Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50
The AirTAC SAIJ32X270-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 50 mm. This creates a highly versatile 220-270 mm usable stroke window, letting you dial in exact end positions at commissioning without swapping out the barrel or adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a SUS420J2 stainless steel rod for improved corrosion resistance.
Equipped with a PT tapered port thread and a 12 mm rod, this unit is built for standard pneumatic setups. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE solid-state sensors. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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 SAIJ32AX270-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×270 | 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 SAIJ32AX270-50 Is Used
Machine Changeover
Quickly adapt the end-stop from 220 to 270 mm during product size transitions on a packaging line without disassembling the pneumatic setup.
End-Position Tuning
Fine-tune the retract stroke during initial commissioning to perfectly align a pick-and-place mechanism without machining external spacers.
Variable Assembly Stops
Adjust the mechanical stop on the fly to accommodate different part heights in a multi-product assembly cell.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-50 the Right Cylinder?
Choose this 32 mm bore when your application requires around 402 N of thrust at 0.5 MPa and significant on-the-fly stroke variability. If your setup needs less fine-tuning, a standard fixed-stroke SAI cylinder might suffice, but the SAIJ series shines during machine changeovers where the 50 mm adjustment window prevents the need for custom shims. To match this ISO 15552 interchangeable cylinder for replacement, verify the 270 mm stroke, 50 mm adjuster, PT G1/8 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and standard rod without a magnet.
Because the 270 mm stroke is relatively long for a 32 mm bore, ensure your setup includes an external guide to prevent excessive side-loading on the piston rod. If you need true load-holding without continuous air pressure, this cylinder will not suffice; instead, look at the SAIL or BSAI series with integrated locking mechanisms.
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 SAIJ32AX270-50 FAQ
At a 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 270 mm stroke by up to 50 mm, giving an effective travel window of 220 to 270 mm. This mechanical stop only sets the end position and does not lock the load without live air.
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