Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-75 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 SAIJ32BX325-75
The AirTAC SAIJ32X325-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This creates a highly versatile 250-325 mm usable stroke window, letting you dial in the exact end position during commissioning without swapping out the cylinder. It delivers 402 N of push force at 0.5 MPa, making it well-suited for lighter-duty positioning tasks.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible CMSE or DMSE switch mounting. Remember that the rear adjuster functions strictly as a travel stop to set deceleration, not as a locking device, so it will not hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-75 |
|---|---|
| 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 SAIJ32BX325-75
| 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 SAIJ32BX325-75 Is Used
Product Changeovers
Quickly adapt the cylinder's effective stroke from 325 mm down to 250 mm on packaging lines when switching to different package lengths.
Machine Setup
Fine-tune the retract end-position during initial commissioning to achieve exact alignment without machining custom spacer blocks.
Variable End Stops
Provide an adjustable physical stop for lightweight conveyor sorting arms that need to accommodate varying product profiles.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-75 the Right Cylinder?
Choose this 32 mm bore when you need precise positioning in a compact footprint but want the flexibility to shorten the stroke on the fly. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The 75 mm adjustment range here is perfect for machines handling frequent product size changeovers, giving you a variable end-stop without the need for external physical stops.
Because the 325 mm stroke is relatively long for a 32 mm bore, an external guide is recommended to prevent excessive side-loading on the rod. When replacing an ISO 15552 cylinder, match the 325 mm nominal stroke, the 75 mm adjustment requirement, PT port threads, and the SUS304 rod material. This model lacks a magnet, so position sensing is not possible without adding an external switch track. For any load-holding requirements without live air, look to the SAIL or BSAI series instead.
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 SAIJ32BX325-75 FAQ
At a 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 acts as a stopper that can shorten the nominal 325 mm stroke by up to 75 mm, giving you a usable travel window of 250 to 325 mm. It sets the end position but does not lock the load without continuous air pressure.
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