Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20 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 SAIJ32X120-20
The AirTAC SAIJ32X120-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 100-120 mm, allowing you to dial back the 120 mm nominal stroke by up to 20 mm during commissioning. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This unit uses a PT tapered G1/8 port and a 12 mm carbon steel rod with an M10x1.25 thread. The reduced SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20 |
|---|---|
| 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 SAIJ32X120-20
| 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 SAIJ32X120-20 Is Used
Machine Changeover
Fine-tune the 100-120 mm travel window during product size changeovers to set new end positions rapidly without mechanical rework.
End-Position Tuning
Dial in the exact retract stroke during commissioning using the rear adjuster, avoiding the need to bolt on external stops.
Variable End Stops
Set custom retract limits for delicate picking tasks where the 12 mm rod and 402 N thrust provide controlled actuation.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X120-20 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when you need precise end-position tuning at machine setup or product changeover without swapping the cylinder or adding external stops. If your application requires higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. For load-holding without continuous air pressure, consider the SAIL lock or BSAI clamp-lock cylinder instead of relying on the rear stopper. This model is dimensionally interchangeable per ISO 15552 and is configured with a PT port, no magnet, and a 20 mm adjustment range.
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 SAIJ32X120-20 FAQ
At an operating pressure of 0.5 MPa, the 32 mm bore provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster acts as a stopper that lets you shorten the 120 mm nominal stroke by up to 20 mm, creating a 100-120 mm usable travel window. It is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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