Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX325-30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke325 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S
Its 325mm nominal stroke can be dialed back by up to 30mm, creating a precise 295-325mm usable travel window for fine end-position tuning. This adjustability allows you to dial in the exact retract distance during commissioning or product changeovers without swapping the cylinder or adding external stops.
This SKU features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. Because the stroke is 325mm, the M20x1.5 rod thread and 25mm rod diameter should be paired with an external guide to manage side loads on long travels. The rear adjuster acts purely as a travel stop, meaning live air is required to hold the load in place.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S
| 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 SAIJ100AX325-30S Is Used
Product Changeover
Dial in the 295-325mm travel window during format size changes on a packaging line without physically swapping the actuator.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to perfect the seating of heavy 100mm bore tooling.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-30S the Right Cylinder?
If you need less force, stepping down to an 80mm bore yields 3518N at 0.7 MPa, whereas moving up to a 125mm bore provides 8590N at 0.7 MPa. Choose the SAIJ adjustable-stroke design over a fixed SAI model when machine setups demand a tunable retract window rather than a hard mechanical limit.
For an exact ISO 15552 replacement match, ensure the 100mm bore, 325mm stroke, 30mm adjustment, PT tapered port, and -S magnet are specified. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 styles, omitting FB, CA, CB, and CR. Since the stroke exceeds 300mm, an external guide is recommended to prevent excessive rod side-loading. The rear adjuster is a stop, not a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ100AX325-30S FAQ
The rear adjusting screw acts as a mechanical stop that shortens the effective stroke by up to 30mm. This creates a usable travel window of 295-325mm, allowing you to fine-tune the retract position without changing the cylinder.
At the maximum 0.9 MPa pressure, the push force increases to 7068N.
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