Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S
The AirTAC SAIJ100X140-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 90-140 mm usable travel window, allowing you to dial back the nominal 140 mm stroke by up to 50 mm during commissioning. Delivering a robust 5497 N push force at 0.7 MPa, it handles demanding positioning tasks without needing external stops.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a position magnet (-S) compatible with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT tapered ports ensure a secure pneumatic connection.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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 SAIJ100AX140-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100AX140-50S Is Used
Product Changeover
Quickly reconfigure the 90-140 mm travel window on packaging lines when switching between different carton sizes without replacing the actuator.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to achieve exact pressing or clamping forces without adding external mechanical stops.
Heavy Duty Positioning
Leverage the 5497 N push force at 0.7 MPa to move and position heavy assemblies along an automated conveyor or assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-50S the Right Cylinder?
Select this 100 mm bore when you need substantial thrust—stepping up from a 63 mm bore gives you 2182 N at 0.5 MPa, while stepping down to an 80 mm bore yields 3518 N at 0.7 MPa. The adjustable stroke is ideal for product-size changeovers, letting you fine-tune the end position without swapping the cylinder. Since the 140 mm stroke is under 300 mm, side-load risks are moderate, but always ensure proper guiding for heavy loads.
For ISO 15552 replacement matching, verify the 100 mm bore, 140 mm stroke, 50 mm adjustment, PT port threads, and the -S magnet. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the AirTAC SAIL/BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100AX140-50S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides a push force of 5497 N and a pull force of 3681 N. At 0.5 MPa, the push force is 3927 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from the nominal 140 mm down to 90 mm. It sets the travel end but does not lock the load without continuous air pressure.
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