Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50 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 SAIJ32BX120-50
The AirTAC SAIJ32X120-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 120 mm travel by up to 50 mm for a precise 70-120 mm usable window. It delivers 402 N of push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance. The PT tapered port threads ensure a tight, leak-free pneumatic connection.
Because the adjuster acts purely as a mechanical stop on the retract end, it cannot hold a load without continuous live air pressure. This extruded aluminum barrel includes dual sensor grooves, and because this configuration omits the -S magnet, you would need to specify that option to utilize CMSE reed or DMSE electronic solid-state switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50 |
|---|---|
| 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 SAIJ32BX120-50
| 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 SAIJ32BX120-50 Is Used
Product Changeovers
Dial in the 70-120 mm travel window during format size changes on packaging lines without swapping out the entire cylinder.
End-Stop Calibration
Fine-tune the retract end position during machine commissioning to prevent mechanical interference and optimize positioning.
Variable Positioning
Accommodate multiple part sizes on a single fixture by adjusting the rear stopper screw to set the exact required stroke.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-50 the Right Cylinder?
Choose this 32 mm bore when an application requires fine-tuning the retract position during commissioning or product-size changeovers, rather than relying on a fixed-stroke SAI cylinder. If your setup needs less force, stepping down is not an option below 32 mm, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. For holding loads safely without live air, consider the SAIL or BSAI locking variants instead of this standard adjustable model.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm a 32 mm bore, 120 mm stroke, 50 mm adjustment range, PT port threads, SUS304 rod material, and no magnet. The standard SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ32BX120-50 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder produces 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear mechanical stopper allows you to trim the effective stroke back by up to 50 mm from the 120 mm nominal length, creating a usable travel window of 70 to 120 mm. Note that this stopper only sets the end position and does not lock the load without live air.
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