Airtac SAID40 Double Rod Cylinder SAID40BX5
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX5 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 5mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke5 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX5
The AirTAC SAID40X5 is a double-acting, double-rod ISO 15552 profile cylinder engineered for demanding symmetry tasks. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528 N of force both ways at 0.5 MPa. The 5 mm stroke provides an ultra-short motion profile while maintaining twin-rod anti-rotation stability.
This specific configuration utilizes a SUS304 stainless steel rod (material code B) for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting of CMSE reed or DMSE solid-state switches, though this unit is supplied without a magnet.
Airtac SAID40 Double Rod Cylinder SAID40BX5 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX5 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40BX5
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID40 Double Rod Cylinder SAID40BX5 Is Used
Symmetric Transfer
Ideal for short-stroke pick-and-place where the matching extend and retract forces ensure consistent dynamic performance in both travel directions.
Anti-Rotation Slide
The dual-rod architecture prevents piston rotation during the 5 mm travel, providing precise linear guidance for clamping or pressing small components.
Rear-Cam Actuation
The protruding rear rod can drive a secondary mechanism or trigger a mechanical limit switch independently from the primary front-side workpiece.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX5 the Right Cylinder?
Select this 40 mm bore when an application demands precise short-stroke symmetry, as the twin rods prevent rotation better than a single-rod SAI. If your mechanism requires less force, dropping to a bore 32 yields 345 N both ways; stepping up to a bore 50 increases that to 825 N. Keep in mind that a plain SAID does not hold its load if air pressure is lost—use an external rod lock or a SAIL cylinder for fail-safe holding.
To replace other ISO 15552 double-rod cylinders, match the 40 mm bore, 5 mm stroke, PT port thread, and mounting accessory. The SAID series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, intentionally omitting the FB, CA, CB, and CR styles found on single-rod variants.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID40 Double Rod Cylinder SAID40BX5 FAQ
Because the double-rod design subtracts the rod area on both sides, the push and pull forces are equal. It generates 528 N in both directions at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes. The SAID40X5 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement by matching the 40 mm bore, 5 mm stroke, and PT port, using the standard SAID mounting set.
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