Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30
The AirTAC SAIJ32X40-30 is a double-acting ISO 15552 profile cylinder with a 32mm bore and a 40mm nominal stroke. An external rear stopper screw lets you dial back the travel by up to 30mm, creating a precise 10 to 40mm usable stroke window for exact end-position tuning at commissioning. It delivers 402N of push force at 0.5 MPa and uses a PT tapered port thread.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The piston rod is SUS420J2 stainless steel for high corrosion resistance, and the extruded aluminum barrel features sensor grooves on both sides. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 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 SAIJ32AX40-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SAIJ32AX40-30 Is Used
End-Position Tuning
Fine-tune the 10-40mm travel window during machine commissioning to achieve exact positioning without changing the cylinder.
Product Changeovers
Quickly adapt the stroke length on packaging lines for varying product sizes using the rear adjustment screw.
Short-Stroke Clamping
Apply up to 402N of clamping force at 0.5 MPa while trimming the stroke to fit tight machinery clearances.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-30 the Right Cylinder?
Choose this 32mm bore when you need 402N of thrust at 0.5 MPa and variable end-stop positioning in a compact footprint. If your application requires less force, there is no smaller bore in this ISO 15552 series, but stepping up to a 40mm bore provides 628N of push force at 0.5 MPa. The SAIJ32X40-30 is ideal for machine setups requiring frequent stroke adjustments rather than a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 32mm bore, 40mm stroke, PT G1/8 port, and the 30mm adjustment code. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because it lacks a magnet, it does not support CMSE or DMSE sensors. If you need fail-safe load holding without continuous air pressure, consider the SAIL or BSAI series instead, as the adjuster here is only a stop.
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 SAIJ32AX40-30 FAQ
A stopper screw at the rear of the cylinder allows you to shorten the effective travel by up to 30mm. This creates a usable stroke window of 10 to 40mm, letting you set the exact end position without adding external stops.
At a standard 0.5 MPa operating pressure, the SAIJ32X40-30 provides 402N of push force and 345N of pull force. It can reach up to 724N of push force at 0.9 MPa.
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