Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-40S 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 SAIJ32AX275-40S
The AirTAC SAIJ32X275-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel end-point without swapping out the unit. By utilizing the 40 mm adjustment mechanism, this model provides a usable travel window of 235-275 mm, making it highly effective for dialing in exact end positions during machine commissioning. It delivers a push force of 402 N at 0.5 MPa, serving as a reliable actuator for lighter-duty operations.
Built with a SUS420J2 stainless steel rod (code A) and equipped with a magnet for position sensing, this cylinder integrates seamlessly with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting. It features PT tapered port threads (G1/8) and relies on a 12 mm carbon steel piston rod, which handles standard loads well, though long unsupported strokes still require external guiding.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-40S |
|---|---|
| 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 SAIJ32AX275-40S
| 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 SAIJ32AX275-40S Is Used
Machine Commissioning
Dial in the exact 235-275 mm end position during setup without replacing the cylinder or adding external mechanical stops.
Product Changeover
Quickly adapt the stroke window on packaging lines when handling slightly different carton sizes or product lengths.
Light Assembly
Provides a consistent 402 N push force at 0.5 MPa for precise pressing, clamping, or positioning tasks.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-40S the Right Cylinder?
Choose this 32 mm bore when your application requires precise positioning rather than heavy thrust; stepping up to a 40 mm bore increases the 0.5 MPa push force to 628 N for heavier payloads. The adjustable stroke is ideal for product changeovers or variable end-stops, eliminating the need to bolt on external stops. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). To replace an ISO 15552 unit, match the 32 mm bore, 275 mm stroke, 40 mm adjustment, PT port, and -S magnet configuration.
Because the nominal stroke is 275 mm, you should ensure adequate external guiding to prevent excessive side-load wear on the rod. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ does not hold loads without live air pressure. For true load-holding without continuous air, consider the SAIL or BSAI series.
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 SAIJ32AX275-40S FAQ
At an operating pressure of 0.5 MPa, this 32 mm bore cylinder generates a push force of 402 N and a pull force of 345 N. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to shorten the nominal 275 mm stroke by up to 40 mm. This creates a usable travel window of 235-275 mm, letting you fine-tune the retract end-position at commissioning. The adjuster acts only as a stop and does not lock the load without live air.
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