Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S
The AirTAC SAIJ100X140-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a robust 3927N push force at 0.5 MPa and utilizes a PT G1/2 port. The built-in adjuster allows you to trim the nominal 140mm stroke back by up to 30mm, creating a precise 110-140mm usable travel window for fine-tuning end positions during commissioning.
This specific configuration includes a SUS420J2 stainless steel rod for enhanced corrosion resistance and an integrated magnet (-S) for position sensing. The sensor groove on both sides of the extruded aluminum barrel accommodates AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set deceleration and end limits, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX140-30S Is Used
Product Changeover
Dial in the 110-140mm travel window during packaging line format changes to accommodate varying carton sizes without changing the cylinder.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to perfectly align a 3927N pressing or clamping operation at 0.5 MPa.
Sensor-Integrated Setup
Leverage the -S magnet and dual sensor grooves to mount CMSE or DMSE switches for automated position feedback across the adjusted travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-30S the Right Cylinder?
Choose this adjustable SAIJ model over a fixed-stroke SAI cylinder when your machine setup requires variable end-stops or product-size changeovers without physically swapping the actuator. If you need less force, stepping down to an 80mm bore yields 2513N push at 0.5 MPa; stepping up to a 125mm bore provides 6136N. To replace an ISO 15552 cylinder, match the 100mm bore, 140mm stroke, 30mm adjustment, PT G1/2 port, and the -S magnet requirement.
For load-holding applications without live air pressure, this cylinder's adjuster is not a lock—consider the AirTAC SAIL or BSAI series instead. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The 25mm rod and M20x1.5 thread handle high side loads well, though any stroke over 300mm would require an external guide.
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 SAIJ100 Adjustable Cylinder SAIJ100AX140-30S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to mechanically shorten the 140mm nominal stroke by up to 30mm, providing a usable travel window of 110-140mm. It functions as a stop to tune the end position and does not lock the load without live air.
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