LB Supplies

Motors / Chain Actuators

Electric ACK4 Chain Actuators - The ACK4 Chain Actuator has a rigid aluminium body and the double link, stainless steel chain is centrally postitioned allowing an adjustable opening of between 100mm – 400mm. They are available in white, brown and mill finish as standard but we can supply the actuators in any colour to match your roofvent.

The chain actuators are controlled by either a rocker switch or a climate control and rain sensor.

We have a full range of fitting kits and brackets to enable installation on all systems. 

ACK4 Electric Actuator (Code:VNT006)

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  • ACK4 Electric Actuator     (Code:VNT006)
ACK4 Electric Actuator     (Code:VNT006)
ACK4 Electric Actuator     (Code:VNT006)
ACK4 Electric Actuator     (Code:VNT006)

The ACK4 Actuator is the most popular of openers in the UK. The 230 volt electric motor is robust, reliable and IP55 rated so can be used on skylights and roofvents.  Adjustable from 100 - 400mm in 50mm increments.

Available in white, brown, black and mill finish.  Special colours to order.

A selection of installation brackets are available.

Long Back Bracket (Code:VNT037)

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  • Long Back Bracket     (Code:VNT037)
Long Back Bracket     (Code:VNT037)
Long Back Bracket     (Code:VNT037)
Long Back Bracket     (Code:VNT037)

Long Back Bracket for the installation of the ACK 4 Electric Actuator.

Available in white and brown and other special colours to order.

Small Swivel Brackets (Code:VNT039)

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  • Small Swivel Brackets  (Code:VNT039)
Small Swivel Brackets  (Code:VNT039)
Small Swivel Brackets  (Code:VNT039)
Small Swivel Brackets  (Code:VNT039)

Small Swivel Brackets for the installation of the ACK 4 Electric Actuator.

Available in white and brown and other special colours to order.

Special Motor Bracket (Code:VNT040)

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  • Special Motor Bracket (Code:VNT040)
Special Motor Bracket (Code:VNT040)
Special Motor Bracket (Code:VNT040)
Special Motor Bracket (Code:VNT040)

Special Motor Bracket for the installation of the ACK 4 Electric Actuator.

Available in white and brown and other special colours to order.