WindowMaster WMU 861 Chain Actuator
Available in stock
The WindowMaster WMU 861 is a robust chain-driven actuator engineered for large and heavy windows where traditional spindle solutions fall short. Its heavy-duty construction delivers reliable operation in demanding environments, while the chain mechanism provides smooth, consistent performance across extended opening cycles.
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| Specification | Details |
|---|---|
| Installation Type | Surface mounted |
| Window Types |
Top hung Bottom hung Side hung Light dome Roof Facade windows |
| Chain Stroke Options |
300 mm 500 mm |
| Pressure Force | 600 N |
| Traction Force | 500 N |
| Locking Force | 3000 N |
| Operating Speed | Programmable from 4 mm/s to 5 mm/s |
| Sound Pressure Level |
≤35 dBA (operational speed: 4 mm/s) ≤43 dBA (operational speed: 13 mm/s) |
| Power Supply | 24 VDC |
| Current Consumption | 1 A |
| Nominal Voltage | 24 V DC (max. 10% ripple) |
| IP Rating | IP54 |
| Colour Options | Anodised aluminium |
| Material | Anodised aluminium housing with zinc chromate passivated steel chain |
| To Be Ordered Separately | Brackets and standard extension cables type WLL |
| Networked Standby Consumption | Please see attachment for networked standby consumption under the MotorController / smoke control panel to which the unit is connected. |
Discover more in our FAQ
Our commitment to technical excellence and exceptional customer service has made us a trusted name in the industry. For professional guidance on your ventilation project, contact us today.
What is an actuator on a window?
What is an actuator on a window?
A window actuator is a device installed on a window that allows it to open and close automatically, eliminating the need for manual operation. They are ideal for hard-to-reach windows and rooflights, multiple windows that need to operate simultaneously, or buildings aiming to take advantage of automated windows and enhanced natural ventilation.
What are the key types of window actuators?
What are the key types of window actuators?
- Electric Chain Actuator: Pushes/pulls the window using a chain; good for medium-sized windows; smooth and quiet.
- Linear/Spindle Actuator: Uses a screw-like spindle to extend/retract; precise and robust; supports heavier windows.
- Folding Arm Actuator: Uses a hinged arm to swing the window open; allows wide openings; good for heavy or outward-opening windows.
What to consider when choosing a window actuator?
What to consider when choosing a window actuator?
When selecting a window actuator, keep the following in mind:
- Window Type & Size - Make sure the actuator is suitable for the window's design, dimensions, and weight.
- Force Requirements - Choose an actuator capable of providing enough force for smooth and reliable operation.
- Voltage & Power Supply - Decide between 24V or 230V options depending on your building's electrical setup.
- Mounting & Aesthetics - Consider available space and how visible the actuator will be.
Who can install a window actuator?
Who can install a window actuator?
Window actuators, used for high-level windows or roof vents, can be installed by qualified professionals such as window automation specialists, automated ventilation technicians, glaziers, or electricians.
