Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-50S 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 SAIJ32BX280-50S
The AirTAC SAIJ32X280-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 280 mm travel back by up to 50 mm, yielding a usable 230-280 mm end-position window. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a 12 mm rod with an M10x1.25 thread. This SKU ships with a SUS304 stainless steel rod (code B) for corrosion resistance and a PT tapered port.
Equipped with a magnet for position sensing, it supports AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-side sensor grooves of the extruded aluminum barrel. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end during commissioning; it is not a lock and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-50S |
|---|---|
| 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 SAIJ32BX280-50S
| 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 SAIJ32BX280-50S Is Used
Machine Changeover
Dial in the 230-280 mm retract stop during product size transitions on a packaging line without adding external spacers.
End-Position Tuning
Fine-tune the retract end-point at commissioning to hit an exact datum, avoiding the need to machine custom spacers.
Variable End Stops
Adjust the travel window on the fly for a conveyor divert arm that must accommodate different carton lengths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-50S the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning without swapping hardware, stepping up from a smaller unit or down from a 40 mm bore (which provides 628 N push force at 0.5 MPa). The adjustable 230-280 mm window is ideal for product changeovers on a shared machine frame. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Because the 280 mm stroke is substantial for a 32 mm bore, the unsupported piston rod is susceptible to side-loading deflection; always guide the load externally to prevent premature seal wear. To replace an ISO 15552 cylinder, match the 32 mm bore, 280 mm stroke, 50 mm adjustment, PT G1/8 port, and the -S magnet requirement.
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 SAIJ32BX280-50S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster acts as a mechanical stop that shortens the 280 mm nominal stroke by up to 50 mm, providing a usable travel window of 230-280 mm. It only sets the end position and does not lock or hold the load without live air pressure.
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