Motorised Sliding Doors: The Best 2026 Guide

Coetz™ is a South African glazing and entrance-solutions company specialising in aluminium doors, glass systems, automatic doors, motorised sliding doors and related entrance automation solutions.

Motorised sliding doors provide a convenient, secure and professional entrance solution for commercial buildings, retail stores, offices, shopping centres, healthcare facilities, hospitality venues and residential properties.

Coetz™ supplies and supports automatic sliding door systems designed to provide smooth, reliable and hands-free access. Our motorised sliding door solutions combine an electric door operator, drive mechanism, activation sensors and safety controls to automatically open and close the sliding door when required. For new installations or existing sliding doors requiring automation, we provide a practical solution based on the door size, weight, traffic level and application.

What are motorised sliding doors?

A motorised sliding door (also spelled motorized sliding door) is a sliding door operated by an electric motor and automatic door operator, rather than requiring the user to manually push or pull the door. When a person approaches the entrance, an activation sensor detects movement and signals the operator to open the door. After the person passes through, the system automatically closes the door, subject to its programmed settings and safety controls.

Motorised sliding doors are also commonly referred to as:

Automatic sliding doors
Automated sliding doors
Electric sliding doors
Automatic glass doors / automatic glass sliding doors
Sliding door automation systems

This terminology matters for search because different customers use different phrases when looking for the same type of entrance solution.

Automatic sliding doors for commercial & residential applications

Commercial buildings — professional hands-free entrances for offices, corporate buildings and business premises.
Retail & shopping centres — designed for entrances with frequent pedestrian traffic.
Hotels & hospitality — a modern entrance with convenient hands-free access.
Healthcare facilities — controlled, hygienic and accessible movement through the building.
Residential properties — convenient access to homes, patios and other areas where automation is required.
Aluminium & glass entrances — operators integrated with suitable aluminium and glass door configurations for a clean architectural entrance.

Why choose motorised sliding doors?

Hands-free operation — enter and exit without touching the door.
Improved accessibility — easier for wheelchair users, people with mobility challenges and anyone carrying goods.
Professional appearance — automatic glass sliding doors create a modern, high-end entrance.
Efficient traffic flow — smooth pedestrian movement through busy entrances.
Space efficient — leaves slide rather than swing into the entrance area.
Integrated access control — combine with cards, keypads, biometrics or other authorised activation methods.
Safety systems — activation and safety sensors detect people and obstructions and control the door accordingly, with emergency and power-failure functions commonly available.

Motorised sliding door components

A typical automatic sliding door system consists of several components working together:

Door operator — the motorised unit controlling the opening and closing movement.
Drive belt / transmission — transfers the motor’s movement to the sliding leaves.
Activation sensors — detect approaching users and trigger the opening cycle.
Safety sensors — monitor the doorway to help prevent closing onto an obstruction.
Controller — sets opening/closing speed, hold-open time and operating modes.
Track and rollers — guide the leaves smoothly during operation.
Emergency / manual operation — provisions for power failures and emergencies, depending on specification.

Genuine automatic door spare parts keep these components running for years.

Can an existing sliding door be motorised?

In many applications, yes. An existing sliding door may be suitable for automation, provided the door construction, weight, track condition, available space and overall configuration are compatible with the selected operator. Before automating an existing door, the installation should be assessed for door leaf weight and dimensions, the number of leaves, existing track and roller condition, available installation space, opening width, traffic frequency, indoor or outdoor application, the required activation method, and access-control and safety requirements.

Automatic sliding door vs manual sliding door

Feature	Manual sliding door	Motorised sliding door
Operation	Manual	Automatic
Hands-free access	No	Yes
Sensors	No	Available
Access-control integration	Limited	Yes
High-traffic suitability	Application dependent	Excellent
Accessibility	Manual operation required	Easier hands-free access
Convenience	Standard	High

Motorised sliding doors for South African conditions

For South African installations, the system should be selected according to the actual operating environment rather than door size alone. Pedestrian traffic, door weight, opening frequency, environmental exposure, power availability (including load-shedding) and required security/access control should all be considered. For commercial environments, selecting an appropriately rated operator matters because high-traffic entrances place substantially greater demands on the operator.

Planning the opening before you order

An automatic entrance is decided by the opening long before it is decided by the operator. The single most common reason a project stalls is that the wall has no room for the leaf to slide into, and that is far cheaper to discover on a drawing than on site.

Side room. A sliding leaf has to go somewhere when it opens. A single-sliding entrance needs clear wall alongside the opening roughly equal to the leaf width; a bi-parting entrance needs that space on both sides. Windows, columns, downpipes and signage all compete for it.
Header space. The operator sits in a housing above the opening. Confirm what is directly above the lintel — a bulkhead, ducting or a suspended ceiling can all affect how the header is accommodated.
Power. A dedicated supply is needed at the header. Getting the electrician to leave a point during first fix is straightforward; chasing a wall afterwards is not.
Floor condition. The track and floor guide rely on a level, sound floor across the full opening. A floor that falls away at one end will show up as uneven running later.
Glass and framing. Leaf weight follows from the glass specification and the frame, and leaf weight is what the operator has to be matched to.

None of this is difficult, but all of it is much easier to resolve at design stage. Send the elevation and a plan view early and these questions are answered in one exchange.

Sensors, safety and how the entrance behaves

The operator moves the leaf; the sensors decide when. Most complaints about an automatic entrance — a door that opens at passing traffic, closes too soon, or hesitates — are sensor and timing issues rather than drive faults.

Two distinct functions are involved. Activation detection opens the entrance when somebody approaches. Safety or presence detection holds it open while somebody is still in the opening. They are separate systems and they are aimed differently, which is why a door can open reliably and still close on a slow-moving user if the presence sensor is misaligned.

Opening speed, closing speed, hold-open time and reduced-speed behaviour are all set during commissioning. It is worth telling the commissioning technician how the entrance is actually used — a pharmacy with elderly customers wants a longer hold-open than a warehouse office — because factory defaults suit nobody in particular.

Aim matters more than brand. A correctly aimed budget sensor outperforms a badly aimed premium one.
Environment interferes. Rain, moving foliage, reflective floors and direct sun can all trigger or confuse detection.
Never bypass a safety sensor. If a safety device is faulting, it is reporting a problem, not causing one.

Maintenance, wear parts and what fails first

An automatic entrance contains moving parts that wear in a predictable order, which is what makes planned servicing worthwhile. Failures are rarely sudden; they are usually a symptom that was audible for weeks.

Track contamination. Dust and building sand act as a grinding paste under the rollers. Keeping the track clean is the cheapest maintenance there is.
Rollers. Wear shows up as noise, vibration or heavy running before it shows up as a breakdown.
Drive belt. A consumable rather than a failure. Belts stretch and lose tension over time and are replaced as routine.
Sensors. Drift out of alignment, collect dust, and are the most frequent single cause of call-outs.
Backup battery. Only reveals a problem when the mains fails, which is precisely the wrong moment to find out.

A new noise, a slight hesitation, or an entrance that no longer closes fully are all cheap to correct at that stage. Left alone, the same symptoms turn into roller, belt and alignment work at once. Coetz™ stocks the operators, sensors, belts, rollers and control boards it fits, so a repair is not waiting on an imported part.

What to send us for a quotation

The quickest quotations are the complete ones. Sending the following usually gets a price back without a second round of questions.

Opening width and height in millimetres, measured to the structure rather than to an existing frame.
The clear wall space either side of the opening, which determines single-sliding or bi-parting.
Expected daily traffic and peak periods, so the operator is matched to real use rather than to the width alone.
Access-control requirements — readers, intercoms, exit buttons or electric locking.
After-hours security needs, so locking is designed in rather than added later.
A photograph of the existing entrance, which answers more questions than a paragraph of description.

If some of that is still undecided, send what you have. Early input is almost always cheaper than late correction, because the header, power supply and floor are far easier to allow for during design than to retrofit afterwards.

Installation, commissioning and handover

Installation is the shorter half of the job. Commissioning is where an entrance is turned from something that opens into something that behaves correctly for the building it serves, and it is worth understanding what happens at that stage.

Mechanical set-up. The header is fixed and levelled, the track is aligned and the leaves are hung and adjusted so they run true across the full opening. Alignment done properly here is what prevents roller wear later.
Electrical connection. The operator is connected to its dedicated supply, and any backup battery, locking and access-control wiring is terminated and tested.
Sensor aiming. Activation and safety detection are aimed to the actual traffic path, then tested by walking the approach from several directions rather than from one.
Timing. Opening speed, closing speed, hold-open duration and reduced-speed behaviour are set to how the entrance is used.
Safety verification. The emergency stop, presence detection and manual release are each confirmed to work before handover.

Ask for a short handover at the end. Whoever manages the building should know how to switch operating mode, how to release the leaves manually in a power failure, and what the door is supposed to sound like when it is running well — because that last one is what makes an early fault obvious months later.

One last practical point: keep the commissioning record and the handover notes somewhere the building can find them. When a technician attends a fault two years later, knowing how the entrance was originally configured — which operating mode it runs in, what the hold-open was set to, and what locking and access control were fitted — turns a diagnostic visit into a repair visit. It is a small piece of paperwork that repeatedly saves a call-out.

Why Coetz?

Coetz™ provides professional glazing, aluminium and automatic door solutions for South African projects. Our expertise covers the relationship between the door, glass, aluminium framing, automation and access control — so the complete entrance is considered, rather than treating the motor as an isolated component. We can assist with automatic sliding doors, motorised sliding doors, automatic glass doors, aluminium sliding doors, sliding door automation, door operators and sensors, access-control integration, commercial entrance automation, installation, maintenance, and replacements and upgrades.

Our flagship motorised sliding door solution is the MC-125 automatic sliding door operator — see the full guide for specifications and pricing.

Frequently asked questions

What is a motorised sliding door?

A motorised sliding door is a sliding door operated by an electric motor and automatic door operator. Sensors or other activation devices trigger the door to open and close automatically.

What is the difference between a motorised and automatic sliding door?

In most commercial applications the terms refer to essentially the same concept. “Motorised” describes the electric drive mechanism, while “automatic” describes the automated operation of the door.

Can an existing sliding door be automated?

Many existing sliding doors can be automated, provided the door construction, weight, track, rollers and available installation space are suitable for the selected operator.

Are automatic sliding doors suitable for businesses?

Yes. Automatic sliding doors are widely used in offices, retail stores, shopping centres, hotels, healthcare facilities and other buildings where convenient pedestrian access is required.

Can automatic sliding doors work with access control?

Yes. Automatic sliding doors can be integrated with suitable access-control systems to control who is permitted to enter a building or restricted area.

Are automatic sliding doors safe?

A properly specified automatic sliding door can incorporate activation and safety sensors, controlled movement and other safety functions for the intended application. The complete installation should be correctly specified, installed and maintained.

Do automatic sliding doors work during a power failure?

It depends on the operator and configuration. Automatic door systems can incorporate battery backup or emergency and manual-opening provisions, so the required power-failure behaviour should be specified when selecting the system.

How much does a motorised sliding door cost in South Africa?

The cost depends on the door dimensions, glass or aluminium configuration, door weight, operator, sensors, access control, installation requirements and site conditions. A site assessment is normally required for an accurate quotation.

Where does Coetz supply automatic sliding doors?

Coetz provides automatic door and entrance solutions across South Africa, with particular relevance to commercial, architectural and glazing applications, and installation across Gauteng.

Get a quote for motorised sliding doors

Contact our team on 010 412 0062 for motorised and automatic sliding doors, or explore our automatic door solutions and the MC-125 operator.

For background, see this automatic door overview.

Looking for motorised sliding doors? Coetz Glazing has you covered.

Coetz Glazing supplies and installs motorised sliding doors across the area.

Ask our team about motorised sliding doors pricing and options.

We handle motorised sliding doors from first quote to final installation.