Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-20S 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 SAIJ32AX325-20S
The AirTAC SAIJ32X325-20-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 325mm nominal stroke that can be fine-tuned down by 20mm, providing a usable travel window of 305-325mm. This built-in adjustability allows operators to dial in exact end positions during commissioning without adding external stops.
This specific configuration includes an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides, and the PT tapered port threads match the standard G1/8 fitting size for this 32mm bore.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-20S |
|---|---|
| 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 SAIJ32AX325-20S
| 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 SAIJ32AX325-20S Is Used
Product Changeover
Quickly adjust the retract end-position by up to 20mm when switching between product sizes on a packaging line, avoiding the need to physically swap cylinders.
Commissioning Calibration
Fine-tune the 325mm stroke during initial machine setup to achieve exact sensor triggering and mechanical alignment without adding external stopper blocks.
Light-Load Positioning
Utilize the 402N push force to move light actuators or diverters on a conveyor, relying on the built-in magnet for precise DMSE electronic sensor feedback.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-20S the Right Cylinder?
Choose this 32mm bore when an application requires precise positioning of lighter loads up to 402N at 0.5 MPa. If your setup demands greater thrust, stepping up to the 40mm bore yields 628N of push force. The adjustable-stroke design is favored over a fixed SAI cylinder when you need variable end-stops for product changeovers or fine-tuning at machine setup. Because the 325mm stroke is relatively long for a 32mm rod, an external guide should be used to prevent excessive side-loading and premature seal wear.
To match this ISO 15552 dimensionally interchangeable cylinder, specify a 32mm bore, 325mm stroke, 20mm adjustment range, PT port threads, and the -S magnet option. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for pneumatic locking without pressure, consider the SAIL or BSAI series. Mounting options are limited to 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 SAIJ32AX325-20S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 20mm. This creates a usable travel window of 305-325mm, letting you set the exact retract end-position at commissioning without changing the cylinder.
At a standard operating pressure of 0.5 MPa, the SAIJ32X325-20-S provides 402N of push force and 345N of pull force. It can reach a maximum push force of 724N at 0.9 MPa.
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