Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX270-30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S
The AirTAC SAIJ100X270-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 270 mm stroke that can be dialed back by up to 30 mm, creating a 240-270 mm usable travel window for fine-tuning the retract end position at commissioning.
Built with a SUS304 stainless steel rod (option B), it handles demanding environments while supporting AirTAC CMSE reed and DMSE electronic sensors via its integrated dual-side barrel grooves. The rear adjuster acts purely as a mechanical stop to set deceleration and end-position, meaning it will not hold the load without live air pressure. For position holding without continuous pressure, an external rod lock or related SAIL pneumatic-lock cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S
| 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 SAIJ100BX270-30S Is Used
Machine Changeover
Dial in the 240-270 mm travel window during product size transitions to set new retract positions without replacing the cylinder.
End-Stop Calibration
Fine-tune the final retract position during commissioning using the rear adjuster screw, avoiding the need for external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX270-30S the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires variable end-stops or product-size changeovers without physically swapping cylinders or adding external stopper blocks.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 270 mm stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 270 mm stroke is substantial, the 25 mm rod diameter handles significant side loads, but an external guide is still recommended for heavy unsupported loads to prevent premature seal wear.
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 SAIJ100BX270-30S FAQ
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the nominal 270 mm, providing a usable travel window of 240-270 mm. This stopper sets the end position but does not lock or hold the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SAI Cylinders
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