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KELLERKELLER minimal windows®

Aluminium sliding window

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Troisvierges, Luxembourg
Name of product/article
KELLER minimal windows®
Aluminium sliding window

KELLER minimal windows®
Design sliding system of insulated aluminium frame profiles with minimal facing width of the vertical leaf profiles of only 21 mm.

Further info from manufacturer on KELLER minimal windows®
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, implementable without threshold.

System configurations up to 4-track systems, solutions free of corner posts, all-glass corners and wall integration of the sliding leaf.

Mitred, all-round outer frame provided with 25 mm insulating bars per track with screwed corner cleats. 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 lock integrated as standard in the sliding leaf.

Locking position(s) freely selectable in the grip, double-vent and coupling profile of the sliding leaf.

Tested stability of the sliding system under extreme wind loads up to 200 kg/m² (> 200 km/h) in accordance with EN12210 and the classification C4/B5.

Profile geometries

Facing width of the vertical leaf profiles: 21 mm

Facing width of double-vent profile: 85 mm

Height of the outer frame: 38 mm and 50 mm, concealed installation possible

Depth of the outer frame: 55 / 120 / 185 / 250 mm for 1-2-3-4 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


Maximum glass thickness: 34 mm (double-glazing and Heat Mirror®)

Attainable Uw values

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


2-point locking: WK2 / RC2


Electric drives with toothed belts for a leaf weight of up to 800 kg and in case of telescopic drive of several leaves up to a total of 2,000 kg (only one motor required), automatic locking, concealed installation.

Electromechanical locking for manually actuated systems, manually by pushbutton and / or remote control.

Integrated opening monitoring.

All electric components can be networked with commercially available home automation systems.

Locking via profile cylinder.

Manual trickle vent positioning of 20 and 40 mm of the sliding leaf.

System drainage in drainage channel with stainless steel cover.

Insect screen integrated into the system.

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