Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm 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
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10
The AirTAC SAIJ100X550-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 540-550 mm usable travel window, allowing you to dial back the 550 mm nominal stroke by up to 10 mm during commissioning. Operating at 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, supported by a robust 25 mm piston rod.
This model features a SUS304 stainless steel rod for superior corrosion resistance and carries a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without swapping cylinders, but it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 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 SAIJ100BX550-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SAIJ100BX550-10 Is Used
Precision End-Stop Tuning
Dial in the exact 540-550 mm travel window during machine commissioning to perfect positioning without fabricating custom external stopper blocks.
Product Size Changeover
Quickly adapt the cylinder's effective stroke on packaging lines when switching to a different product size, minimizing downtime.
Heavy-Duty Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures, using the 10 mm adjustment to compensate for mechanical wear over time.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-10 the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires precise end-position tuning or product changeover flexibility without adding external stops. If you need higher force, stepping up to the 125 mm bore yields 6136 N at 0.5 MPa; if 3927 N is excessive, the 80 mm bore provides 2513 N. For load-holding without continuous air pressure, consider the SAIL or BSAI series, as this adjuster is a stop, not a lock.
Because the 550 mm stroke is substantial, the 25 mm rod and M20x1.5 rod thread provide rigidity, but an external guide is highly recommended to prevent side-load damage on long unsupported travels. This SAIJ cylinder uses the reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552. Ensure your setup matches the PT port thread and G1/2 port size.
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 SAIJ100BX550-10 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the 550 mm nominal stroke by up to 10 mm. This creates a 540-550 mm usable travel window for fine-tuning at commissioning. The adjuster is a stop, not a lock, so it cannot hold the load without live air pressure.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. The operating speed range is 30-800 mm/s. It features a G1/2 port and a SUS304 stainless steel rod for corrosion resistance.
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