Airtac SAIJ100 Adjustable Cylinder SAIJ100X550-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X550-10 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 SAIJ100X550-10
The AirTAC SAIJ100X550-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 540-550 mm usable travel window, allowing you to dial back the nominal 550 mm stroke by up to 10 mm during commissioning. Delivering a robust 3927 N of push force at 0.5 MPa, it is designed for heavy-duty positioning tasks.
This model features a carbon steel piston rod with an M20x1.5 thread, paired with a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches if a magnet is specified later. It offers a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X550-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X550-10 |
|---|---|
| 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 SAIJ100X550-10
| 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 SAIJ100X550-10 Is Used
Machine Setup Fine-Tuning
Dial in the exact retract position within the 540-550 mm window during initial commissioning to align heavy tooling without machining external stoppers.
Product Size Changeover
Quickly adapt a packaging line to new carton dimensions by adjusting the 10 mm travel limit on the fly, minimizing downtime between production runs.
Heavy-Duty Positioning
Leverage the 3927 N push force at 0.5 MPa to move substantial loads into place, using the rear stop to compensate for minor mechanical drift over time.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X550-10 the Right Cylinder?
Choose this 100 mm bore when a 80 mm bore (yielding 2513 N push at 0.5 MPa) cannot provide enough thrust, but a 125 mm bore is excessive. The 10 mm rear adjuster is ideal for fine-tuning the retract end position during machine setup or product changeover without swapping the cylinder or adding external stops. Remember that this rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 550 mm stroke, 10 mm adjustment, G1/2 PT ports, and mounting style. Because the 550 mm stroke is long, the M20x1.5 rod carries higher side-load risks; always use an external guide to prevent rod deflection and premature seal wear.
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 SAIJ100X550-10 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. It can deliver up to 7068 N of push force at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from 550 mm down to 540 mm. This stopper fine-tunes the end position but does not lock the load; live air pressure is still required to hold position.
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