Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20
The AirTAC SAIJ100X300-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers substantial thrust, pushing with 7068N at 0.9 MPa, making it suitable for heavy-duty handling tasks. The extruded aluminum barrel includes dual sensor grooves, and the standard carbon steel rod handles high side loads effectively.
This specific SKU provides a 300 mm nominal stroke with a 20 mm adjustment range, creating a 280-300 mm usable travel window. This built-in rear stopper allows you to fine-tune the retract position at commissioning without adding external physical stops. The unit uses a PT tapered G1/2 port and self-centering air cushions at both ends to decelerate the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAIJ100X300-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SAIJ100X300-20 Is Used
Machine Changeovers
Dial in the 280-300 mm travel window during product size transitions on an assembly line without physically swapping out the actuator.
Heavy Material Handling
Leverage the 7068N push force at 0.9 MPa to shift heavy pallets or chassis components, relying on the robust 25 mm carbon steel rod.
End-Position Tuning
Fine-tune the retract stopper at commissioning to perfect the seating of large parts without machining custom external stop blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-20 the Right Cylinder?
Choose this 100 mm bore when your application requires heavy force, pushing 5497N at 0.7 MPa. If your load is lighter, stepping down to an 80 mm bore yields 3518N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590N at 0.7 MPa. The adjustable stroke is ideal for product-size changeovers on a packaging line, letting you dial in the exact end position without swapping the cylinder.
Because the nominal stroke is 300 mm, an external guide is recommended to prevent rod side-load damage over long unsupported travel. Remember that the rear adjuster and the air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series. This model is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100X300-20 FAQ
At the maximum operating pressure of 0.9 MPa, this 100 mm bore cylinder provides a push force of 7068N and a pull force of 3681N. At 0.5 MPa, it delivers 3927N of push force.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 20 mm from the 300 mm nominal stroke, providing a 280-300 mm usable window. It sets the end position but does not lock the load without live air pressure.
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