Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S
The AirTAC SAIJ100X275-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling a usable travel window of 175 to 275 mm. It delivers robust thrust, generating 5497 N of push force at 0.7 MPa and up to 7068 N at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for position detection.
This model uses a SUS304 stainless steel piston rod (option B) for superior corrosion resistance and features PT tapered port threads (G1/2). The rear adjuster acts purely as a mechanical stop to fine-tune end positions during commissioning; it does not lock the load or hold position without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAIJ100BX275-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SAIJ100BX275-100S Is Used
Machine Changeover
Dial in the exact end-stop for different product sizes on a packaging line without physically swapping out the cylinder.
End-Position Tuning
Fine-tune the retract stroke during initial commissioning to compensate for mechanical tolerance stack-up in the fixture.
Variable Diverter Stroke
Adjust the actuation length on the fly to accommodate varying package dimensions moving down a conveyor system.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100S the Right Cylinder?
Select this 100 mm bore cylinder when your application requires 7068 N of push force at 0.9 MPa but demands on-the-fly end-position tuning. If your process needs less force, stepping down to an 80 mm bore yields 4523 N at 0.9 MPa, while a 125 mm bore provides 11045 N for heavier loads. The 100 mm adjustment range here is ideal for product-size changeovers, eliminating the need to swap cylinders or bolt on external stops.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 275 mm stroke, PT port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interface. Because the stroke is 275 mm, ensure an external guide supports the load to prevent excessive side-loading on the SUS304 rod. The -S magnet works seamlessly with AirTAC CMSE reed switches and DMSE solid-state sensors.
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 SAIJ100BX275-100S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm, providing a usable travel window of 175 to 275 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
At a standard operating pressure of 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At the maximum rated pressure of 0.9 MPa, the push force increases to 7068 N.
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