Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX55-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 55mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke55 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10
The AirTAC SAIJ40X55-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 45-55 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This adjustable-stroke variant uses a PT tapered port thread and omits the FB, CA, CB, and CR mounting styles found on some standard models, retaining Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces. The rear stopper mechanism allows precise end-position tuning during commissioning without adding external stops.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 55 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×55 | 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 SAIJ40 Adjustable Cylinder SAIJ40AX55-10 Is Used
Machine Changeovers
Dial in the 45-55 mm travel window during product size transitions without physically swapping the cylinder or adding external shims.
End-Position Tuning
Fine-tune the retract stroke at commissioning to achieve exact positioning, compensating for mechanical tolerances in the fixture.
Assembly Fixtures
Provide adjustable end-stops for clamping applications where part dimensions vary slightly, ensuring consistent clamping force.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX55-10 the Right Cylinder?
If your process needs less force, stepping down to a 32 mm bore yields 402 N; for heavier loads, a 50 mm bore provides 982 N. Because the stroke is under 300 mm, side-load stress is minimal, though the 16 mm rod still handles standard guide loads well.
Select this SAIJ model over a fixed SAI cylinder when product changeovers require variable end-stops without swapping hardware. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for true load-holding, consider an external pilot-operated check valve or the SAIL locking cylinder. To match this ISO 15552 replacement exactly, specify a 40 mm bore, 55 mm stroke, 10 mm adjustment, PT port, and no magnet.
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 SAIJ40 Adjustable Cylinder SAIJ40AX55-10 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 10 mm, creating a usable travel window of 45-55 mm from the 55 mm nominal stroke without changing the cylinder.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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