Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20 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 SAIJ32BX325-20
The AirTAC SAIJ32X325-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 305 to 325 mm window. It delivers 402N of push force and 345N of pull force at 0.5 MPa, making it suited for lighter-duty positioning tasks. The barrel is extruded aluminum with sensor grooves on both sides, and this specific configuration uses a SUS304 stainless steel rod for enhanced corrosion resistance.
The integrated rear stopper screw lets you dial in the exact end position during commissioning without adding external stops. Because this 32 mm bore cylinder uses a 12 mm rod and M10x1.25 thread, it handles moderate side loads, but at 325 mm of travel, an external guide is recommended to prevent rod binding. The adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20 |
|---|---|
| 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 SAIJ32BX325-20
| 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 SAIJ32BX325-20 Is Used
Machine Changeover
Quickly adjust the end-stop by up to 20 mm during product size transitions without swapping out the entire actuator.
Variable End Stops
Fine-tune the retract position on a packaging line to accommodate different carton sizes within the 305-325 mm travel window.
Commissioning Calibration
Dial in the exact retract stroke during initial machine setup to align tooling without machining custom spacers.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-20 the Right Cylinder?
Choose this SAIJ32X325-20 when you need precise end-position tuning on a longer-stroke, lighter-force actuator. If your application requires greater thrust, stepping up to the 40 mm bore provides 528N of pull force at 0.5 MPa. Unlike a fixed-stroke SAI cylinder, this model's 20 mm adjustment range is ideal for machine setups that undergo frequent product-size changeovers. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a locking mechanism.
This configuration features PT tapered port threads and no magnet. It is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Given the 325 mm stroke, ensure your mounting arrangement includes an external guide to support the load and mitigate side-load stress on the rod.
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 SAIJ32BX325-20 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402N of push force and 345N of pull force. It can deliver up to 724N of push force at 0.9 MPa.
A rear stopper screw lets you mechanically shorten the nominal 325 mm stroke by up to 20 mm, providing a usable travel window of 305 to 325 mm. The screw sets the end position but does not lock the load without live air pressure.
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