Airtac SAID40 Double Rod Cylinder SAID40AX180
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX180 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX180
The AirTAC SAID40X180 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 180mm stroke. Because a rod exits both end covers, the annulus area is identical on extend and retract, yielding an equal 528N of force in both directions at 0.5 MPa. It operates at speeds of 30-800 mm/s and uses a G1/4 port.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of position switches. Note that the through-rod design requires additional rear clearance compared to a single-rod SAI cylinder to accommodate the protruding rod end.
Airtac SAID40 Double Rod Cylinder SAID40AX180 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX180 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 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 SAID40AX180
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×180 | 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 SAID40AX180 Is Used
Symmetric Force Transfer
Ideal for mechanisms requiring identical push and pull dynamics, as the twin-rod design ensures the 528N force and travel speed remain perfectly balanced in both directions.
Twin-Station Actuation
Drive two separate operations simultaneously or mount a secondary tool on the rear rod end, utilizing the through-rod to actuate a secondary mechanism behind the cylinder.
Anti-Rotation Slides
The dual-rod construction naturally resists piston rotation, providing superior load guidance and preventing twisting in linear sliding applications without external guides.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX180 the Right Cylinder?
Choose this 40mm bore double-rod cylinder when your mechanism requires equal push and pull forces (528N each way at 0.5 MPa) or needs rear-side actuation, such as driving a cam or mounting a position flag. If your application requires less force, the 32mm bore offers 345N both ways; if you need more, the 50mm bore provides 825N. The 180mm stroke falls well within the 1200mm standard maximum, making it readily available.
This model uses a PT tapered port thread and is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 double-rod cylinders. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because this is a plain double-rod cylinder, it does not hold position when air is lost; for load-holding needs, consider the SAIL or BSAID series. At 180mm stroke, side-load is minimal, but long unsupported strokes should still use an external guide.
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 SAID40AX180 FAQ
Because the double-rod design has the same effective piston area on both sides, the force is equal in both directions: 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa.
Yes, the SAID40X180 is an ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders of the same bore and stroke. It supports mounting sets Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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