Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-40S 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 SAIJ32AX290-40S
The AirTAC SAIJ32X290-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 290 mm stroke and a 40 mm adjustment range, it provides a usable travel window of 250 to 290 mm. This allows you to dial in the exact retract end-position at commissioning without swapping hardware. The 32 mm bore generates 402 N of push force at 0.5 MPa and 563 N at 0.7 MPa.
This SKU includes a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and features a magnet for position sensing. It integrates seamlessly with AirTAC CMSE reed and DMSE solid-state sensors via the dual-side barrel grooves. The PT tapered ports are G1/8, and the standard variable air cushions at both ends handle end-of-stroke deceleration. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-40S |
|---|---|
| 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 SAIJ32AX290-40S
| 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 SAIJ32AX290-40S Is Used
Machine Setup & Changeover
Fine-tune the retract distance by up to 40 mm during product size transitions without replacing the cylinder or adding mechanical stops.
Variable End-Stop Positioning
Dial in a precise 250 to 290 mm travel window for light-duty assembly tasks requiring exact endpoint control.
Light-Load Diverting
Adjust the retract stroke on the fly to accommodate varying package sizes on a conveyor line using the 402 N push force.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX290-40S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when an application requires precise end-position tuning during machine setup or product changeover, avoiding the need to bolt on external stops or buy a fixed-stroke SAI cylinder. If your process requires slightly more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. To replace this cylinder, match the 32 mm bore, 290 mm nominal stroke, 40 mm adjuster, PT G1/8 port, and the -S magnet.
Because the 290 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread will carry some side load, but an external guide rail is recommended for heavy or off-center loads to prevent premature wear. For applications that must hold a load in place without continuous air pressure, note that this adjuster is not a lock; 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 SAIJ32AX290-40S FAQ
At 0.5 MPa it provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N. The operational speed range is 30-800 mm/s.
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm from the 290 mm nominal length, creating a 250 to 290 mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without live air.
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