Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-40S 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 SAIJ32AX325-40S
The AirTAC SAIJ32X325-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the travel by up to 40 mm. This creates a usable stroke window of 285 to 325 mm, letting you fine-tune the retract end position at commissioning without adding external stops or swapping the cylinder. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod and includes a magnet for position sensing.
Because the 325 mm stroke is relatively long for the 32 mm bore, the 12 mm rod and M10x1.25 thread should be paired with an external guide to manage side loads. The rear adjuster acts purely as a travel stop to set the end position, not a lock, so the cylinder cannot hold a load without live air pressure. For load-holding without pressure, consider an external rod lock or the SAIL series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-40S |
|---|---|
| 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 SAIJ32AX325-40S
| 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 SAIJ32AX325-40S Is Used
Machine Changeover
Quickly reconfigure the retract end-stop for different product sizes on a packaging line without replacing the cylinder.
Commissioning Fine-Tune
Dial in the exact 285-325 mm travel distance during initial setup to perfect the seating position of a delicate component.
Variable End Stops
Use the 40 mm adjustment window to accommodate multiple material thicknesses in a clamping or pressing fixture.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-40S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your machine setup requires variable end stops or frequent product-size changeovers, stepping up from a smaller frame or down from a 40 mm bore (which provides 628 N push force at 0.5 MPa). The adjustable travel is perfect for dialing in exact positioning without replacing hardware.
To match this ISO 15552 replacement exactly, specify the 32 mm bore, 325 mm nominal stroke, 40 mm adjustment range, PT tapered port threads, and the -S magnet option for CMSE reed or DMSE electronic sensors. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on other profile cylinders.
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 SAIJ32AX325-40S FAQ
At an operating pressure of 0.5 MPa, this 32 mm bore double-acting cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum of 82 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the 325 mm nominal stroke by up to 40 mm, creating a usable travel window of 285 to 325 mm. This stopper sets the end position but does not lock or hold the load without live air pressure.
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