Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20
The AirTAC SAIJ100X150-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a nominal 150 mm travel that can be dialed back by up to 20 mm, creating a precise 130 to 150 mm usable stroke window. This built-in adjustability allows you to fine-tune the retract end position at commissioning without bolting on external stops or swapping the cylinder.
In the 100 mm bore class, this actuator delivers substantial thrust, generating 5497 N of push force and 3681 N of pull force at a 0.7 MPa operating pressure. It features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic sensors if a magnet is added later.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100AX150-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SAIJ100AX150-20 Is Used
Machine Changeover
Dial in the retract stroke by up to 20 mm during product-size changeovers to accommodate varying material lengths without replacing the actuator.
End-Stop Calibration
Fine-tune the final end position during machine commissioning using the rear adjuster, ensuring precise placement of heavy 100 mm bore tooling.
Variable Positioning
Set custom travel windows between 130 and 150 mm for automated lines that process multiple product sizes requiring different stroke endpoints.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX150-20 the Right Cylinder?
Select this 100 mm bore adjustable-stroke cylinder when your application requires high thrust combined with variable end-position tuning. If you need slightly less force, stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, whereas moving up to a 125 mm bore increases it to 6136 N. The SAIJ100X150-20 is chosen over a fixed SAI cylinder when machine setups require product-size changeovers or exact end-stop tweaking during commissioning.
Because the 150 mm stroke is below the 300 mm threshold, side-load risks are moderate, but an external guide is still recommended for heavy lateral loads. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an external rod lock, a pilot-operated check valve, or AirTAC SAIL and BSAI clamp-lock cylinders. This model uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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 SAIJ100AX150-20 FAQ
At a 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf of push force.
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke by up to 20 mm from the nominal 150 mm, providing a usable travel window of 130 to 150 mm. It only decelerates and sets the travel end; it does not lock the load without live air pressure.
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