Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40
The AirTAC SAIJ32X180-40 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 40 mm. This creates a precise 140-180 mm usable stroke window, letting you fine-tune the retract end-position at commissioning without swapping out the cylinder or adding external stops. It delivers 402 N of push force at 0.5 MPa, making it suitable for lighter-duty positioning tasks.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance compared to standard carbon steel. The 12 mm rod and M10x1.25 thread are sized for the 32 mm bore, handling moderate side loads, though long unsupported strokes still require an external guide. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing requires external reed or electronic switches mounted to the groove rather than internal piston detection.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 180 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 SAIJ32AX180-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×180 | 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 SAIJ32AX180-40 Is Used
Machine Changeover
Dial in the 140-180 mm travel window during product size changes on a packaging line without disassembling the actuator.
End-Position Tuning
Fine-tune the retract stop during commissioning to perfect the resting position of a pick-and-place assembly.
Variable End Stops
Set custom retract distances for test fixtures that require different stroke lengths without adding external mechanical stops.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX180-40 the Right Cylinder?
Choose this 32 mm bore cylinder when your application requires 402 N of push force at 0.5 MPa, or step up to the 40 mm bore if you need greater thrust (628 N at 0.5 MPa). The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder.
To match this ISO 15552 interchangeable cylinder, verify your requirements: 32 mm bore, 180 mm nominal stroke, 40 mm adjustment range, PT tapered port threads, and your preferred mounting bracket from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this adjustable series.
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 SAIJ32AX180-40 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 0.9 MPa, the push force increases to 724 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 180 mm stroke by up to 40 mm, creating a usable travel window of 140-180 mm. It only sets the end position and does not lock the load without live air.
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