Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S
The AirTAC SAIJ100X90-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 3927 N of push force at 0.5 MPa and features a carbon steel rod with an M20x1.5 thread. Because it carries the -S option, it includes a built-in magnet for non-contact position sensing using CMSE reed or DMSE electronic switches.
The -20 adjustment code lets you dial back the nominal 90 mm stroke by up to 20 mm, creating a precise 70-90 mm usable travel window. This built-in stopper allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel provides standard ISO 15552 mounting interchangeability, and the dual-side sensor grooves keep your DMSE electronics fully protected from physical impact.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 90 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 SAIJ100X90-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×90 | 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 SAIJ100X90-20S Is Used
Product Changeovers
Dial in the 70-90 mm travel window during format changes to accommodate varying package sizes without replacing the actuator.
Machine Setup Tuning
Use the rear stopper to fine-tune the exact retract position during commissioning, eliminating the need to add external shims.
End-Stop Calibration
Adjust the effective stroke on the fly to synchronize multiple cylinders on an assembly line without altering the base mounting footprint.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X90-20S the Right Cylinder?
Choose this 100 mm bore when an 80 mm cylinder (2268 N pull at 0.5 MPa) lacks the power for your load, but a 125 mm bore is physically too large. The adjustable 70-90 mm travel window is ideal for product changeovers on a line, letting you reset the retract end-stop on the fly instead of machining new hard stops. If your process requires holding a load without live air pressure, note that this rear adjuster is strictly a travel stop, not a lock; you would need an SAIL or BSAI cylinder, or an external rod lock.
For an exact ISO 15552 replacement, match the 100 mm bore, 90 mm stroke, 20 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is under 300 mm, the 25 mm rod handles normal side loads well without requiring 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 SAIJ100X90-20S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. It can reach up to 801 kgf at its maximum 1.0 MPa pressure rating.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 90 mm nominal stroke by up to 20 mm. This creates a 70-90 mm usable travel window for fine-tuning end positions at commissioning without swapping the cylinder.
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