Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 280mm 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
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10
The AirTAC SAIJ100X280-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers robust thrust, generating 5497N of push force and 3681N of pull force at 0.7 MPa. By turning the external stopper screw, you can fine-tune the effective travel within a 270-280 mm window, providing precise end-position calibration without swapping out the unit.
This 100 mm bore actuator features a durable carbon steel rod and a G1/2 port. It retains the standard extruded aluminum barrel with sensor grooves on both sides, though it omits the FB, CA, CB, and CR mounting options found on some variants, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2. The integrated rear adjuster acts strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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 SAIJ100X280-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×280 | 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 SAIJ100X280-10 Is Used
Machine Setup Changeover
Dial in the exact 270-280 mm end position during product family changeovers without physically replacing the cylinder or adding external shims.
Variable End Stops
Establish a precise mechanical stop for heavy-duty automated assembly lines where a standard fixed stroke leaves no room for fine-tuning.
End-Position Calibration
Fine-tune the retraction point at commissioning to perfectly align large tooling fixtures, relying on the 10 mm rear adjustment screw.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-10 the Right Cylinder?
Selecting this 100 mm bore actuator makes sense when your application requires substantial force but demands exact end-position tuning during commissioning or product-size changeovers. If you need less thrust, stepping down to an 80 mm bore yields 3518N of push force at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590N. The SAIJ100X280-10 is chosen over a fixed-stroke SAI specifically for its 10 mm adjustment window, allowing you to dial in the 270-280 mm travel range mechanically.
Because the 280 mm stroke exceeds the 300 mm threshold, ensure you provide an external guide to support the load and mitigate side-loading on the 25 mm rod. Remember that the rear stopper only sets the travel end; for load-holding without live pressure, you must integrate an external rod lock, a pilot-operated check valve, or switch to a SAIL or BSAI cylinder. When matching ISO 15552 dimensions, specify the 100 mm bore, 280 mm stroke, 10 mm adjustment, PT port thread, and your required mounting set.
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 SAIJ100X280-10 FAQ
At a 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 280 mm stroke by up to 10 mm, creating a usable 270-280 mm travel window. It sets the travel end but does not lock or hold the load without continuous air pressure.
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