Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-30 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 SAIJ32BX280-30
The AirTAC SAIJ32X280-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 280 mm stroke and a 30 mm adjustment range, it provides a highly flexible 250-280 mm usable travel window, allowing you to dial in the exact retract end-position during commissioning without swapping out the unit. It delivers 402 N of push thrust at 0.5 MPa and utilizes a SUS304 stainless steel rod for superior corrosion resistance.
This bore 32 size features an extruded aluminum barrel with sensor grooves machined on both sides for direct mounting of CMSE or DMSE switches. The rear adjuster acts purely as a mechanical stop to set the travel end and deceleration point alongside the standard air cushions; it is not a locking device and cannot hold a load without continuous air pressure. For load-holding requirements, a SAIL or BSAI series cylinder is recommended instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-30 |
|---|---|
| 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 SAIJ32BX280-30
| 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 SAIJ32BX280-30 Is Used
Machine Changeover
Quickly reconfigure the retract end-position within the 250-280 mm window when switching production runs without replacing the cylinder.
End-Position Tuning
Fine-tune the exact stopping point during initial commissioning to perfect a process, avoiding the need for external mechanical stops.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in packaging or processing areas where moisture and washdowns are common.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-30 the Right Cylinder?
Choose this 32 mm bore if your application requires up to 402 N of push force at 0.5 MPa, or step up to the 40 mm bore if you need 628 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, whereas a fixed-stroke SAI cylinder is better suited for rigid, unchanging travel requirements. Because the 280 mm stroke is relatively long for this compact bore, external guides are recommended to prevent excessive side-loading on the rod.
To match this ISO 15552 interchangeable cylinder, specify a 32 mm bore, 280 mm stroke, 30 mm adjustment, PT tapered port thread, SUS304 (B) rod material, and no magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts found on some other 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 Adjustable Cylinder SAIJ32 SAIJ32BX280-30 FAQ
At a 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push thrust and 345 N of pull thrust. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 280 mm down to 250 mm. This creates a 30 mm adjustable window for fine-tuning the end position at commissioning, but it functions only as a stop and does not lock the load.
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