Airtac SAID40 Double Rod Cylinder SAID40AX45
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX45 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 45mm 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
- Stroke45 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX45
The AirTAC SAID40X45 is a double-acting, double-rod ISO 15552 pneumatic cylinder featuring a non-standard 45 mm stroke. Because the piston rod exits both end covers, the annulus area is identical on extend and retract. This means push and pull forces are perfectly balanced, yielding 528 N of thrust in either direction at 0.5 MPa.
This made-to-order unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance over standard carbon steel. The extruded aluminum profile barrel includes sensor grooves on both sides for flexible switch mounting, and its PT tapered port threads match the G1/4 standard for this bore size.
Airtac SAID40 Double Rod Cylinder SAID40AX45 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX45 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 SAID40AX45
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 SAID40AX45 Is Used
Symmetric Force Transfer
Drives a workpiece from one end while using the opposing rod end for an equal-force return, ensuring perfectly balanced pressure on delicate films or web handling guides.
Anti-Rotation Slides
The dual rods exiting both covers prevent the piston from twisting under offset loads, providing precise linear guidance for short-stroke clamping and pressing tools.
Rear-Rod Sensing Flag
Mounts a physical position flag or cam on the rear protruding rod to trigger external mechanical limit switches without interfering with the primary front-side work area.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX45 the Right Cylinder?
Select this non-standard 45 mm stroke variant when a short, symmetrical motion is required. If you need slightly more force, stepping up to the bore 50 size provides 825 N both ways at 0.5 MPa; dropping down to bore 32 reduces it to 345 N. The twin-rod design is specifically chosen over a single-rod SAI when your mechanism needs dual-side guidance, anti-rotation stability, or a rear-rod cam for secondary actuation.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Note that the adjustable air cushions only decelerate the piston near stroke end; if your machine loses air pressure, this cylinder will not hold its load—you would need a SAIL or BSAID lock variant for that.
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 SAID40AX45 FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides, meaning extend and retract forces are equal. It generates 528 N both ways at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, the SAID40X45 is an extruded aluminum profile cylinder that is dimensionally interchangeable per ISO 15552 mounting dimensions. It uses PT tapered G1/4 ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mountings.
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