Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S
The AirTAC SAIJ32X250-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 250 mm nominal stroke that can be fine-tuned down by up to 20 mm, creating a precise 230-250 mm usable travel window for commissioning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. You can mount CMSE reed or DMSE electronic switches directly into the sensor grooves on both sides of the extruded aluminum barrel. The PT G1/8 port and integrated adjustable air cushions at both ends ensure reliable deceleration across its 30-800 mm/s speed range.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIJ32BX250-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SAIJ32BX250-20S Is Used
Changeover Dial-In
Quickly adjust the 230-250 mm travel endpoint during product size changeovers on a packaging line without replacing the cylinder.
End-Stop Calibration
Fine-tune the final retraction position during machine commissioning to avoid mechanical interference and achieve exact placement.
Corrosive Positioning
Leverage the SUS304 stainless steel rod for light-force pushing and pulling tasks in environments requiring high corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20S the Right Cylinder?
Select this 32 mm bore when an application requires exact end-position tuning without swapping hardware; stepping up to a 40 mm bore raises push force to 628 N at 0.5 MPa. Choose the SAIJ adjustable format over a fixed SAI cylinder when you need a variable end-stop to dial in a specific 230-250 mm retraction point during machine setup. Because the stroke is 250 mm, ensure external guidance is used to prevent excessive side-loading on the 12 mm rod.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 32 mm bore, 250 mm stroke, 20 mm adjustment, PT G1/8 port, and -S magnet. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32BX250-20S FAQ
At a 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. The maximum thrust is 82 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the 250 mm nominal stroke by up to 20 mm, providing a usable travel window of 230 to 250 mm. It acts as a mechanical stop and does not lock the load without continuous air pressure.
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