Airtac SAID40 Double Rod Cylinder SAID40AX225S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX225S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX225S
The AirTAC SAID40X225-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 225 mm stroke. Because a rod extends from both end covers, the annulus area is identical on extend and retract, yielding exactly 528 N of force in each direction at 0.5 MPa. The -S suffix indicates an integrated magnet for position sensing.
This through-rod configuration allows you to mount a workpiece on the front rod end and a cam or limit flag on the rear. It uses a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and features adjustable air cushions at both ends (30 mm cushion length) to decelerate the piston near stroke end.
Airtac SAID40 Double Rod Cylinder SAID40AX225S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX225S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 SAID40AX225S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 SAID40AX225S Is Used
Symmetric Transfer
Drives a workpiece forward and retracts it with identical 528 N force and speed, ensuring smooth, balanced motion in automated transfer lines.
Dual-Side Actuation
Mounts a primary tool on the front rod and a secondary cam or mechanism on the rear rod end to operate two synchronized stations simultaneously.
Anti-Rotation Guidance
The twin-rod architecture keeps the load guided against rotation better than a single rod, providing stable linear movement for precision handling.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX225S the Right Cylinder?
Choose this 40 mm bore when you need symmetric push and pull forces, as the twin-rod design ensures equal 528 N output both ways at 0.5 MPa. If your application requires less force, the 32 mm bore variant offers 345 N both ways, whereas the larger 50 mm bore provides 825 N. The double-rod design is preferred over a single-rod SAI when you need dual-side guidance, anti-rotation stability, or rear-rod sensing.
For drop-in compatibility, ensure your mounting interface matches ISO 15552 dimensions and select from the SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, or TCM2 (note that FB, CA, CB, and CR are single-rod SAI only). Because the stroke is 225 mm, external guides are recommended to prevent rod-bearing bending under side loads. Note that this cylinder does not hold position when air is lost; use a SAIL or BSAID lock cylinder if load holding is required.
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 SAID40AX225S FAQ
The double-rod design means the push and pull forces are equal because the rod area is subtracted from both sides. It delivers 528 N in both directions at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is dimensionally interchangeable per ISO 15552. However, the SAID mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2; it omits the FB, CA, CB, and CR brackets used on single-rod variants.
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