Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40
The AirTAC SAIJ32X145-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the nominal 145 mm travel by up to 40 mm for a precise 105-145 mm usable window. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers 402 N of push force at 0.5 MPa. The extruded aluminum barrel features dual sensor grooves, allowing you to mount CMSE reed or DMSE electronic switches directly without extra brackets.
Because the rear stopper acts strictly as a travel end-deceleration device rather than a locking mechanism, the cylinder requires continuous live air to maintain its position under load. For applications needing true load-holding without pneumatic pressure, consider an external pilot-operated check valve or the AirTAC SAIL lock variant instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 145 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 SAIJ32BX145-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×145 | 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 SAIJ32BX145-40 Is Used
Machine Changeover
Quickly adjust the 105-145 mm travel window during product size changes without replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end position at commissioning to perfect part ejection or clamping depth on precision assembly lines.
Sorting Diverter
Accommodate varying package sizes on a conveyor by dialing in the exact stroke needed to push items into the correct lane.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-40 the Right Cylinder?
Selecting this 32 mm bore makes sense when your machine setup requires exact end-position tuning during commissioning or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your application demands greater thrust, stepping up to the 40 mm bore increases push force to 628 N at 0.5 MPa; conversely, dropping to a smaller bore reduces footprint but sacrifices power. Since this unit features a PT port thread and lacks a magnet (-S), confirm your mounting and sensing requirements before ordering.
When replacing an ISO 15552 cylinder, verify that the 145 mm nominal stroke, 40 mm adjustment range, and G1/8 port size align with your existing manifold. This SAIJ model supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. As the 12 mm rod carries moderate side loads, ensure proper external guiding for the 145 mm travel to prevent premature seal wear.
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 SAIJ32BX145-40 FAQ
The rear adjuster screw allows you to shorten the effective travel by up to 40 mm, creating a usable stroke window of 105 to 145 mm. This lets you set the exact retract end position during setup without changing the cylinder.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. If your application requires higher force, stepping up to a 40 mm bore yields 628 N of push force at the same pressure.
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