Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 25mm 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
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20
The AirTAC SAIJ32X25-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 5 to 25 mm, allowing you to dial back the 25 mm nominal stroke by up to 20 mm. In the 32 mm bore class, it delivers 402 N of push force at 0.5 MPa and 563 N at 0.7 MPa.
This unit features a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The rear stopper mechanism acts solely as a travel end-point tuner, not a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAIJ32BX25-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 SAIJ32BX25-20 Is Used
Machine Changeover
Dial in the 5 to 25 mm travel window during product size changes to set new end-stops without physically swapping cylinders.
Commissioning Tuning
Fine-tune the exact retract position during machine setup to absorb mechanical tolerances without adding external stopper blocks.
Light Assembly End-Stop
Use the 402 N force at 0.5 MPa for light-duty positioning tasks where exact end-of-stroke placement is critical.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX25-20 the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need precise end-position tuning at commissioning without swapping out physical components. If your application requires less force, stepping down is not an option in this series, but stepping up to a 40 mm bore yields 628 N at 0.5 MPa. For load-holding without live air pressure, this standard adjuster will not suffice; consider an SAIL or BSAI series cylinder instead.
To match this ISO 15552 cylinder as a replacement, specify a 32 mm bore, 25 mm stroke, 20 mm adjustment range, PT port thread, and standard mounting. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles.
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 SAIJ32BX25-20 FAQ
At 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw lets you shorten the 25 mm nominal stroke by up to 20 mm, creating a 5 to 25 mm usable travel window. The adjuster acts as a mechanical stop and does not hold the load without live air.
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