Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S
The AirTAC SAIJ32X90-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 90 mm nominal stroke to a 40 mm minimum. This creates a highly versatile 40-90 mm usable window, letting you dial in the exact end position during commissioning without swapping out the unit. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance, includes a PT tapered port thread, and comes with a magnet for position sensing. You can pair the internal magnet with AirTAC CMSE reed or DMSE electronic solid-state switches mounted into the dual-side sensor grooves on the extruded aluminum barrel.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAIJ32BX90-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SAIJ32BX90-50S Is Used
Machine Changeover
Dial the rear stopper back by up to 50 mm to instantly accommodate a new shorter product length on a packaging line without changing the cylinder.
End-Position Tuning
Fine-tune the retract stroke during commissioning to achieve exact 40-90 mm travel limits, ensuring precise mechanical alignment without external shims.
Light-Duty Testing
Leverage the 402 N push force and SUS304 stainless rod for variable-stroke actuation in benchtop testing rigs or washdown-adjacent environments.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX90-50S the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N push force at 0.5 MPa (or 563 N at 0.7 MPa) and on-the-fly end-position tuning. If your setup demands higher thrust, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. The 50 mm adjustment range is ideal for machines handling multiple product sizes, acting as a variable end-stop. Remember that the rear adjuster functions purely as a mechanical stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
As a dimensionally interchangeable ISO 15552 cylinder, this model accepts PT port threads and the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 90 mm stroke is under 300 mm, side-load stress is minimal, though you should still ensure axial load alignment to maximize seal life.
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 SAIJ32BX90-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If you increase the supply to 0.7 MPa, the push force rises to 563 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 90 mm nominal stroke by up to 50 mm, creating a usable travel window of 40-90 mm. It requires live air to move and does not lock or hold the load in place.
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