Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75 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 SAIJ32AX400-75
The AirTAC SAIJ32X400-75 is a double-acting ISO 15552 profile cylinder engineered with a rear stroke adjuster, allowing you to dial back the nominal 400 mm stroke by up to 75 mm for a precise 325-400 mm usable travel window. Delivering 563 N of push force at 0.7 MPa, it is built with an SUS420J2 stainless steel rod and PT tapered port threads.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75 |
|---|---|
| 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 SAIJ32AX400-75
| 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 SAIJ32AX400-75 Is Used
Variable End Stops
Dial in the exact 325-400 mm retraction point during machine setup without physically changing the cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the stroke length by up to 75 mm to accommodate different product sizes on the same production line.
Fine Position Tuning
Achieve precise end-of-stroke positioning at commissioning using the rear adjuster, working in tandem with the standard air cushion.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75 the Right Cylinder?
Choose this 32 mm bore when you need 563 N push force at 0.7 MPa with on-the-fly end-position tuning; step up to a 40 mm bore if your application requires 879 N. The 75 mm adjustment window is perfect for variable end stops, but note the rear screw acts only as a travel stop, not a lock. For load-holding without live air pressure, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 400 mm stroke, PT port threads, and SUS420J2 rod material. Because the 400 mm stroke is relatively long for a 12 mm rod, an external guide is recommended to prevent excessive side-loading. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ32AX400-75 FAQ
At 0.5 MPa it provides 402 N push and 345 N pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the effective travel from the nominal 400 mm down to 325 mm, creating a 75 mm adjustable window for fine-tuning without swapping the cylinder.
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