Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-20 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 SAIJ32BX120-20
The AirTAC SAIJ32X120-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position during commissioning. It provides a usable travel window of 100 to 120 mm, enabling precise variable end-stops without adding external stops or swapping the cylinder.
Delivering 402N of push thrust at 0.5 MPa, this compact 32mm bore unit integrates a G1/8 PT port and a 12mm SUS304 stainless steel rod for enhanced corrosion resistance. It includes adjustable air cushions at both ends to decelererate the load, and its extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-20 |
|---|---|
| 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 SAIJ32BX120-20
| 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 SAIJ32BX120-20 Is Used
Machine Changeover
Dial in the 100-120mm travel window during product size changes to set new end positions rapidly without physically replacing the cylinder.
End-Stop Tuning
Use the 20mm rear adjustment screw to precisely trim the retract end position, compensating for mechanical wear or setup tolerances.
Light Assembly Push
Apply the 402N thrust at 0.5 MPa for light-duty pressing or pushing tasks where the exact end position varies per workpiece.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-20 the Right Cylinder?
Choose this 32mm bore when your application requires 402N of push force at 0.5 MPa; if you need less force, consider a smaller bore, or step up to a 40mm bore providing 628N for higher load demands. The adjustable stroke is ideal for machine setup and product changeovers, offering a 100-120mm travel window that fixed-stroke SAI cylinders cannot match.
This SAIJ model uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither will hold a load without live air pressure—use SAIL or BSAI cylinders for true load-holding requirements. Since no magnet is specified, position sensing requires adding an -S option to use CMSE reed or DMSE electronic sensors.
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 SAIJ32BX120-20 FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push thrust and 345N of pull thrust. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf of push force.
The SAIJ32X120-20 has a rear adjusting screw that allows you to shorten the effective stroke by up to 20mm, creating a usable travel window of 100 to 120mm. This stopper sets the travel end but does not lock or hold the load without continuous air pressure.
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