Gemini 12V 12Ah Sliding Gate Motor Kit
Gemini Slider 12Ah kit: 12V DC motor, 12V 12Ah battery and 2 x 3-button remotes for busier home sliding gates up to 500kg. 26 m/min, 200 openings a day. Rack sold separately.
- Gates to 500kgOn 80mm roller-bearing wheels
- 26 m/minGate speed
- 12V 12Ah batteryBigger battery than the 7Ah
- 200 openings a dayHeavy residential rating
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Alectra Hatfield 648 Jan Shoba Street, HatfieldMon to Fri 07:30 to 17:00, Sat 08:00 to 17:00Get directions
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Alectra Wonderboom Braam Pretorius Street, WonderboomMon to Sun 08:00 to 16:45Get directions
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This is the Gemini Slider 12Ah sliding gate motor kit without rack: the 12V DC motor, a 12V 12Ah battery and two Gemini 3-button remotes. It is Gemini's heavy residential model, rated for 200 openings a day on gates up to 500kg, at 26 m/min. Gemini recommends it over the 7Ah model for higher traffic or more backup. If your gate has no rack yet, look at the 12Ah kit with 4m steel rack or the 12Ah kit with rack and anti-theft bracket.
What the Gemini Slider 12Ah does
The motor sits on its base plate next to the gate and drives it along the rack through a 23:1 oil-filled gearbox. Gemini rates it for sliding gates up to 500kg, on condition that the gate runs on 80mm roller-bearing wheels. Starting pull is 30 kgf and rated pull is 17 kgf. It is rated for 200 openings a day at a 75% duty cycle, with a soft start and soft stop. With the 12Ah battery in place, the gate still works when the power goes off, for as long as the battery has charge.
12Ah or 7Ah: which Gemini slider?
The two Gemini 12V sliders share the same 500kg limit, the same 26 m/min speed and the same pull figures. Gemini lists only two differences: the battery and the daily rating. The 7Ah model is rated for 150 openings a day and now ships with a 12V 8Ah battery. This 12Ah model is rated for 200 a day and carries a 12V 12Ah battery, which is why Gemini puts it forward for busier gates or where you want more backup.
Running it on solar
The slider can run on solar with Gemini's solar kit. Alongside that kit you also need the solar-compatible Gemini 12V power supply, the cables and an MC4 connector set.
Rack, beams and other add-ons
Rack is not in this box, because the length depends on your gate. Steel or nylon rack can be used, and Alectra sells the Gemini 2m steel rack. Add Gemini infrared wireless beams for safety, because the collision sensing only reverses the gate while it is closing. The Gemini anti-theft bracket fits over the override lever, a Gemlink Lite smart device lets you work the gate from your phone, and extra Gemini 3-button remotes code in to the same receiver.
Warranty and fitting
Gemini gives 24 months on mechanical parts and 12 months on electrical parts, and batteries are not covered. The Gemini 12V slider manual and the 12Ah spec sheet are linked on this page. Alectra Solutions supplies the equipment only, so have the motor fitted by your own gate installer.
Rack is not part of this kit, because the length depends on the gate: a 4m gate needs 4m of rack. If your gate has no rack yet, look at the Gemini kits that come with a 4m rack.
Key features
- 12Ah battery backup. A 12V 12Ah sealed lead-acid battery keeps the gate working in a power cut. Gemini recommends the 12Ah where you want more backup.
- 200 openings a day. Gemini's heavy residential rating, at a 75% duty cycle, for busier home gates.
- Gates up to 500kg. Gemini's rating, for a gate that runs on 80mm roller-bearing wheels.
- 26 m/min gate speed. Driven through a 23:1 oil-filled gearbox.
- 30 kgf starting pull. 17 kgf rated pull, the same as the 7Ah model.
- Collision sensing on closing. Reverses the gate if it meets an obstruction while closing.
- Soft start and key override. Smooth starts and stops, and a key-locked override lever for moving the gate by hand.
- Weather-resistant lid. Gemini's cover keeps the weather off the motor and control card.
Specifications
| Model | Gemini Slider 500, 12V DC, 12Ah version |
|---|---|
| Motor | 12V DC |
| Maximum gate weight | 500kg (gate on 80mm roller-bearing wheels) |
| Gate speed | 26 m/min |
| Gearbox | 23:1, oil-filled |
| Pull force | 30 kgf starting, 17 kgf rated |
| Openings a day | 200 |
| Duty cycle | 75% |
| Battery | 12V 12Ah sealed lead-acid, included |
| Remotes | 2 x Gemini 3-button code-hopping remotes, included |
| Use | Heavy residential sliding gates |
| Warranty | 24 months mechanical, 12 months electrical (batteries excluded), per Gemini |
| In the box | Motor, 12V 12Ah battery, 2 x Gemini 3-button remotes |
| Sold as | Motor kit without rack |
Not in the box
- Rack, steel or nylon, length to suit the gate
- Rack stoppers
- Infrared safety beams
- Anti-theft bracket
- Gemlink Lite smart device for phone control
- Extra remotes (the receiver holds 30)
- Solar kit, solar-compatible 12V power supply, cables and MC4 set, if you want to go solar
Which one fits your gate?
| Your gate | 12V 7Ah | 12V 12Ah |
|---|---|---|
| Sliding gate up to 500kg | Fits | Fits |
| Up to 150 openings a day | Best fit | Works |
| Up to 200 openings a day | Not rated | Best fit |
| Load shedding is the main worry | Shorter backup (8Ah battery) | Longer backup (12Ah battery) |
Manuals and documents
Questions people ask
No. This kit suits a gate that already has rack in good condition. For a bare gate, choose the Gemini 12Ah kit with 4m steel rack, or the kit with rack and anti-theft bracket.
Gemini gives no figure for openings on battery. It depends on the gate's weight, how freely it runs and how often it is used. Gemini recommends the 12Ah over the 7Ah where you want more backup.
Both have the same 500kg limit, speed and pull force. The 12Ah is rated for 200 openings a day and has the bigger battery; the 7Ah is rated for 150. Pick the 12Ah for a busy gate or more backup.
Yes, with Gemini's solar kit. Alongside the solar kit you also need the solar-compatible Gemini 12V power supply, the cables and an MC4 connector set.
Gemini's collision sensing reverses the gate only while it is closing. Wire infrared safety beams across the driveway as well, so the gate has a second check before it closes.
24 months on mechanical parts and 12 months on electrical parts. Batteries are not covered.
Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.











