Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 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 SAIJ100AX55-50
The AirTAC SAIJ100X55-50 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster. It features a 100mm bore, a 55mm nominal stroke, and a 50mm adjustment range, yielding a usable travel window of 5 to 55mm. This wide window lets you fine-tune the retract end-position during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches.
It uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel end; it does not lock or hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAIJ100AX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAIJ100AX55-50 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 5 to 55mm window during machine setup, eliminating the need to machine custom spacers for every new product run.
Product Size Changeover
Quickly adapt a packaging or clamping station to different material thicknesses by turning the rear adjustment screw, reducing downtime between production batches.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-50 the Right Cylinder?
Choose this 100mm bore cylinder when you need higher force than a neighboring 80mm model (2513N at 0.5MPa) but want to avoid the bulk of a 125mm unit. An adjustable stroke is highly beneficial for machines that process varying product sizes, as you can dial in the exact end-stop on the fly rather than swapping out a fixed-stroke SAI cylinder. To match this ISO 15552 cylinder for a replacement, verify the 100mm bore, 55mm stroke, PT G1/2 port, and the chosen mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 55mm stroke is relatively short, side-loading is less of a concern than with long-stroke units, but you should still ensure the load is guided to prevent rod binding. For applications requiring the load to be held in place without continuous air pressure, note that this cylinder's adjuster is not a brake; you would need to look at the SAIL air-released lock or BSAI clamp-lock series instead.
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 SAIJ100AX55-50 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke. For this model, the 55mm nominal stroke can be dialed back by up to 50mm, providing a usable travel window of 5 to 55mm. It only sets the travel end and does not hold the load without live air pressure.
At 0.7MPa, the push force increases to 5497N.
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