Keller KELLER minimal windows® highline

Aluminium double glazed window

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Ulflingen, Luxembourg
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KELLER minimal windows® highline


Aluminium double glazed window



Aesthetics, combined with high performance features communicate the clean minimalism of our system glass façades. All elements are intrinsic components in modern architecture.
The system glass façade profiles between the two storeys comprise insulated, concealed prone aluminium frame profiles and are ideal wherever minimal profile facing widths and maximum window height are required.
The flush-fitting or offset-surface grass facade can be combined on request with slimline design sliding doors and is the perfect solution for high-quality double-glazed residential and commercial buildings.

Further info from manufacturer on KELLER minimal windows® highline
Further details
Design features
• Complete integration of the all-round, thermally isolated frame profiles into the floor, wall and ceiling is possible.
• Barrier-free floor area, manufacturable without threshold, system configuration in 2 tracks.
• Mitred, all-round outer frame provided with 25 mm insulation bars per track with screwed corner connectors. Leaves are structurally glued to the glass all round.
• Self-centring, single-track, stainless steel castors integrated in the leaf and guided by high-alloyed, stainless steel running rails of the lower outer frame profile.
• Substructure with PVC hollow-chamber drainage integrated in the system for support of the weight and controlled drainage in a downward direction. Substructure profile with holding groove for EPDM film connection.
• Manual 2-point bar locking integrated as standard in the sliding leaf.
• Locking position(s) freely selectable in the grip and junction profile of the sliding leaf.
• Stability of the sliding system tested under extreme wind loads with a nominal load of 2,000 Pa (approx. 200 km/h) and a peak load of 3,000 Pa (approx. 250 km/h; with brief gusts of wind) in accordance with EN12210 and the classification C4/B5.
System variants (depending on static requirements)
Type 1: Glass-To-Glass
Flush-mounted without posts
Vertical 10 mm butt joint with SG bonding

Type 2: Semi-SG (Semi-Structural Glazing)
Flush-mounted with 22 mm posts, inside
Selection of different post installation depths
Vertical 20 mm butt joint, outside
Use of U fixation profiles in the vertical space between the panes

Type 3: Cover Cap Look
Flush-mounted with 22 mm posts, inside
Selection of different post installation depths
Exterior covers in various versions
No use of U fixation profiles in the vertical space between the panes

Type 4: Shifted Glass
Recessed with 22 mm junction profiles
Fixed lights bonded with U-profiles
Symmetrical external view with alternating fields in 2 tracks
Profile geometries
Facing width of the vertical junction and design post profiles: 22 mm
Height of the outer frame: 38 mm and 50 mm, concealed installation possible
Depth of the outer frame: 120 mm for 2 tracks
Base point construction under FFL: approx. 70 mm
Performance values
Maximum size per leaf: 8.5 m²  (fixed fields up to 18 m²)
Maximum weight per sliding leaf: 500 kg
Maximum overall height: 4 m
Double-glazing and Heat Mirror®
Maximum glass thickness:
Type 1-3: 34 mm for the sliding leaf - 36 mm for the fixed glazing
Type 4: 34 mm for fixed and sliding leaves
Attainable Uw values

Uw ≥ 1,1 W/m²K (depending on the element size, Ug value, Ø value and installation situation)

2-point locking: WK2 / RC2
• E-drives with toothed belts for a leaf weight up to 500 kg, automatic locking, concealed installation.
• Electromechanical locking for manually actuated systems, manually by pushbutton and / or remote control.
• Integrated opening monitoring (VDS-tested) / locking monitoring.
• All electric components can be networked with commercially available home automation systems.
• Locking via profile cylinder.
• Partition wall connections if post profiles are used.
• Integration of open corner solutions.
• Fall-protection glazing in front of the opening sliding leaf in multi-storey buildings.
• Manual trickle vent positioning of 20 and 40 mm of the sliding leaf.
• System drainage in drainage channel with stainless steel cover.
• Insect and sun protection systems integrated.

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