Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S
The AirTAC SAIJ32X120-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 120 mm travel to a precise window between 70 and 120 mm. Delivering 402 N of push force at 0.5 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance and features a built-in magnet for position sensing.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The rear screw acts purely as a travel stop and works in tandem with the standard variable air cushions at both ends, but it does not lock the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32BX120-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SAIJ32BX120-50S Is Used
Changeover Optimization
Quickly fine-tune the 70-120 mm stroke window during product size changeovers without replacing the cylinder or adding mechanical shims.
End-Stop Calibration
Dial in the exact retracted position during machine commissioning using the rear adjuster, ensuring precise placement of lightweight parts.
Sensor-Driven Positioning
Leverage the integrated magnet with DMSE electronic sensors to confirm movement across the adjusted travel range in automated assembly lines.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50S the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning at commissioning, stepping up from smaller fixed-stroke units if you need the 402 N thrust at 0.5 MPa. The generous 50 mm adjustment range on a 120 mm stroke provides exceptional flexibility for variable product sizes on a single machine. Because this model includes the -S magnet, it directly supports AirTAC CMSE reed and DMSE electronic sensors for automated feedback.
When replacing an ISO 15552 cylinder, verify the 120 mm nominal stroke, the 50 mm maximum adjustment, PT tapered porting, and the SUS304 (B) rod material. The standard SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the 12 mm rod and M10x1.25 thread are relatively small, ensure proper alignment to avoid side-loading issues.
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 SAIJ32BX120-50S FAQ
At a standard operating pressure of 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can deliver up to 724 N of push force at 0.9 MPa.
The rear adjuster screw allows you to reduce the effective travel from the 120 mm nominal stroke down to as little as 70 mm. This creates a 70-120 mm usable window, enabling fine-tuning of the end position without changing the cylinder.
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