Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S
The AirTAC SAIJ32X225-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 205-225 mm usable travel window, allowing you to dial back the 225 mm nominal stroke by up to 20 mm during commissioning. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This unit features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for use with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the standard PT tapered port is G1/8. The rear adjuster acts purely as a mechanical stop to set the end position; it does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 225 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 SAIJ32BX225-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×225 | 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 SAIJ32BX225-20S Is Used
Machine Changeover
Dial in the 205-225 mm travel window during product size transitions to perfectly position stops without replacing the cylinder.
Sensor Calibration
Use the integrated magnet with DMSE electronic sensors to confirm exact retraction distances on automated test fixtures.
End-Stop Tuning
Fine-tune the final retract position on small clamping jigs where a fixed 225 mm stroke would overrun the target.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-20S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when an application requires exact end-position tuning without adding external stops or swapping components. If your process needs greater thrust, stepping up to the 50 mm bore yields 982 N of push force at 0.5 MPa. Conversely, lighter duties can drop to a 25 mm bore.
The SAIJ series is selected over a fixed-stroke SAI cylinder when machine setups involve frequent product changeovers or variable end stops. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. Because the 225 mm stroke is relatively long for a 32 mm rod, an external guide is recommended to prevent excessive side-loading. For load-holding without live air, consider the SAIL or BSAI series, as the SAIJ adjuster is not a brake.
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 SAIJ32BX225-20S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 225 mm nominal stroke by up to 20 mm, creating a 205-225 mm usable travel window. This allows precise end-position tuning at commissioning without external stops.
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