Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-20 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 SAIJ100X290-20
The AirTAC SAIJ100X290-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. Its external stopper screw allows you to fine-tune the effective travel within a 270-290mm window, eliminating the need to swap physical cylinders during product changeovers. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is specified later.
This 100mm bore unit utilizes a robust 25mm carbon steel rod with an M20x1.5 thread, paired with G1/2 PT ports and 36mm air cushions at both ends. Because the rear adjuster acts strictly as a travel stop and not a locking device, it decelerates the piston without holding the load under lost air pressure. For position-holding requirements without live air, an external rod lock or a related SAIL pneumatic lock cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-20 |
|---|---|
| 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 SAIJ100X290-20
| 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 SAIJ100X290-20 Is Used
Machine Setup Changeover
Dial in the 270-290mm travel window during product family transitions to perfectly position parts without machining new hard stops.
Variable End-Stop Diverter
Fine-tune the retract position on the fly for sorting different package sizes on a packaging line, utilizing the 3927N baseline thrust.
Press Positioning
Adjust the exact bottoming point of a light pressing operation at commissioning to accommodate material thickness variations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-20 the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder (providing 3518N push at 0.7 MPa) lacks the necessary thrust, but you want to avoid the heavier 125mm class. The 20mm adjustment range is ideal for dialing in exact end positions at commissioning without fabricating external stop blocks, offering flexibility that a fixed-stroke SAI cannot match. When ordering a replacement, verify the 290mm stroke, 20mm adjust code, G1/2 PT port, and your required mounting style.
Since this cylinder features a 290mm stroke, the 25mm rod should still be guided if subjected to significant lateral loads to prevent premature seal wear. Note that SAIJ supports a specific subset of ISO 15552 mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Operating speed ranges from 30-800mm/s.
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 SAIJ100X290-20 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 5146N of pull force. At the maximum 1.0 MPa pressure, it achieves up to 801 kgf of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 290mm stroke by up to 20mm, providing an effective travel range of 270-290mm. It only sets the end position and does not lock the load without live air pressure.
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