Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20S 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 SAIJ32BX275-20S
The AirTAC SAIJ32X275-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 12mm carbon steel core, though this specific SKU utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance. The integrated magnet (-S) supports position sensing.
With a 20mm adjustment range, this model provides a usable travel window of 255 to 275mm, allowing precise end-position tuning during commissioning. It features PT tapered port threads (G1/8) and operates at speeds between 30 and 800mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20S |
|---|---|
| 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 SAIJ32BX275-20S
| 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 SAIJ32BX275-20S Is Used
Machine Changeover
Dial in the 255-275mm travel window during product size transitions without replacing the cylinder or adding external stops.
End-Position Tuning
Fine-tune the retract end-stop during commissioning to absorb mechanical tolerance and achieve precise 32mm bore positioning.
Corrosive Setup
Leverage the SUS304 stainless steel rod option in light manufacturing environments where moisture or contamination is a concern.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20S the Right Cylinder?
Choose this 32mm bore when your application requires 402N of push thrust at 0.5 MPa (or 563N at 0.7 MPa). If your process demands less force, stepping down is not an option in this family, but if you need significantly more power, the 40mm bore offers 628N at 0.5 MPa. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops for product changeovers without physically swapping components.
This cylinder utilizes the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the stroke is 275mm, an external guide is recommended to prevent side-load damage to the rod. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. The -S magnet pairs precisely with AirTAC CMSE reed and DMSE electronic solid-state sensors.
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 SAIJ32BX275-20S FAQ
The nominal stroke is 275mm, and the -20 adjustment code allows you to shorten the effective stroke by up to 20mm. This creates an adjustable travel window of 255 to 275mm using the rear stopper screw.
At 0.5 MPa operating pressure, the 32mm bore provides 402N of push thrust and 345N of pull thrust. At 0.7 MPa, the push force increases to 563N.
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