Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75
The AirTAC SAIJ100X270-75 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. The built-in stopper screw lets you dial back the 270mm nominal stroke by up to 75mm, creating a highly flexible 195-270mm usable travel window. This is ideal for product-size changeovers where you need variable end-stops without swapping out the entire actuator.
It features a 25mm carbon steel piston rod and a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to drop in CMSE reed or DMSE electronic switches exactly where the adjusted end-position requires. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 270 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 SAIJ100X270-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×270 | 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 SAIJ100X270-75 Is Used
Product Changeovers
Dial in the 195-270mm travel window on the fly to accommodate different package sizes on a single packaging line.
End-Stop Tuning
Fine-tune the retract position during machine commissioning without adding external mechanical stops.
Adjustable Ejector
Set the exact ejection distance for varying part lengths, using the rear screw to prevent overtravel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-75 the Right Cylinder?
Choose this 100mm bore when a 80mm cylinder falls short on power—delivering 3927N push at 0.5 MPa versus the 80mm's 2513N. The 75mm adjustment range is massive, making it perfect for commissioning equipment that processes multiple product sizes, acting as a variable end-stop. If your application requires holding a load without live air pressure, note that this rear adjuster is only a travel stop, not a lock; you should look at the SAIL or BSAI series instead.
Because the 270mm stroke exceeds 300mm? Actually at 270mm it is under 300mm, but with a 25mm rod and long travel, you should still ensure adequate external guidance to prevent excessive side-loading on the rod. For an exact ISO 15552 replacement match, specify a 100mm bore, 270mm stroke, 75mm adjustment, G1/2 port, PT thread, and your required mounting kit.
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 SAIJ100X270-75 FAQ
It features a rear stopper screw that allows you to shorten the 270mm stroke by up to 75mm, giving an effective adjustable travel window of 195-270mm. The adjuster acts as a physical stop for the retract end and does not lock the load without live air pressure.
The 100mm bore generates 3927N of push force and 3681N of pull force at 0.5 MPa. At the maximum operating pressure of 1.0 MPa, it can deliver up to 801 kgf.
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