Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 95mm 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
- Stroke95 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30
The AirTAC SAIJ40X95-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 65 to 95 mm. It delivers 628 N of push force at 0.5 MPa, making it a solid fit for mid-range actuation. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
This variant uses an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The rear adjuster acts purely as a mechanical stop to dial in the end position during commissioning; it does not lock the load without live air pressure. Threaded PT air ports and adjustable air cushions at both ends manage impact deceleration.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 95 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 SAIJ40AX95-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×95 | 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 SAIJ40AX95-30 Is Used
Machine Changeover
Dial in the 65 to 95 mm stroke window during product size changes without swapping the cylinder or adding external stop blocks.
End-Position Tuning
Fine-tune the retract end position at commissioning using the rear screw, absorbing mechanical tolerances on the fixture.
Variable End Stops
Adjust the travel distance on the fly for conveyor diverters or sorting gates that require flexible positioning limits.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-30 the Right Cylinder?
Choose this 40 mm bore when your application requires precise end-position tuning without adding external stops, stepping up from a 32 mm bore (402 N push at 0.5 MPa) for greater thrust. The 30 mm adjustment range is ideal for product changeovers on a line. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI series cylinder instead. When replacing an ISO 15552 cylinder, verify the 40 mm bore, 95 mm stroke, 30 mm adjustment, PT G1/4 ports, and the required mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAIJ40AX95-30 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
The rear adjuster screw lets you shorten the 95 mm nominal stroke by up to 30 mm, creating a usable travel window of 65 to 95 mm. It functions as a mechanical stop for end-position tuning and requires live air to hold the load.
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