TOPENS swing gate openers support both pull-to-open (inward) and push-to-open (outward) installations, offering flexible setup options.
However, the maximum opening angle is not determined by the opener alone—it primarily depends on your installation geometry and mounting dimensions. If the required conditions are not met, the gate may not reach a full 90° opening.
This guide explains why this happens and how to attempt to resolve the issue.
1. Check Key Installation Measurements: X and Y
Two critical dimensions directly affect the opening angle:
- X Value: Distance from the hinge center to the mounting surface of the post bracket
- Y Value: Available width on the gate post or wall for installing the post bracket
Why these measurements matter:
- If X is too large, the arm may not have sufficient travel
- If Y is too small, the bracket may not be positioned correctly, or the arm may become compressed or pinched between the gate and the wall
Either condition can restrict movement and prevent the gate from reaching 90°.
2. Minimum Requirements for a 90° Opening
Each TOPENS model has specific requirements, but the general guidelines are:
- Keep X within the recommended range
- Ensure sufficient Y space
A. Pull-to-Open Installation (Inward Opening)
|
Models |
X Value |
Y Value |
| A3S / A5S / A8(S) / AD5S / AD8S / PW302 / PW502 / PW802 / KD702 / A5131 / A8131 / A5132 / A8132 |
≤ 20cm (7.87”) |
≥9cm (3.54”) |
| AT6131(S) / AT12131(S) / AT6132S / AT12132S / AT602 / AT1202 |
≤ 17cm (6.69”) |
≥13cm (5.12”) |
| XD551(S) / XD851(S) / XD552(S) / XD852(S) |
≤ 14cm (5.51”) |
≥12cm (4.72”) |
| JY9132 | ≤ 21cm (8.27”) |
≥20cm (7.87”) |
B. Push-to-Open Installation (Outward Opening)
|
Models |
X Value |
Y Value |
| A3S / A5S / A8(S) / AD5S / AD8S / PW302 / PW502 / PW802 / KD702 / A5131 / A8131 / A5132 / A8132 |
≤ 18cm (7.09”) |
≥6cm (2.36”) |
| AT6131(S) / AT12131(S) / AT6132S / AT12132S / AT602 / AT1202 |
≤ 17cm (6.69”) | ≥6cm (2.36”) |
| XD551(S) / XD851(S) / XD552(S) / XD852(S) |
≤ 15cm (5.91”) |
≥12cm (4.72”) |
| JY9132 | ≤ 25cm (9.84”) |
≥15cm (5.91”) |
If your measurements fall outside these ranges, achieving a full 90° opening may require adjustments.
3. How to Achieve a 90° Opening
A. Pull-to-Open Installations
If X is too large:
- Trim or chisel the gate post to reduce the X distance
- Move the hinge inward (if structurally feasible)
If Y is too small:
- Install the arm higher (at the top of the gate post or wall) to improve geometry, ensuring that when the gate is fully open, the arm is not pinched or compressed
- Modify or rebuild part of the gate post or wall to create more mounting space
B. Push-to-Open Installations
If X is too large:
- Reduce X by trimming or chiseling the gate post
- Adjust the hinge placement if possible
- If driveway space allows, install the post bracket on the opposite side (X side) of the gate post and consider using the pull-to-open bracket
Notes:
-
- The bracket may occupy part of the driveway space when the gate is open
- Always ensure that the arm is not pinched at the fully open position
If Y is too small:
- Add an extension bracket or plate to increase the mounting surface, ensuring that it is securely fastened
- Consider top mounting of the arm
- Trim or chisel the gate post or wall to create additional space
4. Key Takeaways
- A full 90° opening depends on meeting the required X and Y dimensions.
- If these requirements are not met, the opener can still operate, but with a reduced opening angle.
- Always check for mechanical interference before finalizing the installation to ensure safe and smooth operation.
5. Need Help?
If you are unsure about your setup, our support team can help you evaluate it.
Please provide:
- A full photo of the gate and post
- A close-up of the hinge and mounting area
- Your X and Y measurements
Contact: support@topens.com
We will help you confirm whether a 90° opening is achievable and recommend the best solution.
