Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S
The AirTAC SAIJ32X290-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 290mm nominal stroke that can be fine-tuned down by up to 50mm, creating a usable travel window of 240-290mm. This built-in adjustability allows operators to dial in exact end positions during commissioning without adding external stops.
This SKU includes a magnet for CMSE reed and DMSE electronic sensors, which seat neatly into the sensor grooves on both sides of the extruded aluminum barrel. The piston rod is crafted from SUS420J2 stainless steel (A), and the PT tapered port threads match the standard G1/8 fitting size for this 32mm bore.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 290 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 SAIJ32AX290-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×290 | 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 SAIJ32AX290-50S Is Used
Product Changeovers
Dial in the 240-290mm travel window on the fly to accommodate different package lengths on a packaging line without swapping hardware.
Machine Setup
Fine-tune the retract end-position during commissioning to achieve precise alignment, using the rear stopper instead of external shims.
Variable End Stops
Adjust the stroke dynamically for sorting diverters that need to adapt to varying product sizes on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-50S the Right Cylinder?
Choose this 32mm bore when an application requires precise variable end-stops and moderate force; if you need more power, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring frequent product-size changeovers, whereas a fixed SAI cylinder suits dedicated single-part lines. Because this model has a 290mm stroke, ensure an external guide supports the load to prevent excessive side-loading on the rod.
For an exact ISO 15552 replacement, match the 32mm bore, 290mm stroke, 50mm adjustment code, PT port thread, and -S magnet. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for positive load-holding, consider an external rod lock or the SAIL/BSAI series. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, 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 SAIJ32AX290-50S FAQ
At 0.5 MPa it provides 402N of push force and 345N of pull force. If operated at 0.7 MPa, the push force increases to 563N.
The rear adjuster screw lets you trim the effective stroke back by up to 50mm from the 290mm nominal length, providing a usable travel window of 240-290mm. It functions as a hard stop for end-position tuning, not a load-holding lock.
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