Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75
The AirTAC SAIJ32X120-75 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 75 mm. This creates a highly versatile 45-120 mm usable travel window, letting you dial in the exact end position during commissioning without swapping out the physical unit. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, fitting perfectly into compact pneumatic setups.
Built with a SUS304 stainless steel rod and PT tapered ports, this 32 mm bore model handles demanding environments where corrosion resistance and a tight seal are paramount. The extruded aluminum barrel includes sensor grooves on both sides, and while no magnet is specified here, adding one enables compatibility with CMSE reed and DMSE electronic sensors. The rear adjuster acts purely as a mechanical stop to set the retract end, meaning it will not hold the load dynamically without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32BX120-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SAIJ32BX120-75 Is Used
Machine Changeover
Quickly adjust the 45-120 mm travel window during product size transitions on a packaging line without replacing the cylinder.
End-Position Tuning
Fine-tune the retract stroke at commissioning to hit exact mechanical stops, compensating for fixture tolerances.
Compact Clamping
Utilize the 402 N push force at 0.5 MPa for holding light workpieces, dialing back the stroke to fit varying part sizes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75 the Right Cylinder?
Choose this 75 mm adjustable variant when your machine setup requires significant end-position variance or frequent product changeovers that alter the required stroke length. If your application needs less than 402 N of push force at 0.5 MPa, stepping down to a smaller bore is ideal; conversely, heavier loads require stepping up to the 40 mm bore which provides 628 N. Unlike a fixed-stroke SAI cylinder, this model lets you fine-tune the retract position externally rather than adding mechanical stops to your fixture.
Because the total stroke is 120 mm, side-loading risks are moderate, but you should still ensure proper guiding for any unsupported loads. For load-holding without continuous air pressure, note that the rear adjuster on this SAIJ is a travel stop and not a lock; you would need to look at an SAIL or BSAI series cylinder for true pneumatic locking. This cylinder is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32BX120-75 FAQ
At an operating pressure of 0.5 MPa, 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 acts as a mechanical stop that lets you shorten the nominal 120 mm stroke by up to 75 mm. This provides a usable travel window of 45 to 120 mm, which can be fine-tuned during setup, though it does not lock the load without live air.
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