Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100 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 SAIJ100BX275-100
The AirTAC SAIJ100X275-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 5497N push force at 0.7 MPa. It features a SUS304 stainless steel rod and PT tapered ports. The integrated rear stopper allows you to dial back the 275mm nominal travel, providing a flexible 175-275mm usable stroke window for precise positioning.
Because the adjuster acts purely as a mechanical stop, it decelerates the retract end without holding the load pneumatically. This extruded aluminum barrel includes dual sensor grooves for CMSE or DMSE switches, though this specific SKU is supplied without a magnet. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100 |
|---|---|
| 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 SAIJ100BX275-100
| 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 SAIJ100BX275-100 Is Used
Product Changeovers
Dial in the 175-275mm travel window during format changes on a packaging line, avoiding the need to physically swap out the entire cylinder for different carton sizes.
End-Position Tuning
Fine-tune the retract stop at machine commissioning to perfect the resting position of heavy actuators without adding bulky external stops to the fixture.
Heavy Assembly Pressing
Leverage the 5497N push force at 0.7 MPa to seat large components, using the 100mm adjustment range to accommodate varying part heights on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX275-100 the Right Cylinder?
Choose this 100mm bore when you need heavy thrust that smaller neighbors cannot provide, such as upgrading from a 63mm bore that yields 2182N at 0.7 MPa. The 100mm adjustment window is ideal for product changeovers on a packaging line, letting you shift the end-stop by up to 100mm without swapping the cylinder. For fixed-travel needs without commissioning tweaks, the standard SAI is an alternative. Since the nominal stroke is 275mm, an external guide should be used to manage side loads on the 25mm rod.
To match this ISO 15552 dimensionally interchangeable cylinder, specify a 100mm bore, 275mm stroke, PT port thread, SUS304 rod material, and the 100mm adjustment code. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, consider the SAIL or BSAI series. Operating speed ranges from 30-800 mm/s.
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 SAIJ100BX275-100 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 5145N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear mechanical stopper lets you trim the effective travel back from the 275mm nominal stroke by up to 100mm, creating a 175-275mm usable window. It acts as a physical stop and does not lock the load without live air.
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