Email info@smoke-vent-systems.com or call now on 01425 473537

Smoke Vent Systems Ltd. can provide a full range of chain, linear and folding arm actuators plus gas struts for both doors and windows.

SVS Ltd. supply actuators for the automation of windows and doors for natural ventilation purposes plus the replacement of existing actuators being used on AOV’s for smoke control purposes. These products should be installed by a qualified electrician or competent professional.

PLEASE NOTE: For new installs, regulations changed in July 2013 requiring all Smoke AOV’s to be harmonised units. This requires the actuator and vent to have been tested together to meet EN12101-2.   If you are unsure of the correct motor for your application, or wish to obtain full specifications for the actuator you require, please contact us. Please check out our gallery below for more information. You can click on an image to enlarge it, or click on a product name to find out more information.

Chain Actuators


ACK4 ActuatorACK4 Chain Actuator

Available in black, white or grey, these ACK4 chain type actuators have a strong die cast aluminium body with a robust stainless steel chain containing an acoustic device that warns of incorrect installation. The ACK4 actuator is particularly popular for skylights, roof vents and conservatories.

WMU 836 Actuator

WMU 836 Chain Actuator

WMU 836 chain actuators are perfect for use as an AOV or OV Actuator on most windows and lightweight roof vents and domes. Available with a variety of opening strokes, ranging from 400mm to 1000mm, these chain actuators are suitable for both smoke ventilation, as well as everyday natural ventilation purposes.

WMU Actuator

WMU 84/86/88 Chain Actuator

WMU 84/86/88 chain actuators are compact, programmable chain actuators designed for use on heavier roof vents and domes. Capable of being programmed to the desired opening speed and stroke, they are also programmed to reverse when encountering obstacles in the way of closing, ensuring a significantly reduced risk of entrapment. WMU chain actuators are suitable for both smoke ventilation, as well as everyday natural ventilation purposes.

Supermaster Actuator

Supermaster Chain Actuator

The Supermaster chain-type electric window actuator is heavy-duty and combines a strong, double link stainless steel chain with powerful thrust, making it perfect for heavy windows or windows requiring a large opening. Both high speed and virtually noiseless, the Supermaster can provide window automation for both smoke ventilation and everyday natural ventilation purposes.

L35 Actuator

L25 and L35 Chain Actuators

L25 and L35 actuators allow window automation and are suitable for everyday natural ventilation purposes. They can be operated in parallel, with up to 30 actuators capable of being operated in a group.

HCV Chain Actuator

HCV Chain Actuator

The Actulux HCV chain actuator for opening and closing of facade and roof windows. Suitable for smoke, heat ventilation and daily ventilation. Microprocessor controlled BUS-synchronization – up to 8 units can be connected

Slimchain Actuator

Geze Slimchain Chain Actuator

The Geze is suitable for both smoke extraction and natural ventilation purposes, the Slimchain Chain Drive Actuator boasts continuously adjustable drive strokes and speeds. Up to three drives can be synchronised to work simultaneously with no external control device required.

Twin and Double Chain Actuators


Aumuller KS2 S12 Twin Chain Actuator 200 – 400mm

Aumuller KS2 S12 Twin Chain Actuator 200 – 400mm designed for use on wider windows and roof vents where two push points are required. With a choice of larger stroke options it makes it an ideal choice for many smoke control applications.

Aumuller KSA S12 Twin Chain Actuator 400 – 600mm

Aumuller KSA S12 Twin Chain Actuator 400-600mm designed for use on most windows and lightweight roof vents. With a choice of larger stroke options it makes it an ideal choice for many smoke control applications.

WMU 836 Double Chain Actuator

WMU 836 double chain actuators are available programmed to operate multiple AOV or OV windows and lightweight roof vents and domes. Available with a variety of opening strokes, ranging from 400mm to 1000mm, these chain actuators are suitable for both smoke ventilation, as well as everyday natural ventilation purposes.

Linear Actuators – Rack and Pinion


Mingardi EVO2 Actuator

EVO2 Linear Drive Actuator

Our Mingardi EVO2 linear drive actuators allow for automation of roof vents and domes for both natural and smoke ventilation. They are also available in pairs as a double rack dual drive actuator – two linear electric actuators which work simultaneously.

Duo Linear Actuators

A65 Duo Drive Linear Actuators

Our Comunello A65 linear drive actuators are a pair of programmed linear actuators. Also available individually. With low noise operation, these actuators are perfect for both natural and smoke ventilation for larger, heavier roof vents.

Linear Actuators – Spindle


Aumuller S3 / S12 24V DC Spindle Actuators

For natural ventilation, smoke and heat exhausting and NSHEV (EN12101-2). Robust corrosion-resistant design in a slim aluminium housing, optionally in RAL colours Easy installation due to adjustable clamp ring and rear suspension. Stainless steel spindle and spindle tube, ball bearings with end position dampening. Programmable parameters of Intelligent Control Electronics S12

The WMS 306-n is a strong actuator suitable for roof openings for comfort ventilation. Requires a ±24V control unit or control unit with MotorLink®. Synchronisation of up to 4 window actuators. Genuine position feedback and 3 speeds when using control unit with MotorLink®. Can be programmed to suit specific requirements – i.e. pressure- and traction force, stroke, speed/sound level.  The actuator has an integrated reverse function to ensure a prolonged life span of the window gaskets

Euro 1 Linear Actuator

EURO 1 electric linear actuator utilises a stiff rod that is highly resistant to maximum loads. Available in either 230V or 24V DC. Predisposed of a system of electronic limit switch in opening and closing with overload protection. The stroke can be adjusted from the outside by a register and it can be connected in parallel. Available in Silver Anodised or Black Anodised. Strokes available: 70 – 200 – 300 or 500 mm. Supplied complete with fixing brackets.

K&G Grasl G08-G60 Spindle Drive Actuators (450-2560N) designed for use on high level roof vents and domes. Available in a variety of opening strokes. Can be syncronised as a group of 2, 3 or 4 Actuators using SYN Control Unit.

Folding Arm Actuators


HCV Door Drive

HCV Door Drive

HCV Door Drive suitable for opening doors to 90° for natural ventilation and some smoke ventilation purposes

Folding Arm FTA600

Folding Arm Actuators FTA600

This high quality Aumuller folding arm drive is suitable for opening and closing side-hung windows and certain doors to 90°. Available in three options (Inward, Slider & Roller) for use in Natural Ventilation and some SHEV applications.

WMD820 folding arm actuator

WMD820 Folding Arm Actuator

This Window Master WMD820 Folding Arm Actuator is designed for use on side-hung (inward or outward) opening windows or doors for natural ventilation and some smoke ventilation purposes.

Gas Struts


Smoke Vent Systems can provide bespoke gas struts to fit any door or window. To take advantage of our free design service on refurbishment and replacement jobs, please contact us with your CAD drawings. Please check out our gallery below for more information. You can click on an image to enlarge it, or click on a product name to find out more information.

Fixed Gas Strut

Fixed Force Gas Struts

We supply a range of fixed force gas struts which can be fitted to almost any panel or hatch that requires a controlled motion. Simply choose a panel type, either horizontal or vertical, and then let us know the size of your panel, the opening angle you would like and your access requirements. We will quote you for the correct gas strut, mounting locations and brackets, and can then order and fit your gas struts the next day. We even offer a free design service when refurbishing or replacing old openers on hatches & domes.

Variable Force Gas Strut

Variable Force Gas Struts

We supply a range of variable force gas struts which can be fitted to almost any panel or hatch that requires a controlled motion. Simply choose a panel type, either horizontal or vertical, and then let us know the size of your panel, the opening angle you would like and your access requirements. We will quote you for the correct gas strut, mounting locations and brackets, and can then order and fit your gas struts the next day. We even offer a free design service when refurbishing or replacing old openers on hatches & domes.