Airtac SAID40 Double Rod Cylinder SAID40AX145
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX145 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX145
The AirTAC SAID40X145 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and a 145 mm non-standard stroke. Because a rod exits both end covers, the annulus area is identical on both sides, yielding exactly 528 N of thrust and pull force at 0.5 MPa. The twin rods provide inherent anti-rotation guidance, keeping the workpiece stable without external linear bearings.
This unit is configured with SUS420J2 stainless steel rods (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount position switches along either rod extension.
Airtac SAID40 Double Rod Cylinder SAID40AX145 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX145 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 145 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 SAID40AX145
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×145 | 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 SAID40AX145 Is Used
Symmetric Transfer
Drives a transfer shuttle where the equal 528 N force and speed in both directions prevent stalling on the return stroke.
Anti-Rotation Slide
Uses the twin-rod guidance to keep a vertical pick-and-place head perfectly aligned without rotational drift.
Rear Cam Actuation
Mounts a cam on the rear rod end to trip a mechanical valve while the front rod drives the primary workpiece.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX145 the Right Cylinder?
Select this 40 mm bore when an application requires perfectly symmetric extend and retract forces (528 N at 0.5 MPa) and cannot tolerate the differential speeds of a single-rod SAI cylinder. If your mechanism needs higher thrust, stepping up to the 50 mm bore yields 825 N both ways, while dropping to a 32 mm bore provides 345 N. Because the 145 mm stroke is a non-standard made-to-order length, ensure your design accommodates the rear rod protrusion, which makes the overall length longer than a comparable single-rod cylinder.
This model uses PT ports and supports the reduced SAID mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on single-rod variants. Note that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If power drops, the cylinder drifts, so use a SAIL lock cylinder or external rod lock for position holding.
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 SAID40AX145 FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides. It generates 528 N of force in both extend and retract directions at 0.5 MPa, and 739 N at 0.7 MPa.
Yes, the SAID40X145 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 double-rod profile cylinders using the same mounting footprint.
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