Motorized Roller Shutter

Overview

A motorized roller shutter is a slatted curtain that winds up onto a barrel inside a box above a window or door opening and unrolls down side rails to cover it. Shutters provide security, weather protection, insulation and blackout, and are common on shopfronts, garages and residential windows. The slat curtain rolls compactly into a headbox, so the shutter clears the opening entirely when raised.

How it works

The barrier is the Shutter Curtain, dozens of roll-formed slats hooked together, fitted with end locks that keep the curtain captive in the rails, a hanger top slat, and a reinforced bottom rail that seals against the sill. The curtain winds onto the Roller Tube, an octagonal barrel carried on a driven end and an idler-end bearing.

Power comes from the Tubular Motor housed inside the barrel. A single-phase induction motor drives a multi-stage planetary gearbox; an electromagnetic spring brake holds the curtain at any height, and a gear-counter limit mechanism stops travel at preset top and bottom positions. The motor head reacts torque into the headbox end plate while a crown adapter keys the gearbox output to the tube.

The curtain edges run in the Guide Rail channels, lined with brush seals that cut noise and draughts, and the rolled-up curtain is concealed in the Headbox. Operation is wireless: the Control System uses an RF receiver board with up and down relays, fed by a wall switch and a handheld remote. For power failures, the Manual Override provides a hand crank and counterbalance spring so the shutter can be wound open by hand.