Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S
The AirTAC SAIJ100X180-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 160-180 mm usable travel window, allowing you to dial back the nominal 180 mm stroke by up to 20 mm during commissioning. This bore delivers substantial thrust, offering 7068 N of push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
This unit includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance. The integrated magnet (-S) supports position sensing via AirTAC CMSE reed and DMSE electronic switches fitted into the dual-side sensor grooves. The rear screw acts purely as a travel stop to fine-tune the end position, meaning it cannot hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAIJ100AX180-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SAIJ100AX180-20S Is Used
Machine Changeover
Dial in the exact retract distance within the 160-180 mm window during product size changes without physically replacing the cylinder or repositioning hard stops.
End-Position Tuning
Fine-tune the final resting position of heavy actuators at commissioning, absorbing mechanical tolerances using the built-in rear stopper rather than adding external hardware.
Heavy Payload Positioning
Leverage the 7068 N push force at 0.9 MPa to shift heavy assemblies, using the adjustable end-stop to safely set the precise retraction limit for varying assembly depths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-20S the Right Cylinder?
Select this 100 mm bore when an application requires high force—up to 7068 N at 0.9 MPa—combined with variable end-stops. If your process needs less thrust, stepping down to an 80 mm bore yields 4523 N at the same pressure. The adjustable-stroke design is chosen over a fixed SAI cylinder when you need to fine-tune the retract distance on the fly without adding external stops or swapping components.
For a true ISO 15552 replacement match, verify the 100 mm bore, 180 mm stroke, 20 mm adjustment range, PT G1/2 port thread, and the -S magnet option. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 180 mm stroke is relatively short for this bore, side-load concerns are minimal, but an external guide is still recommended for heavy lateral loads.
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 SAIJ100AX180-20S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, providing a usable travel window of 160-180 mm. This allows you to set the exact retract end-position during setup without swapping cylinders. The adjuster functions as a mechanical stop and does not lock the load without live air pressure.
At 0.9 MPa operating pressure, the SAIJ100X180-20-S generates 7068 N of push force and 3681 N of pull force. It is dimensionally interchangeable per ISO 15552 and uses a PT G1/2 port thread.
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