Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75S 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 SAIJ32AX400-75S
The AirTAC SAIJ32X400-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring 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 commissioning flexibility. Equipped with a SUS420J2 stainless steel rod, it handles 402 Newtons of push force at 0.5 MPa and includes a magnet for CMSE reed and DMSE electronic sensors.
This adjustable model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during product changeovers; it does not hold the load without live air pressure. For load-holding requirements, specify an external rod lock or explore the SAIL or BSAI series instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75S |
|---|---|
| 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 SAIJ32AX400-75S
| 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 SAIJ32AX400-75S Is Used
End-Position Fine Tuning
Dial in the exact retract distance within the 325-400 mm window during commissioning without adding external mechanical stops.
Product Changeover
Quickly adjust the stroke length on the production line when switching to a new product size that requires a shorter retraction.
Variable End-Stop Routing
Set precise material push-off distances on a conveyor where the required travel length varies between different operational recipes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-75S the Right Cylinder?
Choose this 32 mm bore when your application requires 402N push force at 0.5 MPa (or 563N at 0.7 MPa) alongside a lengthy 400 mm travel. If your machine needs less force, stepping down is not an option within the SAIJ range, but if you require higher thrust, consider the 40 mm bore which delivers 628N at 0.5 MPa. The adjustable-stroke design is selected over a fixed SAI cylinder when you need variable end-stops to accommodate different product sizes on a single line without physically swapping the actuator.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 400 mm stroke, 75 mm adjustment range, PT tapered port thread, and the -S magnet requirement. Because the 400 mm stroke is relatively long for a 12 mm rod, always use an external guide to prevent excessive side-loading and premature seal wear. The standard speed range for this bore is 30-800 mm/s.
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 SAIJ32AX400-75S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 Newtons of push force and 345 Newtons of pull force. At 0.7 MPa, the push force increases to 563 Newtons.
The rear adjusting screw lets you shorten the effective travel from the nominal 400 mm down to as little as 325 mm. This creates a 325-400 mm adjustable window, allowing you to set the exact retract end-position without replacing the cylinder.
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