Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100
The AirTAC SAIJ32X155-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 155 mm stroke that can be dialed back by up to 100 mm, yielding a highly flexible 55-155 mm usable travel window for precise end-position tuning. In the 32 mm bore class, it delivers 563 N of push force at 0.7 MPa, making it well-suited for lighter-duty positioning tasks.
This variant is equipped with a SUS304 stainless steel rod (material code B) for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, meaning external position sensing via CMSE or DMSE switches is not supported without modification. The rear adjuster acts strictly as a travel stop to decelerate the piston, not as a locking device to hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 155 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 SAIJ32BX155-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×155 | 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 SAIJ32BX155-100 Is Used
Changeover Optimization
Dial in the exact end-stop from 55 to 155 mm during machine setup, allowing rapid product size changes without physically replacing the actuator.
Precision End-Positioning
Fine-tune the retract stroke within the 55-155 mm window at commissioning to achieve exact material placement without adding external mechanical stops.
Light-Duty Actuation
Leverage the 32 mm bore's 563 N push force at 0.7 MPa for compact assembly lines where the SUS304 rod provides necessary wash-down corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX155-100 the Right Cylinder?
Choose this 32 mm bore cylinder when you need 402 N push force at 0.5 MPa and a highly variable end-stop, avoiding the need to swap physical cylinders during product changeovers. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. Conversely, if you only need a fixed 155 mm stroke without the adjustment mechanism, a standard SAI cylinder is a simpler choice.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 155 mm stroke, PT tapered port threads, and the specific 100 mm adjustment range. Note that SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is under 300 mm, side-load stress on the 12 mm rod is minimal, though external guides are still recommended for heavy lateral loads. For applications requiring true load-holding without continuous air pressure, consider 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 SAIJ32BX155-100 FAQ
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 55 to 155 mm, enabling fine-tuning of the end position at commissioning without swapping the cylinder.
At 0.5 MPa, the SAIJ32X155-100 provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N, with a maximum rated push force of 724 N at 0.9 MPa.
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