Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S
The AirTAC SAIJ32X425-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the 425 mm nominal travel by up to 100 mm. This yields a usable end-position window of 325-425 mm, allowing precise on-machine tuning during product changeovers without physically swapping the barrel or adding external stops. Delivering 402 N of push force at 0.5 MPa, it fits compact pneumatic setups.
This SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a piston magnet for position sensing via AirTAC CMSE reed or DMSE electronic solid-state switches. It features PT tapered port threads (G1/8), dual-side sensor grooves on the extruded aluminum barrel, and variable air cushions at both ends. Note that the rear adjuster and cushions only decelerate the moving load; they do not function as a lock to hold position without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAIJ32BX425-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SAIJ32BX425-100S Is Used
Product Changeover Tuning
Dial in the exact end-position from 325 to 425 mm during packaging line format changes without replacing the cylinder or adding external mechanical stops.
Long-Stroke Assembly Press
Provides 402 N of push force at 0.5 MPa for pressing components, with a 100 mm adjustment range to compensate for varying part thicknesses on the fly.
Adjustable Material Feed
Sets variable stroke endpoints for feeding different lengths of raw material into a machine, using the rear stopper to define the precise cut-off point.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-100S the Right Cylinder?
Select this 32 mm bore unit when your application requires a 325-425 mm travel window and you need frequent end-position adjustments without mechanical rebuilds. If your process demands higher thrust, stepping up to the 40 mm bore provides 628 N of push force at 0.5 MPa. Conversely, if your force requirements are lower, dropping to a smaller bore is advised. Because the 425 mm stroke is relatively long for a 12 mm rod, you must use an external guide to prevent excessive side-loading and rod deflection.
Choose this adjustable-stroke SAIJ model over a fixed-stroke SAI cylinder when commissioning fine-tuning or variable end-stops are required. For true load-holding without continuous air pressure, this cylinder is insufficient; you would need to specify a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. To match this ISO 15552 interchangeable unit, confirm the 425 mm stroke, 100 mm adjuster, PT port, and the -S magnet option.
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 SAIJ32BX425-100S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective travel by up to 100 mm. This creates a usable stroke window of 325-425 mm, allowing you to fine-tune the end position at commissioning without swapping the cylinder. The adjuster only sets the travel end; it does not lock the load without live air pressure.
At 0.5 MPa operating pressure, the 32 mm bore generates 402 N of push force and 345 N of pull force. This specific model includes a piston magnet (-S) for use with AirTAC CMSE reed switches and DMSE electronic solid-state sensors, and it features a SUS304 stainless steel rod with PT tapered ports.
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