Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S
The AirTAC SAIJ32X240-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 190 to 240 mm, allowing you to dial back the nominal stroke by up to 50 mm during machine commissioning. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa operating pressure. This specific configuration features SUS420J2 stainless steel rod material (code A) and includes a magnet for position sensing.
The built-in rear screw stopper acts as a hard mechanical end-position tuner rather than a load-holding lock. Because the 240 mm stroke is relatively long for the 32 mm bore, relying solely on the 12 mm rod and M10x1.25 thread for support is insufficient; an external guide rail is recommended to prevent side-load damage. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE solid-state switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 240 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 SAIJ32AX240-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×240 | 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 SAIJ32AX240-50S Is Used
Product Size Changeovers
Dial in the exact end-position within the 190-240 mm window when switching a packaging line to accommodate varying carton dimensions without changing hardware.
Machine Setup Calibration
Fine-tune the retract stroke at commissioning to clear mechanical interference, using the 50 mm adjustment range to perfect the tooling clearance.
Variable End-Stop Actuation
Provide adjustable mechanical stops for light-duty testing fixtures where the 402 N thrust force must halt at slightly different positions per test cycle.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-50S the Right Cylinder?
Select this 32 mm bore adjustable-stroke cylinder when your application requires variable end-stops or frequent product-size changeovers, delivering 402 N push force at 0.5 MPa. If your process needs less force, stepping down is not an option in this series, but stepping up to a 40 mm bore yields 628 N push force. Choose the SAIJ over a fixed-stroke SAI when you need to fine-tune the retract end-position without swapping the cylinder or adding external stops. For an exact ISO 15552 replacement match, verify the 32 mm bore, 240 mm stroke, 50 mm adjustment, PT tapered port thread, and the -S magnet option.
Because the stroke is 240 mm, you must support the load with an external guide to prevent excessive side-loading on the 12 mm piston rod. Remember that neither the rear adjuster nor the air cushions hold the load without live air pressure; for true fail-safe load holding, use an SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock.
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 SAIJ32AX240-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers 82 kgf.
A rear screw stopper lets you mechanically shorten the effective stroke from 240 mm down to 190 mm. This adjuster sets the travel end and deceleration, but it does not lock or hold the load without continuous air pressure.
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