Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX325-20S 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 SAIJ100AX325-20S
The AirTAC SAIJ100X325-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 305 to 325 mm for precise end-position tuning. This variant features a SUS420J2 stainless steel rod and includes a magnet for position sensing.
Because the stroke exceeds 300 mm, the 25 mm rod diameter should be paired with an external guide to manage side loads on long extensions. The rear adjuster acts purely as a travel stop to fine-tune the retract position during commissioning or product changeovers, without requiring a cylinder swap. It is not a locking device, so load holding without live air requires a separate SAIL or BSAI variant.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20S |
|---|---|
| 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 SAIJ100AX325-20S
| 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 SAIJ100AX325-20S Is Used
Heavy-Duty Forming Press
Dials in the exact 305-325 mm retract stop during tooling setup, ensuring precise clamp positioning without swapping out the entire actuator.
Pallet Routing Diverter
Adjusts the stroke end-point on the fly to accommodate different pallet depths on the line, using the 20 mm trim to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20S the Right Cylinder?
Select this 100 mm bore cylinder when an application demands high thrust (3927 N at 0.5 MPa) alongside a variable end-stop; if you need less force, stepping down to the 80 mm bore yields 2513 N. Choose the SAIJ adjustable-stroke design over a fixed SAI model when you need to trim the retract distance by up to 20 mm during machine setup without adding external stops. This SKU uses PT tapered ports and supports mounting options Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
For exact ISO 15552 replacement matching, verify the 100 mm bore, 325 mm nominal stroke, 20 mm adjustment, PT port thread, and the -S magnet requirement. The integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors mounted in the dual-side barrel grooves. Remember that the rear adjuster only decelerates and stops the piston; it does not hold the load pneumatically.
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 SAIJ100AX325-20S FAQ
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective stroke from its 325 mm nominal length, creating a 305-325 mm travel window. It functions as a hard stop for positioning, not a lock.
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