Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100 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 SAIJ32BX400-100
The AirTAC SAIJ32X400-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 12mm SUS304 stainless steel rod with an M10x1.25 thread. By turning the rear stopper screw, you can trim the effective travel back by up to 100mm, creating a precise 300-400mm usable stroke window without swapping hardware.
This bore size features a G1/8 port and dual-side sensor grooves on the extruded aluminum barrel. Because it lacks a magnet, position sensing requires adding one or using external stops. The rear adjuster acts strictly as a travel stop to fine-tune the end position, not as a lock; it cannot hold a load without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100 |
|---|---|
| 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 SAIJ32BX400-100
| 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 SAIJ32BX400-100 Is Used
Product Changeovers
Dial in the 300-400mm travel window on the fly to accommodate different package lengths on a packaging line without changing the cylinder.
End-Stop Calibration
Fine-tune the retracted position during machine setup to perfectly align a 402N push action with a delicate part without adding external stop blocks.
Variable Diverting
Adjust the stroke length on a sorting diverter arm to handle varying product sizes on the fly, ensuring accurate positioning at the end of travel.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-100 the Right Cylinder?
Choose this 32mm bore when an application requires a nominal 400mm stroke but demands exact end-position tuning during commissioning or product changeovers. If you need greater thrust, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. Conversely, if your force requirements are lower, dropping to a smaller standard SAI saves space. To replace this cylinder, match the 32mm bore, 400mm stroke, 100mm adjustment range, PT tapered port thread, and SUS304 (B) rod material.
With a 400mm stroke on a 12mm rod, the unsupported piston is susceptible to side-loading. Even with the larger M10x1.25 thread, you should use an external guide rail to prevent rod binding and premature seal wear. For applications requiring the load to be held mechanically without air pressure, pair this cylinder with an external pilot-operated check valve or select an AirTAC SAIL or BSAI locking cylinder instead.
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 SAIJ32BX400-100 FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At the maximum 1.0 MPa pressure, it can output up to 82kgf.
The rear adjuster screw lets you shorten the nominal 400mm stroke by up to 100mm, providing a usable travel window of 300-400mm. This stopper sets the end position but does not lock the load without live air.
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