Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30S 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 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 SAIJ100X325-30S
The AirTAC SAIJ100X325-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 295 to 325 mm, allowing you to dial back the stroke by up to 30 mm during machine setup without swapping the cylinder. Equipped with a carbon steel rod and a magnet for position sensing, it generates 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa.
This model features a G1/2 port and operates at speeds between 30 and 800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic sensors. The rear adjuster acts purely as a travel stop to fine-tune deceleration; it does not lock the load, so maintaining position requires live air or an external rod lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30S |
|---|---|
| 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 | 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 SAIJ100X325-30S
| 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 SAIJ100X325-30S Is Used
Machine Changeovers
Dial in the 295-325 mm stroke window during product size transitions to set exact end positions without machining new stopper blocks.
Variable End Stops
Fine-tune the retract position on heavy pushers to accommodate varying package lengths on a packaging line.
Heavy-Duty Positioning
Leverage 7068 N of push force at 0.9 MPa to move heavy pallets while using the rear screw to trim the final resting position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-30S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) lacks sufficient thrust for your heaviest actuators. The adjustable 295-325 mm travel window is ideal for product changeovers where exact end-of-stroke positioning varies slightly, eliminating the need to bolt on external stops. For load-holding without continuous air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a brake.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. It uses a PT tapered port thread and supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 325 mm stroke is relatively long, an external guide is recommended to prevent side-loading damage to the 25 mm rod.
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 SAIJ100X325-30S FAQ
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the 325 mm nominal stroke by up to 30 mm, creating a 295-325 mm travel window. It acts as a mechanical stop for end-position tuning and does not lock the load without live air.
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