Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20 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 SAIJ32BX250-20
The AirTAC SAIJ32X250-20 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 250 mm stroke that can be fine-tuned down by up to 20 mm, creating a precise 230-250 mm usable travel window for exact end-position tuning. Delivering 402 N of push force at 0.5 MPa, it fits compact automation setups perfectly.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads with a G1/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to drop in CMSE reed or DMSE electronic sensors later if positioning feedback becomes necessary.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20 |
|---|---|
| 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 SAIJ32BX250-20
| 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 SAIJ32BX250-20 Is Used
End-Position Tuning
Dial in the exact 230-250 mm retract distance during machine commissioning without swapping cylinders or adding bulky external stopper blocks.
Product Changeover
Quickly adjust the stroke end by up to 20 mm to accommodate slight variations in incoming product sizes on a packaging line.
Corrosive Assembly
Leverage the SUS304 stainless steel rod for light-duty pushing tasks in environments where standard carbon steel rods would risk degradation.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-20 the Right Cylinder?
Choose this 32 mm bore when an application demands 402 N of push force at 0.5 MPa but requires flexibility at commissioning; if you need greater thrust, stepping up to the 40 mm bore yields 628 N. The rear adjusting screw acts purely as a mechanical stop to trim the retract position and is not a locking device, so it cannot hold a load without live air pressure. For fail-safe load holding, consider an external pilot-operated check valve or the SAIL series.
Because the 250 mm stroke is moderately long, ensure external guide rails support the load to prevent excessive side-loading on the SUS304 rod. To match this exact ISO 15552 replacement, verify the 250 mm stroke, 20 mm adjustment range, PT G1/8 port, and your preferred mounting style from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 kits.
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 SAIJ32BX250-20 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 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster screw lets you shorten the effective stroke from its 250 mm nominal length, providing a usable travel window of 230 to 250 mm. This stopper only sets the end position and does not lock the load without air pressure.
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