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Windowmaster – WMD 820 - Folding Arm Actuator

Folding Arm Actuator - Used as part of an Electric Window Opening system to open side-hung windows or doors.

Folding Arm Actuator

Product ID: WMD 820

Windowmaster WMD 820 Folding Arm Actuator is used on side-hung (inward or outward) opening AOV windows or doors where a 90-degree opening is required.

Window Types

Key features

  • 0-90° opening stroke (programmable)
  • Suitable for inward or outward opening doors & side-hung windows
  • 2 units can be synchronised to work as a pair
  • Various fixing brackets are available (each sold separately)
  • Supplied with 5.0m cable
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  • 24v DC

Opening stroke

  • 0-90° (Programmable)


  • 250N


  • Silver (Anodised)
  • Powder Coated to specific RAL

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