Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-100S 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 SAIJ100X325-100S
The AirTAC SAIJ100X325-100-S is a double-acting ISO 15552 profile cylinder with a rear mechanical stopper that allows you to trim the effective stroke. With a 325 mm nominal stroke and a 100 mm adjustment range, you can dial the usable travel window down to 225 mm during commissioning without adding external stops. It delivers 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa.
This model includes a magnet for CMSE reed and DMSE solid-state sensors, which ride cleanly in the dual-side sensor grooves of the extruded aluminum barrel. The 25 mm carbon steel piston rod and M20x1.5 rod thread provide robust resistance to side loads, though at 325 mm of travel an external guide is recommended for heavy off-center loads. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-100S |
|---|---|
| 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 SAIJ100X325-100S
| 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 SAIJ100X325-100S Is Used
Product Changeover
Dial the rear stopper back by up to 100 mm to quickly adapt the end-of-stroke position for different product lengths on the same line.
Machine Setup Tuning
Fine-tune the 225-325 mm travel window during commissioning without physically swapping the cylinder or adding external stop blocks.
Variable End Stops
Use the 7068 N thrust at 0.9 MPa to push heavy fixtures while maintaining a customizable retraction point for multi-format assembly stations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X325-100S the Right Cylinder?
Choose this 100 mm bore if you need higher thrust than the 80 mm bore (2513 N at 0.5 MPa) but less than the 125 mm class (6136 N). The adjustable stroke is ideal for machine changeovers where end-position tuning varies by product size. If you need true load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ rear adjuster acts only as a travel stop, not a brake.
For an exact ISO 15552 replacement match, configure your SAIJ with a 325 mm stroke, 100 mm adjustment, PT tapered ports, and the -S magnet option. Because the stroke is 325 mm, ensure your mounting setup includes an external guide to manage side loads and prevent rod binding over long travel distances.
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 SAIJ100X325-100S 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 acts as a mechanical stop that lets you shorten the 325 mm nominal stroke down to a 225 mm minimum. It sets the travel end but does not lock or hold the load without live air pressure.
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