Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 280mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke280 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S
The AirTAC SAIJ32X280-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 280 mm stroke that can be dialed back by up to 75 mm, yielding a usable travel window of 205-280 mm. Delivering 402 N of push force at 0.5 MPa, this 32 mm bore unit handles precise positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection mounting.
This configuration features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and carries the -S magnet option for use with AirTAC CMSE reed and DMSE electronic sensors. The PT tapered port threads match the standard G1/8 air connection. Because the rear adjuster acts strictly as a mechanical stop to set the end position, it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×280 | 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 Adjustable Cylinder SAIJ32 SAIJ32AX280-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance between 205 and 280 mm during machine commissioning to accommodate different product sizes without mechanical rebuilds.
Product Changeover
Quickly adjust the stroke stop on packaging lines when switching between formats, saving downtime compared to physically replacing fixed-stroke cylinders.
Sensor-Ready Positioning
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches exactly where needed across the adjusted travel range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-75S the Right Cylinder?
Choose this adjustable-stroke model when an application requires fine-tuning the retract end position during commissioning or product changeovers without swapping cylinders or adding external stops. If your setup needs less force, stepping down is not an option below 32 mm in this line, but stepping up to a 40 mm bore yields 628 N at 0.5 MPa. For load-holding without continuous air pressure, a plain SAIJ is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 280 mm stroke, 75 mm adjustment range, PT port type, and -S magnet. Given the 280 mm stroke is approaching the mid-range of standard lengths, ensure your mounting choice from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) adequately supports the load. For any stroke of 300 mm or more on this bore size, adding an external guide is critical to prevent excessive side-loading on the 12 mm rod and M10x1.25 rod thread.
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 Adjustable Cylinder SAIJ32 SAIJ32AX280-75S FAQ
The rear adjusting screw acts as a mechanical stopper that shortens the effective stroke by up to 75 mm. This creates a usable travel window of 205 to 280 mm, allowing you to set the exact retract position without changing the cylinder.
At 0.5 MPa operating pressure, the SAIJ32X280-75-S provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
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