A complete range of mutually coordinated system components for smoke and heat exhaust ventilation (SHEV) and daily window operation, from electrically driven chain and spindle drives to central control systems.

Fanlight Opener

Ventus F 200 Fanlight Opener

Compact modular fanlight opener for top-hung, pitched, and round-arch windows with concealed fixing, integrated locking, and optional crank operation.

Opening width up to 200mm
Sash weights up to 80kg
Sash widths 400–3600mm

Chain Drive

Eltral KS 30/40 Chain Drive

Versatile chain drive for smoke ventilation and daily window operation. Available in white, black, and silver with radio remote control option.

Push/Pull force 300N
AC 230V input
Solo, Synchro & Remote versions

Chain Drive

Single Chain Drive 300

Compact DC24V/AC230V chain drive with electronic overload cutoff, double-link chain for stable operation, and 20,000-cycle endurance rating.

Push/Pull force 150N
Travel 300mm
IP65 protection

Concealed Chain Drive

WMF 200 Chain Drive

Concealed chain drive for SHEV and daily ventilation windows with multi-point lock linkage, electronic overload protection, and up to 3-drive synchronization.

Thrust/Pull 200N
Travel 400mm
10,000+ cycle life

Heavy Duty Chain Drive

WMF 400 Chain Drive

High-strength carbon steel chain drive with built-in microprocessor control, automatic end-position switch, and adjustable chain in anodized aluminium housing.

Thrust/Pull 400N
Travel 500–800mm
Up to 3 syncs

SHEV Chain Drive

WMF 550 Chain Drive

High-performance chain drive for SHEV and ventilation with multi-point lock linkage, concealed installation, and powerful synchronization for up to 8 drives.

Thrust up to 600N
2000N locking force
Up to 8 syncs

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