The peripheral frame profiles can be fully installed into the wall and ceiling and also into the floor for barrier-free access.

Functionality adds to the quality of life
The extreme ease of movement of the optimised stainless steel roller / rail system enables the comfortable, manual movement of large glass areas.   The high-performance carriages - a decisive design detail - guarantee high operational reliability and durability.  On request, concealed electric drives and locks can be used to increase operating comfort according to the individual system configuration.  A unique feature is that several leaves with a total weight of up to 2000kg can be silently moved by just one electric drive

Resources and energy efficiency
2-pane insulation glass with a maximum glass thickness of up to 32mm are normally used in KELLER minimal windows®.  
In comparison to conventional sliding systems, the proportion of frame material in a 10m² KELLER double glazing system (4.000 x 2.500mm) is ca. 42% lower.  The material of the system weighs only 58 kg without glass and meets the highest static stability requirements.

The system offers all conceivable sliding variants extending up to 4-track systems and corner-post-free internal and external corners. The sliding leaves can be manufactured up to a height of 4 m and with a leaf area of up to 8.5 m² (fix leaves up to 18 m²).  Leaf weights of up to 500 kg can be used.  This is made possible in particular by the specially developed carriage technology, while retaining the slender profile design.