Linear actuators
Linear actuators are fitted with a steel rack or spindle, which is guided vertically into a tube housing, which provides large opening forces and strokes. Linear actuators are used most frequently in roof areas to activate dome lights, sky lights and roof windows.


Precision engineered steel rack with a pinion geared

motor to provide force and stability.


Highly versitile 230V or 24V rack and pinion drive for all types of opening.


Increased force capacity and multiple fixing options

provide optimum solutions for heavy roof vents.

  Up to 3000 Newton force, up to 1500mm stroke length
- the ultimate drive for large applications.
linear button za rack button sxd rack button dxd rack button
  Rack and Pinion   ZA Series   SXD Series   DXD Series

Our comprehensive range of linear actuators provide:

230V and 24V options
Opening forces from 300 N to 3000 N
Opening stroke lengths up to 1500 mm
Synchronisation of up to 8 actuators on one vent
Passive and active automatic anti-finger trap facilities on closing
Direct interface to locking drives without the need
for control panels
Waterproof option
Special corrosion proof option for swimming pool environments
PDA programming
High speed function for smoke ventilation
Fire-rating to comply with EN12101-2 specification for SHEVs
Testing to a minimum of 11,000 cycles for natural ventilation
RAL colour option available

Which actuator is right for your project?

Choosing the right linear actuator is crucial.
For advice on the optimum choice for your
project, call the technical team on

0161 491 4840.

DYER Environmental Controls Ltd, Unit 10, Lawnhurst Trading Estate, Cheadle Heath, Stockport, Cheshire SK3 0SD ....T: +44(0)161 491 4840 ....E: