Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-75 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 SAIJ32BX280-75
The AirTAC SAIJ32X280-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the end position during commissioning. With a nominal 280 mm stroke and a 75 mm adjustment range, it provides a usable travel window of 205 to 280 mm without requiring external stops. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position sensing.
Operating at 0.15 to 1.0 MPa, this 32 mm bore generates 402 N of push force and 345 N of pull force at 0.5 MPa. It features a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threads. The integrated variable air cushions at both ends decelerate the piston, but the rear adjuster acts strictly as a travel stop, not a lock, meaning the load is not held without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-75 |
|---|---|
| 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 SAIJ32BX280-75
| 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 SAIJ32BX280-75 Is Used
Machine Changeover
Dial in the 205-280 mm travel window during product size transitions without swapping the physical cylinder or adding external mechanical stops.
End-Position Tuning
Use the rear adjuster to fine-tune the exact retract position during commissioning, compensating for mechanical tolerance stack-ups.
Variable Diverter Stroke
Adjust the retract distance on the fly to handle varying package sizes moving along a conveyor line.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-75 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when an application requires exact end-position tuning or frequent product changeovers, replacing the need to swap out a fixed-stroke SAI cylinder. If the 402 N push force at 0.5 MPa is insufficient, stepping up to the 40 mm bore yields 628 N. Because the 280 mm stroke is relatively long for a 12 mm rod, an external guide is recommended to prevent excessive side loading. For applications requiring true load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the adjuster. This configuration uses PT ports and omits the FB, CA, CB, and CR mounts found on some ISO 15552 cylinders, supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
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 SAIJ32BX280-75 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It operates at speeds between 30 and 800 mm/s, powered through its PT threaded G1/8 port.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 280 mm down to as little as 205 mm. It sets the end position but does not lock or hold the load without live air pressure.
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