Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S
The AirTAC SAIJ32X275-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a 0.7 MPa push force of 563 N and features a 275 mm nominal stroke that can be fine-tuned down by up to 50 mm, yielding a usable travel window of 225-275 mm. This built-in adjustability allows precise end-position tuning during commissioning without swapping out the cylinder.
This specific SKU is configured with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides, and fluid control is managed via a PT tapered G1/8 port.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAIJ32AX275-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SAIJ32AX275-50S Is Used
Machine Changeover
Dial in the 225-275 mm travel window during product size changes without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke at commissioning to achieve exact positioning, compensating for mechanical tolerances in the fixture.
Variable End Stops
Sort or push items on a line where the required extension distance occasionally shifts by up to 50 mm between runs.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-50S the Right Cylinder?
Choose this 32 mm bore when an application requires approximately 563 N of push force at 0.7 MPa with variable end-stop positioning. If your setup demands less force, stepping down is not an option in this size range, but stepping up to a 40 mm bore provides 879 N at 0.7 MPa. The adjustable stroke is ideal for product changeovers on a line, whereas a fixed SAI cylinder is better for rigid, unchanging endpoints. For exact ISO 15552 replacement matching, verify the 275 mm stroke, 50 mm adjustment, PT port, and mounting style. Because the stroke is 275 mm, ensure external guides are used to prevent excessive side-loading on the 12 mm rod.
The rear adjuster acts strictly as a travel stop and works alongside the standard air cushion to decelerate the load. It does not hold the load without live air pressure; for true load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ32AX275-50S FAQ
The rear adjusting screw allows you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 225 to 275 mm, letting you set the exact retract end-position without changing the cylinder.
At a 0.7 MPa operating pressure, the push force is 563 N and the pull force is 345 N. At the maximum 1.0 MPa pressure, it achieves a push force of 802 N.
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