Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S
The AirTAC SAIJ100X50-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a substantial 3927N push force at 0.5MPa (7068N at 0.9MPa) and features a 50mm nominal stroke that can be dialed back up to 50mm. This creates a highly versatile 0 to 50mm usable travel window, allowing you to set exact end positions without adding external stops. The carbon steel rod and M20x1.5 thread handle high side loads well, and the integrated -S magnet works directly with CMSE reed and DMSE electronic sensors.
Because the adjuster functions as a hard stop rather than a lock, it cannot hold loads without live air pressure—use SAIL or BSAI cylinders if fail-safe holding is required. This extruded aluminum profile cylinder supports a speed range of 30-800mm/s and uses PT tapered port threads. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100X50-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100X50-50S Is Used
Variable End-Stop Tuning
Dial in the exact retract position from 0 to 50mm during machine commissioning to accommodate different product sizes without changing the cylinder.
High-Force Changeover
Leverage the 7068N push force at 0.9MPa to move heavy fixtures, using the rear adjuster to quickly reset the stroke limit for new production runs.
Sensor-Ready Positioning
Utilize the built-in -S magnet with CMSE or DMSE switches to confirm end-of-stroke positions accurately while fine-tuning the travel limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50S the Right Cylinder?
Choose this 100mm bore when a 63mm bore (2182N push at 0.7MPa) is insufficient for your load, but a 125mm bore is oversized. The 50mm adjustment range is ideal for product changeovers on a line, letting operators fine-tune the retract end-position during commissioning rather than swapping out a fixed-stroke SAI cylinder. To replace this ISO 15552 cylinder, match the 100mm bore, 50mm stroke, 50mm adjustment, PT G1/2 port, and the -S magnet requirement.
Although the 25mm rod provides excellent rigidity, any application approaching or exceeding 300mm of total travel requires an external guide to prevent side-load damage. For load-holding without continuous air pressure, select an external rod lock or a pilot-operated check valve.
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 SAIJ100X50-50S FAQ
It provides 3927N of push force and 3681N of pull force at 0.5MPa. At the maximum operating pressure of 1.0MPa, the push force reaches 801kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel anywhere within a 0 to 50mm window. It sets the end position but does not lock the load without live air pressure.
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