Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX250-75 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75
The AirTAC SAIJ100X250-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel within a 175-250 mm window. The piston rod is constructed from SUS420J2 stainless steel, offering enhanced corrosion resistance compared to standard carbon steel.
This model uses a G1/2 port and relies on an external stopper screw to set the retract end position precisely during commissioning. It is crucial to note that this rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75 |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75
| 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 SAIJ100AX250-75 Is Used
Variable End-Stop Tuning
Dial in the exact retract distance between 175 and 250 mm during machine setup to accommodate varying material thicknesses without adding external hard stops.
Product Size Changeover
Quickly adjust the stroke end position on a packaging line when switching between different package dimensions, ensuring precise positioning.
Assembly Press Check
Fine-tune the pressing depth during commissioning of an automated assembly station to verify contact force before finalizing the travel limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-75 the Right Cylinder?
Selecting this 100 mm bore adjustable-stroke cylinder makes sense when you need on-the-fly end-position tuning for product changeovers without swapping out the entire actuator.
Because this configuration specifies a 250 mm stroke, you should account for potential side loads and ensure an external guide is used to support any unsupported loads. To match this ISO 15552 interchangeable footprint, confirm your setup requires a 100 mm bore, 250 mm nominal stroke, 75 mm adjustment range, PT tapered G1/2 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting accessories. No magnet is specified, so position sensing via CMSE or DMSE switches is not supported on this specific unit.
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 SAIJ100AX250-75 FAQ
The rear adjuster acts as an external stop that lets you mechanically shorten the 250 mm nominal stroke by up to 75 mm, creating a usable travel window of 175 to 250 mm. It functions only as a travel stop and does not lock or hold the load without live air pressure.
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