Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30 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 SAIJ100X325-30
The AirTAC SAIJ100X325-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position. With a nominal 325 mm stroke and a 30 mm adjustment range, it provides a usable travel window of 295-325 mm. This bore size delivers substantial thrust, pushing 3927 N and pulling 3681 N at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Because this is a made-to-order 325 mm stroke on a 100 mm bore, the 25 mm carbon steel rod and M20x1.5 rod thread must be adequately supported by an external guide to handle potential side loads over the extended travel distance.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30 |
|---|---|
| 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 SAIJ100X325-30
| 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 SAIJ100X325-30 Is Used
Heavy-Duty Positioning
Dial in the 295-325 mm travel window during machine commissioning to achieve exact contact force on large workpieces without adding external stops.
Product Changeover
Quickly adjust the retract end position by up to 30 mm to accommodate different package sizes on an automated packaging line.
Assembly Station Tuning
Leverage the 3927 N push force at 0.5 MPa to press components securely while fine-tuning the stroke length for varied assembly heights.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30 the Right Cylinder?
Choose this 100 mm bore when a smaller 80 mm cylinder lacks the required force, as the 80 mm only provides 2513 N of push force at 0.5 MPa compared to the 3927 N offered here. The adjustable stroke is ideal for machine setups requiring precise end-position tuning during commissioning or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 325 mm stroke, 30 mm adjustment, PT tapered port thread, and mounting style. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. This configuration uses a standard carbon steel rod and does not include a magnet for sensors.
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 SAIJ100X325-30 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from the nominal 325 mm down to 295 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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