Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10
The AirTAC SAIJ100X250-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 240-250 mm usable travel window from its 250 mm nominal stroke. Delivering 3927 N of push force at 0.5 MPa, it handles heavy industrial positioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This model uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The rear adjuster screw acts as a travel stop to fine-tune the retract end position during commissioning. It is not a locking device, so live air is required to hold the load, but it eliminates the need to bolt on external physical stops during machine setup.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAIJ100BX250-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SAIJ100BX250-10 Is Used
Machine Changeover
Dial in the 240-250 mm retract position precisely when switching product sizes on a heavy-duty press, avoiding mechanical stop replacements.
Commissioning Tuning
Fine-tune the end-of-stroke stop during initial setup to absorb mechanical tolerances and achieve exact positioning without shims.
Heavy Material Handling
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or workpieces, using the adjuster to set the exact release point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-10 the Right Cylinder?
Choose this 100 mm bore when your application requires substantial thrust, such as the 3927 N push force at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. The 10 mm adjustable window is ideal for dialing in exact end-of-stroke positions during product changeovers without swapping the cylinder. For fixed-position tasks without fine-tuning needs, a standard SAI cylinder suffices.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 250 mm stroke, PT port threads, and SUS304 rod material. Note that SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. Since no magnet is specified, position sensing requires adding a -S magnet for CMSE reed or DMSE electronic sensors.
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 SAIJ100BX250-10 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 250 mm nominal stroke by up to 10 mm, creating a 240-250 mm travel window. It sets the end position but does not lock the load without live air pressure.
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