Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75
The AirTAC SAIJ32X400-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 400 mm stroke that can be dialed back by up to 75 mm, creating a precise 325-400 mm usable travel window for on-the-fly end-position tuning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and ships without a magnet. The rear adjuster acts purely as a mechanical stop to set the travel end, meaning it cannot hold a load without continuous live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32BX400-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SAIJ32BX400-75 Is Used
Machine Changeover
Dial in the 325-400 mm travel window rapidly when switching product sizes on a packaging line, using the rear screw to set new end stops without changing hardware.
End-Position Tuning
Fine-tune the exact retracted position during commissioning to align delicate tooling, absorbing mechanical tolerance variations safely.
Light Load Positioning
Leverage the 402 N push force to push light materials or divert components on a conveyor, adjusting the stroke length as needed for varying product dimensions.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-75 the Right Cylinder?
Choose this 32 mm bore when an application demands exact end-position tuning during commissioning or product changeovers, avoiding the need to swap cylinders or add external stops. If your setup requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because this model features a 400 mm stroke, the 12 mm rod requires external guidance to prevent excessive side-loading and premature seal wear.
For a drop-in ISO 15552 replacement, match the 32 mm bore, 400 mm stroke, 75 mm adjustment range, PT tapered port thread, and the SUS304 (B) rod material. Note that because no magnet is specified, it will not trigger AirTAC CMSE or DMSE sensors. If true load-holding without air pressure is required, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ32BX400-75 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 achieves 82 kgf of push force.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 400 mm nominal stroke down to 325 mm. It sets the end position but does not lock the load without live air pressure.
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