Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30
The AirTAC SAIJ100X325-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927N push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance. By turning the external stopper, you can fine-tune the effective travel down from the 325mm nominal stroke, creating a precise 295-325mm usable window to dial in end positions during commissioning.
This model features a PT tapered G1/2 port and dual-side sensor grooves for mounting CMSE or DMSE switches. The adjustment mechanism acts purely as a travel stop to set deceleration limits and does not hold the load without live air pressure. For secure load-holding in power-off scenarios, consider an external rod lock or the AirTAC SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 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 SAIJ100BX325-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×325 | 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 SAIJ100BX325-30 Is Used
Machine Changeover
Quickly adapt end positions for different product sizes on a single line by dialing the rear adjuster within the 295-325mm window.
End-Stop Tuning
Fine-tune the retract stroke during commissioning without adding external mechanical stops or changing the cylinder mounting.
Heavy Assembly Pressing
Leverage the 3927N push force at 0.5 MPa for pressing and clamping tasks that require exact, adjustable travel limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30 the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder (providing 2513N push at 0.5 MPa) is insufficient, but a 125mm bore is oversized. The 30mm adjustment range is ideal for product changeovers, allowing you to reposition the end stop without swapping the cylinder or adding external bumpers. When replacing an ISO 15552 unit, match the 325mm stroke, 30mm adjuster, PT G1/2 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface.
Because the 325mm stroke is relatively long, the 25mm rod diameter should still be paired with an external guide to prevent side-loading damage on the bearing. Note that the rear adjuster and air cushions only manage end-of-stroke deceleration; they do not function as a brake.
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 SAIJ100BX325-30 FAQ
The rear adjuster acts as a mechanical stopper that trims the retract stroke. For this model, you can shorten the 325mm nominal stroke by up to 30mm, providing an adjustable travel window of 295 to 325mm.
At 0.5 MPa operating pressure, the SAIJ100X325-30 provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
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