
So, what is an automatic door operator?
An automatic door operator is the drive unit mounted above or beside the door. It takes a signal from the sensors and moves the leaf – opening it, holding it, then closing it – with force and speed limited for safety.What is inside the operator
Three core parts do the work: an electric motor for movement, a gearbox or belt drive that transfers it to the leaf, and a controller that decides when and how the door moves. A battery backup is usually added so the door keeps working during load shedding.The operator vs the whole door
The operator is only the engine. The complete system also includes the door leaf, the track or hinges, and the automatic door sensors. People often say operator when they mean the whole door – but strictly, the operator is just the powered unit.Sliding vs swing operators
A sliding operator moves a leaf sideways; a swing operator pushes or pulls a hinged leaf. Which you need depends on the door – our automatic door operator guide explains how to choose.How big an operator do you need
Size depends on the door weight, width and traffic. See what size automatic door operator you need for the details. In short, what is an automatic door operator in your building will come down to the door it has to move.FAQ
Is the operator the same as the motor? No – the motor is one part inside the operator, alongside the gearbox and controller. Where is the operator fitted? Usually in the header above the door, or beside a swing leaf.Talk to us
Coetz supplies and installs automatic door operators across Gauteng, with supply nationwide. Learn how automatic doors work, browse automatic door systems, or contact our team. For standards, see EN 16005.
Getting it right with Coetz
When it comes to what is an automatic door operator, the details decide the outcome – the operator rating, the sensor package and a clean installation, all built to recognised automatic door technology safety principles. Coetz specifies each entrance to its real traffic and building rather than a one-size-fits-all kit, so the door opens smoothly and closes safely from the first day.
Coetz has years of experience with automatic entrances across South Africa, from single shopfronts to multi-door developments. We install to standard, commission every safety function, and back the entrance with service and genuine spare parts, so it keeps working long after the invoice is paid.

Planning early is the simplest way to keep a project on budget and on time. Getting the power supply, the opening and the safety package right up front avoids rework and return visits later.

Ready to move ahead? Tell us your opening size and traffic level, and we will recommend the best option and a clear, itemised price.

More about What Is An Automatic Door Operator
Understanding what is an automatic door operator helps you specify the right entrance the first time. The best results come from matching the operator, sensors and glass to the building and its traffic, then commissioning the door so it opens smoothly and closes safely. Cutting corners on any of these usually costs more later in call-outs and downtime, so it pays to get the specification right at the start.
Every site is a little different, so the what is an automatic door operator that suits a busy mall entrance is not the same as a quiet office door. Traffic volume, opening width, safety requirements and the look of the frontage all shape the final choice, which is why a short site assessment is always worth the time before you commit.
Coetz supplies, installs and services automatic doors across South Africa, and we are happy to advise on what is an automatic door operator for your project – from a single entrance to a multi-door development, backed by service and genuine spare parts.
What is an automatic door operator: what our estimators check
Clients ask us, What is an automatic door operator? The honest answer depends on the opening, the traffic through it and what the building already has in place, so the checklist below is what our estimators actually work through.
- The structural opening. Measure the brickwork opening rather than an existing frame, and note whether the reveal is square.
- Traffic and duty cycle. A quiet office entrance and a centre entrance passing thousands of people a day are not the same specification.
- Power and controls. Confirm what supply reaches the head of the opening, and whether access control, an intercom or a fire panel must interface.
- Glass. Coetz™ glazes as standard with 6.38 mm clear laminated safety glass.
- Service access. Automatic door systems are installed and serviced by our team, so plan for periodic servicing from day one.
If that question applies to one specific opening on your project, send us the sizes and a photo of the existing entrance. That is normally enough for us to answer it, and to quote, without a site visit.

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