Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX450-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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
- Stroke450 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 SAIJ100AX450-20S
The AirTAC SAIJ100X450-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 450 mm nominal stroke that can be dialed back by up to 20 mm, creating a precise 430-450 mm usable travel window for fine-tuning end positions during commissioning.
This extruded aluminum profile cylinder features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to set the travel end and relies on the integrated air cushions for deceleration; it does not hold the load without live air pressure. Mounting options include the standard SAIJ subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100AX450-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SAIJ100AX450-20S Is Used
Product Changeover
Dial in the 430-450 mm travel window during format changes on a packaging line, shifting the end stop by up to 20 mm without mechanical rework.
End-Stop Tuning
Fine-tune the retract position at commissioning to perfect a pressing operation, using the rear screw to set the exact 450 mm limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-20S the Right Cylinder?
If your setup needs less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590 N. The adjustable stroke is ideal for product changeovers on a line, allowing you to shift the end stop by up to 20 mm without swapping the cylinder or adding external stops.
Because this model features a 450 mm stroke, the 25 mm rod and M20x1.5 thread provide robust support, but an external guide is recommended for long unsupported loads to prevent side-loading damage. To replace an ISO 15552 cylinder, match the 100 mm bore, 450 mm stroke, PT tapered port threads, the desired mounting bracket, and the -S magnet requirement. For applications needing true load-holding without live air pressure, consider the SAIL or BSAI series instead of relying on the rear stopper.
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 SAIJ100AX450-20S FAQ
The rear adjuster screw lets you shorten the 450 mm nominal stroke by up to 20 mm, providing a usable travel window of 430-450 mm. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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