Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75S 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 SAIJ40AX95-75S
The AirTAC SAIJ40X95-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 95 mm travel back by up to 75 mm. This creates a highly flexible 20-95 mm usable stroke window, ideal for dialing in exact end positions during machine commissioning without swapping hardware. Driven by a 16 mm carbon steel rod, it delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
This specific SKU is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the unit features PT tapered port threading (G1/4). The rear adjuster acts purely as a travel stop to fine-tune the retract position; it is not a locking device and cannot hold a load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75S |
|---|---|
| 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 SAIJ40AX95-75S
| 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 SAIJ40AX95-75S Is Used
Product Changeover
Rapidly adapt the cylinder travel from 20 to 95 mm when switching a packaging line between different carton sizes without changing out the actuator.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to perfect sensor alignment and gripping force without adding external mechanical stops.
Variable Forming Stops
Adjust the depth of stroke on the fly for light pressing or forming tasks that require different material thicknesses within the same fixture.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX95-75S the Right Cylinder?
Choose this 40 mm bore cylinder when your application requires 628 N push force at 0.5 MPa and a highly variable end-of-stroke position. The 75 mm adjustment range is exceptionally wide, letting you adapt the travel window from 20 to 95 mm on the fly. If your setup needs less force, stepping down to a 32 mm bore yields 402 N push force. If you require fixed travel without any rear stopper tuning, the standard SAI series is a simpler choice.
For load-holding without continuous air pressure, this cylinder is insufficient as the rear adjuster and air cushions only decelerate the stroke. You would need to specify a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. To match this unit exactly: 40 mm bore, 95 mm stroke, 75 mm adjustment, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and a -S 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 SAIJ40AX95-75S 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 the maximum 1.0 MPa pressure, it can deliver up to 128 kgf.
The rear adjuster screw lets you shorten the 95 mm nominal stroke by up to 75 mm, creating a usable travel window of 20 to 95 mm. This stopper only sets the end position; it does not lock or hold the load without live air pressure.
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