Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10
The AirTAC SAIJ40X90-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 90 mm nominal travel by up to 10 mm for a precise 80-90 mm usable window. Delivering 628 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod and a PT tapered port. This configuration provides excellent resistance to corrosion and wear in demanding environments.
Because the adjuster acts purely as a mechanical stop at the retract end, it cannot hold a load without continuous live air pressure. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific SKU is supplied without a magnet. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 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 SAIJ40 Adjustable Cylinder SAIJ40AX90-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 SAIJ40AX90-10 Is Used
End-Stop Calibration
Dial in the exact 80-90 mm retract distance during machine commissioning to perfect part seating without external stops.
Product Changeover
Quickly adjust the stroke by up to 10 mm on the fly to accommodate slight variations in incoming product sizes.
Assembly Positioning
Use the 628 N push force to drive light assembly tooling, relying on the rear screw for final positional accuracy.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX90-10 the Right Cylinder?
Selecting this 40 mm bore over a smaller 32 mm variant increases your push thrust from 402 N to 628 N at 0.5 MPa, while stepping up to a 50 mm bore yields 982 N. The adjustable stroke is ideal for machine setup and product changeover, letting you fine-tune the end position without swapping the cylinder or adding external stops. If your application requires the load to be held mechanically without air pressure, consider the SAIL or BSAI series instead. For a direct ISO 15552 replacement, match the 40 mm bore, 90 mm stroke, 10 mm adjustment, PT port, SUS420J2 rod, and the specified mounting set.
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 SAIJ40AX90-10 FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster screw acts as a mechanical stop that shortens the 90 mm nominal stroke, giving you a usable travel window of 80 to 90 mm. It only sets the end position and does not lock the load without live air pressure.
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