Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-50S 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 SAIJ32BX325-50S
The AirTAC SAIJ32X325-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 325 mm stroke that can be fine-tuned backward by up to 50 mm, creating a usable travel window of 275-325 mm. This allows you to dial in the exact retract position at commissioning without adding external stops. The bore delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it suitable for lighter-duty manipulation tasks.
This variant includes a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides, and because this is an -S model, it includes a magnet for use with AirTAC CMSE reed switches or DMSE solid-state electronic sensors. The standard speed range is 30-800 mm/s, and the integrated air cushions at both ends handle end-of-travel deceleration.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-50S |
|---|---|
| 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 SAIJ32BX325-50S
| 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 SAIJ32BX325-50S Is Used
Changeover Stops
Dial in the retract end-position by up to 50 mm during product size changeovers on a packaging line, avoiding the need to physically swap out the cylinder.
Light Assembly Push
Utilizes the 402 N push force at 0.5 MPa to seat small components accurately, with the 275-325 mm window allowing exact alignment to varying fixture heights.
Sensor-Ready Positioning
Leverages the integrated magnet with DMSE solid-state sensors to confirm end-of-stroke travel, while the SUS304 rod withstands mildly corrosive environments.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-50S the Right Cylinder?
Choose this 32 mm bore when your application requires precise positioning of lighter loads, stepping up from a 20 mm bore if you need more than roughly 150 N of force, or stepping down from a 40 mm bore (which provides 628 N push at 0.5 MPa) to save space. The adjustable stroke is ideal for machine setups that require variable end-stops during product changeover. When matching an ISO 15552 replacement, verify the 325 mm stroke, 50 mm adjuster, PT G1/8 port, and the -S magnet requirement.
Because the 325 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread provide a robust interface, but an external guide is still recommended to prevent excessive side-loading on the unsupported rod. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither will hold the load without live air pressure. For true load-holding without continuous air, consider the SAIL or BSAI series. The available SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ32BX325-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder generates 402 N of push force and 345 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjuster screw allows you to shorten the effective stroke from the 325 mm nominal length by up to 50 mm, providing a usable travel window of 275-325 mm. It acts as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
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