How to Choose the Right Gate Motor for Your Property
How to Choose the Right Gate Motor for Your Property
Choosing a gate motor isn't complicated — but there are enough variables that getting it wrong is easy if you don't know what to look for. Wrong voltage for the application. Motor rated for a gate half the weight of what's being installed. Remote system that doesn't integrate with an existing intercom. These are the kinds of mistakes that lead to callbacks and replacements.
This guide runs through the key decisions in plain language, so whether you're speccing a job for a client or researching your own driveway gate, you leave with a clear picture of what you actually need.
Step 1 — Gate type: sliding or swing?
This is the first fork in the road, and it determines everything else. Sliding gate motors and swing gate motors are completely different products — they're not interchangeable
Sliding gate motors
A sliding gate motor drives a rack — a toothed rail fixed to the bottom of the gate — to push the gate open and closed along its track. The motor mounts to a post or pad near the gate. Sliding gate motors are generally more reliable in high-cycle applications and work well on heavier gates.
Key spec to check: the motor's rated gate weight. Always err on the side of a higher-rated motor than you think you need — a motor running at the top of its rated capacity will wear out significantly faster than one with headroom to spare.
Swing gate motors
Swing gate motors operate either via a ram (a linear actuator that pushes the gate open) or an underground mechanism that drives the hinge post directly. Ram-type operators are the most common for residential installs — they're straightforward to install and maintain. Underground operators give a cleaner look but require more precise installation.
For double leaf swing gates, you'll need two motors — one per leaf — and a control board that can synchronise them. Leaf sequencing (where one leaf opens before the other to allow them to pass each other) is a common requirement on double swing gates where the leaves would otherwise collide.
Our recommendation
If your swing gate has auto-close and only one set of beams, talk to your gate technician about getting the second set installed. It's a straightforward upgrade that brings your system into compliance, protects the people using your property, and significantly reduces your liability.
At NewTower Gate Accessories & Automation, we won't cut corners on safety and we'd encourage you not to either. Get in touch with our team if you'd like us to assess your current setup.
Step 3 — Gate weight and size
Every motor has a rated maximum gate weight. This is not a guideline — it's a hard limit. Running a motor above its rated weight shortens its life significantly and voids the warranty on most products.
Weigh your gate if possible, or estimate based on material and size. A standard 3-metre tubular steel gate will typically weigh 80–120kg. A 4-metre heavy infill steel gate can easily hit 200kg or more. Timber gates can be heavier than they look.
When in doubt, spec up. A motor rated to 500kg running a 300kg gate will outlast a motor rated to 350kg running the same gate by a significant margin.
Step 4 — Cycle frequency
How many times per day will the gate open and close? A residential driveway gate might cycle 10–20 times per day. A commercial site or apartment complex might cycle 100 times or more.
Gate motors have a duty cycle rating — the percentage of time they can be running before they need to cool down. A motor with a 30% duty cycle is fine for a home driveway. A gate doing 100+ cycles per day needs a motor rated for continuous or near-continuous duty.
This is where residential and commercial specs diverge most sharply. Don't put a residential-grade motor on a commercial application — it will fail, and it will fail quickly.
Step 5 — Control and access
The motor is only part of the system. You also need to decide how people will operate the gate:
- Remote handsets — the standard solution for residential. Most Newtower motors are supplied with remotes, and additional remotes can be added.
- Keypad entry — common for residential and commercial. Allows code-based access without a remote.
- GSM / WiFi / Bluetooth control — allows the gate to be opened via a phone app, and can provide access logs and remote management. Increasingly standard on residential installs.
- Intercom integration — for properties where visitors need to be able to call from the gate. Can be wired or wireless.
- Loop detectors — sensors embedded in the driveway that detect vehicles and can trigger automatic opening or closing. Common on commercial sites.
It's worth having this conversation with your client before you spec the motor, because the control accessories need to be compatible with the control board, and some boards have limitations on what can be integrated.
Step 6 — Safety
Australian standards require that automated gates include safety measures to prevent injury. At minimum, this means:
- Safety beams (photocells) — infrared sensors that stop the gate if something breaks the beam during closing. A minimum of two beams is strongly recommended: one at bumper height to detect vehicles, one at a lower height to detect people and animals.
- Sensitive edges — pressure sensors on the leading edge of the gate that stop it if it contacts an obstruction.
- Obstruction detection — most modern control boards include motor current monitoring that stops and reverses the gate if it meets resistance. This is a baseline safety feature, not a substitute for physical safety devices.
If you're installing on a property with children or animals, don't skimp on the safety specification. Two photocell beams at different heights is the minimum we'd recommend for any residential installation.
Our recommendation for most residential jobs
For a standard residential sliding gate up to 400kg, a 24V DC sliding gate motor — such as the Centsys D5 Evo — with a battery backup module, two photocell safety beams, and a GSM or WiFi control unit covers the brief well. It's a system that a homeowner can operate from their phone, that keeps working in a blackout, and that will handle daily residential use reliably for years.
For swing gates, a 24V ram operator per leaf with synchronised control handles most residential double-leaf installs without drama.
Still not sure? Talk to us.
Newtower's team works with installers and homeowners across Australia every day. If you've got a specific job or a specific gate and you want to talk through the spec before you order, give us a call. We'd rather help you get it right the first time than deal with a return down the track.
Browse Gate Motors at newtower.com.au | (03) 9305 1400 | Campbellfield VIC | Ships Australia-wide