Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S 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 SAIJ32AX280-50S
The AirTAC SAIJ32X280-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 280mm nominal stroke that can be fine-tuned down by up to 50mm, creating a precise 230-280mm usable travel window for product changeovers.
This variant includes an -S magnet for CMSE reed and DMSE electronic sensors, utilizing the dual sensor grooves on the extruded aluminum barrel. It features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and uses PT tapered port threads with a G1/8 connection.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S |
|---|---|
| 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 SAIJ32AX280-50S
| 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 SAIJ32AX280-50S Is Used
Product Changeover
Dial in the 230-280mm travel window during machine setup to accommodate different product lengths without changing the cylinder.
End-Position Tuning
Fine-tune the retract end position at commissioning to achieve precise mechanical alignment without adding external stopper blocks.
Sensor-Driven Sorting
Leverage the -S magnet with DMSE electronic sensors to trigger diverter arms accurately within the adjusted travel range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S the Right Cylinder?
Choose this 32mm bore when you need 402N push thrust at 0.5 MPa with on-the-fly end-position tuning; step up to the 40mm bore if your application requires 628N. The adjustable rear stopper lets you dial in the 230-280mm travel window during commissioning without adding external stops or swapping a fixed-stroke SAI cylinder. Remember that the rear adjuster functions only as a travel stop, not a lock, so it will not hold the load without live air pressure.
Because this 280mm stroke is relatively long for a 32mm bore, the 12mm rod and M10x1.25 thread still require external guiding to prevent excessive side-loading. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. For exact ISO 15552 interchangeability, match the 32mm bore, 280mm stroke, 50mm adjustment, PT G1/8 port, and -S magnet.
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 SAIJ32AX280-50S FAQ
At 0.5 MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At 0.7 MPa, the push force increases to 563N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 280mm nominal stroke down to 230mm. It only sets the end position and does not lock the load without air pressure.
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