Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50
The AirTAC SAIJ32X145-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 145 mm travel back by up to 50 mm. This creates a highly flexible 95-145 mm usable stroke window, enabling precise end-position tuning during commissioning without swapping out the unit. Built with an SUS304 stainless steel rod and PT tapered ports, it delivers a 402 N push force at 0.5 MPa.
The defining benefit of this adjustable variant is eliminating the need for external stops during machine setup or product changeover. The rear adjustment screw acts purely as a mechanical travel stop to set the retract end, not as a load-holding lock, meaning live air pressure is still required to maintain position. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE reed and DMSE electronic switches if magnet options are added later.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 145 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 SAIJ32BX145-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×145 | 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 SAIJ32BX145-50 Is Used
Machine Setup Tuning
Dial in the exact 95-145 mm retract distance during initial commissioning to perfectly align stops without machining custom spacers.
Product Changeover
Quickly adapt the cylinder's travel window on packaging lines when handling different carton sizes, using the 50 mm adjustment range.
End-Position Trimming
Fine-tune the final retract position within a 50 mm window to compensate for mechanical wear or slight sensor drift over time.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX145-50 the Right Cylinder?
Choose this 32 mm bore when your application requires a 95-145 mm stroke window and a moderate thrust class up to 402 N at 0.5 MPa. If your setup needs less force, stepping down is not an option below 32 mm in this series, but if you require significantly higher pull force, the 40 mm bore provides 528 N pull at 0.5 MPa. The adjustable stroke is specifically selected over a fixed SAI model when you need variable end-stops for product size changes on a line.
Because this is an adjustable-stroke cylinder and not a locking device, it will not hold a load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series. When matching ISO 15552 replacements, ensure the 32 mm bore, 145 mm nominal stroke, 50 mm adjustment, PT port thread, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting set are compatible with your footprint. The 12 mm rod and M10x1.25 thread handle standard side loads well, though long unsupported strokes should always use an external guide.
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 SAIJ32BX145-50 FAQ
At a 0.5 MPa operating pressure, the 32 mm bore provides a push force of 402 N and a pull force of 345 N. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm from the nominal 145 mm, providing a usable travel window of 95-145 mm. It functions as a mechanical stop and does not lock the load without air pressure.
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