Airtac SAID40 Double Rod Cylinder SAID40AX225
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX225 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 SAID40AX225
The AirTAC SAID40X225 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 both sides, yielding exactly 528 N of force at 0.5 MPa on both the extend and retract strokes. This equal-force symmetry is crucial for applications requiring consistent push and pull dynamics.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads (G1/4) and lacks a standard magnet, meaning it is not equipped for AirTAC CMSE or DMSE position sensing out of the box. The extruded aluminum barrel includes sensor grooves on both sides for future upgrades if needed.
Airtac SAID40 Double Rod Cylinder SAID40AX225 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX225 |
|---|---|
| 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 SAID40AX225
| 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 SAID40AX225 Is Used
Symmetric Transfer
Drives a transfer carriage where equal push and pull speeds are critical, utilizing the twin-rod design to maintain balanced momentum during direction reversals.
Anti-Rotation Slide
Guides a precision sliding fixture using both rod ends to prevent mechanical twisting under offset loads, eliminating the need for an external guide rail.
Dual-Station Actuation
Mounts a primary workpiece on the front rod and a secondary cam or mechanical flag on the rear rod to trigger external mechanisms simultaneously.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX225 the Right Cylinder?
Choose this double-rod SAID40X225 over a single-rod SAI when your mechanism requires anti-rotation guidance, dual-side tooling, or a rear cam. It provides 528 N both ways at 0.5 MPa; if your application needs less force, step down to the 32 mm bore (345 N), or step up to the 50 mm bore (825 N) for heavier loads. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders.
For a 225 mm stroke, the 16 mm rod provides good rigidity, but always verify side-load limits. Note that the overall length is longer than a single-rod SAI because the rear rod protrudes, so you must account for extra rear clearance in your design. If your load must hold position without live air pressure, this cylinder will drift; you should specify an SAIL lock, BSAID clamp-lock, or external rod lock instead. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAID40AX225 FAQ
Because it is a double-rod cylinder, the rod area is subtracted on both sides, making extend and retract force equal. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, the SAID40X225 is a profile cylinder with standard ISO 15552 mounting interface dimensions, making it a drop-in replacement for other ISO 15552 double-rod cylinders. Just ensure your design accommodates the rear rod protrusion and uses PT tapered port threads (G1/4).
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