Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75 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 SAIJ40AX95-75
The AirTAC SAIJ40X95-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 628N of push force at 0.5 MPa. It features an extruded aluminum barrel with sensor grooves on both sides and a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance. With a nominal stroke of 95mm, the external stopper allows you to dial back the travel by up to 75mm, creating a highly versatile 20-95mm usable stroke window.
This wide adjustment range is ideal for applications requiring frequent product-size changeovers without swapping hardware. The cylinder uses a PT tapered port thread (G1/4) and operates at speeds between 30-800mm/s. It supports a specific mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. The rear adjuster functions strictly as a travel stop to set deceleration endpoints and does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75 |
|---|---|
| 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 SAIJ40AX95-75
| 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 SAIJ40AX95-75 Is Used
Product Changeovers
Dial in the exact end-stop for varying package sizes on a packaging line using the 20-95mm travel window, eliminating the need to physically swap cylinders during format changes.
Machine Setup
Fine-tune the retract position during initial commissioning to perfectly align tooling, absorbing mechanical tolerances without adding external stopper blocks.
Variable Diverter
Adjust the stroke length on a conveyor sorting arm on the fly to accommodate different product widths, ensuring accurate routing without reprogramming the motion controller.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75 the Right Cylinder?
Select this 40mm bore cylinder when an application requires a 628N push force at 0.5 MPa combined with highly variable end-position tuning. If your setup demands less force, stepping down to a 32mm bore yields 402N; if you need significantly more clamping power, stepping up to a 50mm bore provides 982N. The SAIJ40X95-75 is chosen over a fixed-stroke SAI model when you need to fine-tune the retract position at commissioning or adapt to multiple product sizes on the fly.
Because the nominal stroke is 95mm, side-loading is less of a concern than with longer strokes, but the 16mm rod and M12x1.25 thread still require standard alignment practices. For load-holding without continuous live air pressure, this cylinder is insufficient since the rear adjuster is only a stop; you should instead utilize an external pilot-operated check valve or explore AirTAC SAIL or BSAI locking cylinders. To match this ISO 15552 interchangeable unit exactly, specify: 40mm bore, 95mm stroke, 75mm adjustment, PT port thread, appropriate mounting, 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 SAIJ40AX95-75 FAQ
At an operating pressure of 0.5 MPa, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. If operated at 0.7 MPa, the push force increases to 879N.
The SAIJ40X95-75 has a nominal stroke of 95mm with a rear adjusting screw that allows you to trim the effective travel back by up to 75mm. This creates a usable stroke window ranging from 20mm to 95mm, which can be modified at any time without changing the cylinder.
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