Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-50 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 SAIJ32BX270-50
The AirTAC SAIJ32X270-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the nominal 270 mm travel back by up to 50 mm. This creates a precise 220-270 mm usable window, enabling exact end-position tuning at commissioning without swapping out the unit or adding external stops. Built with a SUS304 stainless steel rod, it provides excellent corrosion resistance for demanding environments.
Delivering 402 N of push force and 345 N of pull force at 0.5 MPa, this 32 mm bore cylinder integrates PT tapered port threading and variable air cushions at both ends. The extruded aluminum barrel includes dual sensor grooves for mounting CMSE reed or DMSE solid-state switches, though this specific SKU is configured without a magnet. Its robust M10x1.25 rod thread handles standard loads, but the 270 mm stroke warrants an external guide to prevent excessive side-loading on the piston rod.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-50 |
|---|---|
| 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 SAIJ32BX270-50
| 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 SAIJ32BX270-50 Is Used
End-Stop Calibration
Dial in the exact 220-270 mm travel window during machine commissioning to perfect positioning without physically swapping the cylinder.
Product Changeover
Quickly adapt the stroke length on a packaging line for different carton sizes by adjusting the rear stopper screw up to 50 mm.
Assembly Positioning
Fine-tune the extension end-point for delicate pressing or seating tasks where a fixed 270 mm stroke would apply excessive force.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-50 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires frequent product changeovers or exact end-stop calibration without mechanical rework. If your application requires higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa, but retains the same 30-800 mm/s speed range. Conversely, larger bores like the 63 mm offer 1559 N but require more space.
This SAIJ32X270-50 is dimensionally interchangeable with ISO 15552 cylinders. To match this configuration for an ISO replacement, specify a 32 mm bore, 270 mm stroke, 50 mm adjustment range, PT port thread, SUS304 (B) rod material, and no magnet. Remember that the rear adjuster functions only as a travel stop; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32BX270-50 FAQ
At a 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that can shorten the 270 mm nominal stroke by up to 50 mm, providing an effective travel window of 220-270 mm. It only sets the end position and does not lock the load without live air pressure.
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