Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-30S 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 SAIJ32AX400-30S
The AirTAC SAIJ32X400-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 370-400 mm usable travel window by allowing you to dial back the 400 mm nominal stroke by up to 30 mm. Within its 32 mm bore, it delivers a 0.5 MPa push force of 402 N and pull force of 345 N.
This unit features a SUS420J2 stainless steel rod (option A) and a built-in magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts strictly as a travel stop for end-position tuning, not a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-30S |
|---|---|
| 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 SAIJ32AX400-30S
| 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 SAIJ32AX400-30S Is Used
Machine Changeover
Dial in the 30 mm adjustment window to switch product sizes on a line without physically swapping out the entire cylinder assembly.
Commissioning Fine-Tune
Trim the effective travel from 400 mm down to 370 mm to perfectly set the retract end-position during initial equipment setup.
Variable End-Stop Positioning
Use the rear stopper screw to establish precise retract limits for multi-part fixture operations requiring slight travel variations.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-30S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke model when your machine setup requires fine end-position tuning at commissioning without adding external stops. If your application needs greater thrust, stepping up to a 40 mm bore increases the 0.5 MPa push force to 628 N. Conversely, if lower friction is needed, dropping to a smaller bore reduces the footprint.
The rear adjuster sets the retract end travel, but the standard air cushions at both ends only manage deceleration; neither mechanism will hold a load without live air pressure. For position holding, consider an external rod lock, a pilot-operated check valve, or AirTAC SAIL and BSAI locking cylinders. To match this ISO 15552 footprint, verify the 400 mm stroke, 30 mm adjustment, PT tapered port threads, and the -S magnet requirement. Because the 400 mm stroke is long, ensure an external guide supports the rod to prevent excessive side-loading.
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 SAIJ32AX400-30S FAQ
At a 0.5 MPa operating pressure, this 32 mm bore cylinder generates a push force of 402 N and a pull force of 345 N. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to shorten the 400 mm nominal stroke by up to 30 mm, creating a usable travel window of 370-400 mm. This stopper only sets the travel end and does not lock the load without live air pressure.
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