Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20S 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 SAIJ32X120-20S
The AirTAC SAIJ32X120-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 32mm bore and a 20mm adjustment range, creating a 100-120mm usable travel window for precise end-position tuning during commissioning. Delivering 402N of push force at 0.5MPa, it integrates a standard carbon steel piston rod and a PT tapered port thread.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops when dialing in the exact retract position. The rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure. For position sensing, the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors mounted in the dual-side barrel grooves.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20S |
|---|---|
| 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 SAIJ32X120-20S
| 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 SAIJ32X120-20S Is Used
Machine Setup Tuning
Dial in the exact 100-120mm retract position during initial commissioning without machining external stopper blocks.
Product Changeover
Quickly adjust the end-stop by up to 20mm on a packaging line when handling slightly different carton sizes.
End-Position Trimming
Fine-tune the stroke endpoint in a light-force assembly fixture to guarantee precise 402N contact alignment.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20S the Right Cylinder?
Choose this 32mm bore when your application requires 402N of push force at 0.5MPa; step up to the 40mm bore if you need 628N. The 20mm adjustment window is ideal for product changeovers on a line, allowing you to fine-tune the 100-120mm travel without replacing the cylinder. When replacing an ISO 15552 cylinder, match the 32mm bore, 120mm stroke, PT port thread, and -S magnet.
Because the SAIJ series uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), verify that your footprint excludes FB, CA, CB, or CR mounts. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as the rear adjuster here is a travel stop, not a brake.
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 SAIJ32X120-20S FAQ
The nominal stroke is 120mm, but the rear adjuster allows you to trim the travel back by up to 20mm, resulting in a 100-120mm adjustable travel window.
At 0.5MPa operating pressure, the SAIJ32X120-20-S provides 402N of push force and 345N of pull force, with a maximum thrust of 82kgf at 1.0MPa.
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