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Acmeda S40 40mm Tube – Confirmed Motor Compatibility
You’ve identified your roller blind tube as Acmeda S40 T-Spline.
The S40 is a 40mm internal profile typically used in smaller residential installations.
If your blind uses an S40 tube, it can be motorised using the correct S40 crown and drive configuration.
The motors listed below are confirmed to fit the S40 internal profile.
Not sure this is your tube?

Make sure your tube profile is identical to the S40 image before ordering.
How Do You Want to Power Your Blind?
S40 supports both rechargeable and 240V motor options.
Rechargeable motors are most common in residential retrofits.
240V motors are suitable where fixed power is available.
✔ Confirmed S40 Compatibility
🔧 Compatible Rechargeable Motors (S40)
These motors install directly into the S40 tube using the correct S40 drive configuration.
🔧 Compatible 240 Volt Motors (S40)
Hardwired motors are suited to installations where fixed power is available.
🔧 Choosing the Right Torque for an S40 Tube
Torque selection should reflect blind size and fabric load.
As width increases, selecting adequate torque improves lifting performance.
Increasing torque does not increase tube rigidity.
🧱 Bracket Compatibility
S40 blinds typically use compact brackets designed for 40mm systems.
✅ Why These Motors Are Confirmed to Fit
Each motor listed is matched to the S40 internal profile.














