Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30 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 SAIJ100X50-30
The AirTAC SAIJ100X50-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 3927N push force at 0.5 MPa and allows you to dial back the 50 mm nominal stroke by up to 30 mm, creating a highly versatile 20 to 50 mm usable travel window for precise machine setup.
The carbon steel piston rod features an M20x1.5 thread, providing a robust interface for high side-load capacity. This model uses a PT tapered port thread and incorporates variable air cushions at both ends to decelerate the load smoothly. The rear adjustment mechanism acts purely as a travel stop, meaning it will not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30 |
|---|---|
| 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 SAIJ100X50-30
| 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 SAIJ100X50-30 Is Used
Machine Changeover
Dial in the exact end-stop position during product size transitions without swapping out the physical cylinder.
Commissioning Calibration
Fine-tune the 20 to 50 mm travel window on-site to perfect the seating force against varying workpieces.
Assembly Pressing
Utilize the 3927N thrust at 0.5 MPa for pressing tasks while trimming back the stroke to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-30 the Right Cylinder?
Choose this 100 mm bore when a 50 mm stroke requires exact end-position tuning during commissioning or product changeover, eliminating the need to swap cylinders or bolt on external stops. If you need less force, stepping down to an 80 mm bore yields 2513N at 0.5 MPa. To match this ISO 15552 interchangeable replacement, specify the 100 mm bore, 50 mm stroke, 30 mm adjustment, PT G1/2 port, and no magnet.
For load-holding applications without live pressure, this plain cylinder is insufficient; consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead. Mounting options include 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 SAIJ100X50-30 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927N and a pull force of 3681N. At the maximum 1.0 MPa pressure, it generates up to 801 kgf of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 50 mm nominal stroke by up to 30 mm, resulting in a usable travel window of 20 to 50 mm. It only sets the end position and does not lock the load without live air pressure.
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