Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50 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 SAIJ100X300-50
The AirTAC SAIJ100X300-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 300 mm stroke that can be dialed back by up to 50 mm, yielding a usable travel window of 250-300 mm for precise end-position calibration. Delivering a robust 7068 N of push force at 0.9 MPa, it handles heavy loads while maintaining standard ISO 15552 mounting dimensions.
This extruded aluminum barrel features sensor grooves on both sides for CMSE reed or DMSE electronic switches. The 25 mm carbon steel rod and M20x1.5 thread provide high structural rigidity, though at 300 mm of travel, external guidance is recommended to manage side loads. The rear adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50 |
|---|---|
| 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 SAIJ100X300-50
| 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 SAIJ100X300-50 Is Used
Machine Setup & Changeover
Dial in the exact retract position during product line changeovers using the 50 mm adjustment window, avoiding mechanical rebuilds.
Variable End-Stop Diverter
Adjust the stroke on the fly to meet varying package sizes on a conveyor system, ensuring precise positioning without cylinder swaps.
Heavy Assembly Press
Leverage the 7068 N push force at 0.9 MPa to seat heavy components, tuning the final 250-300 mm travel distance to protect the workpiece.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-50 the Right Cylinder?
Select this 100 mm bore when your application requires substantial thrust—stepping down to an 80 mm bore yields 4523 N at 0.9 MPa, which may be insufficient for heavy moving assemblies. The 50 mm adjustment range is perfect for product changeovers, allowing you to fine-tune the retract position without swapping cylinders or adding external stops. For load-holding without continuous air pressure, pair this cylinder with a SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock, as the adjuster only sets the travel end.
When matching ISO 15552 replacements, verify the 100 mm bore, 300 mm stroke, 50 mm adjustment, G1/2 PT port, and your required mounting bracket from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. FB, CA, CB, and CR mounts are omitted from this adjustable series.
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 SAIJ100X300-50 FAQ
At 0.9 MPa operating pressure, this 100 mm bore cylinder provides 7068 N of push force and 3681 N of pull force. The maximum thrust is 801 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that trims the effective stroke back by up to 50 mm, creating a 250-300 mm usable travel window. It decelerates the end position but does not lock the load without live air pressure.
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