Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX325-20 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 SAIJ100AX325-20
The AirTAC SAIJ100X325-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 325 mm stroke with a 20 mm adjustment range, creating a precise 305-325 mm usable travel window for dialing in end positions. In this configuration, the piston rod is built from SUS420J2 stainless steel (code A) for superior corrosion resistance, and the air supply connects via PT tapered threads.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20 |
|---|---|
| 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 SAIJ100AX325-20
| 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 SAIJ100AX325-20 Is Used
Machine Changeover
Dial in the exact end-stop distance when switching a production line between product sizes, using the 20 mm travel window to avoid mechanical rebuilds.
Material Diverting
Adjust the stroke of a heavy-duty diverter arm on the fly to accommodate varying package lengths on a conveyor line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX325-20 the Right Cylinder?
The adjustable stroke is ideal for machine setup and product changeover, allowing you to fine-tune the retract position without swapping cylinders or adding external stops. Because the 325 mm stroke is relatively long, ensure you provide an external guide to prevent excessive side loading on the rod.
When specifying an ISO 15552 replacement, match the 100 mm bore, 325 mm stroke, 20 mm adjustment, PT port thread, and the required mounting accessory. Note that this cylinder does not hold its load without live air pressure; the rear adjuster is a travel stop, not a lock. For true position holding, consider the SAIL or BSAI series, or use an external pilot-operated check valve.
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 SAIJ100AX325-20 FAQ
The rear adjuster acts as a stopper that trims the effective travel back by up to 20 mm, creating a usable 305-325 mm window. It sets the end position but does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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