Trade-Supply Chain Actuators: Mingardi, Topp & UCS, Next-Day Despatch Available
Product Overview
Chain actuators are the most widely used window actuator type in UK smoke and natural ventilation systems. A motorised chain drive opens and closes windows, rooflights, and vents in response to a smoke control panel, fire alarm, or building management system. Vent Trade stocks chain actuators from UCS, Topp, and Mingardi across all common strokes and voltages, available for next-day delivery.
Compact sprocket-chain actuator with 150N thrust. Adjustable stroke of 250mm or 365mm in 24V and 230V. Suits top-hung and bottom-hung windows up to 25kg.
Low-profile chain actuator with 300N thrust and double-link steel chain. Four adjustable stroke positions from 100-400mm. Available in 24V and 230V.
High-performance chain actuator with up to 400N thrust and built-in synchronisation. Four adjustable stroke positions from 150-600mm. Available in 24V and 230V.
Versatile chain actuator with 300N thrust and adjustable stroke up to 400mm. For top-hung, bottom-hung windows, domes and skylights. 230V and 24V.
Compact chain actuator with 300N thrust and adjustable stroke 240-360mm. For top-hung and bottom-hung windows, domes and skylights. 230V and 24V.
Dual push-point chain actuator with 400N thrust and 360mm stroke. Compact profile for top-hung and bottom-hung windows. 230V and 24V.
Compact chain actuator with 300N thrust and adjustable stroke up to 380mm. For top-hung, bottom-hung and centre-pivot windows. 230V and 24V.
Compact chain actuator with 400N thrust and adjustable stroke up to 500mm. For top-hung and bottom-hung windows, domes and skylights. 230V and 24V.
500mm chain actuator with integrated speed synchronisation. Available in 230V AC and 24V DC with optional F-Signal feedback. Grey, black and white finishes.
Compact chain actuator with sleek profile and selectable stroke. For top-hung, bottom-hung and side-hung windows. 230V and 24V in silver, white and brown.
Low-profile chain actuator with double link articulated stainless steel chain. 300N thrust, 130-400mm stroke via dip switches, 24V and 230V. Synchro option.
Powerful chain actuator with up to 400N thrust. Stroke from 450-800mm in 230V AC and 24V DC. Silver, white and dark brown finishes.
Dual-chain actuator with 600N thrust and integrated speed sync. For top-hung and bottom-hung windows. 230V AC and 24V DC with optional F-Signal.
Dual-chain actuator with 600N thrust and integrated speed sync. Fast installation at 24V DC. Silver, black and white with optional F-Signal.
Popular 300mm chain actuator in standard, RF and F-Signal variants. 230V AC and 24V DC in grey, black and white finishes.
Chain actuator with integrated speed sync for single or multi-actuator setups. 24V DC in grey, black and white finishes.
Concealed chain actuator for VELUX GGL, GGU and VL roof windows. 100N thrust, stroke up to 570mm, 24V. Hidden behind the ventilation flap when the window is closed.
Surface-mounted chain actuator with micro controller. Up to 300N thrust, 400 to 1000mm stroke options, 24V. Up to four actuators per window with no external sync module.
Programmable aluminium-cased chain actuator. Up to 200N thrust, 50 to 500mm adjustable stroke, 24V. Synchronises up to four actuators with no external module.
Electric chain actuators are the most widely used window actuator type in UK smoke and natural ventilation systems. Our range covers strokes from 200mm to 1,000mm in 24V DC and 230V AC variants from UCS, Topp, and Mingardi: available for next-day despatch.
For help selecting the right actuator for your application, call our technical team on 01202 725 689.
A chain actuator is an electric motor-driven device that opens and closes windows, rooflights, and vents using a motorised chain mechanism. The chain extends from the actuator body to push or pull the window sash, converting electrical input into linear mechanical movement.
Chain actuators are the most commonly specified actuator type in UK smoke ventilation and natural ventilation systems due to their compact profile, wide stroke range, and straightforward installation. They are available in 24V DC and 230V AC variants.
Leading European manufacturers including UCS, Topp, and Mingardi produce chain actuators in strokes from 200mm to 1000mm, covering the majority of residential and commercial window automation requirements.
Selecting the correct chain actuator requires matching three key parameters to your project requirements: stroke, force, and voltage.
Stroke is the travel distance needed to achieve the required free area specified in the fire strategy or ventilation design: common values are 200mm, 400mm, and 600mm.
Force must exceed the combined resistance of the window sash including weight, hinge friction, and wind loading, with a recommended margin of 20 to 30 percent above the calculated opening force.
Voltage is determined by the control system: nearly all AOV smoke ventilation systems use 24V DC, while natural ventilation may use either 24V DC or 230V AC depending on the controller specified.
Always confirm these parameters from the project design documentation before specifying, and consult the actuator datasheet to verify compatibility with the window type and fixing arrangement.
Chain actuators used in smoke ventilation systems in the UK must be part of an installation that complies with BS EN 12101, the European standard for smoke and heat control systems.
The actuator itself does not hold a standalone certification under BS EN 12101, but the complete smoke vent assembly (actuator, window, and frame) must be tested and certified to BS EN 12101-2 as a natural smoke and heat exhaust ventilator.
The smoke control panel powering the actuator must comply with BS EN 12101-10, and the overall system design must satisfy the requirements of Approved Document B of the Building Regulations.
Actuators used in AOV systems must also be compatible with 72-hour battery backup power supplies and must operate reliably under fire conditions as defined in the system certification.
Chain actuators are installed on a wide range of window and vent types across residential, commercial, and industrial buildings. Common applications include:
Their compact form factor allows discreet installation within the window frame or on the window reveal, making them suitable for architecturally sensitive projects.
Chain actuators are used in both new-build construction and retrofit installations, and are particularly popular in multi-storey residential buildings where stairwell smoke ventilation is a regulatory requirement under Approved Document B.
Chain actuators require regular inspection and functional testing to ensure reliable operation, particularly in life-safety smoke ventilation systems. BS 7346-8 recommends weekly visual inspections and monthly functional tests of AOV systems, including full open and close cycling of all actuators.
The actuator chain should be checked for signs of wear, corrosion, or mechanical damage, and the fixing brackets should be inspected to confirm they remain secure. Lubrication of the chain mechanism is generally not required on modern sealed units, but the manufacturer’s maintenance guidance should be followed.
In smoke ventilation installations, a full annual service by a competent engineer is recommended, including verification of actuator stroke, force output, and electrical connections. Actuators showing signs of reduced performance, excessive noise, or intermittent operation should be replaced promptly to maintain system compliance.