A smart curtain motor looks like a simple job: a motor, a track and an app. Yet most of the complaints we hear after installation have nothing to do with motor quality. They come from decisions made before buying it: the wrong track, fabric heavier than expected, or a power point nobody left inside the gypsum ceiling.
This article covers track and motor types, how to estimate curtain weight yourself, Wi-Fi versus Zigbee control for curtains, and the installation checks we repeat to installers on every site.
Motor and track types: start from the curtain, not the motor
Track motors
The most common choice for apartments and villas. The motor sits at one end of an aluminium track and pulls a belt that carries the curtain runners. It suits classic fabric curtains that open sideways, either to one side or from the centre. For centre-opening curtains one motor is enough, because the belt moves the two panels in opposite directions.
Tubular motors
These sit inside the tube of a roller blind and roll the fabric up and down. They work well in offices, kitchens and wide windows where heavy fabric isn't needed. The key check is that the motor diameter matches the tube, which you confirm from the manufacturer's data for each model.
Curved and L-shaped tracks
Some tracks can be bent for bay windows or room corners. Every bend adds friction on the belt, so the motor works harder and may get louder. Our advice to installers: on a curved track, pick a motor with more torque than a straight run would need, and confirm the track itself is designed to be bent.
Estimating curtain weight before you pick a motor
Every motor lists a maximum load in kilograms and a maximum track length. To compare properly you need a rough curtain weight:
Curtain weight = actual fabric width × curtain drop × fabric weight per m²
Actual fabric width is the window width multiplied by the fullness ratio, usually 2 to 2.5 for pleated curtains. Fabric weight varies a lot; the ranges below are approximate, and your fabric shop can give the exact figure.
| Fabric | Approx. weight per m² |
|---|---|
| Sheer / voile | 80 to 150 g |
| Medium (linen, cotton) | 200 to 300 g |
| Lined blackout or velvet | 300 to 600 g |
Worked example
A living-room window 3.5 m wide, a 2.7 m drop, lined blackout at about 450 g/m² and a fullness of 2.5:
- Fabric width = 3.5 × 2.5 = 8.75 m
- Fabric area = 8.75 × 2.7 ≈ 23.6 m²
- Weight = 23.6 × 0.45 ≈ 10.6 kg, plus runners and hooks
Apply a safety factor of 1.5 to 2 and you want a motor rated for at least 16 to 21 kg. Most home track motors are rated well above that, so weight is rarely the limit for a normal curtain. Track length, bends and poorly fixed brackets cause far more trouble. With two layers (sheer plus blackout) you need two tracks and two motors, each sized for its own layer.
Wi-Fi or Zigbee for curtains
A Wi-Fi motor connects straight to your router on 2.4GHz with no extra hardware, which is fine for one or two curtains. A Zigbee motor needs a Zigbee hub or gateway, but it keeps load off the router and usually stays more responsive once the house has many smart devices.
Our rule of thumb: if the home has, or will have, Zigbee switches and sensors, put the curtains on Zigbee too and run everything from one hub. If the curtain is the only smart device, Wi-Fi does the job. Avatto products, for example, run on the Tuya / Smart Life platform, so motors, switches and sensors share one app and can be linked to a voice assistant on one of the smart speakers we stock.
If you also want a button on the wall, add a curtain switch or module from the Zigbee smart modules range, after confirming it works with your motor.
Need technical advice before you buy?
Do Link's sales team helps you choose the right equipment for your site and budget, with special wholesale and project pricing.
Contact the sales team WhatsApp Call us 01098280784 Request a quote
Schedules and scenes are where the value is
- Open bedroom curtains gradually at wake-up time on weekdays only.
- Close west-facing curtains in summer afternoons to cut heat gain, which you feel in most Egyptian cities.
- A "movie" scene that closes curtains and dims the main lights in one tap.
- Presence simulation while travelling, with varied open and close times.
Some motors start moving when you give the curtain a light manual tug, which helps older family members. Not every model has it, so check the spec sheet.
Installation tips that save rework
One of the most common problems we find on site visits: the gypsum ceiling is closed and painted, and only then does someone notice there is no power point at the motor end of the track.
Tip for installers: decide the motor side (left or right) early and leave a 220V point inside the curtain pocket at that end before the gypsum is closed. Check that the pocket depth and width fit the motor body hanging below the track, using the model's datasheet.
- Brackets: space them evenly and add more on long runs and at bends. A sagging track adds friction and noise.
- Level: use a spirit level. A slight slope makes the curtain drift or strains the motor in one direction.
- Travel limits: set the open and close limits from the app or calibration button after installation.
- Signal: a gypsum pocket next to an aluminium window can weaken signal. Test before finishing, and on Zigbee keep a mains-powered device nearby as a repeater.
- Safety: keep cords out of children's reach and enable obstacle stop if the motor supports it.
How Do Link helps
Do Link stocks smart curtain motors along with hubs, switches and sensors, and offers complete smart home solutions. Our technical team reviews measurements, track type and protocol with you before you buy and supports you after installation. Products are original with a one-year warranty, delivered to every governorate in 2 to 3 working days, with special pricing for installers, contractors and compound projects.
Send your window sizes and fabric type through our contact page or WhatsApp 01098280784 and we will suggest the right motor and track, or visit our Bab El Louk branches daily from 10 AM to 10 PM.
Recommended products from Do Link
Get a quote from Do Link
Send us your site details and the number of points you need, and Do Link's sales team will reply with suitable models and pricing. Or visit one of our three branches in Bab El Louk, Cairo.
Contact the sales team WhatsApp Call us 01098280784 Request a quote
About Do Link
Do Link for Security Systems is the official Platinum Distributor of Uniview in Egypt, and we supply Hikvision, Dahua, ZKTeco, TP-Link and other global brands for CCTV, networking, intercom and access control. Our products are original with a one-year warranty, pre- and post-sale technical support, and delivery to all Egyptian governorates.
Frequently asked questions
Is one motor enough for a centre-opening curtain?
Yes, on most track systems. The motor sits at one end and the internal belt moves the two panels in opposite directions, so the curtain opens from the middle to both sides. The track must be built for centre opening, and the motor load rating should cover the weight of both panels together, not just one.
What happens to the curtain during a power cut?
Mains-powered track motors stop where they are, and on many models you can gently pull the curtain by hand. When power returns, some motors need one full open or close cycle to relearn their position. If outages are frequent in your area, ask about models with a rechargeable battery instead of a mains supply.
Do I need a Zigbee hub for a curtain motor?
Only if the motor is a Zigbee model. A Wi-Fi motor joins your router directly and works from the app without extra hardware. If your home has, or will have, Zigbee switches and sensors, a Zigbee motor is the better fit because everything then runs from one hub and one app.
Can a motor be added to my existing curtain track?
Track motors usually come with their own track containing the belt and runners, so they generally do not fit an old manual track. If you do not want to change the track, battery-powered curtain robots that clip onto an existing rod or track are an option, but they suit light and medium curtains better than heavy blackout fabric.
How much space does the motor need in a gypsum curtain pocket?
It depends on the model, since the motor body hangs below the track by a length set by the manufacturer. Check the datasheet before the gypsum work starts, leave enough depth and width for motor and track plus a margin for service, and place a power point at the motor end before the ceiling is closed.