Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50
The AirTAC SAIJ32X140-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 140 mm stroke and a 50 mm adjustment range, it provides a usable travel window of 90 to 140 mm. This allows you to dial in the exact retract end-position at commissioning without adding external stops. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a G1/8 port and a 12 mm carbon steel rod.
This model is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE reed or DMSE electronic solid-state sensors if a magnet is added later. The SAIJ series supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. The rear adjuster functions strictly as a travel stop to fine-tune deceleration, not as a lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 140 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 SAIJ32BX140-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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 SAIJ32BX140-50 Is Used
Machine Setup Calibration
Dial in the exact 90 to 140 mm retract position during initial commissioning without swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adjust the end-stop distance on packaging lines when handling different product sizes, utilizing the 50 mm trim range.
Precision End-Positioning
Fine-tune the retract stroke to achieve precise end-of-travel locations, relying on the rear stopper to set the final deceleration point.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-50 the Right Cylinder?
Choose the 32 mm bore when your application requires around 402 N of push force at 0.5 MPa, stepping up to the 40 mm bore (628 N) if your load demands more thrust. The SAIJ32X140-50 is selected over a fixed-stroke SAI cylinder when you need a variable end-stop to accommodate product changeovers or fine-tune positioning during machine setup. Because the 140 mm stroke is under 300 mm, side-load stress is moderate, but the 12 mm rod and M10x1.25 thread still require an external guide for heavy lateral loads.
For dimensionally interchangeable ISO 15552 replacement, match the 32 mm bore, 140 mm stroke, 50 mm adjustment range, PT tapered ports, and the SUS304 rod material. Remember that this plain SAIJ cylinder does not hold loads without live air pressure; the rear adjuster only sets the travel end. For dead-stop load holding, consider the SAIL pneumatic lock or BSAI clamp-lock series 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 SAIJ32BX140-50 FAQ
At 0.5 MPa operating pressure, the 32 mm bore provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster acts as a stopper that can shorten the nominal 140 mm stroke by up to 50 mm, giving an adjustable travel window of 90 to 140 mm. It sets the end position and deceleration, but it does not lock or hold the load without live air pressure.
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