Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50
The AirTAC SAIJ100X290-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 7068N of push force at 0.9 MPa. By turning the external stopper screw, you can dial back the nominal 290mm stroke by up to 50mm, creating a precise 240-290mm usable travel window. This on-machine fine-tuning eliminates the need to swap cylinders or bolt on external stops during product changeovers.
The 25mm carbon steel piston rod and M20x1.5 thread provide high rigidity, though at 290mm of travel an external guide is recommended to manage side loads. The extruded aluminum barrel features sensor grooves on both sides for CMSE reed or DMSE electronic switches. It uses a G1/2 port and variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 290 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 SAIJ100X290-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×290 | 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 SAIJ100X290-50 Is Used
Product Changeovers
Quickly alter the effective stroke from 240 to 290mm to accommodate different package sizes on a packaging line without changing the cylinder.
End-Stop Calibration
Fine-tune the exact retract position during machine setup to perfect pressing or clamping operations without adding external physical stops.
Heavy-Duty Positioning
Leverage the 7068N push force to move heavy pallets or fixtures, using the adjustable stroke to compensate for mechanical tolerance stack-up.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-50 the Right Cylinder?
Choose this 100mm bore when a 80mm cylinder's 4523N push at 0.9 MPa is insufficient, but a 125mm bore is oversized. The 50mm adjustment range is ideal for machinery requiring frequent end-position tweaks without mechanical modifications. Unlike a fixed-stroke SAI, this SAIJ variant allows you to set the exact retract stop during commissioning.
For a drop-in ISO 15552 replacement, match the 100mm bore, 290mm stroke, 50mm adjustment, G1/2 PT port, and your preferred mounting bracket from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is 290mm, ensure proper external guidance to prevent rod side-loading. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, specify an AirTAC SAIL or BSAI cylinder.
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 SAIJ100X290-50 FAQ
At 0.9 MPa operating pressure, this 100mm bore cylinder provides 7068N of push force and 6648N of pull force. At the maximum 1.0 MPa, it delivers up to 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 290mm nominal stroke down to 240mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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