Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S
The AirTAC SAIJ100X50-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 3927N push force at 0.5 MPa and provides a usable travel window of 10-50mm, letting you dial back the 50mm nominal stroke by up to 40mm during commissioning. The extruded aluminum barrel includes dual sensor grooves for precise position detection.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and ships with a PT tapered port thread. The rear adjuster acts purely as a mechanical stop to fine-tune end positions without adding external stops, while the standard mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100BX50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100BX50-40S Is Used
Machine Changeover
Dial in the 10-50mm travel window during product size transitions without swapping the cylinder or repositioning external hard stops.
End-Position Tuning
Fine-tune the retract end-stop at commissioning to absorb mechanical tolerances and achieve exact positioning of high-force tooling.
High-Force Positioning
Leverage 3927N of thrust at 0.5 MPa for heavy stamping or clamping tasks where the exact stroke length needs on-site adjustment.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40S the Right Cylinder?
Select this 100mm bore cylinder when an application requires high thrust combined with variable end-stop positioning. If 3927N of push force is excessive, stepping down to an 80mm bore yields 2513N at 0.5 MPa, whereas moving up to a 125mm bore provides 6136N. The 40mm adjustment range is ideal for product-size changeovers on a line, offering setup flexibility that a fixed-stroke SAI cannot match.
For load-holding without live air pressure, note that this cylinder's rear adjuster is a travel stop and not a lock; consider an SAIL or BSAI cylinder instead. To match this exact configuration for an ISO 15552 replacement, specify the 100mm bore, 50mm stroke, 40mm adjustment, PT ports, SUS304 rod, and the -S magnet for CMSE and DMSE sensors.
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 SAIJ100BX50-40S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. It can reach up to 7068N push force at 0.9 MPa.
The rear adjusting screw acts as a mechanical stop, allowing you to trim the 50mm nominal stroke back by up to 40mm, resulting in a 10-50mm usable travel window. It is a stop, not a lock, and does not hold the load without live air pressure.
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