Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX550-20S 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 SAIJ100AX550-20S
The AirTAC SAIJ100X550-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 530 to 550 mm. The integrated magnet (-S) pairs directly with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side extruded barrel grooves.
This variant features a SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance and uses a PT tapered port thread. The rear stopper mechanism allows precise end-position tuning during commissioning without adding external stops. Note that the adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-20S |
|---|---|
| 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 SAIJ100AX550-20S
| 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 SAIJ100AX550-20S Is Used
Precision Press Fit
Dial in the exact 530-550 mm insertion depth for press-fitting components without swapping physical stopper blocks on the machine.
Product Changeover
Quickly adjust the rear stopper to accommodate varying package sizes on a packaging line, minimizing downtime between production runs.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-20S the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm variant significantly increases thrust, stepping up from 3518 N to 5497 N at 0.7 MPa. The adjustable 20 mm window is ideal for applications requiring exact end-position calibration during product changeovers. For load-holding without continuous air pressure, an external rod lock or the related SAIL pneumatic lock cylinder is required, as the SAIJ adjuster is not a brake.
Because the 550 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the SUS420J2 rod. To match this ISO 15552 dimensionally interchangeable cylinder, specify the 100 mm bore, 550 mm stroke, 20 mm adjustment, PT port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ100AX550-20S FAQ
The rear adjuster screw lets you shorten the nominal 550 mm stroke by up to 20 mm, creating a 530 to 550 mm travel window. It acts as a mechanical stop for end-position tuning and is not a locking device.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SAI Cylinders
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