Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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
- Stroke550 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30
The AirTAC SAIJ32X550-30 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, allowing you to dial back the nominal 550 mm travel by up to 30 mm. This creates a 520-550 mm usable window, letting you fine-tune the retract end position at commissioning without adding external stops. In the compact 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
Built with a SUS304 stainless steel rod and PT tapered ports, this variant resists corrosion while providing a tight, reliable pneumatic seal. The extruded aluminum barrel features sensor grooves on both sides for direct mounting of position switches. Because the 550 mm stroke is long relative to the 12 mm rod diameter, an external guide is strongly recommended to prevent excessive side-load wear on the rod seals.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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 SAIJ32BX550-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×550 | 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 SAIJ32BX550-30 Is Used
Product Size Changeovers
Quickly adjust the retract stop by up to 30 mm to accommodate varying package lengths on a packaging line without changing out the entire actuator.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial commissioning to achieve perfect alignment, compensating for mechanical tolerances in the fixture.
Variable End Stops
Dial in the exact 520 to 550 mm travel distance required for delicate positioning tasks, using the rear adjuster rather than external hard stops.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-30 the Right Cylinder?
Choose this 32 mm bore when your application requires moderate force (402 N push at 0.5 MPa) and a long, variable travel distance. If your setup needs more thrust, stepping up to the 40 mm bore yields 628 N of push force at the same pressure, but increases the footprint. The adjustable rear stopper is perfect for product changeovers on a line, letting operators shift the end position by up to 30 mm without physically swapping the cylinder.
When replacing an ISO 15552 unit, match the 32 mm bore, 550 mm stroke, PT port thread, and the rear adjuster requirement. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles. Because this is a 550 mm stroke, ensure your mounting arrangement supports the load to avoid rod deflection. The rear screw acts only as a travel stop and does not hold the load without live air; for true fail-safe load holding, consider the SAIL or BSAI series instead.
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 SAIJ32BX550-30 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the nominal 550 mm, providing a usable travel window of 520 to 550 mm. The adjuster acts as a mechanical stop at the retract end and does not lock the load without continuous air pressure.
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