Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX550-30 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30
By turning the external rear screw, you can shorten the effective travel by up to 30 mm, creating a precise 520-550 mm usable stroke window without changing the cylinder body. This cylinder features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads.
Because the nominal 550 mm stroke is relatively long, the 25 mm rod diameter and M20x1.5 rod thread provide necessary rigidity, though an external guide is still recommended to manage side loads. The adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30 |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30
| 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 SAIJ100AX550-30 Is Used
Machine Changeover
Dial in the 520-550 mm travel window during product size changes to set new end positions rapidly without physically swapping cylinders or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke during commissioning to compensate for mechanical tolerances or sensor variance, ensuring precise positioning of heavy 100 mm bore loads.
Variable Stop Location
Adjust the stroke length on packaging or conveying lines to accommodate different package sizes on the fly, using the rear screw to set the exact stopping point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-30 the Right Cylinder?
The adjustable stroke is ideal for machine setup and product changeover, allowing you to fine-tune the end stop on the fly rather than swapping out a fixed-stroke SAI cylinder. For any stroke at or above 300 mm, always use an external guide to prevent excessive side-loading on the rod. If your machine requires true load-holding without continuous air pressure, this cylinder is not a lock; you should look at the SAIL (air-released lock) or BSAI (clamp-lock) series instead. To match an ISO 15552 replacement, verify the 100 mm bore, 550 mm stroke, 30 mm adjustment, PT port thread, and the required mounting bracket.
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 SAIJ100AX550-30 FAQ
The rear adjuster screw lets you trim the nominal 550 mm stroke back by up to 30 mm, providing a usable travel window of 520 to 550 mm. This stopper only sets the end position; it does not lock or hold the load without continuous air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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