Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40
The AirTAC SAIJ32X325-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the retract end position. It provides a usable travel window of 285 to 325 mm, giving you 40 mm of flexibility to dial in the exact stop without adding external hard stops. In its standard bore configuration, it delivers 402 N of push force at 0.5 MPa and accepts a PT tapered port.
This model features a SUS304 stainless steel rod for superior corrosion resistance and uses an extruded aluminum barrel with sensor grooves on both sides. Operating at speeds of 30-800 mm/s, it relies on variable air cushions at both ends to decelerate the load. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 325 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 SAIJ32BX325-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 SAIJ32BX325-40 Is Used
Machine Changeover
Quickly adjust the 285-325 mm travel window to accommodate new product lengths on a packaging line without swapping the cylinder.
End-Stop Calibration
Fine-tune the retract position during commissioning to achieve exact placement, using the 40 mm adjustment screw instead of external shims.
Variable Diverter Stroke
Set precise sorting positions on a conveyor by trimming the stroke back up to 40 mm to handle different package sizes on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40 the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning during commissioning or product changeovers, stepping up from a smaller unit if you need its 402 N push force at 0.5 MPa. Because the stroke is 325 mm, the 12 mm rod should be adequately supported by an external guide to prevent excessive side-loading and premature seal wear. The adjustable rear stopper allows you to shorten the effective stroke on the fly, a major advantage over a fixed-stroke SAI cylinder.
For a true ISO 15552 replacement match, confirm the 32 mm bore, 325 mm stroke, 40 mm adjustment range, PT port thread, and your required mounting style. This SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, but omits FB, CA, CB, and CR. Note that a plain SAIJ does not hold position without live air; for load-holding, consider an external rod lock or the SAIL lock variant.
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 SAIJ32BX325-40 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 pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 325 mm stroke by up to 40 mm, providing an effective travel range of 285 to 325 mm. It sets the end position but does not lock the load without continuous air pressure.
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