Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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
- Stroke550 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S
The AirTAC SAIJ32X550-100-S 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 100 mm, creating a highly versatile 450-550 mm usable window. Delivering 402 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors.
Because this 32 mm bore cylinder uses an extruded aluminum barrel rather than a tie-rod design, it provides standard sensor grooves on both sides. The rear adjuster functions strictly as a travel stop to dial in the end position during commissioning without adding external stops; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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 SAIJ32BX550-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×550 | 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 SAIJ32BX550-100S Is Used
Product Changeovers
Dial in the 450-550 mm travel window during line changeovers to accommodate different product lengths without physically swapping the cylinder.
End-Stop Calibration
Fine-tune the exact retract position at commissioning using the rear adjuster, eliminating the need to machine custom external spacers.
Variable Diverter Stops
Adjust the stroke on the fly for diverting different package sizes on a conveyor line, ensuring precise physical contact without reprogramming.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX550-100S the Right Cylinder?
Choose this adjustable model over a fixed SAI when your machine setup requires variable end-stops or product changeovers, allowing you to fine-tune the 550 mm stroke on the fly. If your application requires more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you need less force, the 32 mm bore is the smallest standard ISO 15552 option available.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 550 mm stroke, 100 mm adjustment range, PT tapered port thread, and the -S magnet requirement. Because the stroke is 550 mm, the 12 mm rod is highly susceptible to side-loading; always use an external guide to prevent binding and premature seal wear. For load-holding without live pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is only a stop.
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 SAIJ32BX550-100S FAQ
At 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 mechanical stop that lets you shorten the 550 mm nominal stroke by up to 100 mm, providing a usable travel window of 450-550 mm. It functions as a travel stop, not a lock, and cannot hold the load without continuous air pressure.
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